World's Best Scientists 2026 revealed!
VIEW LIST
Koji Nakayama

Koji Nakayama

Nagasaki University
Japan

D-Index & Metrics

Biology and Biochemistry

D-Index
72
Citations
14031
World Ranking
6467
National Ranking
421

Koji Nakayama publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Koji Nakayama sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 183 publications — 42nd percentile

42% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Koji Nakayama D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Koji Nakayama sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 72 D-Index — 69th percentile

69% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Koji Nakayama is affiliated with Nagasaki University in Japan. Their research spans multiple fields, primarily focusing on Engineering and Medicine, with significant contributions in Electrical and Electronic Engineering, Epidemiology, Infectious Diseases, Molecular Biology, and Radiology, Nuclear Medicine and Imaging.

Their research work covers a range of topics including Silicon Carbide Semiconductor Technologies, Electromagnetic Compatibility and Noise Suppression, HVDC Systems and Fault Protection, Biochemical and Molecular Research, Integrated Circuits and Semiconductor Failure Analysis, Silicon and Solar Cell Technologies, and Spectroscopy Techniques in Biomedical and Chemical Research.

Koji Nakayama has published in a variety of venues, with frequent appearances in the Japanese Journal of Applied Physics, Materials Science Forum, Materials Science in Semiconductor Processing, Journal of Pharmaceutical and Biomedical Analysis, and Vaccine. Some key publications include:

  • "Aluminum channeling in 4H-SiC by high-energy implantation above 10 MeV" (2024, Materials Science in Semiconductor Processing)
  • "Low VF 4H-SiC N-i-P diodes using newly developed low-resistivity p-type substrates" (2020, Japanese Journal of Applied Physics)
  • "Quantification of API content in pharmaceutical tablets within milliseconds by time-stretch near-infrared transmission spectroscopy" (2024, Journal of Pharmaceutical and Biomedical Analysis)
  • "Shorter incubation period in symptomatic measles patients who had no history of measles vaccination" (2024, Vaccine)
  • "13 kV SiC-DMOSFETs and body diodes for HVDC MMC converters" (2021, Japanese Journal of Applied Physics)

Frequent collaborators with Koji Nakayama include Yoshiyuki Yonezawa, Junki Sahara, Masaya Fujimoto, Yasufumi Yagisawa, and Aya Ikarashi. Each has coauthored multiple papers with Nakayama, indicating ongoing research partnerships.

Best Publications

  • Genetic Analyses of Proteolysis, Hemoglobin Binding, and Hemagglutination of Porphyromonas gingivalis CONSTRUCTION OF MUTANTS WITH A COMBINATION OF rgpA, rgpB, kgp, AND hagA

    Yixin Shi;Dinath B. Ratnayake;Kuniaki Okamoto;Naoko Abe

  • Cloning and characterization of the asd gene of Salmonella typhimurium: use in stable maintenance of recombinant plasmids in Salmonella vaccine strains.

    Jorge E. Galán;Koji Nakayama;Roy Curtiss

  • U0126 and PD98059, specific inhibitors of MEK, accelerate differentiation of RAW264.7 cells into osteoclast-like cells.

    Hitoshi Hotokezaka;Eiko Sakai;Kazuhiro Kanaoka;Kan Saito

  • A protein secretion system linked to bacteroidete gliding motility and pathogenesis

    Keiko Sato;Mariko Naito;Hideharu Yukitake;Hideki Hirakawa

  • Escherichia coli RecQ protein is a DNA helicase.

    Keiko Umezu;Koji Nakayama;Hiroaki Nakayama

  • Construction and Characterization of Arginine-specific Cysteine Proteinase (Arg-gingipain)-deficient Mutants of Porphyromonas gingivalis EVIDENCE FOR SIGNIFICANT CONTRIBUTION OF Arg-GINGIPAIN TO VIRULENCE

    Koji Nakayama;Tomoko Kadowaki;Kuniaki Okamoto;Kenji Yamamoto

  • Determination of the Genome Sequence of Porphyromonas gingivalis Strain ATCC 33277 and Genomic Comparison with Strain W83 Revealed Extensive Genome Rearrangements in P. gingivalis

    Mariko Naito;Hideki Hirakawa;Atsushi Yamashita;Naoya Ohara

  • Isolation and genetic characterization of a thymineless death-resistant mutant of Escherichia coli K12: identification of a new mutation (recQ1) that blocks the RecF recombination pathway.

    Hiroaki Nakayama;Koji Nakayama;Ritsuko Nakayama;Nobuto Irino

  • Molecular genetics and nomenclature of proteases of Porphyromonas gingivalis

    M. A. Curtis;H. K. Kuramitsu;M. Lantz;F. L. Macrina

  • Arg-gingipain acts as a major processing enzyme for various cell surface proteins in Porphyromonas gingivalis.

    Tomoko Kadowaki;Koji Nakayama;Fuminobu Yoshimura;Kuniaki Okamoto

  • Involvement of a lysine-specific cysteine proteinase in hemoglobin adsorption and heme accumulation by Porphyromonas gingivalis

    Kuniaki Okamoto;Koji Nakayama;Tomoko Kadowaki;Naoko Abe

  • Porphyromonas gingivalis Proteinases as Virulence Determinants in Progression of Periodontal Diseases

    Tomoko Kadowaki;Koji Nakayama;Kuniaki Okamoto;Naoko Abe

  • Involvement of arginine-specific cysteine proteinase (Arg-gingipain) in fimbriation of Porphyromonas gingivalis.

    Koji Nakayama;Fuminobu Yoshimura;Tomoko Kadowaki;Kenji Yamamoto

  • Por Secretion System-Dependent Secretion and Glycosylation of Porphyromonas gingivalis Hemin-Binding Protein 35

    Mikio Shoji;Keiko Sato;Hideharu Yukitake;Yoshio Kondo

  • Porphyromonas gingivalis Gingipains and Adhesion to Epithelial Cells

    Tsute Chen;Koji Nakayama;Lynn Belliveau;Margaret J. Duncan

  • The recQ gene of Escherichia coli K12: molecular cloning and isolation of insertion mutants.

    Koji Nakayama;Nobuto Irino;Hiroaki Nakayama

  • Molecular analysis of RANKL‐independent cell fusion of osteoclast‐like cells induced by TNF‐α, lipopolysaccharide, or peptidoglycan

    Hitoshi Hotokezaka;Eiko Sakai;Naoya Ohara;Yuka Hotokezaka

  • Identification of Porphyromonas gingivalis proteins secreted by the Por secretion system.

    Keiko Sato;Hideharu Yukitake;Yuka Narita;Mikio Shoji

  • Cloning and sequencing of the gene encoding a novel lysine-specific cysteine proteinase (Lys-gingipain) in Porphyromonas gingivalis: structural relationship with the arginine-specific cysteine proteinase (Arg-gingipain).

    Kuniaki Okamoto;Tomoko Kadowaki;Koji Nakayama;Kenji Yamamoto

  • Identification of a New Membrane-associated Protein That Influences Transport/Maturation of Gingipains and Adhesins of Porphyromonas gingivalis

    Keiko Sato;Eiko Sakai;Paul D. Veith;Mikio Shoji

Frequent Co-Authors

Mikio Shoji
Mikio Shoji Hirosaki University
Kenji Yamamoto
Kenji Yamamoto Kyushu University
Mark J. McBride
Mark J. McBride University of Wisconsin–Milwaukee
Daniel Grenier
Daniel Grenier Université Laval
Katsumi Imada
Katsumi Imada Osaka University
Eric C. Reynolds
Eric C. Reynolds University of Melbourne
Fuminobu Yoshimura
Fuminobu Yoshimura Aichi Gakuin University
Jan Potempa
Jan Potempa University of Louisville
Tetsuya Hayashi
Tetsuya Hayashi Kyushu University
Masahira Hattori
Masahira Hattori Waseda University

External Links

Personal website of Koji Nakayama

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

The fields of Biology and Biochemistry open doors to a wide range of online degree options and evolving career pathways. Many students now choose to pursue online biology degrees for their flexibility and convenience, enabling them to gain foundational scientific knowledge from anywhere.

For those interested in healthcare, asn online nursing programs offer a streamlined entry into nursing careers, combining scientific coursework with essential clinical skills.

Nutrition science is another growing area. Accredited online nutrition degrees prepare students to work in wellness, food science, and healthcare, addressing the urgent demand for qualified nutrition professionals.

For those aspiring to leadership roles, online mha programs cahme accredited are ideal for advancing into healthcare management and administration, focusing on vital skills for running medical facilities and organizations.

Each of these online pathways allows biology and biochemistry students to tailor their education toward diverse, in-demand careers across the sciences and health sectors.

Best Scientists Citing Koji Nakayama

Jan Potempa

Jan Potempa

University of Louisville

Publications: 154

Eric C. Reynolds

Eric C. Reynolds

University of Melbourne

Publications: 76

Richard J. Lamont

Richard J. Lamont

University of Louisville

Publications: 59

Atsuo Amano

Atsuo Amano

Osaka University

Publications: 38

James Travis

James Travis

University of Georgia

Publications: 37

Fuminobu Yoshimura

Fuminobu Yoshimura

Aichi Gakuin University

Publications: 30

Mikio Shoji

Mikio Shoji

Hirosaki University

Publications: 28

Daniel Grenier

Daniel Grenier

Université Laval

Publications: 28

Michael A. Curtis

Michael A. Curtis

King's College London

Publications: 25

Neil M. O'Brien-Simpson

Neil M. O'Brien-Simpson

University of Melbourne

Publications: 23

Caroline Attardo Genco

Caroline Attardo Genco

Tufts University

Publications: 23

Ian D. Hickson

Ian D. Hickson

University of Copenhagen

Publications: 22

Yoshimitsu Abiko

Yoshimitsu Abiko

Nihon University

Publications: 21

Howard K. Kuramitsu

Howard K. Kuramitsu

University at Buffalo, State University of New York

Publications: 20

Kenji Yamamoto

Kenji Yamamoto

Kyushu University

Publications: 19

Yasuhiro Furuichi

Yasuhiro Furuichi

National Institute of Genetics

Publications: 19

Trending Scientists

Sindo Kou

Sindo Kou

University of Wisconsin–Madison

Jeffrey J. Volenec

Jeffrey J. Volenec

Purdue University West Lafayette

Tanguy Jaffré

Tanguy Jaffré

Institut de Recherche pour le Développement

Vickie E. Baracos

Vickie E. Baracos

University of Alberta

Christoph H. Keitel

Christoph H. Keitel

Max Planck Society

Satya Parida

Satya Parida

The Pirbright Institute

Jean-Louis Dufresne

Jean-Louis Dufresne

École Normale Supérieure

Peter Steier

Peter Steier

University of Vienna

James G. Wetmur

James G. Wetmur

Icahn School of Medicine at Mount Sinai

Peter Maček

Peter Maček

University of Ljubljana

Xiao-Chi Liu

Xiao-Chi Liu

Chinese Academy of Sciences

Mario P. Colombo

Mario P. Colombo

Fondazione IRCCS Istituto Nazionale dei Tumori

L K Poulsen

L K Poulsen

University of Copenhagen

Peter Müller

Peter Müller

MIT

Nada Jabado

Nada Jabado

McGill University

James H. Warram

James H. Warram

Harvard University

Related Biology and Biochemistry Rankings & Guides

2026 Online Nutrition Degree Programs for Veterans: GI Bill Benefits, Costs & Top Considerations

2026 Online Nutrition Degree Programs for Veterans: GI Bill Benefits, Costs & Top Considerations
2026 How to Become an RNFA: Education, Salary, and Job Outlook

2026 How to Become an RNFA: Education, Salary, and Job Outlook
2026 Cheapest and Shortest Online Healthcare Administration Degree Programs That Pay Well: Cost, Duration, and Salary Outlook

2026 Cheapest and Shortest Online Healthcare Administration Degree Programs That Pay Well: Cost, Duration, and Salary Outlook
2026 Fastest Online Biology Degree Programs Ranking in Florida

2026 Fastest Online Biology Degree Programs Ranking in Florida
2026 Can You Get a Biology Degree Master's Without a Related Bachelor's Degree?

2026 Can You Get a Biology Degree Master's Without a Related Bachelor's Degree?
2026 Easiest Online Psychiatric Mental Health Nurse Practitioner Degree Programs That Pay Well: High-Salary Degrees with Simple Admissions

2026 Easiest Online Psychiatric Mental Health Nurse Practitioner Degree Programs That Pay Well: High-Salary Degrees with Simple Admissions
2026 How to Become a Pediatric Occupational Therapist: Education, Salary, and Job Outlook

2026 How to Become a Pediatric Occupational Therapist: Education, Salary, and Job Outlook
2026 Radiology Technician vs. Respiratory Therapist Degree: Explaining the Difference

2026 Radiology Technician vs. Respiratory Therapist Degree: Explaining the Difference
2026 How to Become a Pathologist: Education, Salary, and Job Outlook

2026 How to Become a Pathologist: Education, Salary, and Job Outlook
2026 Is an Adult Gerontology Acute Care Nurse Practitioner Master's Degree Worth It? ROI, Salary & Career Impact

2026 Is an Adult Gerontology Acute Care Nurse Practitioner Master's Degree Worth It? ROI, Salary & Career Impact
2026 Nutrition Degree vs. Certificate: Which Should You Choose?

2026 Nutrition Degree vs. Certificate: Which Should You Choose?
2026 Public Health Degree Master's Programs You Can Start Without Meeting All Requirements

2026 Public Health Degree Master's Programs You Can Start Without Meeting All Requirements
2026 Fastest Online Health Informatics Master's Degree Programs You Can Finish in Under 2 Years

2026 Fastest Online Health Informatics Master's Degree Programs You Can Finish in Under 2 Years
2026 Psychiatric Nurse Practitioner vs. Therapist: Explaining the Difference

2026 Psychiatric Nurse Practitioner vs. Therapist: Explaining the Difference
2026 Which Schools Offer Flexible Start-Anytime Enrollment for a Regulatory Science & Affairs Degree Master's Program?

2026 Which Schools Offer Flexible Start-Anytime Enrollment for a Regulatory Science & Affairs Degree Master's Program?
2026 What Can You Do With a Bioinformatics Degree?

2026 What Can You Do With a Bioinformatics Degree?
2026 Radiology Technologist vs. Ultrasound Technologist: Explaining the Difference

2026 Radiology Technologist vs. Ultrasound Technologist: Explaining the Difference
2026 Fastest Online Bioinformatics Master’s Degree Programs

2026 Fastest Online Bioinformatics Master’s Degree Programs
2026 How Fast Can You Get a Biology Degree Online?

2026 How Fast Can You Get a Biology Degree Online?
2026 Can You Get a Nutrition Degree Master's Without a Related Bachelor's Degree?

2026 Can You Get a Nutrition Degree Master's Without a Related Bachelor's Degree?
2026 Biotechnology Careers: Guide to Career Paths, Options & Salary

2026 Biotechnology Careers: Guide to Career Paths, Options & Salary

Recently Published Articles

2026 Is a Game Design Degree Worth It?

2026 Is a Game Design Degree Worth It?
2026 Which Schools Offer Flexible Start-Anytime Enrollment for an Audio & Music Program?

2026 Which Schools Offer Flexible Start-Anytime Enrollment for an Audio & Music Program?
2026 Different Types of Healthcare Administration Degrees and Their Salaries

2026 Different Types of Healthcare Administration Degrees and Their Salaries
2026 What Can You Do with a Crime Analysis Master's Degree? Careers, Salaries & Growth

2026 What Can You Do with a Crime Analysis Master's Degree? Careers, Salaries & Growth
2026 Best AI Degrees for Students Interested in Sports Analytics

2026 Best AI Degrees for Students Interested in Sports Analytics
2026 How to Become a Mechanic in Louisiana: Requirements & Certification

2026 How to Become a Mechanic in Louisiana: Requirements & Certification
2026 Best One Year MBA Programs

2026 Best One Year MBA Programs
2026 Online Social Work Bachelor's Degree Program Costs: Tuition & Fees

2026 Online Social Work Bachelor's Degree Program Costs: Tuition & Fees
2026 Certifications and Training for Psychology Undergraduate Students?

2026 Certifications and Training for Psychology Undergraduate Students?
2026 Best Online Nutrition Degree Master's Programs for Working Professionals

2026 Best Online Nutrition Degree Master's Programs for Working Professionals
2026 Nursing vs. Healthcare Administration Degree: Explaining the Difference

2026 Nursing vs. Healthcare Administration Degree: Explaining the Difference
2026 Cheapest Online MBA Programs That Are Worth It

2026 Cheapest Online MBA Programs That Are Worth It
2026 Best Data Science Degrees for Working Adults

2026 Best Data Science Degrees for Working Adults
2026 Fastest Way to Become a Licensed Counselor or Therapist

2026 Fastest Way to Become a Licensed Counselor or Therapist
2026 How to Become a Caregiver: Certification Requirements in Oregon

2026 How to Become a Caregiver: Certification Requirements in Oregon
2026 Online Exercise Science Degree Programs Costs: Tuition & Fees

2026 Online Exercise Science Degree Programs Costs: Tuition & Fees
2026 Online Kinesiology Bachelor's Degree Programs That Accept Transfer Credits

2026 Online Kinesiology Bachelor's Degree Programs That Accept Transfer Credits
2026 Is Marketing a Hard Major? What Students Should Know

2026 Is Marketing a Hard Major? What Students Should Know
2026 How to Become a Licensed Therapist (LPC) in Nashville, TN

2026 How to Become a Licensed Therapist (LPC) in Nashville, TN
2026 Best Criminal Justice Certifications to Consider

2026 Best Criminal Justice Certifications to Consider
2026 Online Cybersecurity Degree Master's Programs That Accept Transfer Credits

2026 Online Cybersecurity Degree Master's Programs That Accept Transfer Credits