World's Best Scientists 2026 revealed!
VIEW LIST
Nobuaki Koga

Nobuaki Koga

Nagoya University
Japan

D-Index & Metrics

Chemistry

D-Index
57
Citations
9815
World Ranking
11292
National Ranking
832

Nobuaki Koga publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Nobuaki Koga sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 207 publications — 35th percentile

35% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Nobuaki Koga D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Nobuaki Koga sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 57 D-Index — 39th percentile

39% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Nobuaki Koga is affiliated with Nagoya University in Japan, where their research spans the fields of Chemistry and Engineering. Their work primarily focuses on Organic Chemistry, Mechanical Engineering, and Process Chemistry and Technology, with additional contributions to Mechanics of Materials and Biomaterials.

The main research topics covered by Nobuaki Koga include:

  • Organometallic Complex Synthesis and Catalysis
  • Carbon dioxide utilization in catalysis
  • Biodegradable polymer synthesis and properties
  • Lubricants and Their Additives
  • Organoboron and organosilicon chemistry
  • Bioluminescence and chemiluminescence research
  • Adhesion, Friction, and Surface Interactions

Their publication record includes papers in prominent venues such as The Journal of Physical Chemistry B, Chemistry - An Asian Journal, Organometallics, Photochemistry and Photobiology, and The Journal of Physical Chemistry C.

Some recent publications by Nobuaki Koga and their colleagues are:

  • ReaxFF Reactive Molecular Dynamics Simulations of Mechano-Chemical Decomposition of Perfluoropolyether Lubricants in Heat-Assisted Magnetic Recording (2020), The Journal of Physical Chemistry C
  • Molecules with a TEMPO-based head group as high-performance organic friction modifiers (2022), Friction
  • Theoretical Elucidation of the Effect of Counteranions on the Olefin Polymerization Activity of (Pyridylamido)Hf(IV) Catalyst by QM and REMD Studies: MeB(C6F5)3- versus B(C6F5)4- (2020), Organometallics
  • Adsorption Behavior of TEMPO-Based Organic Friction Modifiers during Sliding between Iron Oxide Surfaces: A Molecular Dynamics Study (2022), Langmuir
  • Atomistic Simulation of the Polymerization Reaction by a (Pyridylamido)hafnium(IV) Catalyst: Counteranion Influence on the Reaction Rate and the Living Character of the Catalytic System (2021), The Journal of Physical Chemistry B

Frequent collaborators in their research include Nana Misawa, Masataka Nagaoka, Yūichi Suzuki, Kentaro Matsumoto, and Hedong Zhang.

Best Publications

  • Ab initio molecular orbital studies of catalytic elementary reactions and catalytic cycles of transition-metal complexes

    Nobuaki. Koga;Keiji. Morokuma

  • Determination of the lowest energy point on the crossing seam between two potential surfaces using the energy gradient

    Nobuaki Koga;Keiji Morokuma

  • An ab initio MO and MM study of homogeneous olefin polymerization with silylene-bridged zirconocene catalyst and its regio- and stereoselectivity

    Hiroshi Kawamura-Kuribayashi;Nobuaki Koga;Keiji Morokuma

  • Ruthenium-catalyzed hydration of 1-alkynes to give aldehydes: insight into anti-Markovnikov regiochemistry.

    Makoto Tokunaga;Toshiaki Suzuki;Nobuaki Koga;Tomoaki Fukushima

  • Acetylene .pi.-Coordination, Slippage to .sigma.-Coordination, and 1,2-Hydrogen Migration Taking Place on a Transition Metal. The case of a Ru(II) Complex as Studied by Experiment and ab Initio Molecular Orbital Simulations

    Yasuo Wakatsuki;Nobuaki Koga;Hiroshi Yamazaki;Keiji Morokuma

  • Mechanistic Aspects of the Alternating Copolymerization of Propene with Carbon Monoxide Catalyzed by Pd(II) Complexes of Unsymmetrical Phosphine−Phosphite Ligands

    Kyoko Nozaki;Naomasa Sato;Yoichi Tonomura;Masako Yasutomi

  • Ab Initio Theoretical Study on Ethylene Polymerization with Homogeneous Silylene-Bridged Group 4 Metallocene Catalysts. Ethylene Insertion and .beta.-Elimination

    Tohru Yoshida;Nobuaki Koga;Keiji Morokuma

  • Quantifying the electronic effect of substituted phosphine ligands via molecular electrostatic potential.

    C H Suresh;Nobuaki Koga

  • An ab initio MO study on ethylene and propylene insertion into the titanium-methyl bond in CH3TiCl2+ as a model of homogeneous olefin polymerization

    Hiroshi Kawamura-Kuribayashi;Nobuaki Koga;Keiji Morokuma

  • Application of the New “Integrated MO + MM” (IMOMM) Method to the Organometallic Reaction Pt(PR3)2 + H2 (R = H, Me, t-Bu, and Ph)

    Toshiaki Matsubara;Feliu Maseras;Nobuaki Koga;Keiji Morokuma

  • Role of agostic interaction in .beta.-elimination of palladium and nickel complexes. An ab initio MO study

    Nobuaki Koga;Shigeru Obara;Kazuo Kitaura;Keiji Morokuma

  • An ab Initio MO Study on the Transformation of Acetylene to Vinylidene in the Coordination Sphere of Rhodium(I). The Intra- and Intermolecular Proton Transfer Mechanism

    Yasuo Wakatsuki;Nobuaki Koga;and Helmut Werner;Keiji Morokuma

  • Comparison of biradical formation between enediyne and enyne-allene. Ab initio CASSCF and MRSDCI study

    Nobuaki Koga;Keiji Morokuma

  • Ab initio MO study of the C60 anion radical: the Jahn—Teller distortion and electronic structure

    Nobuaki Koga;Keiji Morokuma

  • A theoretical study of olefin insertions into titanium-carbon and titanium-hydrogen bonds. An analysis by paired interacting orbitals

    Hiroshi Fujimoto;Terumasa Yamasaki;Hirotaka Mizutani;Nobuaki Koga

  • Study of the Effect of Structural Factors on Magnetism of Di-μ-alkoxodicopper(II) Complexes by Ab Initio MO Calculations

    Makoto Handa;Nobuaki Koga;Sigeo Kida

  • C−C Bond Cleavage of Acetonitrile by a Carbonyl Iron Complex with a Silyl Ligand

    Hiroshi Nakazawa;Takafumi Kawasaki;Katsuhiko Miyoshi;Cherumuttathu H. Suresh

  • Ab Initio MO Study of the Full Cycle of Olefin Hydroformylation Catalyzed by a Rhodium Complex, RhH(CO)2(PH3)2

    Toshiaki Matsubara;Nobuaki Koga;Yanbo Ding;and Djamaladdin G. Musaev

  • Interaction frontier orbitals

    Kenichi Fukui;Nobuaki Koga;Hiroshi Fujimoto

  • Ab initio MO study of the full catalytic cycle of olefin hydrogenation by the Wilkinson catalyst RhCl(PR3)3

    C. Daniel;N. Koga;J. Han;X. Y. Fu

Frequent Co-Authors

Keiji Morokuma
Keiji Morokuma Kyoto University
Cherumuttathu H. Suresh
Cherumuttathu H. Suresh National Institute for Interdisciplinary Science and Technology
Eiichi Nakamura
Eiichi Nakamura University of Tokyo
Masaharu Nakamura
Masaharu Nakamura Kyoto University
Djamaladdin G. Musaev
Djamaladdin G. Musaev Emory University
Shigeyoshi Sakaki
Shigeyoshi Sakaki Kyoto University
Feliu Maseras
Feliu Maseras Institut Català d'Investigació Química
Masayuki Endo
Masayuki Endo Kyoto University
Yasuo Wakatsuki
Yasuo Wakatsuki Bridgestone (Japan)
Kazuo Kitaura
Kazuo Kitaura Kyoto University

External Links

Personal website of Nobuaki Koga

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

Studying Chemistry in the USA opens doors to a variety of career paths, including some that require additional specialized education. For those interested in healthcare, understanding is it hard to become a pharmacist is a crucial step. Pharmacists play a vital role in medication management and patient care, often requiring rigorous education and licensing.

Alternatively, careers in forensic science offer intriguing opportunities for chemistry graduates. Pursuing a forensic science bachelor degree online can provide the necessary knowledge to work in crime labs or investigative roles.

For those interested in more specialized roles, exploring autopsy technician jobs might be appealing. These positions combine chemistry knowledge with anatomy and pathology, requiring targeted certification and training.

Additionally, advanced studies like forensic psychology master's programs can complement a chemistry background, leading to careers that bridge science and criminal justice.

Each pathway offers unique challenges and rewards, so considering online degree options aligned with your interests can facilitate a focused and flexible approach to advancing your career in chemistry and related fields.

Best Scientists Citing Nobuaki Koga

Keiji Morokuma

Keiji Morokuma

Kyoto University

Publications: 51

Cherumuttathu H. Suresh

Cherumuttathu H. Suresh

National Institute for Interdisciplinary Science and Technology

Publications: 48

Satoshi Maeda

Satoshi Maeda

Hokkaido University

Publications: 31

Shigeyoshi Sakaki

Shigeyoshi Sakaki

Kyoto University

Publications: 30

Feliu Maseras

Feliu Maseras

Institut Català d'Investigació Química

Publications: 28

Jeremy N. Harvey

Jeremy N. Harvey

KU Leuven

Publications: 24

Kyoko Nozaki

Kyoko Nozaki

University of Tokyo

Publications: 24

Odile Eisenstein

Odile Eisenstein

University of Montpellier

Publications: 21

Agustí Lledós

Agustí Lledós

Autonomous University of Barcelona

Publications: 20

Eiichi Nakamura

Eiichi Nakamura

University of Tokyo

Publications: 19

Naoto Chatani

Naoto Chatani

Osaka University

Publications: 18

Miguel A. Esteruelas

Miguel A. Esteruelas

University of Zaragoza

Publications: 17

Helmut Schwarz

Helmut Schwarz

Technical University of Berlin

Publications: 16

Miquel Solà

Miquel Solà

University of Girona

Publications: 15

Djamaladdin G. Musaev

Djamaladdin G. Musaev

Emory University

Publications: 15

Thomas R. Cundari

Thomas R. Cundari

University of North Texas

Publications: 15

Trending Scientists

Alamgir Karim

Alamgir Karim

University of Houston

Ishak Ahmad

Ishak Ahmad

National University of Malaysia

Patrick Villechaise

Patrick Villechaise

Institute PPrime

Jixin Chen

Jixin Chen

Southeast University

Esther M. Leerkes

Esther M. Leerkes

University of North Carolina at Greensboro

Mark Klein

Mark Klein

University of Liverpool

Stuart Bevan

Stuart Bevan

King's College London

Michael L. Carroll

Michael L. Carroll

University of Tromsø - The Arctic University of Norway

Jie Fu

Jie Fu

Huazhong University of Science and Technology

J. M. Barnola

J. M. Barnola

Grenoble Alpes University

Richard Sparks

Richard Sparks

University of Edinburgh

Wensheng Zhang

Wensheng Zhang

Iowa State University

Christoph F. Dietrich

Christoph F. Dietrich

Hirslanden Private Hospital Group

Geoffrey M. While

Geoffrey M. While

University of Tasmania

Marten Scheffer

Marten Scheffer

Wageningen University & Research

Robert M. Hubbard

Robert M. Hubbard

US Forest Service

Related Chemistry Rankings & Guides

2026 How Fast Can You Get a Forensic Science Degree Online?

2026 How Fast Can You Get a Forensic Science Degree Online?
2026 Credit Requirements for a Forensic Science Degree Explained

2026 Credit Requirements for a Forensic Science Degree Explained
2026 Forensic Science Degree Coursework Explained: What Classes Can You Expect to Take?

2026 Forensic Science Degree Coursework Explained: What Classes Can You Expect to Take?
2026 How to Become a Medical Examiner: Education, Salary, and Job Outlook

2026 How to Become a Medical Examiner: Education, Salary, and Job Outlook
2026 Online Chemistry Degree Programs Costs: Tuition & Fees

2026 Online Chemistry Degree Programs Costs: Tuition & Fees
2026 How to Become a Crime Scene Photographer: Education, Salary, and Job Outlook

2026 How to Become a Crime Scene Photographer: Education, Salary, and Job Outlook
2026 Fastest Online Forensic Science Degree Programs You Can Finish in Under 2 Years

2026 Fastest Online Forensic Science Degree Programs You Can Finish in Under 2 Years
2026 How to Become a Medicolegal Death Investigator: Education, Salary, and Job Outlook

2026 How to Become a Medicolegal Death Investigator: Education, Salary, and Job Outlook
2026 How Much Does a Forensic Science Degree Program Cost? Tuition, Fees & Total Expense Breakdown

2026 How Much Does a Forensic Science Degree Program Cost? Tuition, Fees & Total Expense Breakdown
2026 Is Demand for Forensic Science Degree Graduates Growing or Declining?

2026 Is Demand for Forensic Science Degree Graduates Growing or Declining?
2026 Biotechnology Careers: Guide to Career Paths, Options & Salary

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

2026 Can You Get a Forensic Science Degree Master's Without a Related Bachelor's Degree?
2026 How Fast Can You Get a Chemistry Degree Online?

2026 How Fast Can You Get a Chemistry Degree Online?
2026 How to Become a Coroner: Education, Salary, and Job Outlook

2026 How to Become a Coroner: Education, Salary, and Job Outlook

Recently Published Articles

2026 Cheapest Accelerated Liberal Arts Degree Programs Online

2026 Cheapest Accelerated Liberal Arts Degree Programs Online
2026 Licensing Exams Required After Completing an Educational Leadership Degree Program

2026 Licensing Exams Required After Completing an Educational Leadership Degree Program
2026 How to Become a Medical Biller & Coder in Minnesota

2026 How to Become a Medical Biller & Coder in Minnesota
2026 How to Become a Certified Medical Coder and Biller From Home: Salary & Career Paths

2026 How to Become a Certified Medical Coder and Biller From Home: Salary & Career Paths
2026 Military-Friendly Online Family Nurse Practitioner Master's Degree Programs: Benefits, Accreditation & Career Outcomes

2026 Military-Friendly Online Family Nurse Practitioner Master's Degree Programs: Benefits, Accreditation & Career Outcomes
2026 Cheapest Online Social Work Bachelor's Degrees That Pay Well: Tuition, Duration, and Earnings

2026 Cheapest Online Social Work Bachelor's Degrees That Pay Well: Tuition, Duration, and Earnings
2026 Different Types of Counseling Degrees: Which Is Right for You?

2026 Different Types of Counseling Degrees: Which Is Right for You?
2026 Best Online Master’s In Legal Studies Degree Programs

2026 Best Online Master’s In Legal Studies Degree Programs
2026 Best Accredited Online Graphic Design Bachelor's Degree Programs

2026 Best Accredited Online Graphic Design Bachelor's Degree Programs
2026 Best ADN Nursing Programs in Florida: Online & Campus

2026 Best ADN Nursing Programs in Florida: Online & Campus
2026 Best Nurse Practitioner Programs in North Dakota – Accredited Schools Online & Campus

2026 Best Nurse Practitioner Programs in North Dakota – Accredited Schools Online & Campus
2026 Fastest Online Bachelor's in Mathematics Degree Programs

2026 Fastest Online Bachelor's in Mathematics Degree Programs
2026 Most Affordable Online Criminal Justice Degrees

2026 Most Affordable Online Criminal Justice Degrees
2026 Online Elementary Education Bachelor's Degree Programs With No Application Fee

2026 Online Elementary Education Bachelor's Degree Programs With No Application Fee
2026 Most Affordable Online Dental Assistant Associate Degree Programs

2026 Most Affordable Online Dental Assistant Associate Degree Programs
2026 Nutrition Degree Master's Programs You Can Start Without Meeting All Requirements

2026 Nutrition Degree Master's Programs You Can Start Without Meeting All Requirements
2026 How to Become a Mechanic in Georgia: Requirements & Certification

2026 How to Become a Mechanic in Georgia: Requirements & Certification
2026 Most Affordable Online Master’s Degrees in Biotechnology

2026 Most Affordable Online Master’s Degrees in Biotechnology
2026 How Fast Can You Get a Biology Degree Online?

2026 How Fast Can You Get a Biology Degree Online?
2026 Best Online Social Media Marketing Degree Programs

2026 Best Online Social Media Marketing Degree Programs
2026 How to Become a Caregiver: Certification Requirements in Minnesota

2026 How to Become a Caregiver: Certification Requirements in Minnesota