World's Best Scientists 2026 revealed!
Koichi Tanaka

Koichi Tanaka

D-Index & Metrics

Medicine

D-Index
90
Citations
28980
World Ranking
12226
National Ranking
361

Koichi Tanaka publication distribution in Medicine in 2026

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

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 610 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 464 publications — 51st percentile

51% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Koichi Tanaka D-index placement in Medicine in 2026

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

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 399 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 90 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Research.com Recognitions

  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians

Overview

Koichi Tanaka is affiliated with Kyoto University in Japan and has made contributions primarily in the fields of medicine and chemistry. Their work focuses extensively on several subfields, including spectroscopy, physiology, molecular biology, pharmacology, and surgery. Tanaka's research addresses a variety of topics such as Alzheimer's disease research and treatments, advanced proteomics techniques and applications, mass spectrometry techniques and applications, analytical chemistry and chromatography, organ transplantation techniques and outcomes, liver disease and transplantation, as well as amyloidosis diagnosis, treatment, and outcomes.

Their recent papers include:

  • Acyltransferase that catalyses the condensation of polyketide and peptide moieties of goadvionin hybrid lipopeptides, 2020, Nature Chemistry
  • Highly Efficient Light Helicity Detection of Enantiomers by Chiral Metal-Organic Framework Thin Films, 2023, Nano Letters
  • Gas-Phase Peptide Fragmentation Induced by Hydrogen Attachment, from Principle to Sequencing of Amide Nitrogen-Methylated Peptides, 2020, Analytical Chemistry
  • Hot Hydrogen Atom Irradiation of Protonated/Deprotonated Peptide in an Ion Trap Facilitates Fragmentation through Heated Radical Formation, 2022, Journal of the American Chemical Society
  • Discrimination of Aspartic and Isoaspartic Acid Residues in Peptides by Tandem Mass Spectrometry with Hydrogen Attachment Dissociation, 2024, Analytical Chemistry

Frequent co-authors collaborating with Tanaka include:

  • Shinichi Iwamoto (12 publications)
  • Naoki Kaneko (8 publications)
  • Sadanori Sekiya (6 publications)
  • Hidenori Takahashi (5 publications)
  • Daiki Asakawa (5 publications)

Tanaka has published in various venues, with frequent contributions to:

  • Alzheimer's & Dementia (8 publications)
  • Analytical Chemistry (2 publications)
  • Journal of Liver Transplantation (2 publications)
  • Journal of the American Society for Mass Spectrometry (2 publications)
  • Nano Letters (1 publication)

Tanaka has been recognized as a member of the Association of American Physicians.

Best Publications

  • Monolayered mesenchymal stem cells repair scarred myocardium after myocardial infarction.

    Yoshinori Miyahara;Noritoshi Nagaya;Masaharu Kataoka;Bobby Yanagawa

  • Impact of graft size mismatching on graft prognosis in liver transplantation from living donors.

    Tetsuya Kiuchi;Mureo Kasahara;Kenji Uryuhara;Yukihiro Inomata

  • The utility of marginal donors in liver transplantation.

    Ronald W. Busuttil;Koichi Tanaka

  • Surgical techniques and innovations in living related liver transplantation.

    K Tanaka;S Uemoto;Y Tokunaga;S Fujita

  • Right lobe graft in living donor liver transplantation

    Yukihiro Inomata;Shinji Uemoto;Katsuhiro Asonuma;Hiroto Egawa

  • Weaning of immunosuppression in living donor liver transplant recipients.

    Mitsuhisa Takatsuki;Shinji Uemoto;Yukihiro Inomata;Hiroto Egawa

  • A new cell-permeable peptide allows successful allogeneic islet transplantation in mice

    Hirofumi Noguchi;Masayuki Matsushita;Teru Okitsu;Teru Okitsu;Akiyoshi Moriwaki

  • Anatomical variations and surgical strategies in right lobe living donor liver transplantation: lessons from 120 cases.

    Taro Nakamura;Koichi Tanaka;Tetsuya Kiuchi;Mureo Kasahara

  • Operative morbidity of living liver donors in Japan.

    Koji Umeshita;Kenji Fujiwara;Kendo Kiyosawa;Masatoshi Makuuchi

  • Liver transplantation using a right lobe graft from a living related donor.

    Yoshio Yamaoka;Masanobu Washida;Kazuo Honda;Koichi Tanaka

  • Latent hepatitis B virus infection in healthy individuals with antibodies to hepatitis B core antigen.

    Hiroyuki Marusawa;Shinji Uemoto;Makoto Hijikata;Yoshihide Ueda

  • Transmission of hepatitis B virus from hepatitis B core antibody- positive donors in living related liver transplants

    Shinji Uemoto;Kohachiro Sugiyama;Hiroyuki Marusawa;Yukihiro Inomata

  • Small-for-size graft in living donor liver transplantation: How far should we go?

    Tetsuya Kiuchi;Koichi Tanaka;Takashi Ito;Fumitaka Oike

  • Insulin independence after living-donor distal pancreatectomy and islet allotransplantation

    Shinichi Matsumoto;Teru Okitsu;Yasuhiro Iwanaga;Hirofumi Noguchi

  • Analyses of peripheral blood mononuclear cells in operational tolerance after pediatric living donor liver transplantation.

    Ying Li;Takaaki Koshiba;Atsushi Yoshizawa;Yukihide Yonekawa

  • Pharmacokinetics, safety, and endocrine and appetite effects of ghrelin administration in young healthy subjects

    Takashi Akamizu;Kazuhiko Takaya;Taiga Irako;Hiroshi Hosoda

  • Induction of antigen-specific immunologic tolerance by in vivo and in vitro antigen-specific expansion of naturally arising Foxp3+CD25+CD4+ regulatory T cells.

    Eiji Nishimura;Toshiko Sakihama;Ruka Setoguchi;Koichi Tanaka

  • C3435T polymorphism in the MDR1 gene affects the enterocyte expression level of CYP3A4 rather than Pgp in recipients of living-donor liver transplantation.

    Maki Goto;Satohiro Masuda;Hideyuki Saito;Shinji Uemoto

  • Biliary Reconstruction in Right Lobe Living-Donor Liver Transplantation: Comparison of Different Techniques in 321 Recipients

    Mureo Kasahara;Hiroto Egawa;Yasutsugu Takada;Fumitaka Oike

  • Expansion of selection criteria for patients with hepatocellular carcinoma in living donor liver transplantation.

    Takashi Ito;Yasutsugu Takada;Mikiko Ueda;Hironori Haga

Frequent Co-Authors

Shinji Uemoto
Shinji Uemoto Kyoto University
Hiroto Egawa
Hiroto Egawa Kyoto University
Ken-ichi Inui
Ken-ichi Inui Kyoto Pharmaceutical University
Tsutomu Chiba
Tsutomu Chiba Kyoto University
Satohiro Masuda
Satohiro Masuda Himeji Dokkyo University
Hiroyuki Marusawa
Hiroyuki Marusawa Kyoto University
Junji Konishi
Junji Konishi Kyoto University
Yoshizo Asano
Yoshizo Asano Fujita Health University
Yoshio Yamaoka
Yoshio Yamaoka Oita University

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