World's Best Scientists 2026 revealed!
Koichi Tanaka

Koichi Tanaka

D-Index & Metrics

Chemistry

D-Index
60
Citations
17958
World Ranking
9548
National Ranking
681

Koichi Tanaka 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 Koichi Tanaka 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: 468 publications — 86th percentile

86% of scientists in this discipline score the same or lower.

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

Koichi Tanaka 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 Koichi Tanaka 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: 60 D-Index — 47th percentile

47% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2002 - Nobel Prize for their development of soft desorption ionisation methods for mass spectrometric analyses of biological macromolecules

Overview

Koichi Tanaka is affiliated with Shimadzu Corp in Japan and has contributed extensively to the fields of medicine and chemistry, with a particular focus on spectroscopy. Their research spans 19 publications in medicine and 15 in chemistry, emphasizing subfields such as spectroscopy, physiology, molecular biology, pharmacology, and surgery.

The main topics explored in their work include:

  • 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
  • Amyloidosis: Diagnosis, Treatment, Outcomes

Tanaka's recent papers cover a range of specialized subjects in chemistry and analytical techniques:

  • 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 publication venues include:

  • Alzheimer's & Dementia
  • Analytical Chemistry
  • Journal of Liver Transplantation
  • Journal of the American Society for Mass Spectrometry
  • Nano Letters

Koichi Tanaka has collaborated regularly with a group of researchers, notably including Shinichi Iwamoto, Naoki Kaneko, Sadanori Sekiya, Hidenori Takahashi, and Daiki Asakawa.

Recognition of their scientific contributions includes receiving the Nobel Prize in 2002 for the development of soft desorption ionisation methods for mass spectrometric analyses of biological macromolecules.

Best Publications

  • Protein and polymer analyses up to m/z 100 000 by laser ionization time-of-flight mass spectrometry

    Koichi Tanaka;Hiroaki Waki;Yutaka Ido;Satoshi Akita

  • Solvent-free organic synthesis

    K Tanaka;F Toda

  • Oxidative coupling reactions of phenols with iron(III) chloride in the solid state

    Fumio Toda;Koichi Tanaka;Shinji Iwata

  • Catalytic asymmetric nitroaldol reaction using optically active rare earth BINOL complexes : investigation of the catalyst structure

    Hiroaki Sasai;Takeyuki Suzuki;Noriie Itoh;Koichi Tanaka

  • A novel chiral porous metal-organic framework: asymmetric ring opening reaction of epoxide with amine in the chiral open space.

    Koichi Tanaka;Shinji Oda;Motoo Shiro

  • Derivatization for Stabilizing Sialic Acids in MALDI-MS

    Sadanori Sekiya;Yoshinao Wada;Koichi Tanaka

  • The origin of macromolecule ionization by laser irradiation (Nobel lecture).

    Koichi Tanaka

  • Host–guest complex formation by a solid–solid reaction

    Fumio Toda;Koichi Tanaka;Ayako Sekikawa

  • Solvent-free Organic Synthesis: TANAKA/SOLV.FREE ORG.SYNT O-BK

    Unknown

  • Jahn–Teller instability in spinel Li–Mn–O

    Atsuo Yamada;Masahiro Tanaka;Koichi Tanaka;Koji Sekai

  • Rapid sequencing and disulfide mapping of peptides containing disulfide bonds by using 1,5-diaminonaphthalene as a reductive matrix

    Yuko Fukuyama;Shinichi Iwamoto;Koichi Tanaka

  • Design of a new chiral host compound, trans-4,5-bis(hydroxydiphenylmethyl)-2,2-dimethyl-1,3-dioxacyclopentane.An effective optical resolution of bicyclic enones through host-guest complex formation

    Fumio Toda;Koichi Tanaka

  • Ionic Liquid Matrixes Optimized for MALDI-MS of Sulfated/Sialylated/Neutral Oligosaccharides and Glycopeptides

    Yuko Fukuyama;Shuuichi Nakaya;Yuzo Yamazaki;Koichi Tanaka

  • Highly efficient chromatographic resolution of sulfoxides using a new homochiral MOF–silica composite

    Koichi Tanaka;Toshihide Muraoka;Daisuke Hirayama;Atsushi Ohnish

  • Aldol condensations in the absence of solvent: acceleration of the reaction and enhancement of the stereoselectivity

    Fumio Toda;Koichi Tanaka;Koki Hamai

  • β‐Carboline alkaloids as matrices for UV‐matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry in positive and negative ion modes. Analysis of proteins of high molecular mass, and of cyclic and acyclic oligosaccharides

    Hiroshi Nonami;Koichi Tanaka;Yuko Fukuyama;Rosa Erra-Balsells

  • Solvent-Free Coumarin Synthesis

    Teizo Sugino;Koichi Tanaka

  • Reformatsky and Luche reaction in the absence of solvent

    Koichi Tanaka;Satoshi Kishigami;Fumio Toda

  • Efficient optical resolution of 2,2'-dihydroxy-1,1'-binaphthyl and related compounds by complex formation with novel chiral host compounds derived from tartaric acid

    Fumio Toda;Koichi Tanaka

  • Novel plasma biomarker surrogating cerebral amyloid deposition.

    Naoki Kaneko;Akinori Nakamura;Yukihiko Washimi;Takashi Kato

  • The presence of Foxp3 expressing T cells within grafts of tolerant human liver transplant recipients.

    Ying Li;Xiangdong Zhao;Donghua Cheng;Hironori Haga

Frequent Co-Authors

Hiroto Egawa
Hiroto Egawa Kyoto University
Shinji Uemoto
Shinji Uemoto Kyoto University
Thomas C. W. Mak
Thomas C. W. Mak Chinese University of Hong Kong
Israel Goldberg
Israel Goldberg Tel Aviv University
Ken Hirotsu
Ken Hirotsu Osaka Metropolitan University
Masako Kato
Masako Kato Hokkaido University
Katsuhiko Yanagisawa
Katsuhiko Yanagisawa Japan Society for the Promotion of Science
Motoo Shiro
Motoo Shiro Nagoya Institute of Technology
Kengo Ito
Kengo Ito Nagoya University
Takashi Kato
Takashi Kato Nagoya University

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