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Koichi Tanaka

Koichi Tanaka

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 60 9548 8640 681 628 468 17958

Koichi Tanaka publications per year

The chart shows the history of publications by Koichi Tanaka between 1976 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Koichi Tanaka published across 51 years, from 1976 to 2026, averaging 12.6 papers a year. Output peaked at 26 publications in 1988. 6 of the 642 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1976 to 2026. Vertical axis: number of publications, 0 to 26. Peak 26 publications in 1988. 1976: 3 publications 1977: 3 publications 1978: 0 publications 1979: 2 publications 1980: 2 publications 1981: 2 publications 1982: 7 publications 1983: 15 publications 1984: 13 publications 1985: 22 publications 1986: 13 publications 1987: 13 publications 1988: 26 publications 1989: 18 publications 1990: 19 publications 1991: 10 publications 1992: 16 publications 1993: 21 publications 1994: 13 publications 1995: 17 publications 1996: 12 publications 1997: 7 publications 1998: 17 publications 1999: 14 publications 2000: 19 publications 2001: 19 publications 2002: 20 publications 2003: 25 publications 2004: 19 publications 2005: 22 publications 2006: 10 publications 2007: 12 publications 2008: 19 publications 2009: 17 publications 2010: 16 publications 2011: 14 publications 2012: 20 publications 2013: 15 publications 2014: 20 publications 2015: 13 publications 2016: 11 publications 2017: 4 publications 2018: 18 publications 2019: 13 publications 2020: 15 publications 2021: 4 publications 2022: 1 publication 2023: 3 publications 2024: 2 publications 2025: 4 publications 2026: 2 publications
1976 2026

642 publications in total across all disciplines

View publications per year as a table
Koichi Tanaka: publications per year, 1976 to 2026
Year Publications
1976 3
1977 3
1978 0
1979 2
1980 2
1981 2
1982 7
1983 15
1984 13
1985 22
1986 13
1987 13
1988 26
1989 18
1990 19
1991 10
1992 16
1993 21
1994 13
1995 17
1996 12
1997 7
1998 17
1999 14
2000 19
2001 19
2002 20
2003 25
2004 19
2005 22
2006 10
2007 12
2008 19
2009 17
2010 16
2011 14
2012 20
2013 15
2014 20
2015 13
2016 11
2017 4
2018 18
2019 13
2020 15
2021 4
2022 1
2023 3
2024 2
2025 4
2026 2
Total 642
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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.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 461–480 publications, is where this scientist sits. 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
61–80 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.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265 468
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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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.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 60–61 D-Index, is where this scientist sits. 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
40–41 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.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882 60
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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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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