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Hirotatsu Kojima

Hirotatsu Kojima

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 47 15462 13940 1210 1098 138 15182

Hirotatsu Kojima publications per year

The chart shows the history of publications by Hirotatsu Kojima between 1987 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hirotatsu Kojima published across 39 years, from 1987 to 2025, averaging 4.4 papers a year. Output peaked at 19 publications in 2017. 10 of the 173 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1987 to 2025. Vertical axis: number of publications, 0 to 19. Peak 19 publications in 2017. 1987: 1 publication 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 0 publications 1993: 1 publication 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 1 publication 1998: 10 publications 1999: 2 publications 2000: 4 publications 2001: 2 publications 2002: 3 publications 2003: 6 publications 2004: 6 publications 2005: 3 publications 2006: 5 publications 2007: 8 publications 2008: 6 publications 2009: 4 publications 2010: 5 publications 2011: 8 publications 2012: 8 publications 2013: 5 publications 2014: 4 publications 2015: 5 publications 2016: 6 publications 2017: 19 publications 2018: 4 publications 2019: 8 publications 2020: 8 publications 2021: 6 publications 2022: 9 publications 2023: 6 publications 2024: 6 publications 2025: 4 publications
1987 2025

173 publications in total across all disciplines

View publications per year as a table
Hirotatsu Kojima: publications per year, 1987 to 2025
Year Publications
1987 1
1988 0
1989 0
1990 0
1991 0
1992 0
1993 1
1994 0
1995 0
1996 0
1997 1
1998 10
1999 2
2000 4
2001 2
2002 3
2003 6
2004 6
2005 3
2006 5
2007 8
2008 6
2009 4
2010 5
2011 8
2012 8
2013 5
2014 4
2015 5
2016 6
2017 19
2018 4
2019 8
2020 8
2021 6
2022 9
2023 6
2024 6
2025 4
Total 173
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Hirotatsu Kojima 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 Hirotatsu Kojima 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, 121–140 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: 138 publications — 10th percentile

10% 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
121–140 918 138
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
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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Hirotatsu Kojima 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 Hirotatsu Kojima 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, 46–47 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: 47 D-Index — 14th percentile

14% 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 47
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
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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Overview

Hirotatsu Kojima is affiliated with the University of Tokyo in Japan and has focused their research on Biochemistry, Genetics and Molecular Biology, as well as Medicine. Their work spans multiple subfields including Molecular Biology, Immunology, Infectious Diseases, Oncology, and Physiology.

The research topics that Kojima has addressed include:

  • Genomics, phytochemicals, and oxidative stress
  • Glutathione Transferases and Polymorphisms
  • Computational Drug Discovery Methods
  • Receptor Mechanisms and Signaling
  • Endoplasmic Reticulum Stress and Disease
  • ATP Synthase and ATPases Research
  • Immune cells in cancer

Among recent papers associated with Kojima are:

  • Targeting FROUNT with disulfiram suppresses macrophage accumulation and its tumor-promoting properties, 2020, Nature Communications
  • Organoid-derived intestinal epithelial cells are a suitable model for preclinical toxicology and pharmacokinetic studies, 2022, iScience
  • Molecular action of larvicidal flavonoids on ecdysteroidogenic glutathione S-transferase Noppera-bo in Aedes aegypti, 2022, BMC Biology
  • Inhibitors of the protein-protein interaction between phosphorylated p62 and Keap1 attenuate chemoresistance in a human hepatocellular carcinoma cell line, 2020, Free Radical Research
  • Drug cytotoxicity screening using human intestinal organoids propagated with extensive cost-reduction strategies, 2023, Scientific Reports

Frequent coauthors in Kojima's publications include Takayoshi Okabe, Tetsuo Nagano, Riyo Imamura, Yuuta Fujikawa, and Toshiya Senda.

The scientist has published several articles in venues such as Scientific Reports, Biochemical and Biophysical Research Communications, iScience, SSRN Electronic Journal, and Nature Communications. The highest number of publications appear in Scientific Reports and Biochemical and Biophysical Research Communications.

Best Publications

  • Detection and Imaging of Nitric Oxide with Novel Fluorescent Indicators: Diaminofluoresceins

    Hirotatsu Kojima;Naoki Nakatsubo;Kazuya Kikuchi;Shigenori Kawahara

  • Highly sensitive fluorescence probes for nitric oxide based on boron dipyrromethene chromophore-rational design of potentially useful bioimaging fluorescence probe.

    Yu Gabe;Yasuteru Urano;Kazuya Kikuchi;Hirotatsu Kojima

  • Development of an iminocoumarin-based zinc sensor suitable for ratiometric fluorescence imaging of neuronal zinc.

    Kensuke Komatsu;Yasuteru Urano;Hirotatsu Kojima;Tetsuo Nagano

  • Design and Synthesis of a Library of BODIPY-Based Environmental Polarity Sensors Utilizing Photoinduced Electron-Transfer-Controlled Fluorescence ON/OFF Switching

    Hisato Sunahara;Yasuteru Urano;Hirotatsu Kojima;Tetsuo Nagano

  • Development of a highly specific rhodamine-based fluorescence probe for hypochlorous acid and its application to real-time imaging of phagocytosis.

    Suguru Kenmoku;Yasuteru Urano;Hirotatsu Kojima;Tetsuo Nagano

  • Fluorescent Indicators for Imaging Nitric Oxide Production

    Hirotatsu Kojima;Yasuteru Urano;Kazuya Kikuchi;Tsunehiko Higuchi

  • Selective zinc sensor molecules with various affinities for Zn2+, revealing dynamics and regional distribution of synaptically released Zn2+ in hippocampal slices.

    Kensuke Komatsu;Kazuya Kikuchi;Hirotatsu Kojima;Yasuteru Urano

  • Development of a ratiometric fluorescent zinc ion probe in near-infrared region, based on tricarbocyanine chromophore.

    Kazuki Kiyose;Hirotatsu Kojima;Yasuteru Urano;Tetsuo Nagano

  • Development and application of a near-infrared fluorescence probe for oxidative stress based on differential reactivity of linked cyanine dyes.

    Daihi Oushiki;Hirotatsu Kojima;Takuya Terai;Makoto Arita

  • Mechanism-based molecular design of highly selective fluorescence probes for nitrative stress.

    Tasuku Ueno;Yasuteru Urano;Hirotatsu Kojima;Tetsuo Nagano

  • Highly Sensitive Near-Infrared Fluorescent Probes for Nitric Oxide and Their Application to Isolated Organs

    Eita Sasaki;Hirotatsu Kojima;Hiroaki Nishimatsu;Yasuteru Urano

  • Direct evidence of nitric oxide production from bovine aortic endothelial cells using new fluorescence indicators: diaminofluoresceins

    Naoki Nakatsubo;Hirotatsu Kojima;Kazuya Kikuchi;Hiroshi Nagoshi

  • Development of a Zinc Ion-Selective Luminescent Lanthanide Chemosensor for Biological Applications

    Kenjiro Hanaoka;Kazuya Kikuchi;Hirotatsu Kojima;Yasuteru Urano

  • A Thiol-Reactive Fluorescence Probe Based on Donor-Excited Photoinduced Electron Transfer: Key Role of Ortho Substitution

    Takuya Matsumoto;Yasuteru Urano;Takuji Shoda;Hirotatsu Kojima,†,§ and

  • Rational Principles for Modulating Fluorescence Properties of Fluorescein

    Tasuku Ueno;Yasuteru Urano;Ken-Ichi Setsukinai;Hideo Takakusa

  • Rational design of ratiometric near-infrared fluorescent pH probes with various pKa values, based on aminocyanine

    Takuya Myochin;Kazuki Kiyose;Kenjiro Hanaoka;Hirotatsu Kojima

  • Design and synthesis of fluorescent probes for selective detection of highly reactive oxygen species in mitochondria of living cells.

    Yuichiro Koide;Yasuteru Urano;Suguru Kenmoku;Hirotatsu Kojima

  • Bioimaging of Nitric Oxide with Fluorescent Indicators Based on the Rhodamine Chromophore

    Hirotatsu Kojima;Miki Hirotani;Naoki Nakatsubo;Kazuya Kikuchi

  • DEVELOPMENT OF A FLUORESCENT INDICATOR FOR NITRIC OXIDE BASED ON THE FLUORESCEIN CHROMOPHORE

    Hirotatsu Kojima;Kuniko Sakurai;Kazuya Kikuchi;Shigenori Kawahara

  • Functional Near‐Infrared Fluorescent Probes

    Kazuki Kiyose;Hirotatsu Kojima;Tetsuo Nagano

  • Selective detection of zinc ions with novel luminescent lanthanide probes.

    Kenjiro Hanaoka;Kazuya Kikuchi;Kazuya Kikuchi;Hirotatsu Kojima;Yasuteru Urano

Frequent Co-Authors

Tetsuo Nagano
Tetsuo Nagano University of Tokyo
Yasuteru Urano
Yasuteru Urano University of Tokyo
Kazuya Kikuchi
Kazuya Kikuchi Osaka University
Kenjiro Hanaoka
Kenjiro Hanaoka Keio University
Takuya Terai
Takuya Terai University of Tokyo
Toru Komatsu
Toru Komatsu University of Tokyo
Yasunobu Hirata
Yasunobu Hirata University of Tokyo
Junken Aoki
Junken Aoki Tohoku University
Hiroshi Nishimasu
Hiroshi Nishimasu University of Tokyo
Osamu Nureki
Osamu Nureki University of Tokyo

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