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Koichi Koshimizu

Koichi Koshimizu

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 54 12852 11561 970 886 185 7783

Koichi Koshimizu publications per year

The chart shows the history of publications by Koichi Koshimizu between 1956 and 2018, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Koichi Koshimizu published across 63 years, from 1956 to 2018, averaging 3.6 papers a year. Output peaked at 13 publications in 1991. 1 of the 224 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1956 to 2018. Vertical axis: number of publications, 0 to 13. Peak 13 publications in 1991. 1956: 1 publication 1957: 0 publications 1958: 0 publications 1959: 1 publication 1960: 4 publications 1961: 4 publications 1962: 0 publications 1963: 1 publication 1964: 0 publications 1965: 0 publications 1966: 4 publications 1967: 2 publications 1968: 5 publications 1969: 0 publications 1970: 1 publication 1971: 1 publication 1972: 5 publications 1973: 2 publications 1974: 6 publications 1975: 3 publications 1976: 3 publications 1977: 7 publications 1978: 11 publications 1979: 6 publications 1980: 6 publications 1981: 2 publications 1982: 4 publications 1983: 6 publications 1984: 2 publications 1985: 10 publications 1986: 7 publications 1987: 11 publications 1988: 5 publications 1989: 4 publications 1990: 8 publications 1991: 13 publications 1992: 4 publications 1993: 10 publications 1994: 9 publications 1995: 7 publications 1996: 6 publications 1997: 5 publications 1998: 4 publications 1999: 4 publications 2000: 10 publications 2001: 5 publications 2002: 7 publications 2003: 3 publications 2004: 2 publications 2005: 0 publications 2006: 0 publications 2007: 0 publications 2008: 1 publication 2009: 1 publication 2010: 0 publications 2011: 0 publications 2012: 0 publications 2013: 0 publications 2014: 0 publications 2015: 0 publications 2016: 0 publications 2017: 0 publications 2018: 1 publication
1956 2018

224 publications in total across all disciplines

View publications per year as a table
Koichi Koshimizu: publications per year, 1956 to 2018
Year Publications
1956 1
1957 0
1958 0
1959 1
1960 4
1961 4
1962 0
1963 1
1964 0
1965 0
1966 4
1967 2
1968 5
1969 0
1970 1
1971 1
1972 5
1973 2
1974 6
1975 3
1976 3
1977 7
1978 11
1979 6
1980 6
1981 2
1982 4
1983 6
1984 2
1985 10
1986 7
1987 11
1988 5
1989 4
1990 8
1991 13
1992 4
1993 10
1994 9
1995 7
1996 6
1997 5
1998 4
1999 4
2000 10
2001 5
2002 7
2003 3
2004 2
2005 0
2006 0
2007 0
2008 1
2009 1
2010 0
2011 0
2012 0
2013 0
2014 0
2015 0
2016 0
2017 0
2018 1
Total 224
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Koichi Koshimizu 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 Koshimizu 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, 181–200 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: 185 publications — 27th percentile

27% 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 1,344 185
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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Koichi Koshimizu 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 Koshimizu 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, 54–55 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: 54 D-Index — 31st percentile

31% 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 54
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

Koichi Koshimizu is affiliated with Kindai University in Japan.

No recent papers, co-authors, publication venues, book publications, fields of study, subfields of study, main topics of work, or awards have been documented for this researcher.

Best Publications

  • Inhibitory effect of citrus nobiletin on phorbol ester-induced skin inflammation, oxidative stress, and tumor promotion in mice.

    Akira Murakami;Yoshimasa Nakamura;Koji Torikai;Takuji Tanaka

  • Zerumbone, a Southeast Asian ginger sesquiterpene, markedly suppresses free radical generation, proinflammatory protein production, and cancer cell proliferation accompanied by apoptosis: the α,β-unsaturated carbonyl group is a prerequisite

    Akira Murakami;Daisuke Takahashi;Takashi Kinoshita;Koichi Koshimizu

  • Inhibitory effects of ursolic and oleanolic ancid on skin tumor promotion by 12-O-tetradecanoylphorbol-13-acetate

    Harukuni Tokuda;Hajime Ohigashi;Koichi Koshimizu;Yohei Ito

  • Niaziminin, a Thiocarbamate from the Leaves of Moringa oleifera, Holds a Strict Structural Requirement for Inhibition of Tumor-Promoter-Induced Epstein-Barr Virus Activation

    Akira Murakami;Yumi Kitazono;Suratwadee Jiwajinda;Koichi Koshimizu

  • Search for possible antitumor promoters by inhibition of 12-O-tetradecanoylphorbol-13-acetate-induced Epstein-Barr virus activation; Ursolic acid and oleanolic acid from an anti-inflammatory Chinese medicinal plant, Glechoma hederaceae L.

    Hajime Ohigashi;Hitoshi Takamura;Koichi Koshimizu;Harukuni Tokuda

  • Auraptene, a citrus coumarin, inhibits 12-O-tetradecanoylphorbol-13-acetate-induced tumor promotion in ICR mouse skin, possibly through suppression of superoxide generation in leukocytes.

    Akira Murakami;Wataru Kuki;Yasuo Takahashi;Hiroshi Yonei

  • Anti-tumor Promoting Activity of Bufadienolides from Kalanchoe pinnata and K. daigremontiana × butiflora

    Unang Supratman;Tomoyuki Fujita;Kohki Akiyama;Hideo Hayashi

  • Anti-tumor Promotion with Food Phytochemicals: A Strategy for Cancer Chemoprevention

    Akira Murakami;Hajime Ohigashi;Koichi Koshimizu

  • Bitter steroid glucosides, vernoniosides A1, A2, and A3, and related B1 from a possible medicinal plant, Vernonia amygdalina, used by wild chimpanzees.

    Mitsuo Jisaka;Hajime Ohigashi;Teruyoshi Takagaki;Hiroshi Nozaki

  • Citrus Auraptene Exerts Dose-dependent Chemopreventive Activity in Rat Large Bowel Tumorigenesis: The Inhibition Correlates with Suppression of Cell Proliferation and Lipid Peroxidation and with Induction of Phase II Drug-metabolizing Enzymes

    Takuji Tanaka;Kunihiro Kawabata;Mikio Kakumoto;Akira Hara

  • Identification of zerumbone in Zingiber zerumbet Smith as a potent inhibitor of 12-O-tetradecanoylphorbol-13-acetate-induced Epstein-Barr virus activation.

    Akira Murakami;Miyuki Takahashi;Suratwadee Jiwajinda;Koichi Koshimizu

  • Effects of selected food factors with chemopreventive properties on combined lipopolysaccharide- and interferon-γ-induced IκB degradation in RAW264.7 macrophages

    Akira Murakami;Kazuhiko Matsumoto;Koichi Koshimizu;Hajime Ohigashi

  • Glyceroglycolipids from Citrus hystrix, a Traditional Herb in Thailand, Potently Inhibit the Tumor-Promoting Activity of 12-O-Tetradecanoylphorbol 13-Acetate in Mouse Skin

    Akira Murakami;Yoshimasa Nakamura;Koichi Koshimizu;Hajime Ohigashi

  • Further investigation of the modifying effect of various chemopreventive agents on apoptosis and cell proliferation in human colon cancer cells

    Qiao Zheng;Yoshinobu Hirose;Naoki Yoshimi;Akira Murakami

  • Suppressive effects of citrus fruits on free radical generation and nobiletin, an anti-inflammatory polymethoxyflavonoid.

    Akira Murakami;Yoshimasa Nakamura;Yoshimi Ohto;Masamichi Yano

  • Chemoprevention of azoxymethane-induced rat aberrant crypt foci by dietary zerumbone isolated from Zingiber zerumbet.

    Takuji Tanaka;Masahito Shimizu;Hiroyuki Kohno;Shin-ichiro Yoshitani

  • Modifying effects of carotenoids on superoxide and nitric oxide generation from stimulated leukocytes.

    Akira Murakami;Mamiko Nakashima;Teruaki Koshiba;Takashi Maoka

  • Use of Vernonia amygdalina by wild chimpanzee : possible roles of its bitter and related constituents

    Koichi Koshimizu;Hajime Ohigashi;Michael A. Huffman

  • Toward the chemical ecology of medicinal plant use in chimpanzees: The case ofVernonia amygdalina, a plant used by wild chimpanzees possibly for parasite-related diseases.

    Hajime Ohigashi;Michael A. Huffman;Daisuke Izutsu;Koichi Koshimizu

  • Antitumoral and antimicrobial activities of bitter sesquiterpene lactones of Vernonia amygdalina, a possible medicinal plant used by wild chimpanzees.

    Mitsuo Jisaka;Hajime Ohigashi;Kazunori Takegawa;Michael A. Huffman

  • FA15, a hydrophobic derivative of ferulic acid, suppresses inflammatory responses and skin tumor promotion: comparison with ferulic acid

    Akira Murakami;Yoshimasa Nakamura;Koichi Koshimizu;Daisuke Takahashi

  • 1,1-Dimethylallylcoumarins potently supress both lipopolysaccharide- and interferon-γ-induced nitric oxide generation in mouse macrophage RAW 264.7 cells

    Akira Murakami;Guanxin Gao;Mitsuo Omura;Masamichi Yano

  • 1'-Acetoxychavicol acetate, a superoxide anion generation inhibitor, potently inhibits tumor promotion by 12-O-tetradecanoylphorbol-13-acetate in ICR mouse skin.

    Akira Murakami;Shin Ohura;Yoshimasa Nakamura;Koichi Koshimizu

  • Screening for in vitro anti-tumor promoting activities of edible plants from Thailand

    Akira Murakami;Suratwadee Jiwajinda;Koichi Koshimizu;Hajime Ohigashi

Frequent Co-Authors

Hajime Ohigashi
Hajime Ohigashi Kyoto University
Akira Murakami
Akira Murakami Kyoto University
Akio Iwashima
Akio Iwashima Kyoto Prefectural University of Medicine
Takuji Tanaka
Takuji Tanaka Gifu University
Toshio Fujita
Toshio Fujita Kyoto University
Michael A. Huffman
Michael A. Huffman Kyoto University
Yoshimasa Nakamura
Yoshimasa Nakamura Okayama University
Hideki Mori
Hideki Mori Gifu University
Hoyoku Nishino
Hoyoku Nishino Kyoto Prefectural University of Medicine
Makoto Suzuki
Makoto Suzuki Meijo University

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