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Yoshiki Kashiwada

Yoshiki Kashiwada

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 54 12569 11309 948 867 248 10964

Yoshiki Kashiwada publications per year

The chart shows the history of publications by Yoshiki Kashiwada between 1980 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Yoshiki Kashiwada published across 46 years, from 1980 to 2025, averaging 5.8 papers a year. Output peaked at 23 publications in 2016. 8 of the 269 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1980 to 2025. Vertical axis: number of publications, 0 to 23. Peak 23 publications in 2016. 1980: 1 publication 1981: 2 publications 1982: 2 publications 1983: 0 publications 1984: 3 publications 1985: 1 publication 1986: 3 publications 1987: 0 publications 1988: 3 publications 1989: 2 publications 1990: 5 publications 1991: 0 publications 1992: 9 publications 1993: 6 publications 1994: 12 publications 1995: 8 publications 1996: 4 publications 1997: 10 publications 1998: 3 publications 1999: 3 publications 2000: 5 publications 2001: 9 publications 2002: 2 publications 2003: 0 publications 2004: 4 publications 2005: 5 publications 2006: 3 publications 2007: 5 publications 2008: 10 publications 2009: 9 publications 2010: 16 publications 2011: 9 publications 2012: 13 publications 2013: 3 publications 2014: 8 publications 2015: 17 publications 2016: 23 publications 2017: 5 publications 2018: 7 publications 2019: 7 publications 2020: 10 publications 2021: 7 publications 2022: 6 publications 2023: 1 publication 2024: 4 publications 2025: 4 publications
1980 2025

269 publications in total across all disciplines

View publications per year as a table
Yoshiki Kashiwada: publications per year, 1980 to 2025
Year Publications
1980 1
1981 2
1982 2
1983 0
1984 3
1985 1
1986 3
1987 0
1988 3
1989 2
1990 5
1991 0
1992 9
1993 6
1994 12
1995 8
1996 4
1997 10
1998 3
1999 3
2000 5
2001 9
2002 2
2003 0
2004 4
2005 5
2006 3
2007 5
2008 10
2009 9
2010 16
2011 9
2012 13
2013 3
2014 8
2015 17
2016 23
2017 5
2018 7
2019 7
2020 10
2021 7
2022 6
2023 1
2024 4
2025 4
Total 269
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Yoshiki Kashiwada publications per year - data summary

  • Yoshiki Kashiwada, a Chemistry scholar from University of Tokushima, has 269 publications recorded across 46 years, from 1980 to 2025.
  • The oldest publication on record dates to 1980 and the most recent to 2025.
  • The most productive year is 2016, with 23 publications.
  • The least productive years with any output are 1980, 1985 and 2023, with 1 publication each.
  • 4 of the 46 years in the span carry no publications at all (1983, 1987, 1991 and 2003).
  • The rate of publication averages 5.8 papers per year over the whole span, or 6.4 per year counting only the 42 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 22 publications, 8% of the career total.
  • Split into equal eras - 1980-1995: 57 publications (3.6 per year); 1996-2011: 97 publications (6.1 per year); 2012-2025: 115 publications (8.2 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Yoshiki Kashiwada 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 Yoshiki Kashiwada 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, 241–260 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: 248 publications — 49th percentile

49% 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 1,100 248
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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Yoshiki Kashiwada publication distribution in Chemistry in 2026 - data summary

  • The chart plots the publication count of all 17,934 Chemistry scientists ranked by Research.com in 2026, grouped into 63 ranges running from 61–80 to 1,295+ publications.
  • Yoshiki Kashiwada, a Chemistry scholar from University of Tokushima, records 248 publications - the 49th percentile of the discipline.
  • 49% of ranked Chemistry scientists score the same or lower than Yoshiki Kashiwada, and about 51% score higher.
  • The median of the discipline falls in the 241–260 publications range, and Yoshiki Kashiwada falls inside that same range.
  • The most crowded range is 161–180 publications, holding 1,350 scientists (8% of the field).
  • 77% of the field sits in the lowest quarter of the value range (up to 361–380 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 1,295 publications or more, 100 scientists in all (<1% of the field).

Yoshiki Kashiwada 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 Yoshiki Kashiwada 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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Yoshiki Kashiwada D-index placement in Chemistry in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 17,934 Chemistry scientists ranked by Research.com in 2026, grouped into 61 ranges running from 40–41 to 159+ D-Index.
  • Yoshiki Kashiwada, a Chemistry scholar from University of Tokushima, records 54 D-Index - the 31st percentile of the discipline.
  • 31% of ranked Chemistry scientists score the same or lower than Yoshiki Kashiwada, and about 69% score higher.
  • The median of the discipline falls in the 62–63 D-Index range, and Yoshiki Kashiwada ranks below the median.
  • The most crowded range is 56–57 D-Index, holding 1,051 scientists (6% of the field).
  • 70% of the field sits in the lowest quarter of the value range (up to 70–71 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 159 D-Index or more, 98 scientists in all (<1% of the field).

Overview

Yoshiki Kashiwada is affiliated with the University of Tokushima in Japan and conducts research predominantly in the intersection of biochemistry, genetics, molecular biology, medicine, and agricultural and biological sciences.

Their research concentrates on molecular biology and plant science, with significant activity also in organic chemistry, pharmacology, and cancer research. Key themes in their work include natural product bioactivities and synthesis, phytochemistry and biological activities, natural compound pharmacology studies, phytochemical compounds' biological activities, the synthesis of organic compounds, sesquiterpenes and Asteraceae studies, and traditional Chinese medicine analysis.

Yoshiki Kashiwada has contributed to various scientific journals, with frequent publications appearing in:

  • Journal of Natural Medicines
  • UNC Libraries
  • Fitoterapia
  • Phytochemistry
  • Journal of Natural Products

Some recent papers include:

  • Phytochemical studies on traditional herbal medicines based on the ethnopharmacological information obtained by field studies, 2021, Journal of Natural Medicines
  • Characteristic metabolites of Hypericum plants: their chemical structures and biological activities, 2021, Journal of Natural Medicines
  • Sarcaglabrin A, a conjugate of C15 and C10 terpenes from the aerial parts of Sarcandra glabra, 2020, Tetrahedron Letters
  • C28 Terpenoids from Lamiaceous Plant Perovskia scrophulariifolia: Their Structures and Anti-neuroinflammatory Activity, 2020, Organic Letters
  • Linaburiosides A−D, acylated iridoid glucosides from Linaria buriatica, 2020, Phytochemistry

Yoshiki Kashiwada collaborates frequently with several coauthors, including:

  • Naonobu Tanaka
  • Daisuke Tsuji
  • Kohji Itoh
  • Yuki Yoshino
  • Kuo-Hsiung Lee

Best Publications

  • Anti-AIDS agents, 11. Betulinic acid and platanic acid as anti-HIV principles from Syzigium claviflorum, and the anti-HIV activity of structurally related triterpenoids.

    T. Fujioka;Y. Kashiwada;R. E. Kilkuskie;L. M. Cosentino

  • Anti-HIV benzylisoquinoline alkaloids and flavonoids from the leaves of Nelumbo nucifera, and structure-activity correlations with related alkaloids.

    Yoshiki Kashiwada;Akihiro Aoshima;Yasumasa Ikeshiro;Yuh Pan Chen

  • Anti-AIDS agents. 30. Anti-HIV activity of oleanolic acid, pomolic acid, and structurally related triterpenoids.

    Y Kashiwada;H K Wang;T Nagao;S Kitanaka

  • Betulinic acid and dihydrobetulinic acid derivatives as potent anti-HIV agents

    Y. Kashiwada;F. Hashimoto;L. M. Cosentino;Chin-Ho Chen

  • Anti-AIDS agents, 2: Inhibitory effects of tannins on HIV reverse transcriptase and HIV replication in H9 lymphocyte cells.

    Gen Ichiro Nonaka;Itsuo Nishioka;Makoto Nishizawa;Takashi Yamagishi

  • Antitumor Agents, 129. Tannins and Related Compounds as Selective Cytotoxic Agents

    Yoshiki Kashiwada;Gen Ichiro Nonaka;Itsuo Nishioka;Jer Jang Chang

  • Isolation of rhododaurichromanic acid B and the anti-HIV principles rhododaurichromanic acid A and rhododaurichromenic acid from Rhododendron dauricum

    Yoshiki Kashiwada;Kimihisa Yamazaki;Yasumasa Ikeshiro;Takashi Yamagishi

  • Anti-AIDS agents. 34. Synthesis and structure-activity relationships of betulin derivatives as anti-HIV agents.

    Sun Ic;Wang Hk;Kashiwada Y;Shen Jk

  • Anti-AIDS agents 38. Anti-HIV activity of 3-O-acyl ursolic acid derivatives

    Y. Kashiwada;T. Nagao;A. Hashimoto;Y. Ikeshiro

  • Anti-AIDS agents-XXVI. Structure-activity correlations of gomisin-G-related anti-HIV lignans from Kadsura interior and of related synthetic analogues

    Dao Feng Chen;Shun Xiang Zhang;Lan Xie;Jing Xi Xie

  • Anti-Human Immunodeficiency Virus Activity of YK-FH312 (a Betulinic Acid Derivative), a Novel Compound Blocking Viral Maturation

    Taisei Kanamoto;Yoshiki Kashiwada;Kenji Kanbara;Kazuyo Gotoh

  • Antitumor agents. 203. Carbazole alkaloid murrayaquinone A and related synthetic carbazolequinones as cytotoxic agents.

    Masataka Itoigawa;Yoshiki Kashiwada;Chihiro Ito;Hiroshi Furukawa

  • Anti-AIDS Agents, 18. Sodium and Potassium Salts of Caffeic Acid Tetramers from Arnebia euchroma as Anti-HIV Agents

    Y. Kashiwada;M. Nishizawa;T. Yamagishi;T. Tanaka

  • Anti-AIDS agents--XXVII. Synthesis and anti-HIV activity of betulinic acid and dihydrobetulinic acid derivatives.

    Fumio Hashimoto;Fumio Hashimoto;Yoshiki Kashiwada;L. Mark Cosentino;Chin Ho Chen

  • Anti-AIDS agents 69. Moronic acid and other triterpene derivatives as novel potent anti-HIV agents.

    Donglei Yu;Yojiro Sakurai;Chin Ho Chen;Fang Rong Chang

  • Anti-AIDS Agents. 15. Synthesis and Anti-HIV Activity of Dihydroseselins and Related Analogs

    Li Huang;Y. Kashiwada;L. M. Cosentino;Sharon Fan

  • Tannins as Potent Inhibitors of DNA Topoisomerase II In Vitro

    Yoshiki Kashiwada;Gen-Ichiro Nonaka;Itsuo Nishioka;Kenneth Jiann-Hung Lee;Kenneth Jiann-Hung Lee

  • Absorption and metabolism of delphinidin 3-O-β-d-glucopyranoside in rats

    Takashi Ichiyanagi;M.Mamunur Rahman;Yoshiki Kashiwada;Yasumasa Ikeshiro

  • Anti-AIDS agents 49. Synthesis, anti-HIV, and anti-fusion activities of IC9564 analogues based on betulinic acid

    I-Chen Sun;Chin-Ho Chen;Yoshiki Kashiwada;Jiu-Hong Wu

  • Studies on rhubarb (rhei rhizoma). VI. Isolation and characterization of stilbenes.

    Yoshiki Kashiwada;Genichiro Nonaka;Itsuo Nishioka

Frequent Co-Authors

Yoshihisa Takaishi
Yoshihisa Takaishi University of Tokushima
Kuo Hsiung Lee
Kuo Hsiung Lee University of Minnesota
Jun'ichi Kobayashi
Jun'ichi Kobayashi Hokkaido University
Han-Dong Sun
Han-Dong Sun Chinese Academy of Sciences
Itsuo Nishioka
Itsuo Nishioka Kyushu University
Chin Ho Chen
Chin Ho Chen Duke University
Susan L. Morris-Natschke
Susan L. Morris-Natschke University of North Carolina at Chapel Hill
Yung-Chi Cheng
Yung-Chi Cheng Yale University
Kenneth F. Bastow
Kenneth F. Bastow University of North Carolina at Chapel Hill
Gen-ichiro Nonaka
Gen-ichiro Nonaka Kyushu University

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