World's Best Scientists 2026 revealed!
Motomasa Kobayashi

Motomasa Kobayashi

D-Index & Metrics

Chemistry

D-Index
64
Citations
11330
World Ranking
8216
National Ranking
552

Motomasa Kobayashi 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 Motomasa Kobayashi 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: 281 publications — 58th percentile

58% of scientists in this discipline score the same or lower.

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

Motomasa Kobayashi 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 Motomasa Kobayashi 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: 64 D-Index — 56th percentile

56% of scientists in this discipline score the same or lower.

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

Overview

Motomasa Kobayashi is affiliated with Osaka University in Japan, where they conduct their research activities. Their work is situated within the academic environment of this institution, contributing to its scientific output and research community.

There is no publicly available detailed record of specific papers authored by Motomasa Kobayashi, nor is there information on frequent collaboration with other researchers. Likewise, no data on preferred publication venues or book publications is accessible. Consequently, there is no enumerated list of frequent co-authors or publishers related to their academic output.

Similarly, detailed information on the main fields of study, subfields, and the principal topics addressed in their research has not been provided. This limits the ability to outline particular research domains or thematic areas that characterize their scholarly contributions.

Information regarding awards or formal recognitions received by Motomasa Kobayashi is not available, which does not allow for commentary on distinctions or honors within their academic career.

Best Publications

  • Cortistatins A, B, C, and D, Anti-angiogenic Steroidal Alkaloids, from the Marine Sponge Corticium simplex

    Shunji Aoki;Yasuo Watanabe;Mami Sanagawa;Andi Setiawan

  • Marine natural products. XXXIV. Trisindoline, a new antibiotic indole trimer, produced by a bacterium of Vibrio sp. separated from the marine sponge Hyrtios altum.

    Motomasa Kobayashi;Shunji Aoki;Katsuhiko Gato;Katsuyoshi Matsunami

  • Altohyrtin A, a potent anti-tumor macrolide from the Okinawan marine sponge Hyrtios altum

    Motomasa Kobayashi;Shunji Aoki;Haruhiko Sakai;Kazuyoshi Kawazoe

  • Trichoderins, novel aminolipopeptides from a marine sponge-derived Trichoderma sp., are active against dormant mycobacteria.

    Patamaporn Pruksakorn;Masayoshi Arai;Naoyuki Kotoku;Catherine Vilchèze

  • Inhibition of in vitro tumor cell invasion by ginsenoside Rg3.

    Kiyoko Shinkai;Hitoshi Akedo;Mutsuko Mukai;Fumio Imamura

  • Absolute stereostructure of swinholide A, a potent cytotoxic macrolide from the Okinawan marine sponge Theonella swinhoei

    Isao Kitagawa;Motomasa Kobayashi;Taketo Katori;Megumi Yamashita

  • ARENASTATIN A, A POTENT CYTOTOXIC DEPSIPEPTIDE FROM THE OKINAWAN MARINE SPONGE DYSIDEA ARENARIA

    Motomasa Kobayashi;Shunji Aoki;Naoki Ohyabu;Michio Kurosu

  • Nociceptin/orphanin FQ-induced nociceptive responses through substance P release from peripheral nerve endings in mice

    Makoto Inoue;Motomasa Kobayashi;Shunji Kozaki;Andreas Zimmer

  • Marine Natural Products. XII. On the Chemical Constituents of the Okinawan Marine Sponge Hymeniacidon aldis

    Isao Kitagawa;Motomasa Kobayashi;Kaneyuki Kitanaka;Masaru Kido

  • Absolute stereostructures of altohyrtin A and its congeners, potent cytotoxic macrolides from the Okinawan marine sponge hyrtios altum

    Motomasa Kobayashi;Shunji Aoki;Isao Kitagawa

  • Structure-activity relationship and biological property of cortistatins, anti-angiogenic spongean steroidal alkaloids.

    Shunji Aoki;Yasuo Watanabe;Daiki Tanabe;Masayoshi Arai

  • Cytotoxic sesterterpenes, 6-epi-ophiobolin G and 6-epi-ophiobolin N, from marine derived fungus Emericella variecolor GF10

    Hong Wei;Takuya Itoh;Masahiro Kinoshita;Yasuhide Nakai

  • Callystatin A, a potent cytotoxic polyketide from the marine sponge, Callyspongia truncata

    Motomasa Kobayashi;Kouichi Higuchi;Nobutoshi Murakami;Hisashi Tajima

  • Cortistatins E, F, G, and H, four novel steroidal alkaloids from marine sponge Corticium simplex

    Yasuo Watanabe;Shunji Aoki;Daiki Tanabe;Andi Setiawan

  • Altohyrtins B and C and 5-desacetylaltohyrtin A, potent cytotoxic macrolide congeners of altohyrtin A, from the Okinawan marine sponge Hyrtios altum.

    Motomasa Kobayashi;Shunji Aoki;Haruhiko Sakai;Noriaki Kihara

  • Cortistatins J, K, L, novel abeo-9(10-19)-androstane-type steroidal alkaloids with isoquinoline unit, from marine sponge Corticium simplex

    Shunji Aoki;Yasuo Watanabe;Daiki Tanabe;Andi Setiawan

  • Melophlins A and B, Novel Tetramic Acids Reversing the Phenotype of ras-Transformed Cells, from the Marine Sponge Melophlus sarassinorum

    Shunji Aoki;Kouichi Higuchi;Ying Ye;Rachmaniar Satari

  • Structure of swinholide A, a potent cytotoxic macrolide from the Okinawan marine sponge

    Motomasa Kobayashi;Jun-ichi Tanaka;Taketo Katori;Miki Matsuura

  • Reversal of the resistance to STI571 in human chronic myelogenous leukemia K562 cells

    Motoi Mukai;Xiao Fang Che;Tatsuhiko Furukawa;Tomoyuki Sumizawa

  • Molecular conformation of swinholide A, a potent cytotoxic dimeric macrolide from the Okinawan marine sponge Theonella swinhoei: x-ray crystal structure of its diketone derivative

    Mitsunobu Doi;Toshimasa Ishida;Motomasa Kobayashi;Isao Kitagawa

Frequent Co-Authors

Isao Kitagawa
Isao Kitagawa Osaka University
Shunji Aoki
Shunji Aoki Hyogo University of Health Sciences
Yoshimasa Kyogoku
Yoshimasa Kyogoku Osaka University
Tatsuhiko Furukawa
Tatsuhiko Furukawa Kagoshima University
Tomoyuki Sumizawa
Tomoyuki Sumizawa Kagoshima University
Toshihiro Horii
Toshihiro Horii Osaka University
Zhe-Sheng Chen
Zhe-Sheng Chen St. John's University
Shinsaku Nakagawa
Shinsaku Nakagawa Osaka University
Shin-ichi Akiyama
Shin-ichi Akiyama Kagoshima University
Toshiyuki Sakai
Toshiyuki Sakai Kyoto Prefectural University of Medicine

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