World's Best Scientists 2026 revealed!
Jun'ichi Kobayashi

Jun'ichi Kobayashi

D-Index & Metrics

Chemistry

D-Index
88
Citations
28209
World Ranking
2281
National Ranking
126

Jun'ichi 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 Jun'ichi 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: 674 publications — 95th percentile

95% of scientists in this discipline score the same or lower.

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

Jun'ichi 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 Jun'ichi 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: 88 D-Index — 88th percentile

88% of scientists in this discipline score the same or lower.

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

Overview

Jun'ichi Kobayashi is affiliated with Hokkaido University in Japan and has contributed to research in several intersecting scientific fields. Their work spans Medicine, Biochemistry, Genetics and Molecular Biology, and Neuroscience. Within these domains, Kobayashi focuses on subfields including Biotechnology, Organic Chemistry, Sensory Systems, Urology, and Pharmacology.

The main topics addressed in Kobayashi's research include Marine Sponges and Natural Products, Ion Channels and Receptors, Urinary Bladder and Prostate Research, Synthesis and Catalytic Reactions, Microbial Natural Products and Biosynthesis, Phytochemicals and Antioxidant Activities, as well as Microencapsulation and Drying Processes.

Kobayashi has coauthored multiple papers with researchers such as Yoshikazu Fujimori, Takaaki Kubota, Shin-ichiro Kurimoto, Osamu Nakanishi, and Akane Matsuzawa, indicating collaborative involvement across various research projects.

Frequent publication venues for Kobayashi's work include:

  • Neurourology and Urodynamics
  • The Alkaloids. Chemistry and biology
  • Journal of Pharmacology and Experimental Therapeutics
  • European Journal of Pharmacology
  • Marine Drugs

Recent papers authored or coauthored by Kobayashi focus on biochemical and pharmacological studies, with specific emphasis on alkaloids and transient receptor potential channels. Key papers include:

  • "The manzamine alkaloids," 2020, The Alkaloids. Chemistry and biology
  • "KPR-5714, a Novel Transient Receptor Potential Melastatin 8 Antagonist, Improves Overactive Bladder via Inhibition of Bladder Afferent Hyperactivity in Rats," 2020, Journal of Pharmacology and Experimental Therapeutics
  • "Agesasines A and B, Bromopyrrole Alkaloids from Marine Sponges Agelas spp," 2020, Marine Drugs
  • "Efficacy of the combination of KPR-5714, a novel transient receptor potential melastatin 8 (TRPM8) antagonist, and β3-adrenoceptor agonist or anticholinergic agent on bladder dysfunction in rats with bladder overactivity," 2021, European Journal of Pharmacology
  • "Identification of N-acyl-N-indanyl-α-phenylglycinamides as selective TRPM8 antagonists designed to mitigate the risk of adverse effects," 2020, Bioorganic & Medicinal Chemistry

Best Publications

  • Bioactive metabolites of symbiotic marine microorganisms

    Junichi. Kobayashi;Masami. Ishibashi

  • Eudistomins A-Q, β-carbolines from the antiviral Caribbean tunicate Eudistoma olivaceum

    Kenneth L. Rinehart;Junichi Kobayashi;Gary C. Harbour;Jeremy Gilmore

  • Amphidinolides, bioactive macrolides from symbiotic marine dinoflagellates

    Jun'ichi Kobayashi;Masashi Tsuda

  • The Daphniphyllum alkaloids

    Jun'ichi Kobayashi;Takaaki Kubota

  • Eudistomins C, E, K, and L, potent antiviral compounds containing a novel oxathiazepine ring from the Caribbean tunicate Eudistoma olivaceum

    Kenneth L. Rinehart;Junichi Kobayashi;Gary C. Harbour;Robert G Hughes

  • Purealidins B and C, new bromotyrosine alkaloids from the okinawan marine sponge psammaplysilla purea

    Jun'ichi Kobayashi;Masashi Tsuda;Kaori Agemi;Hideyuki Shigemori

  • Bioactive macrolides and polyketides from marine dinoflagellates of the genus Amphidinium

    Jun'ichi Kobayashi;Takaaki Kubota

  • Alteramide A, a new tetracyclic alkaloid from a bacterium Alteromonas sp. associated with the marine sponge Halichondria okadai

    Hideyuki Shigemori;Myung Ae Bae;Kazunaga Yazawa;Takuma Sasaki

  • Absolute stereochemistry of citrinadins a and B from marine-derived fungus.

    Takao Mugishima;Masashi Tsuda;Yuu Kasai;Haruaki Ishiyama

  • Separation of mycosporine-like amino acids in marine organisms using reversed-phase high-performance liquid chromatography

    Hideshi Nakamura;Jun'ichi Kobayashi;Yoshimasa Hirata

  • NAKADOMARIN A, A NOVEL HEXACYCLIC MANZAMINE-RELATED ALKALOID FROM AMPHIMEDON SPONGE

    Jun'ichi Kobayashi;Daisuke Watanabe;and Naoko Kawasaki;Masashi Tsuda

  • Ircinals A and B from the Okinawan marine sponge Ircinia sp.: plausible biogenetic precursors of manzamine alkaloids

    Kazuhiko Kondo;Hideyuki Shigemori;Yumiko Kikuchi;Masami Ishibashi

  • Keramamine-A and -B, novel antimicrobial alkaloids from the Okinawan marine sponge Pellina sp.

    Hideshi Nakamura;Shongzhi Deng;Jun'ichi Kobayashi;Yasushi Ohizumi

  • Eudistomins A, D, G, H, I, J, M, N, O, P, and Q, bromo, hydroxy, pyrrolyl and iminoazepino .beta.-carbolines from the antiviral Caribbean tunicate Eudistoma olivaceum

    Junichi Kobayashi;Gary C. Harbour;Jeremy Gilmore;Kenneth L. Rinehart

  • Amphidinolides and its related macrolides from marine dinoflagellates.

    Jun'ichi Kobayashi

  • Isolation and structure of aaptamine a novel heteroaromatic substance possessing α-blocking activity from the sea sponge Aaptos aaptos

    Hideshi Nakamura;Jun'ichi Kobayashi;Yasushi Ohizumi;Yoshimasa Hirata

  • Citrinadin A, a novel pentacyclic alkaloid from marine-derived fungus Penicillium citrinum.

    Masashi Tsuda;Yuu Kasai;Kazusei Komatsu;Teruo Sone

  • Celogentin K, a new cyclic peptide from the seeds of Celosia argentea and X-ray structure of moroidin

    Hayato Suzuki;Hiroshi Morita;Motoo Shiro;Jun'ichi Kobayashi

  • MANZACIDINS A-C, NOVEL TETRAHYDROPYRIMIDINE ALKALOIDS FROM THE OKINAWAN MARINE SPONGE HYMENIACIDON SP.

    Junichi Kobayashi;Fuyuko Kanda;Masami Ishibashi;Hideyuki Shigemori

  • A novel method of measuring intra-abdominal fat volume using helical computed tomography.

    J Kobayashi;N Tadokoro;M Watanabe;M Shinomiya

  • Eudistomidins B, C, and D: novel antileukemic alkaloids from the Okinawan marine tunicate Eudistoma glaucus

    Junichi Kobayashi;Jie Fei Cheng;Tomihisa Ohta;Shigeo Nozoe

Frequent Co-Authors

Masashi Tsuda
Masashi Tsuda Kōchi University
Masami Ishibashi
Masami Ishibashi Chiba University
Hideyuki Shigemori
Hideyuki Shigemori University of Tsukuba
Hiroshi Morita
Hiroshi Morita Hoshi University
Yasushi Ohizumi
Yasushi Ohizumi Tohoku University
Yuzuru Mikami
Yuzuru Mikami Chiba University
Hideshi Nakamura
Hideshi Nakamura Nagoya University
Yoshiki Kashiwada
Yoshiki Kashiwada University of Tokushima
Jun Kawabata
Jun Kawabata Hokkaido University
Yoshimasa Hirata
Yoshimasa Hirata Meijo University

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