World's Best Scientists 2026 revealed!
Masa Hamada

Masa Hamada

D-Index & Metrics

Biology and Biochemistry

D-Index
65
Citations
14151
World Ranking
9209
National Ranking
619

Masa Hamada publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Masa Hamada sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 396 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Masa Hamada D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Masa Hamada sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 65 D-Index — 55th percentile

55% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Masa Hamada is affiliated with Keio University in Japan. Their academic profile does not list recent papers, frequent co-authors, publication venues, or specific fields and subfields of study. There is also no recorded information about book publications or awards.

Due to the absence of detailed data on research topics, papers, or collaborations, it is not possible to provide a summary of their specific areas of expertise or contributions to academic literature. No information is currently available concerning their main fields of study or research themes.

This profile is based on the available public data and does not include further personal or professional details beyond the primary affiliation with Keio University.

Best Publications

  • BESTATIN, AN INHIBITOR OF AMINOPEPTIDASE B, PRODUCED BY ACTINOMYCETES

    Hamao Umezawa;Takaaki Aoyagi;Hiroyuki Suda;Masa Hamada

  • PEPSTATIN, A NEW PEPSIN INHIBITOR PRODUCED BY AGTINOMYGETES

    Hamao Umezawa;Takaaki Aoyagi;Hazime Morishima;Meiki Matsuzaki

  • Leupeptins, new protease inhibitors from Actinomycetes.

    Takaaki Aoyagi;Tomio Takeuchi;Akinori Matsuzaki;Kenji Kawamura

  • Isolation of a novel tyrosine kinase inhibitor, lavendustin A, from Streptomyces griseolavendus

    Toshihiko Onoda;Hironobu Iinuma;Yumi Sasaki;Masa Hamada

  • Studies on a new epidermal growth factor-receptor kinase inhibitor, erbstatin, produced by MH435-hF3.

    Hamao Umezawa;Masaya Imoto;Tsutomu Sawa;Kunio Isshiki

  • Amastatin, an inhibitor of aminopeptidase A, produced by actinomycetes

    Takaaki Aoyagi;Hiroyasu Tobe;Fukiko Kojima;Masa Hamada

  • New antitumor antibiotics aclacinomycins A and B.

    Toshikazu Oki;Yasue Matsuzawa;Akihiro Yoshimoto;Kenji Numata

  • A new antitumor antibiotic, spergualin: isolation and antitumor activity.

    Tomio Takeuchi;Hironobu Iinuma;Setsuko Kunimoto;Toru Masuda

  • Bacilysocin, a Novel Phospholipid Antibiotic Produced by Bacillus subtilis 168

    Norimasa Tamehiro;Yoshiko Okamoto-Hosoya;Susumu Okamoto;Makoto Ubukata

  • Diprotins A and B, inhibitors of dipeptidyl aminopeptidase IV, produced by bacteria.

    Hamao Umezawa;Takaaki Aoyagi;Keiji Ogawa;Hiroshi Naganawa

  • Caprazamycin B, a novel anti-tuberculosis antibiotic, from Streptomyces sp.

    Masayuki Igarashi;Naoko Nakagawa;Norio Doi;Seiko Hattori

  • VALILACTONE, AN INHIBITOR OF ESTERASE, PRODUCED BY ACTINOMYCETES

    Mikio Kitahara;Masaaki Asano;Hiroshi Naganawa;Kenji Maeda

  • ANTIPAIN, A NEW PROTEASE INHIBITOR ISOLATED FROM AGTINOMYCETES

    Hiroyuki Suda;Takaaki Aoyagi;Masa Hamada;Tomio Takeuchi

  • GHYMOSTATIN, A NEW GHYMOTRYPSIN INHIBITOR PRODUCED BY ACTINOMYGETES

    Hamao Umezawa;Takaaki Aoyagi;Hazime Morishima;Setsuko Kunimoto

  • NEW ANTIFUNGAL ANTIBIOTICS, BENANOMICINS A AND B FROM AN ACTINOMYCETE

    Tomio Takeuchi;Takeshi Hara;Hiroshi Naganawa;Mayumi Okada

  • Migrastatin, a new inhibitor of tumor cell migration from Streptomyces sp. MK929-43F1. Taxonomy, fermentation, isolation and biological activities.

    Koichi Nakae;Yuya Yoshimoto;Tsutomu Sawa;Yoshiko Homma

  • Nagstatin, a new inhibitor of N-acetyl-beta-D-glucosaminidase, produced by Streptomyces amakusaensis MG846-fF3. Taxonomy, production, isolation, physico-chemical properties and biological activities.

    Takaaki Aoyagi;Hiroyuki Suda;Kazumichi Uotani;Fukiko Kojima

  • A new antibiotic, negamycin.

    Masa Hamada;Tomio Tadeuchi;Shinichi Kondo;Yoko Ikeda

  • Negamycin restores dystrophin expression in skeletal and cardiac muscles of mdx mice.

    Masayuki Arakawa;Masataka Shiozuka;Yuki Nakayama;Takahiko Hara

  • Mannostatins A and B: new inhibitors of alpha-D-mannosidase, produced by Streptoverticillium verticillus var. quintum ME3-AG3: taxonomy, production, isolation, physico-chemical properties and biological activities.

    Takaaki Aoyagi;Takuzo Yamamoto;Katsuhisa Kojiri;Hajime Morishima

Frequent Co-Authors

Tomio Takeuchi
Tomio Takeuchi Keio University
Hiroshi Naganawa
Hiroshi Naganawa Keio University
Hamao Umezawa
Hamao Umezawa National Institutes of Health
Kazuo Umezawa
Kazuo Umezawa Aichi Medical University
Toshikazu Oki
Toshikazu Oki Toyama Prefectural University
Yoichi Iitaka
Yoichi Iitaka University of Tokyo
Toshiharu Nagatsu
Toshiharu Nagatsu Fujita Health University
Toshihiro Hashimoto
Toshihiro Hashimoto Tokushima Bunri University
Hiroyasu Esumi
Hiroyasu Esumi Tokyo University of Science
Toshiyuki Tanaka
Toshiyuki Tanaka Hyogo University of Health Sciences

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