Growing community of inventors

Ibaraki, Japan

Akira Katayama

Average Co-Inventor Count = 8.47

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 9

Akira KatayamaTeruo Kyoto Oku (1 patent)Akira KatayamaHiroshi Kayakiri (1 patent)Akira KatayamaMasakuni Okuhara (1 patent)Akira KatayamaShigehiro Takase (1 patent)Akira KatayamaNoritsugu Yamasaki (1 patent)Akira KatayamaMasahiro Nishikawa (1 patent)Akira KatayamaMasami Ezaki (1 patent)Akira KatayamaToshio Goto (1 patent)Akira KatayamaTakafumi Imoto (1 patent)Akira KatayamaHitoshi Sawada (1 patent)Akira KatayamaTakahiro Hiramura (1 patent)Akira KatayamaOsamu Onomura (1 patent)Akira KatayamaMiho Tanaka (1 patent)Akira KatayamaHideo Hirai (1 patent)Akira KatayamaHidenori Nakajima (1 patent)Akira KatayamaAkira Katayama (2 patents)Teruo Kyoto OkuTeruo Kyoto Oku (88 patents)Hiroshi KayakiriHiroshi Kayakiri (40 patents)Masakuni OkuharaMasakuni Okuhara (39 patents)Shigehiro TakaseShigehiro Takase (27 patents)Noritsugu YamasakiNoritsugu Yamasaki (24 patents)Masahiro NishikawaMasahiro Nishikawa (21 patents)Masami EzakiMasami Ezaki (19 patents)Toshio GotoToshio Goto (17 patents)Takafumi ImotoTakafumi Imoto (12 patents)Hitoshi SawadaHitoshi Sawada (12 patents)Takahiro HiramuraTakahiro Hiramura (10 patents)Osamu OnomuraOsamu Onomura (9 patents)Miho TanakaMiho Tanaka (7 patents)Hideo HiraiHideo Hirai (5 patents)Hidenori NakajimaHidenori Nakajima (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fujisawa Pharmaceutical Company, Ltd. (2 from 940 patents)


2 patents:

1. 6420409 - Benzimidazole derivatives

2. 4939241 - Amino acid derivatives of antitumor activity

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