Growing community of inventors

Ibaraki, Japan

Richar S Clark

Average Co-Inventor Count = 20.00

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 = 1

Richar S ClarkShinya Abe (1 patent)Richar S ClarkIsao Yamatsu (1 patent)Richar S ClarkHiroyuki Yoshimura (1 patent)Richar S ClarkShigeru Souda (1 patent)Richar S ClarkYoshimasa Machida (1 patent)Richar S ClarkShuhei Miyazawa (1 patent)Richar S ClarkNaoyuki Shimomura (1 patent)Richar S ClarkKouji Yamada (1 patent)Richar S ClarkMitsuaki Miyamoto (1 patent)Richar S ClarkTetsuya Kawahara (1 patent)Richar S ClarkKenzo Muramoto (1 patent)Richar S ClarkKoukichi Harada (1 patent)Richar S ClarkOsamu Asano (1 patent)Richar S ClarkKazuo Okano (1 patent)Richar S ClarkKouichi Katayama (1 patent)Richar S ClarkHiroshi Obaishi (1 patent)Richar S ClarkSatoshi Katayama (1 patent)Richar S ClarkHajime Tsunoda (1 patent)Richar S ClarkYoshimori Sakuma (1 patent)Richar S ClarkRichar S Clark (1 patent)Shinya AbeShinya Abe (134 patents)Isao YamatsuIsao Yamatsu (84 patents)Hiroyuki YoshimuraHiroyuki Yoshimura (44 patents)Shigeru SoudaShigeru Souda (43 patents)Yoshimasa MachidaYoshimasa Machida (42 patents)Shuhei MiyazawaShuhei Miyazawa (40 patents)Naoyuki ShimomuraNaoyuki Shimomura (31 patents)Kouji YamadaKouji Yamada (28 patents)Mitsuaki MiyamotoMitsuaki Miyamoto (27 patents)Tetsuya KawaharaTetsuya Kawahara (27 patents)Kenzo MuramotoKenzo Muramoto (27 patents)Koukichi HaradaKoukichi Harada (26 patents)Osamu AsanoOsamu Asano (25 patents)Kazuo OkanoKazuo Okano (25 patents)Kouichi KatayamaKouichi Katayama (21 patents)Hiroshi ObaishiHiroshi Obaishi (16 patents)Satoshi KatayamaSatoshi Katayama (13 patents)Hajime TsunodaHajime Tsunoda (11 patents)Yoshimori SakumaYoshimori Sakuma (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Eisai Company, Limited (1 from 677 patents)


1 patent:

1. 5304553 - 1,4-diazepine derivative and its pharmaceutical use

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as of
12/26/2025
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