Growing community of inventors

Toyonaka, Japan

Takumi Okamoto

Average Co-Inventor Count = 7.00

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 = 3

Takumi Okamoto ↔ Hisashi Takasugi (1 patent)Takumi Okamoto ↔ Kiyoshi Taniguchi (1 patent)Takumi Okamoto ↔ Kazunori Tsubaki (1 patent)Takumi Okamoto ↔ Minoru Sakurai (1 patent)Takumi Okamoto ↔ Yasuyo Tomishima (1 patent)Takumi Okamoto ↔ Norio Hashimoto (1 patent)Takumi OkamotoTakumi Okamoto (1 patent)Hisashi TakasugiHisashi Takasugi (137 patents)Kiyoshi TaniguchiKiyoshi Taniguchi (15 patents)Kazunori TsubakiKazunori Tsubaki (10 patents)Minoru SakuraiMinoru Sakurai (9 patents)Yasuyo TomishimaYasuyo Tomishima (6 patents)Norio HashimotoNorio Hashimoto (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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


1 patent:

1. 6391915 - Propanolamine derivatives

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1/7/2026
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