Growing community of inventors

Ikoma-gun, Japan

Hirohiko Sakamoto

Average Co-Inventor Count = 9.00

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 = 0

Hirohiko Sakamoto ↔ Kenichi Kashima (1 patent)Hirohiko Sakamoto ↔ Yasuhiko Sakamoto (1 patent)Hirohiko Sakamoto ↔ Shigetaka Takemura (1 patent)Hirohiko Sakamoto ↔ Hiroichi Nagai (1 patent)Hirohiko Sakamoto ↔ Yoshinobu Akimoto (1 patent)Hirohiko Sakamoto ↔ Takeshi Takeno (1 patent)Hirohiko Sakamoto ↔ Toshimi Sakurai (1 patent)Hirohiko Sakamoto ↔ Kayo Yokode (1 patent)Hirohiko SakamotoHirohiko Sakamoto (1 patent)Kenichi KashimaKenichi Kashima (5 patents)Yasuhiko SakamotoYasuhiko Sakamoto (4 patents)Shigetaka TakemuraShigetaka Takemura (2 patents)Hiroichi NagaiHiroichi Nagai (2 patents)Yoshinobu AkimotoYoshinobu Akimoto (1 patent)Takeshi TakenoTakeshi Takeno (1 patent)Toshimi SakuraiToshimi Sakurai (1 patent)Kayo YokodeKayo Yokode (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Shoji Kabushiki Kaisha (1 from 8 patents)


1 patent:

1. 5716950 - Diazacycloalkanealkylsulfonamide derivatives

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12/20/2025
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