Growing community of inventors

Tochigi, Japan

Katsuji Ootuka

Average Co-Inventor Count = 8.00

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 = 26

Katsuji Ootuka ↔ Michio Yanadori (1 patent)Katsuji Ootuka ↔ Kichizaemon Okazaki (1 patent)Katsuji Ootuka ↔ Yasushige Kashiwabara (1 patent)Katsuji Ootuka ↔ Yoritsune Abe (1 patent)Katsuji Ootuka ↔ Toshitsugu Hara (1 patent)Katsuji Ootuka ↔ Hiroichi Oshiyama (1 patent)Katsuji Ootuka ↔ Eisaku Kato (1 patent)Katsuji OotukaKatsuji Ootuka (1 patent)Michio YanadoriMichio Yanadori (18 patents)Kichizaemon OkazakiKichizaemon Okazaki (6 patents)Yasushige KashiwabaraYasushige Kashiwabara (4 patents)Yoritsune AbeYoritsune Abe (3 patents)Toshitsugu HaraToshitsugu Hara (3 patents)Hiroichi OshiyamaHiroichi Oshiyama (1 patent)Eisaku KatoEisaku Kato (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (1 from 42,508 patents)


1 patent:

1. 4130997 - Refrigerator

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/4/2026
Loading…