Growing community of inventors

Kakuda, Japan

Tatsuji Hasegawa

Average Co-Inventor Count = 5.00

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

Tatsuji HasegawaToshikatsu Katagiri (1 patent)Tatsuji HasegawaYoshio Kusano (1 patent)Tatsuji HasegawaMasakazu Murai (1 patent)Tatsuji HasegawaJunichi Sugamori (1 patent)Tatsuji HasegawaTatsuji Hasegawa (1 patent)Toshikatsu KatagiriToshikatsu Katagiri (33 patents)Yoshio KusanoYoshio Kusano (23 patents)Masakazu MuraiMasakazu Murai (8 patents)Junichi SugamoriJunichi Sugamori (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Keihin Corporation (1 from 447 patents)


1 patent:

1. 7302969 - Valve device for use with fuel cells

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12/10/2025
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