Growing community of inventors

Tokyo, Japan

Yasunobu Kawahata

Average Co-Inventor Count = 3.00

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 = 2

Yasunobu Kawahata ↔ Masayuki Ohmori (1 patent)Yasunobu Kawahata ↔ Satoshi Ohsuga (1 patent)Yasunobu KawahataYasunobu Kawahata (1 patent)Masayuki OhmoriMasayuki Ohmori (5 patents)Satoshi OhsugaSatoshi Ohsuga (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (1 from 58,130 patents)


1 patent:

1. 4746973 - Focus block for a three-tube color video projector

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as of
12/19/2025
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