Growing community of inventors

Tokyo, Japan

Ryouichi Sasaoka

Average Co-Inventor Count = 2.50

ph-index = 3

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 = 55

Ryouichi Sasaoka ↔ Kennosuke Chujo (3 patents)Ryouichi Sasaoka ↔ Yuji Nagura (1 patent)Ryouichi Sasaoka ↔ Mamoru Ueda (1 patent)Ryouichi Sasaoka ↔ Eisuke Nakao (1 patent)Ryouichi SasaokaRyouichi Sasaoka (3 patents)Kennosuke ChujoKennosuke Chujo (6 patents)Yuji NaguraYuji Nagura (4 patents)Mamoru UedaMamoru Ueda (3 patents)Eisuke NakaoEisuke Nakao (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kowa Company Limited (3 from 591 patents)


3 patents:

1. D594493 - Telescope

2. D594494 - Telescope

3. D561735 - Digital audio player

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as of
12/19/2025
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