Growing community of inventors

Shiga, Japan

Yoshihisa Ishikawa

Average Co-Inventor Count = 3.43

ph-index = 2

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 = 14

Yoshihisa Ishikawa ↔ Toshimitsu Fujiwara (2 patents)Yoshihisa Ishikawa ↔ Takeshi Miyasaka (2 patents)Yoshihisa Ishikawa ↔ Yohei Tsukanaka (2 patents)Yoshihisa Ishikawa ↔ Atsushi Sawada (1 patent)Yoshihisa Ishikawa ↔ Kosuke Sanari (1 patent)Yoshihisa Ishikawa ↔ Tomonobu Kato (1 patent)Yoshihisa Ishikawa ↔ Isao Kobayashi (1 patent)Yoshihisa IshikawaYoshihisa Ishikawa (4 patents)Toshimitsu FujiwaraToshimitsu Fujiwara (14 patents)Takeshi MiyasakaTakeshi Miyasaka (13 patents)Yohei TsukanakaYohei Tsukanaka (7 patents)Atsushi SawadaAtsushi Sawada (4 patents)Kosuke SanariKosuke Sanari (4 patents)Tomonobu KatoTomonobu Kato (4 patents)Isao KobayashiIsao Kobayashi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Omron Corporation (4 from 4,114 patents)


4 patents:

1. D766190 - Relay socket

2. D728488 - Relay socket

3. D621992 - Light guiding plate

4. D583504 - Light guiding member

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as of
12/5/2025
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