Growing community of inventors

Yokohama, Japan

Youichi Ishiguro

Average Co-Inventor Count = 7.00

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 = 20

Youichi Ishiguro ↔ Minoru Watanabe (1 patent)Youichi Ishiguro ↔ Masayuki Nishimura (1 patent)Youichi Ishiguro ↔ Masayuki Shigematsu (1 patent)Youichi Ishiguro ↔ Shigeru Hirai (1 patent)Youichi Ishiguro ↔ Kouji Nakazato (1 patent)Youichi Ishiguro ↔ Yasuji Hattori (1 patent)Youichi IshiguroYouichi Ishiguro (1 patent)Minoru WatanabeMinoru Watanabe (199 patents)Masayuki NishimuraMasayuki Nishimura (87 patents)Masayuki ShigematsuMasayuki Shigematsu (39 patents)Shigeru HiraiShigeru Hirai (9 patents)Kouji NakazatoKouji Nakazato (5 patents)Yasuji HattoriYasuji Hattori (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Electric Industries, Limited (1 from 10,273 patents)


1 patent:

1. 5381261 - Optical isolator

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/10/2026
Loading…