Growing community of inventors

Tachikawa, Japan

Keiko Ooki

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 = 11

Keiko Ooki ↔ Yasuo Tanaka (1 patent)Keiko Ooki ↔ Hideaki Yamamoto (1 patent)Keiko Ooki ↔ Naohiro Goto (1 patent)Keiko Ooki ↔ Toru Takigawa (1 patent)Keiko OokiKeiko Ooki (1 patent)Yasuo TanakaYasuo Tanaka (82 patents)Hideaki YamamotoHideaki Yamamoto (55 patents)Naohiro GotoNaohiro Goto (14 patents)Toru TakigawaToru Takigawa (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (1 from 42,508 patents)

2. Nippon Hoso' Kyokai (1 from 374 patents)


1 patent:

1. 3941672 - Method of manufacturing light sensitive heterodiode

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12/30/2025
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