Growing community of inventors

Toyohashi, Japan

Kou Otsuka

Average Co-Inventor Count = 6.00

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

Kou Otsuka ↔ Toshihiko Igashira (1 patent)Kou Otsuka ↔ Yasuyuki Sakakibara (1 patent)Kou Otsuka ↔ Hiroshi Yorita (1 patent)Kou Otsuka ↔ Moriyasu Gotoh (1 patent)Kou Otsuka ↔ Shigeiku Enomoto (1 patent)Kou OtsukaKou Otsuka (1 patent)Toshihiko IgashiraToshihiko Igashira (91 patents)Yasuyuki SakakibaraYasuyuki Sakakibara (48 patents)Hiroshi YoritaHiroshi Yorita (24 patents)Moriyasu GotohMoriyasu Gotoh (12 patents)Shigeiku EnomotoShigeiku Enomoto (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Soken, Inc. (1 from 1,600 patents)


1 patent:

1. 5421710 - Fuel injection apparatus

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as of
1/7/2026
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