Growing community of inventors

Tochigi, Japan

Keiji Otsuka

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 = 2

Keiji Otsuka ↔ Akira Goto (1 patent)Keiji Otsuka ↔ Hiroki Fujiuchi (1 patent)Keiji Otsuka ↔ Toshiyuki Horimukai (1 patent)Keiji Otsuka ↔ Sumitomo Watanabe (1 patent)Keiji Otsuka ↔ Takahiro Morita (1 patent)Keiji Otsuka ↔ Hiroki Kuwahara (1 patent)Keiji Otsuka ↔ Toru Kumagai (1 patent)Keiji OtsukaKeiji Otsuka (1 patent)Akira GotoAkira Goto (12 patents)Hiroki FujiuchiHiroki Fujiuchi (6 patents)Toshiyuki HorimukaiToshiyuki Horimukai (1 patent)Sumitomo WatanabeSumitomo Watanabe (4 patents)Takahiro MoritaTakahiro Morita (4 patents)Hiroki KuwaharaHiroki Kuwahara (1 patent)Toru KumagaiToru Kumagai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Honda Motor Co., Ltd. (1 from 21,963 patents)


1 patent:

1. 10077081 - Vehicle roof structure and method for manufacturing vehicle roof structure

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1/8/2026
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