Growing community of inventors

Saitama, Japan

Masahiko Motsumoto

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 = 15

Masahiko Motsumoto ↔ Koichi Fukuo (1 patent)Masahiko Motsumoto ↔ Hiroshi Shirai (1 patent)Masahiko Motsumoto ↔ Toshiaki Hiro (1 patent)Masahiko Motsumoto ↔ Takashi Tatsumi (1 patent)Masahiko Motsumoto ↔ Hisashi Kanda (1 patent)Masahiko MotsumotoMasahiko Motsumoto (1 patent)Koichi FukuoKoichi Fukuo (17 patents)Hiroshi ShiraiHiroshi Shirai (7 patents)Toshiaki HiroToshiaki Hiro (4 patents)Takashi TatsumiTakashi Tatsumi (2 patents)Hisashi KandaHisashi Kanda (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Honda Giken Kogyo Kabushiki Kaisha (1 from 10,092 patents)


1 patent:

1. 4942854 - Valve operating device for use in internal combustion engine

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1/8/2026
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