Growing community of inventors

Nishinasunomachi, Japan

Hirohito Yamakawa

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 = 0

Hirohito Yamakawa ↔ Masato Ariga (1 patent)Hirohito Yamakawa ↔ Nobutake Kimura (1 patent)Hirohito Yamakawa ↔ Yoshio Nakagawa (1 patent)Hirohito Yamakawa ↔ Akio Shimizu (1 patent)Hirohito YamakawaHirohito Yamakawa (1 patent)Masato ArigaMasato Ariga (3 patents)Nobutake KimuraNobutake Kimura (2 patents)Yoshio NakagawaYoshio Nakagawa (1 patent)Akio ShimizuAkio Shimizu (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nisshin Flour Milling Co., Ltd. (1 from 200 patents)


1 patent:

1. 6040495 - Hairless mouse sensitive to helicobacter pylori

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12/11/2025
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