Growing community of inventors

Kitakyushu, Japan

Ryoichi Hisatomi

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 = 3

Ryoichi Hisatomi ↔ Mikio Yamanaka (1 patent)Ryoichi Hisatomi ↔ Keiichi Ohmura (1 patent)Ryoichi Hisatomi ↔ Hiroyuki Tanaka (1 patent)Ryoichi Hisatomi ↔ Masuhiro Fukaya (1 patent)Ryoichi Hisatomi ↔ Akira Imamura (1 patent)Ryoichi HisatomiRyoichi Hisatomi (1 patent)Mikio YamanakaMikio Yamanaka (22 patents)Keiichi OhmuraKeiichi Ohmura (9 patents)Hiroyuki TanakaHiroyuki Tanaka (7 patents)Masuhiro FukayaMasuhiro Fukaya (4 patents)Akira ImamuraAkira Imamura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Steel Corporation (1 from 3,568 patents)


1 patent:

1. 5405460 - Fe-Cr-Al alloy steel sheet and process for producing the same

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as of
1/7/2026
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