Growing community of inventors

Kurashiki, Japan

Koichi Hirase

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

Koichi Hirase ↔ Koichi Yamane (1 patent)Koichi Hirase ↔ Kazuo Kita (1 patent)Koichi Hirase ↔ Toshio Iwasaki (1 patent)Koichi Hirase ↔ Koichi Ishii (1 patent)Koichi Hirase ↔ Tadayoshi Takeno (1 patent)Koichi HiraseKoichi Hirase (1 patent)Koichi YamaneKoichi Yamane (3 patents)Kazuo KitaKazuo Kita (3 patents)Toshio IwasakiToshio Iwasaki (2 patents)Koichi IshiiKoichi Ishii (1 patent)Tadayoshi TakenoTadayoshi Takeno (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Corporation (1 from 3,608 patents)

2. Kawasaki Steel Corporation (1 from 1,256 patents)


1 patent:

1. 4595519 - Metal cleaning compositions

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1/22/2026
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