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Hachinohe, Japan

Keizo Yamada

Average Co-Inventor Count = 4.00

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 = 1

Keizo Yamada ↔ Takashi Yamauchi (1 patent)Keizo Yamada ↔ Shigeaki Maruhashi (1 patent)Keizo Yamada ↔ Shinkichi Koike (1 patent)Keizo YamadaKeizo Yamada (1 patent)Takashi YamauchiTakashi Yamauchi (18 patents)Shigeaki MaruhashiShigeaki Maruhashi (11 patents)Shinkichi KoikeShinkichi Koike (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nisshin Steel Co., Ltd. (1 from 342 patents)

2. Pacific Metals Co., Ltd. (1 from 9 patents)


1 patent:

1. 4525209 - Process for producing low P chromium-containing steel

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12/8/2025
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