Growing community of inventors

Shinnanyo, Japan

Yutaka Kawai

Average Co-Inventor Count = 4.29

ph-index = 3

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 = 26

Yutaka Kawai ↔ Takuji Okiyama (3 patents)Yutaka Kawai ↔ Takuji Hara (3 patents)Yutaka Kawai ↔ Toshihiko Takemoto (1 patent)Yutaka Kawai ↔ Ryoji Hirota (1 patent)Yutaka Kawai ↔ Keiji Osaki (1 patent)Yutaka Kawai ↔ Hisao Yasumura (1 patent)Yutaka KawaiYutaka Kawai (3 patents)Takuji OkiyamaTakuji Okiyama (4 patents)Takuji HaraTakuji Hara (3 patents)Toshihiko TakemotoToshihiko Takemoto (7 patents)Ryoji HirotaRyoji Hirota (7 patents)Keiji OsakiKeiji Osaki (1 patent)Hisao YasumuraHisao Yasumura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nisshin Steel Co., Ltd. (3 from 342 patents)


3 patents:

1. 5211771 - Soft magnetic alloy material

2. 5158624 - Soft-magnetic nickel-iron-chromium alloy

3. 5135588 - Soft-magnetic nickel-iron-chromium alloy for magnetic cores

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as of
12/18/2025
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