Growing community of inventors

Hitachi, Japan

Seiichi Toyoda

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 = 5

Seiichi Toyoda ↔ Yutaka Watanabe (1 patent)Seiichi Toyoda ↔ Koichi Kurosawa (1 patent)Seiichi Toyoda ↔ Yasumasa Tamai (1 patent)Seiichi Toyoda ↔ Hiroshi Tsujimura (1 patent)Seiichi Toyoda ↔ Masayuki Kurihara (1 patent)Seiichi ToyodaSeiichi Toyoda (1 patent)Yutaka WatanabeYutaka Watanabe (47 patents)Koichi KurosawaKoichi Kurosawa (15 patents)Yasumasa TamaiYasumasa Tamai (10 patents)Hiroshi TsujimuraHiroshi Tsujimura (3 patents)Masayuki KuriharaMasayuki Kurihara (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (1 from 42,485 patents)

2. Hitachi Kyowa Kogyo Co., Ltd. (1 from 3 patents)


1 patent:

1. 5494539 - Metal member quality improving method by spot welding

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12/7/2025
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