Growing community of inventors

Kitakyushu, Japan

Hitoshi Okubo

Average Co-Inventor Count = 5.00

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 = 17

Hitoshi Okubo ↔ Yoshun Yamamoto (1 patent)Hitoshi Okubo ↔ Yutaka Yasunaga (1 patent)Hitoshi Okubo ↔ Yutaka Watanabe (1 patent)Hitoshi Okubo ↔ Eizo Uchiyama (1 patent)Hitoshi OkuboHitoshi Okubo (1 patent)Yoshun YamamotoYoshun Yamamoto (4 patents)Yutaka YasunagaYutaka Yasunaga (1 patent)Yutaka WatanabeYutaka Watanabe (1 patent)Eizo UchiyamaEizo Uchiyama (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Steel Corporation (1 from 3,554 patents)


1 patent:

1. 4697446 - Roll forming apparatus

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12/19/2025
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