Growing community of inventors

Tokyo, Japan

Tsuneo Oikawa

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 = 8

Tsuneo Oikawa ↔ Takashi Tamura (1 patent)Tsuneo Oikawa ↔ Yutaka Mihara (1 patent)Tsuneo Oikawa ↔ Takeshi Kuwano (1 patent)Tsuneo Oikawa ↔ Akira Takase (1 patent)Tsuneo Oikawa ↔ Tomoyuki Hirakawa (1 patent)Tsuneo OikawaTsuneo Oikawa (1 patent)Takashi TamuraTakashi Tamura (52 patents)Yutaka MiharaYutaka Mihara (9 patents)Takeshi KuwanoTakeshi Kuwano (4 patents)Akira TakaseAkira Takase (4 patents)Tomoyuki HirakawaTomoyuki Hirakawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nkk Corporation (1 from 614 patents)


1 patent:

1. 5031434 - Plug for manufacturing seamless steel pipe

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as of
12/31/2025
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