Growing community of inventors

Chiba, Japan

Yuuzo Ootuka

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

Yuuzo Ootuka ↔ Hiroki Nakamaru (1 patent)Yuuzo Ootuka ↔ Hiroyuki Ogata (1 patent)Yuuzo Ootuka ↔ Chiyoko Tada (1 patent)Yuuzo Ootuka ↔ Shigeru Umino (1 patent)Yuuzo Ootuka ↔ Takeshi Sakuma (1 patent)Yuuzo OotukaYuuzo Ootuka (1 patent)Hiroki NakamaruHiroki Nakamaru (29 patents)Hiroyuki OgataHiroyuki Ogata (15 patents)Chiyoko TadaChiyoko Tada (12 patents)Shigeru UminoShigeru Umino (11 patents)Takeshi SakumaTakeshi Sakuma (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Jfe Steel Corporation (1 from 1,796 patents)


1 patent:

1. 7186467 - Black zinc-plated steel sheet

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as of
12/29/2025
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