Growing community of inventors

Yokohama, Japan

Takao Shimizu

Average Co-Inventor Count = 7.00

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 = 16

Takao Shimizu ↔ Yutaka Sasaki (1 patent)Takao Shimizu ↔ Yoshimi Nakamura (1 patent)Takao Shimizu ↔ Kunio Mori (1 patent)Takao Shimizu ↔ Kenichi Miyaki (1 patent)Takao Shimizu ↔ Seiichi Kawato (1 patent)Takao Shimizu ↔ Yuichi Tagawa (1 patent)Takao ShimizuTakao Shimizu (1 patent)Yutaka SasakiYutaka Sasaki (82 patents)Yoshimi NakamuraYoshimi Nakamura (23 patents)Kunio MoriKunio Mori (19 patents)Kenichi MiyakiKenichi Miyaki (15 patents)Seiichi KawatoSeiichi Kawato (10 patents)Yuichi TagawaYuichi Tagawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Rayon Company, Limited (1 from 1,357 patents)


1 patent:

1. 6479691 - Catalyst for producing unsaturated nitrile

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as of
1/8/2026
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