Growing community of inventors

Sagamihara, Japan

Tohru Okuyama

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 = 6

Tohru Okuyama ↔ Goro Shimizu (1 patent)Tohru Okuyama ↔ Hajime Hasegawa (1 patent)Tohru Okuyama ↔ Yoshimi Hayashi (1 patent)Tohru Okuyama ↔ Atsuo Takei (1 patent)Tohru Okuyama ↔ Taiji Koga (1 patent)Tohru Okuyama ↔ Hideo Torigoe (1 patent)Tohru OkuyamaTohru Okuyama (1 patent)Goro ShimizuGoro Shimizu (7 patents)Hajime HasegawaHajime Hasegawa (7 patents)Yoshimi HayashiYoshimi Hayashi (6 patents)Atsuo TakeiAtsuo Takei (2 patents)Taiji KogaTaiji Koga (2 patents)Hideo TorigoeHideo Torigoe (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Bridgestone Corporation (1 from 5,119 patents)

2. Matsui Shikiso Chemical Co., Ltd. (1 from 18 patents)


1 patent:

1. 4666949 - Thermochromic polyurethane foam

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as of
12/9/2025
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