Growing community of inventors

Yokohama, Japan

Tsuyoshi Nakagawa

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 = 4

Tsuyoshi NakagawaShoichi Kanda (1 patent)Tsuyoshi NakagawaYoshiyuki Yamaguchi (1 patent)Tsuyoshi NakagawaKeietsu Kato (1 patent)Tsuyoshi NakagawaShogo Suzuki (1 patent)Tsuyoshi NakagawaTakamasa Ohno (1 patent)Tsuyoshi NakagawaMasami Murakami (1 patent)Tsuyoshi NakagawaTsuyoshi Nakagawa (1 patent)Shoichi KandaShoichi Kanda (15 patents)Yoshiyuki YamaguchiYoshiyuki Yamaguchi (3 patents)Keietsu KatoKeietsu Kato (1 patent)Shogo SuzukiShogo Suzuki (1 patent)Takamasa OhnoTakamasa Ohno (1 patent)Masami MurakamiMasami Murakami (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nitto Chemical Industry Co., Ltd. (1 from 161 patents)

2. Japan Petroleum Exploration Co., Ltd. (1 from 80 patents)


1 patent:

1. 5487425 - Composition and method for recovery of petroleum and gas

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1/7/2026
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