Growing community of inventors

Kamakura, Japan

Hirohiko Shimizu

Average Co-Inventor Count = 2.86

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 = 47

Hirohiko ShimizuMasanobu Naruto (1 patent)Hirohiko ShimizuKiyoshi Okano (1 patent)Hirohiko ShimizuHitoshi Ozawa (1 patent)Hirohiko ShimizuHaruji Nakamura (1 patent)Hirohiko ShimizuYosuke Aoki (1 patent)Hirohiko ShimizuHirohiko Shimizu (2 patents)Masanobu NarutoMasanobu Naruto (7 patents)Kiyoshi OkanoKiyoshi Okano (4 patents)Hitoshi OzawaHitoshi Ozawa (3 patents)Haruji NakamuraHaruji Nakamura (2 patents)Yosuke AokiYosuke Aoki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toray Industries, Inc. (2 from 3,481 patents)


2 patents:

1. 5661000 - Serine protease and serine protease gene

2. 4024073 - Hydrogel and production thereof

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as of
1/7/2026
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