Growing community of inventors

Chigasaki, Japan

Hiroshi Otsuka

Average Co-Inventor Count = 1.00

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 = 0

Hiroshi OtsukaHiroshi Otsuka (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Kasai Kogyo Co., Ltd. (2 from 78 patents)


2 patents:

1. 11912208 - Interior trim for automobiles

2. 10913402 - Interior component and interior component manufacturing method

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as of
12/18/2025
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