Growing community of inventors

Osaka, Japan

Takashi Hirohata

Average Co-Inventor Count = 2.00

ph-index = 2

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 = 35

Takashi HirohataTakao Nishida (2 patents)Takashi HirohataTakashi Hirohata (2 patents)Takao NishidaTakao Nishida (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Amchem Products, Inc. (2 from 109 patents)


2 patents:

1. 4411937 - Process and composition for coating metals

2. 4347172 - Process and composition for coating metals

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as of
1/22/2026
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