Growing community of inventors

Tokyo-to, Japan

Hisashi Nakagawa

Average Co-Inventor Count = 4.00

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 = 24

Hisashi NakagawaYoshihiro Yano (2 patents)Hisashi NakagawaTakayuki Chikada (2 patents)Hisashi NakagawaTakehiko Anegawa (2 patents)Hisashi NakagawaHisashi Nakagawa (2 patents)Yoshihiro YanoYoshihiro Yano (22 patents)Takayuki ChikadaTakayuki Chikada (11 patents)Takehiko AnegawaTakehiko Anegawa (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dai Nippon Printing Co., Ltd. (2 from 3,192 patents)


2 patents:

1. 8570143 - Management system

2. 8089341 - Management system

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as of
12/8/2025
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