Growing community of inventors

Kagawa, Japan

Hiroshi Shirakawa

Average Co-Inventor Count = 4.00

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 = 1

Hiroshi Shirakawa ↔ Tetsuo Tsuchiya (1 patent)Hiroshi Shirakawa ↔ Takako Nakamura (1 patent)Hiroshi Shirakawa ↔ Toshimitsu Takagi (1 patent)Hiroshi ShirakawaHiroshi Shirakawa (1 patent)Tetsuo TsuchiyaTetsuo Tsuchiya (16 patents)Takako NakamuraTakako Nakamura (1 patent)Toshimitsu TakagiToshimitsu Takagi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. National Institute of Advanced Industrial Science and Technology (1 from 1,710 patents)

2. Takagi Kogyo Co., Ltd. (1 from 2 patents)

3. Kagawa Prefectural Government (1 from 1 patent)


1 patent:

1. 10364528 - Rope and method of manufacturing the same

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12/7/2025
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