Growing community of inventors

Nagano, Japan

Tatsuya Hirai

Average Co-Inventor Count = 3.00

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

Tatsuya Hirai ↔ Nobuyuki Kobayashi (1 patent)Tatsuya Hirai ↔ Shinji Satou (1 patent)Tatsuya HiraiTatsuya Hirai (1 patent)Nobuyuki KobayashiNobuyuki Kobayashi (29 patents)Shinji SatouShinji Satou (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kyb-ys Co., Ltd. (1 from 14 patents)


1 patent:

1. 10451093 - Fluid pressure cylinder

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as of
12/12/2025
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