Growing community of inventors

Tokyo, Japan

Ryu Kai

Average Co-Inventor Count = 5.00

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

Ryu Kai ↔ Shinji Seto (1 patent)Ryu Kai ↔ Kimio Nishino (1 patent)Ryu Kai ↔ Shunsuke Aritomi (1 patent)Ryu Kai ↔ Daisuke Kojima (1 patent)Ryu KaiRyu Kai (1 patent)Shinji SetoShinji Seto (45 patents)Kimio NishinoKimio Nishino (24 patents)Shunsuke AritomiShunsuke Aritomi (15 patents)Daisuke KojimaDaisuke Kojima (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Astemo Ltd. (1 from 1,210 patents)


1 patent:

1. 12319251 - Electric parking brake device and electric parking brake control method

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as of
12/26/2025
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