Growing community of inventors

Tokyo, Japan

Kei Shirai

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 = 5

Kei Shirai ↔ Ryutaro Ichimura (1 patent)Kei Shirai ↔ Takeshi Fujikawa (1 patent)Kei ShiraiKei Shirai (1 patent)Ryutaro IchimuraRyutaro Ichimura (8 patents)Takeshi FujikawaTakeshi Fujikawa (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Square Enix (1 from 270 patents)


1 patent:

1. D573658 - Arcade video game machine

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/3/2026
Loading…