Growing community of inventors

Tokyo, Japan

Shigeki Tooyama

Average Co-Inventor Count = 2.00

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 = 15

Shigeki TooyamaNaoyuki Koyama (1 patent)Shigeki TooyamaShigeki Tooyama (1 patent)Naoyuki KoyamaNaoyuki Koyama (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Namco Limited (1 from 199 patents)


1 patent:

1. 6642917 - Sign perception system, game system, and computer-readable recording medium having game program recorded thereon

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as of
12/12/2025
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