Growing community of inventors

Tokyo, Japan

Yutaka Yamana

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 = 4

Yutaka YamanaYasuhiro Takahashi (1 patent)Yutaka YamanaJunichi Takeda (1 patent)Yutaka YamanaAkio Setsumasa (1 patent)Yutaka YamanaTakafumi Kaya (1 patent)Yutaka YamanaTakafumi Sega Corporation Kaya (0 patent)Yutaka YamanaYutaka Yamana (1 patent)Yasuhiro TakahashiYasuhiro Takahashi (82 patents)Junichi TakedaJunichi Takeda (7 patents)Akio SetsumasaAkio Setsumasa (4 patents)Takafumi KayaTakafumi Kaya (1 patent)Takafumi Sega Corporation KayaTakafumi Sega Corporation Kaya (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sega Enterprises, Ltd. (1 from 264 patents)

2. Sega Corporation (134 patents)


1 patent:

1. 7431651 - Data processing method

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1/7/2026
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