Growing community of inventors

Shimodate, Japan

Yasuhiko Yokoya

Average Co-Inventor Count = 6.00

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 = 2

Yasuhiko Yokoya ↔ Eisaku Namai (1 patent)Yasuhiko Yokoya ↔ Noboru Yamazaki (1 patent)Yasuhiko Yokoya ↔ Syuuichi Hasuda (1 patent)Yasuhiko Yokoya ↔ Syuuzou Yamada (1 patent)Yasuhiko Yokoya ↔ Mitsuo Nakamura (1 patent)Yasuhiko YokoyaYasuhiko Yokoya (1 patent)Eisaku NamaiEisaku Namai (3 patents)Noboru YamazakiNoboru Yamazaki (1 patent)Syuuichi HasudaSyuuichi Hasuda (1 patent)Syuuzou YamadaSyuuzou Yamada (1 patent)Mitsuo NakamuraMitsuo Nakamura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Chemical Company, Ltd. (1 from 1,641 patents)

2. Yamada Den-on Co., Ltd. (1 from 2 patents)


1 patent:

1. 5559443 - Jig for measuring the characteristics of a semiconductor, manufacturing

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1/7/2026
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