Growing community of inventors

Saitama, Japan

Koichi Shiroyama

Average Co-Inventor Count = 7.00

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 = 1

Koichi Shiroyama ↔ Mitsutoshi Higashi (1 patent)Koichi Shiroyama ↔ Hideaki Sakaguchi (1 patent)Koichi Shiroyama ↔ Akinori Shiraishi (1 patent)Koichi Shiroyama ↔ Shigeru Matsumura (1 patent)Koichi Shiroyama ↔ Katsushi Sugai (1 patent)Koichi Shiroyama ↔ Kohei Kato (1 patent)Koichi ShiroyamaKoichi Shiroyama (1 patent)Mitsutoshi HigashiMitsutoshi Higashi (132 patents)Hideaki SakaguchiHideaki Sakaguchi (82 patents)Akinori ShiraishiAkinori Shiraishi (66 patents)Shigeru MatsumuraShigeru Matsumura (31 patents)Katsushi SugaiKatsushi Sugai (3 patents)Kohei KatoKohei Kato (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Adv Antest Corporation (1 from 2,253 patents)

2. Shinko Electric Industries Co., Ltd. (1 from 1,694 patents)


1 patent:

1. 8922232 - Test-use individual substrate, probe, and semiconductor wafer testing apparatus

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12/10/2025
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