Growing community of inventors

Niigata, Japan

Hisashi Matsumura

Average Co-Inventor Count = 1.00

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 = 0

Hisashi Matsumura ↔ Koji Izunome (1 patent)Hisashi Matsumura ↔ Haruo Sudo (1 patent)Hisashi Matsumura ↔ Takashi Ishikawa (1 patent)Hisashi Matsumura ↔ Tatsuhiko Aoki (1 patent)Hisashi Matsumura ↔ Etsuo Fukuda (1 patent)Hisashi MatsumuraHisashi Matsumura (1 patent)Koji IzunomeKoji Izunome (14 patents)Haruo SudoHaruo Sudo (9 patents)Takashi IshikawaTakashi Ishikawa (9 patents)Tatsuhiko AokiTatsuhiko Aoki (8 patents)Etsuo FukudaEtsuo Fukuda (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tohoku University (1 from 958 patents)

2. Globalwafers Japan Co., Ltd. (1 from 21 patents)


1 patent:

1. 12371813 - Silicon wafer and method for producing silicon wafer

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as of
9/10/2025
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