Growing community of inventors

Tokyo, Japan

Hiromi Koyama

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 = 11

Hiromi KoyamaSeiji Momota (1 patent)Hiromi KoyamaTakashi Shiigi (1 patent)Hiromi KoyamaToshiyuki Matsui (1 patent)Hiromi KoyamaAkihiro Fukuchi (1 patent)Hiromi KoyamaFukuchi Akihiro (0 patent)Hiromi KoyamaHiromi Koyama (1 patent)Seiji MomotaSeiji Momota (26 patents)Takashi ShiigiTakashi Shiigi (20 patents)Toshiyuki MatsuiToshiyuki Matsui (11 patents)Akihiro FukuchiAkihiro Fukuchi (1 patent)Fukuchi AkihiroFukuchi Akihiro (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fuji Electric Co., Ltd. (1 from 4,814 patents)


1 patent:

1. 9236460 - Semiconductor device having a diffusion region

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1/5/2026
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