Growing community of inventors

Higashimatsuyama, Japan

Hirofumi Koyama

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 = 5

Hirofumi KoyamaHirofumi Koyama (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Thomson Consumer Electronics S.a. (1 from 70 patents)


1 patent:

1. 5953145 - Multiple light path arrangement

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as of
12/15/2025
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