Growing community of inventors

Tokyo, Japan

Ken Matsumura

Average Co-Inventor Count = 3.00

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 = 4

Ken MatsumuraToshio Kimura (1 patent)Ken MatsumuraTeruhiko Tokumo (1 patent)Ken MatsumuraKen Matsumura (1 patent)Toshio KimuraToshio Kimura (53 patents)Teruhiko TokumoTeruhiko Tokumo (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yokogawa Hokushin Electric Corp. (1 from 54 patents)


1 patent:

1. 4654672 - Multiple color recording apparatus

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as of
12/18/2025
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