Growing community of inventors

Saitama, Japan

Norihiko Kumagai

Average Co-Inventor Count = 2.00

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

Norihiko KumagaiYoshikazu Nagane (1 patent)Norihiko KumagaiNorihiko Kumagai (1 patent)Yoshikazu NaganeYoshikazu Nagane (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. A&d Company, Limited (1 from 81 patents)


1 patent:

1. 10401211 - Electronic balance

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as of
12/18/2025
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