Growing community of inventors

Sayama, Japan

Hichihiro Iwamura

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 = 2

Hichihiro IwamuraEiichi Kitabayashi (1 patent)Hichihiro IwamuraHichihiro Iwamura (1 patent)Eiichi KitabayashiEiichi Kitabayashi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Citizen Watch Company, Ltd. (1 from 2,004 patents)


1 patent:

1. 4856687 - Watch case and band attachment structure

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as of
1/23/2026
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