Growing community of inventors

Osaka-hu, Japan

Hirofumi Kohda

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 = 8

Hirofumi KohdaTsutomu Katsumata (1 patent)Hirofumi KohdaHirofumi Kohda (1 patent)Tsutomu KatsumataTsutomu Katsumata (6 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,761 patents)


1 patent:

1. 7900320 - Opening/closing device for document pressing device

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12/17/2025
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