Growing community of inventors

Osaka, Japan

Yuma Ishihara

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

Yuma IshiharaHirokazu Tsuneda (1 patent)Yuma IshiharaYuma Ishihara (1 patent)Hirokazu TsunedaHirokazu Tsuneda (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tsubakimoto Chain Company (1 from 906 patents)


1 patent:

1. 12152640 - Cam clutch

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as of
12/10/2025
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