Growing community of inventors

Osaka, Japan

Yoshio Umezawa

Average Co-Inventor Count = 3.75

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

Yoshio UmezawaAkira Niitsuma (1 patent)Yoshio UmezawaSatoshi Fujii (1 patent)Yoshio UmezawaTakeshi Fujiwara (1 patent)Yoshio UmezawaToshikuni Suzuki (1 patent)Yoshio UmezawaTakanori Maruoka (1 patent)Yoshio UmezawaBungo Sasaki (1 patent)Yoshio UmezawaYoshio Umezawa (2 patents)Akira NiitsumaAkira Niitsuma (63 patents)Satoshi FujiiSatoshi Fujii (19 patents)Takeshi FujiwaraTakeshi Fujiwara (8 patents)Toshikuni SuzukiToshikuni Suzuki (8 patents)Takanori MaruokaTakanori Maruoka (7 patents)Bungo SasakiBungo Sasaki (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shimano Inc. (2 from 3,293 patents)


2 patents:

1. 9832983 - Dual-bearing reel

2. 8666581 - Bicycle motor control apparatus

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as of
12/4/2025
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