Growing community of inventors

Osaka, Japan

Katsumi Umeda

Average Co-Inventor Count = 1.00

ph-index = NA

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

Katsumi UmedaToshio Shirotori (1 patent)Katsumi UmedaAkinori Yamamoto (1 patent)Katsumi UmedaMasanori Tanikawa (1 patent)Katsumi UmedaShinya Okada (1 patent)Katsumi UmedaYasuo Tsuruoka (1 patent)Katsumi UmedaKatsumi Umeda (1 patent)Toshio ShirotoriToshio Shirotori (10 patents)Akinori YamamotoAkinori Yamamoto (2 patents)Masanori TanikawaMasanori Tanikawa (1 patent)Shinya OkadaShinya Okada (1 patent)Yasuo TsuruokaYasuo Tsuruoka (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nidec Sankyo Corporation (1 from 730 patents)

2. Panasonic Automotive Systems Co., Ltd. (1 from 242 patents)


1 patent:

1. 12455429 - Lens unit

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as of
1/5/2026
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