Growing community of inventors

Hiroshima, Japan

Yoichi Hangai

Average Co-Inventor Count = 4.00

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

Yoichi HangaiTetsuo Kajihara (1 patent)Yoichi HangaiHiroshi Matsuo (1 patent)Yoichi HangaiEiji Koumoto (1 patent)Yoichi HangaiYoichi Hangai (1 patent)Tetsuo KajiharaTetsuo Kajihara (3 patents)Hiroshi MatsuoHiroshi Matsuo (2 patents)Eiji KoumotoEiji Koumoto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Heavy Industries Limited (1 from 4,626 patents)


1 patent:

1. 6643883 - Wiper for liquid substances

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as of
12/17/2025
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