Growing community of inventors

Tokyo, Japan

Katsunori Umezawa

Average Co-Inventor Count = 3.00

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 = 17

Katsunori UmezawaHideyuki Takahashi (1 patent)Katsunori UmezawaYasuhiro Tsutsui (1 patent)Katsunori UmezawaKatsunori Umezawa (1 patent)Hideyuki TakahashiHideyuki Takahashi (108 patents)Yasuhiro TsutsuiYasuhiro Tsutsui (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Fuso Truck & Bus Corporation (1 from 94 patents)


1 patent:

1. 7367182 - Exhaust emission control device for an internal combustion engine

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12/12/2025
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