Growing community of inventors

Tokyo, Japan

Katsumi Hasegawa

Average Co-Inventor Count = 4.00

ph-index = 2

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 = 89

Katsumi HasegawaCraig Green (2 patents)Katsumi HasegawaDouglas B Flagg (2 patents)Katsumi HasegawaPeter G Kershaw (2 patents)Katsumi HasegawaKatsumi Hasegawa (2 patents)Craig GreenCraig Green (9 patents)Douglas B FlaggDouglas B Flagg (5 patents)Peter G KershawPeter G Kershaw (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kai U.s.a., Ltd. (2 from 66 patents)


2 patents:

1. 6412130 - Multi-tool

2. 6006385 - Multi-tool

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idiyas.com
as of
12/19/2025
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