Growing community of inventors

Aichi, Japan

Kei Kitagawa

Average Co-Inventor Count = 3.43

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

Kei KitagawaKatsuhide Kumagai (2 patents)Kei KitagawaYasuhiro Shibata (2 patents)Kei KitagawaMasayuki Oya (1 patent)Kei KitagawaKei Kitagawa (2 patents)Katsuhide KumagaiKatsuhide Kumagai (15 patents)Yasuhiro ShibataYasuhiro Shibata (2 patents)Masayuki OyaMasayuki Oya (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Tokai Rika Denki Seisakusho (2 from 2,003 patents)


2 patents:

1. 10065461 - Tire valve registration system

2. 9428015 - Tire identification code registration system

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12/16/2025
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