Growing community of inventors

Ibaraki, Japan

Yoichi Kigawa

Average Co-Inventor Count = 1.48

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 = 6

Yoichi KigawaKazumasa Okada (1 patent)Yoichi KigawaNobuyuki Kozonoi (1 patent)Yoichi KigawaTatsuya Kitahara (1 patent)Yoichi KigawaYatfei Chan (1 patent)Yoichi KigawaNaruyoshi Itadani (1 patent)Yoichi KigawaYoichi Kigawa (4 patents)Kazumasa OkadaKazumasa Okada (5 patents)Nobuyuki KozonoiNobuyuki Kozonoi (4 patents)Tatsuya KitaharaTatsuya Kitahara (3 patents)Yatfei ChanYatfei Chan (1 patent)Naruyoshi ItadaniNaruyoshi Itadani (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nitto-Denko Corporation (4 from 3,881 patents)


4 patents:

1. 12453336 - BRDC sign detecting system

2. 12099017 - Inspection system, inspection method, and inspection program

3. 11410409 - Image classification system and method, classification data creation system and method, and storage medium

4. 10891725 - Inspection apparatus and inspection method

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as of
1/21/2026
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