Growing community of inventors

Tokyo, Japan

Kei Ishikawa

Average Co-Inventor Count = 3.27

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

Kei IshikawaReoto Ueda (3 patents)Kei IshikawaSho Onozuka (3 patents)Kei IshikawaYukio Saito (1 patent)Kei IshikawaTakanobu Yoshimi (1 patent)Kei IshikawaJinichi Mashiyama (1 patent)Kei IshikawaKei Ishikawa (4 patents)Reoto UedaReoto Ueda (10 patents)Sho OnozukaSho Onozuka (6 patents)Yukio SaitoYukio Saito (21 patents)Takanobu YoshimiTakanobu Yoshimi (11 patents)Jinichi MashiyamaJinichi Mashiyama (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Jidosha Kogyo Kabushiki Kaisha (3 from 1,625 patents)

2. Ddk Ltd. (1 from 140 patents)


4 patents:

1. D1101803 - Display screen or portion thereof with animated graphical user interface

2. D1089286 - Display screen or portion thereof with animated graphical user interface

3. D1089287 - Display screen or portion thereof with animated graphical user interface

4. 9608349 - Contact having two contact portions with their central lines in one plane

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as of
12/15/2025
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