Growing community of inventors

Tokyo, Japan

Takumi Kaiya

Average Co-Inventor Count = 3.13

ph-index = 6

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 = 103

Takumi KaiyaHiroyuki Tanaka (5 patents)Takumi KaiyaAkinori Tsujikawa (4 patents)Takumi KaiyaHiroyuki Tanaka (1 patent)Takumi KaiyaAsami Nishimura (1 patent)Takumi KaiyaKentaro Kasugai (1 patent)Takumi KaiyaNobuharu Tsusaka (1 patent)Takumi KaiyaTakumi Kaiya (6 patents)Hiroyuki TanakaHiroyuki Tanaka (72 patents)Akinori TsujikawaAkinori Tsujikawa (10 patents)Hiroyuki TanakaHiroyuki Tanaka (90 patents)Asami NishimuraAsami Nishimura (2 patents)Kentaro KasugaiKentaro Kasugai (1 patent)Nobuharu TsusakaNobuharu Tsusaka (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fujitsu Frontech Limited (6 from 266 patents)


6 patents:

1. D859409 - Data input machine

2. D859410 - Data input machine

3. D855613 - Data input machine

4. D837213 - Data input machine

5. D816675 - Mouse

6. D785623 - Data input machine

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as of
1/7/2026
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