Growing community of inventors

Tokyo, Japan

Tsuyoshi Kakuta

Average Co-Inventor Count = 4.00

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 = 1

Tsuyoshi Kakuta ↔ Hiroshi Hanekawa (2 patents)Tsuyoshi Kakuta ↔ Yoichi Sera (2 patents)Tsuyoshi Kakuta ↔ Sadatatsu Ikeda (2 patents)Tsuyoshi KakutaTsuyoshi Kakuta (2 patents)Hiroshi HanekawaHiroshi Hanekawa (19 patents)Yoichi SeraYoichi Sera (7 patents)Sadatatsu IkedaSadatatsu Ikeda (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Agc Inc. (2 from 1,023 patents)


2 patents:

1. 11703751 - Reflective mask blank and reflective mask

2. 11150550 - Reflective mask blank and reflective mask

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as of
12/8/2025
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