Growing community of inventors

Azumino, Japan

Yoichi Fujikawa

Average Co-Inventor Count = 3.50

ph-index = 4

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 = 90

Yoichi FujikawaTakeshi Koshihara (6 patents)Yoichi FujikawaSumio Utsunomiya (6 patents)Yoichi FujikawaTakeyoshi Ushiki (6 patents)Yoichi FujikawaOsamu Eda (1 patent)Yoichi FujikawaYoichi Fujikawa (7 patents)Takeshi KoshiharaTakeshi Koshihara (118 patents)Sumio UtsunomiyaSumio Utsunomiya (32 patents)Takeyoshi UshikiTakeyoshi Ushiki (19 patents)Osamu EdaOsamu Eda (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seiko Epson Corporation (5 from 33,442 patents)

2. Japan Display Inc. (2 from 5,670 patents)


7 patents:

1. 9891458 - Input-capable display device

2. 9069401 - Input-capable display device

3. 7948179 - Organic electroluminescence device having input function and electronic apparatus

4. 7876037 - Organic electroluminescence device having input function and electronic apparatus

5. 7737637 - Organic electroluminescence device having input function and electronic apparatus

6. 7633566 - Input-capable display device

7. 7490973 - Lighting device, electro-optical device and electronic apparatus

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as of
12/29/2025
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