Growing community of inventors

Shiojiri, Japan

Kohei Usuda

Average Co-Inventor Count = 4.21

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 = 16

Kohei UsudaYoshikane Tsuchihashi (2 patents)Kohei UsudaYoshiyuki Tanaka (1 patent)Kohei UsudaHideki Kato (1 patent)Kohei UsudaSoichiro Kii (1 patent)Kohei UsudaKenji Oshima (1 patent)Kohei UsudaTetsuji Yatsunami (1 patent)Kohei UsudaYoshihisa Saka (1 patent)Kohei UsudaKoji Hara (1 patent)Kohei UsudaMatt Delegate (1 patent)Kohei UsudaTsuyoshi Otani (1 patent)Kohei UsudaSatoru Watanabe (1 patent)Kohei UsudaYoshinori Yanagisawa (1 patent)Kohei UsudaDavid Keech (1 patent)Kohei UsudaKohei Usuda (4 patents)Yoshikane TsuchihashiYoshikane Tsuchihashi (12 patents)Yoshiyuki TanakaYoshiyuki Tanaka (197 patents)Hideki KatoHideki Kato (31 patents)Soichiro KiiSoichiro Kii (27 patents)Kenji OshimaKenji Oshima (21 patents)Tetsuji YatsunamiTetsuji Yatsunami (17 patents)Yoshihisa SakaYoshihisa Saka (13 patents)Koji HaraKoji Hara (11 patents)Matt DelegateMatt Delegate (8 patents)Tsuyoshi OtaniTsuyoshi Otani (5 patents)Satoru WatanabeSatoru Watanabe (3 patents)Yoshinori YanagisawaYoshinori Yanagisawa (3 patents)David KeechDavid Keech (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seiko Epson Corporation (4 from 33,404 patents)


4 patents:

1. 11945238 - Liquid ejecting device

2. D815196 - Printer

3. 8837988 - Image reading apparatus

4. 8517375 - Feeding device and recording device

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as of
12/8/2025
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