Growing community of inventors

Nagano, Japan

Ryo Yamaguchi

Average Co-Inventor Count = 2.40

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 = 0

Ryo YamaguchiTsuneo Kasai (2 patents)Ryo YamaguchiSho Arai (1 patent)Ryo YamaguchiRyo Yamaguchi (2 patents)Tsuneo KasaiTsuneo Kasai (14 patents)Sho AraiSho Arai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seiko Epson Corporation (2 from 33,404 patents)


2 patents:

1. 11991326 - Image reading device with document pressing section

2. 11943413 - Image reading device

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as of
12/8/2025
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