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Ryohei Takei

📍 Ibaraki, JP: #2,214 of 6,779 inventorsTop 35%
Overall (All Time): #1,196,309 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9829726 Electro-optical modulator Toshihiro Kamei, Masahiko Mori, Youichi Sakakibara, Junichi Fujikata 2017-11-28
9690122 Optical semiconductor device Toshihiro Kamei, Masahiko Mori, Youichi Sakakibara, Makoto Okano 2017-06-27
9435946 Interlayer light wave coupling device Youichi Sakakibara, Masahiko Mori, Toshihiro Kamei 2016-09-06
8965157 Semiconductor pointed structure and method for fabricating same, spot size converter, and non-reflective terminator Youichi Sakakibara, Masahiko Mori, Toshihiro Kamei 2015-02-24