Patents/Inventors

Ryoichi Kasahara

TokyoJP22 patents

21 Patents

US125469442026
Optical Module
NTT, Inc.
0 cites
US123460002025
Planar Optical Waveguide Device for Measuring Amplitude Phase of Squeezed Light
Nippon Telegraph And Telephone Corporation
0 cites
US123395642025
Wavelength Conversion Apparatus
Nippon Telegraph And Telephone Corporation
0 cites
US120858362024
Optical Amplifier
Nippon Telegraph And Telephone Corporation
0 cites
US120448832024
Optical Waveguide and Manufacturing Method Thereof
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US120322692024
Wavelength Conversion Apparatus
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US120076662024
Wavelength Conversion Element and Method for Producing Same
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US119888732024
End Structure of a Waveguide
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US119716442024
Wavelength Conversion Device
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US119601522024
Method for Adjusting Transmitted Wavelength of Signal Light Transmitted Through Optical Waveguide Device
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US118927452024
Wavelength Conversion Element and Method for Manufacturing Same
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US118885282024
Optical Communication System
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US118529532023
Optical Element and Manufacturing Method Thereof
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US118357682023
Filling Resin and Optical Waveguide Circuit Filled with Filling Resin
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US118157852023
Wavelength Conversion Optical Element
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US117684212023
Wavelength Conversion Device
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US117405372023
Optical Signal Processing Circuit
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US117334692023
Planar Lightwave Circuit and Optical Device
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US117335842023
Wavelength Conversion Apparatus
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US116447352023
Wavelength Conversion Element
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US116356412023
Planar-lightwave-type Optical Device
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites