Takushi Kazama

19 Patents

• US125741362026

  Optical Amplification System, Optical Amplification Apparatus and Optical Amplification Method

  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
• US121533252024

  Wavelength Converter

  Nippon Telegraph And Telephone Corporation

  0 cites
• US120858362024

  Optical Amplifier

  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
• US119716442024

  Wavelength Conversion Device

  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

  0 cites
• US119297842024

  Wavelength Dispersion Compensation Apparatus and Wavelength Dispersion Compensation Method

  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
• US118157152023

  Planar Optical Waveguide Device

  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
• US117335842023

  Wavelength Conversion Apparatus

  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

  0 cites
• US116447352023

  Wavelength Conversion Element

  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

  0 cites
• US115613532023

  Optical Circuit

  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

  0 cites