Inventor
OKAHASHI Kosuke
JP8 patents
Patents
8 patentsUS11940708B2Mar 26, 2024
Optical modulator
SUMITOMO OSAKA CEMENT CO LTD4 citations72
US11977284B2May 7, 2024
Optical waveguide device, manufacturing method of optical modulation element, optical modulator, optical modulation module, and optical transmission apparatus
SUMITOMO OSAKA CEMENT CO LTD3 citations70
US12130536B2Oct 29, 2024
Optical modulator
SUMITOMO OSAKA CEMENT CO LTD0 citations50
US12092910B2Sep 17, 2024
Optical modulator
SUMITOMO OSAKA CEMENT CO LTD0 citations50
US12372817B2Jul 29, 2025
Optical waveguide element, and optical modulation device and optical transmission device using same
SUMITOMO OSAKA CEMENT CO LTD0 citations49
US12265310B2Apr 1, 2025
Optical waveguide device, optical modulator, optical modulation module, and optical transmission apparatus
SUMITOMO OSAKA CEMENT CO LTD0 citations49
US12204185B2Jan 21, 2025
Optical waveguide element and optical modulator
SUMITOMO OSAKA CEMENT CO LTD0 citations49
US12332534B2Jun 17, 2025
Optical waveguide device, optical modulator, optical modulation module, and optical transmission apparatus
SUMITOMO OSAKA CEMENT CO LTD0 citations48