Inventor
YANAGIHARA AI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “YANAGIHARA AI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
15 patentsUS12092870B2Sep 17, 2024
Optical waveguide
NIPPON TELEGRAPH & TELEPHONE2 citations72
US11966082B2Apr 23, 2024
Optical circuit and optical connection structure
NIPPON TELEGRAPH & TELEPHONE2 citations71
US11934010B2Mar 19, 2024
Optical connection structure
NIPPON TELEGRAPH & TELEPHONE2 citations71
US11422321B2Aug 23, 2022
Optical fiber connection component and optical device manufacturing method
NIPPON TELEGRAPH & TELEPHONE2 citations71
US11415761B2Aug 16, 2022
Optical fiber guide component, optical connection structure and method for producing same
NIPPON TELEGRAPH & TELEPHONE3 citations71
US12306438B2May 20, 2025
Optical waveguide
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12032231B2Jul 9, 2024
Optical signal processing apparatus and manufacturing method thereof
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12022246B2Jun 25, 2024
Optical signal processing apparatus
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12007665B2Jun 11, 2024
Optical signal processing apparatus
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11740491B2Aug 29, 2023
Optical module and manufacturing method thereof
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11405702B2Aug 2, 2022
Optical signal processing device and method for controlling same
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11112561B2Sep 7, 2021
Variable wavelength filter
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11977315B2May 7, 2024
Optical module
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11635641B2Apr 25, 2023
Planar-lightwave-type optical device
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11199659B2Dec 14, 2021
Optical module
NIPPON TELEGRAPH & TELEPHONE0 citations50