Inventor
YAMATOYA TAKESHI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “YAMATOYA TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
6 patentsUS7733934B2Jun 8, 2010
Optical waveguide and semiconductor optical element
MITSUBISHI ELECTRIC CORP3 citations61
US7876799B2Jan 25, 2011
Integrated semiconductor optical device
MITSUBISHI ELECTRIC CORP5 citations59
US11552451B2Jan 10, 2023
Semiconductor laser device
MITSUBISHI ELECTRIC CORP0 citations48
US11385403B2Jul 12, 2022
Optical transmission device
MITSUBISHI ELECTRIC CORP0 citations47
US12476434B2Nov 18, 2025
Semiconductor laser device and method for manufacturing the same
MITSUBISHI ELECTRIC CORP0 citations41
US9246622B2Jan 26, 2016
Semiconductor optical element, optical module and method of manufacturing semiconductor optical element
MITSUBISHI ELECTRIC CORP0 citations35