Inventor
KAWAHARA TAKAHIKO
JP10 patents
⚠️ This page may combine multiple inventors who share the name “KAWAHARA TAKAHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
6 patentsUS7123639B2Oct 17, 2006
Semiconductor optical device and method of making the same
SUMITOMO ELECTRIC INDUSTRIES2 citations60
US7723132B2May 25, 2010
Semiconductor laser and the method for manufacturing the same
SUMITOMO ELECTRIC INDUSTRIES0 citations49
US7627011B2Dec 1, 2009
Distributed feedback laser diode and a method for manufacturing the same
SUMITOMO ELECTRIC INDUSTRIES0 citations49
US7460575B2Dec 2, 2008
Semiconductor laser and the method for manufacturing the same
SUMITOMO ELECTRIC INDUSTRIES0 citations49
US9899549B2Feb 20, 2018
Infrared-ray sensing device
SUMITOMO ELECTRIC INDUSTRIES1 citations46
US7408965B2Aug 5, 2008
Semiconductor laser diode with emission efficiency independent of thickness of p-type cladding layer
SUMITOMO ELECTRIC INDUSTRIES0 citations40