Inventor
KAWAKAMI TOSHIYUKI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “KAWAKAMI TOSHIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
16 patentsUS7724793B2May 25, 2010
Nitride semiconductor laser element and fabrication method thereof
SHARP KK22 citations92
US7041523B2May 9, 2006
Method of fabricating nitride semiconductor device
SHARP KK26 citations92
US6737678B2May 18, 2004
Nitride semiconductor device and fabrication method thereof
SHARP KK32 citations92
US7167489B2Jan 23, 2007
GaN-based semiconductor laser device
SHARP KK14 citations83
US7199398B2Apr 3, 2007
Nitride semiconductor light emitting device having electrode electrically separated into at least two regions
SHARP KK14 citations82
US6865201B2Mar 8, 2005
Semiconductor laser device, method of fabricating the same and optical information reproduction apparatus
SHARP KK8 citations73
US7995632B2Aug 9, 2011
Nitride semiconductor laser chip and fabrication method thereof
SHARP KK2 citations62
US7899100B2Mar 1, 2011
GaN laser element
SHARP KK2 citations62
US7123642B2Oct 17, 2006
Multi-wavelength laser device
SHARP KK2 citations62
US10998695B2May 4, 2021
Semiconductor laser device, manufacturing method thereof, and light emitting device
SHARP KK0 citations56
US7928460B2Apr 19, 2011
Light emitting element and manufacturing method thereof
SHARP KK0 citations52
US8824516B2Sep 2, 2014
GaN-based laser device
SHARP KK0 citations51
US8737443B2May 27, 2014
Nitride semiconductor laser device and wafer
SHARP KK0 citations51
US8379682B2Feb 19, 2013
Nitride semiconductor laser chip and method of fabrication thereof
SHARP KK1 citations51
US8358675B2Jan 22, 2013
Nitride semiconductor laser device and wafer
SHARP KK0 citations51
US9614350B2Apr 4, 2017
Semiconductor laser element and near-field light output device using same
SHARP KK1 citations44