Inventor
HIROYAMA RYOJI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “HIROYAMA RYOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANYO ELECTRIC CO
22 patentsUS7488613B2Feb 10, 2009
Nitride-based light-emitting device and method of manufacturing the same
SANYO ELECTRIC CO19 citations92
US5559818ASep 24, 1996
Semiconductor laser device
SANYO ELECTRIC CO28 citations92
US5555271ASep 10, 1996
Semiconductor laser device
SANYO ELECTRIC CO28 citations91
US5963572AOct 5, 1999
Semiconductor laser device and manufacturing method thereof
SANYO ELECTRIC CO23 citations90
US7154123B2Dec 26, 2006
Nitride-based semiconductor light-emitting device
SANYO ELECTRIC CO15 citations84
US7892874B2Feb 22, 2011
Nitride-based light-emitting device and method of manufacturing the same
SANYO ELECTRIC CO5 citations74
US5586136ADec 17, 1996
Semiconductor laser device with a misoriented substrate
SANYO ELECTRIC CO9 citations72
US7592630B2Sep 22, 2009
Nitride-based light-emitting device and method of manufacturing the same
SANYO ELECTRIC CO4 citations63
US6778575B2Aug 17, 2004
AlGaInP-based high-output red semiconductor laser device
SANYO ELECTRIC CO2 citations63
US6768755B2Jul 27, 2004
Semiconductor laser device
SANYO ELECTRIC CO3 citations63
US7512167B2Mar 31, 2009
Integrated semiconductor laser device and method of fabricating the same
SANYO ELECTRIC CO3 citations62
US6967985B2Nov 22, 2005
Surface emission semiconductor laser device
SANYO ELECTRIC CO3 citations62
US6771676B2Aug 3, 2004
Semiconductor laser device and method of fabricating the same
SANYO ELECTRIC CO5 citations62
US6654397B2Nov 25, 2003
Semiconductor laser device and manufacturing method thereof
SANYO ELECTRIC CO2 citations62
US7260130B2Aug 21, 2007
Semiconductor laser device and method of fabricating the same
SANYO ELECTRIC CO6 citations61
US7885304B2Feb 8, 2011
Nitride-based semiconductor laser device and method of manufacturing the same
SANYO ELECTRIC CO3 citations60
US6044099AMar 28, 2000
Semiconductor laser device
SANYO ELECTRIC CO5 citations58
US7961768B2Jun 14, 2011
Integrated semiconductor laser device and method of fabricating the same
SANYO ELECTRIC CO0 citations52
US7903709B2Mar 8, 2011
Semiconductor laser device and method of manufacturing the same
SANYO ELECTRIC CO1 citations52
US8013344B2Sep 6, 2011
Method of manufacturing semiconductor device and semiconductor device
SANYO ELECTRIC CO0 citations51
US7978744B2Jul 12, 2011
Nitride based semiconductor laser device with oxynitride protective films on facets
SANYO ELECTRIC CO0 citations41
US7924898B2Apr 12, 2011
Nitride based semiconductor laser device with oxynitride protective coatings on facets
SANYO ELECTRIC CO0 citations41
HIROYAMA RYOJI
2 patentsUS8193016B2Jun 5, 2012
Semiconductor laser device and method of manufacturing the same
HIROYAMA RYOJI0 citations47
US8750343B2Jun 10, 2014
Nitride-based semiconductor light-emitting device, nitride-based semiconductor laser device, nitride-based semiconductor light-emitting diode, method of manufacturing the same, and method of forming nitride-based semiconductor layer
HIROYAMA RYOJI0 citations44