Inventor
HANAMAKI YOSHIHIKO
JP14 patents
Patents
14 patentsUS6583510B2Jun 24, 2003
Semiconductor device with varying thickness gold electrode
MITSUBISHI ELECTRIC CORP18 citations84
US7682857B2Mar 23, 2010
Method for manufacturing semiconductor optical device
MITSUBISHI ELECTRIC CORP9 citations83
US6674784B2Jan 6, 2004
Distributed feedback laser device and method for manufacturing the same
MITSUBISHI ELECTRIC CORP16 citations83
US6803597B2Oct 12, 2004
Semiconductor light-emitting device using graded multi quantum barrier
MITSUBISHI ELECTRIC CORP15 citations82
US7187701B2Mar 6, 2007
Ridge waveguide semiconductor laser
MITSUBISHI ELECTRIC CORP9 citations73
US6774389B2Aug 10, 2004
Optical semiconductor device
MITSUBISHI ELECTRIC CORP12 citations72
US6768760B2Jul 27, 2004
Ridge-waveguide semiconductor laser device
MITSUBISHI ELECTRIC CORP5 citations62
US7289546B1Oct 30, 2007
Semiconductor laser having an improved stacked structure
MITSUBISHI ELECTRIC CORP2 citations61
US7075119B2Jul 11, 2006
Optical semiconductor device and method of fabricating optical semiconductor device
MITSUBISHI ELECTRIC CORP4 citations61
US7259406B2Aug 21, 2007
Semiconductor optical element
MITSUBISHI ELECTRIC CORP2 citations60
US7564076B2Jul 21, 2009
Semiconductor device and manufacturing method therefor
MITSUBISHI ELECTRIC CORP0 citations52
US7394114B2Jul 1, 2008
Semiconductor device and manufacturing method therefor
MITSUBISHI ELECTRIC CORP0 citations52
US7759148B2Jul 20, 2010
Method for manufacturing semiconductor optical device
MITSUBISHI ELECTRIC CORP1 citations51
US7539225B2May 26, 2009
Semiconductor laser
MITSUBISHI ELECTRIC CORP0 citations51