Inventor
KATSUYAMA TSUKURU
JP24 patents
Patents
24 patentsUS6690079B2Feb 10, 2004
Light-receiving device
SUMITOMO ELECTRIC INDUSTRIES20 citations92
US5663975ASep 2, 1997
Multi-beam semiconductor laser with separated contacts characterized by semiconductor mixed crystal and active layer
SUMITOMO ELECTRIC INDUSTRIES34 citations92
US6625187B1Sep 23, 2003
Semiconductor optical device and method of manufacturing the same
SUMITOMO ELECTRIC INDUSTRIES21 citations91
US7405421B2Jul 29, 2008
Optical integrated device
SUMITOMO ELECTRIC INDUSTRIES8 citations74
US7356063B2Apr 8, 2008
Semiconductor surface emitting device
SUMITOMO ELECTRIC INDUSTRIES8 citations74
US5734671AMar 31, 1998
Semiconductor laser diode
SUMITOMO ELECTRIC INDUSTRIES8 citations74
US5617957AApr 8, 1997
Method of sorting semiconductor lasers
SUMITOMO ELECTRIC INDUSTRIES9 citations74
US5586135ADec 17, 1996
Semiconductor laser having an AlGaInP cladding layer
SUMITOMO ELECTRIC INDUSTRIES8 citations74
US5479427ADec 26, 1995
Semiconductor laser and method of manufacturing the same
SUMITOMO ELECTRIC INDUSTRIES13 citations74
US5446537AAug 29, 1995
Method of sorting semiconductor lasers
SUMITOMO ELECTRIC INDUSTRIES16 citations74
US5359619AOct 25, 1994
Multi-beam semiconductor laser and method for producing the same
SUMITOMO ELECTRIC INDUSTRIES10 citations74
US5276698AJan 4, 1994
Semiconductor laser having an optical waveguide layer including an AlGaInP active layer
SUMITOMO ELECTRIC INDUSTRIES15 citations74
US9923337B2Mar 20, 2018
Quantum cascade laser
SUMITOMO ELECTRIC INDUSTRIES2 citations72
US7613217B2Nov 3, 2009
Semiconductor surface emitting device
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US7379485B2May 27, 2008
Semiconductor optical device
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US7271422B2Sep 18, 2007
Semiconductor optical device
SUMITOMO ELECTRIC INDUSTRIES6 citations63
US7208774B2Apr 24, 2007
Semiconductor optical device
SUMITOMO ELECTRIC INDUSTRIES4 citations63
US7149375B2Dec 12, 2006
Optical waveguide module
SUMITOMO ELECTRIC INDUSTRIES5 citations62
US7986721B2Jul 26, 2011
Semiconductor optical device including a PN junction formed by a second region of a first conductive type semiconductor layer and a second conductive type single semiconductor layer
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US7838893B2Nov 23, 2010
Semiconductor optical device
SUMITOMO ELECTRIC INDUSTRIES1 citations52
US7323722B2Jan 29, 2008
Semiconductor optical device
SUMITOMO ELECTRIC INDUSTRIES1 citations52
US9882347B2Jan 30, 2018
Quantum cascade laser array
SUMITOMO ELECTRIC INDUSTRIES1 citations51
US10277010B2Apr 30, 2019
Semiconductor laser
SUMITOMO ELECTRIC INDUSTRIES0 citations42
US10312666B2Jun 4, 2019
Semiconductor laser
SUMITOMO ELECTRIC INDUSTRIES0 citations41