Inventor
MATSUDA MANABU
JP30 patents
⚠️ This page may combine multiple inventors who share the name “MATSUDA MANABU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
21 patentsUS5477363ADec 19, 1995
Optical switching device
FUJITSU LTD61 citations96
US5373520ADec 13, 1994
Surface emitting laser and method of manufacturing the same
FUJITSU LTD57 citations94
US5170402ADec 8, 1992
Tunable laser diode having a distributed feedback structure
FUJITSU LTD60 citations94
US6437361B1Aug 20, 2002
Semiconductor device and method of using the same
FUJITSU LTD45 citations92
US5533041AJul 2, 1996
Optical transmission and reception device
FUJITSU LTD43 citations92
US5358898AOct 25, 1994
Method of making a tunable laser diode having a distributed feedback structure
FUJITSU LTD20 citations91
US9722397B2Aug 1, 2017
Tunable laser and tunable laser module
FUJITSU LTD7 citations84
US7496127B2Feb 24, 2009
Optical device coupling light propagating in optical waveguide with diffraction grating
FUJITSU LTD8 citations84
US6088377AJul 11, 2000
Optical semiconductor device having a diffraction grating and fabrication process thereof
FUJITSU LTD11 citations74
US5981307ANov 9, 1999
Fabrication process of optical semiconductor device having a diffraction grating
FUJITSU LTD7 citations74
US8906721B2Dec 9, 2014
Semiconductor light emitting device and method for manufacturing the same
FUJITSU LTD4 citations73
US7899283B2Mar 1, 2011
Optical device and method for manufacturing the same
FUJITSU LTD2 citations63
US7574083B2Aug 11, 2009
Optical device having diffraction gratings coupling guided wave, and its manufacture method
FUJITSU LTD3 citations63
US6376338B2Apr 23, 2002
Manufacturing method of a semiconductor device having a diffraction grating
FUJITSU LTD5 citations62
US9952390B2Apr 24, 2018
Optical element, optical module, and optical transmission system
FUJITSU LTD0 citations52
US7852890B2Dec 14, 2010
Semiconductor laser and manufacturing method thereof
FUJITSU LTD1 citations52
US7924896B2Apr 12, 2011
Optical semiconductor device
FUJITSU LTD0 citations51
US9728938B2Aug 8, 2017
Optical semiconductor device, optical semiconductor device array, and optical transmitter module
FUJITSU LTD1 citations50
US8009713B2Aug 30, 2011
Semiconductor laser
FUJITSU LTD1 citations50
US9634465B2Apr 25, 2017
Optical device and optical module
FUJITSU LTD0 citations42
US9819153B2Nov 14, 2017
Optical semiconductor device and manufacturing method thereof
FUJITSU LTD0 citations40