Inventor
HATAKOSHI GENICHI
JP55 patents
⚠️ This page may combine multiple inventors who share the name “HATAKOSHI GENICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
47 patentsUS6031858AFeb 29, 2000
Semiconductor laser and method of fabricating same
TOSHIBA KK127 citations99
US5889295AMar 30, 1999
Semiconductor device
TOSHIBA KK197 citations99
US6067309AMay 23, 2000
Compound semiconductor light-emitting device of gallium nitride series
TOSHIBA KK138 citations98
US6060335AMay 9, 2000
Semiconductor light emitting device and method of manufacturing the same
TOSHIBA KK102 citations98
US6057565AMay 2, 2000
Semiconductor light emitting device including a non-stoichiometric compound layer and manufacturing method thereof
TOSHIBA KK93 citations98
US5696389ADec 9, 1997
Light-emitting semiconductor device
TOSHIBA KK623 citations98
US5153889AOct 6, 1992
Semiconductor light emitting device
TOSHIBA KK140 citations98
US7042810B2May 9, 2006
Thermally-assisted magnetic recording head, method of manufacturing the same, and thermally-assisted magnetic recording apparatus
TOSHIBA KK60 citations96
US6185238B1Feb 6, 2001
Nitride compound semiconductor laser and its manufacturing method
TOSHIBA KK80 citations96
US6121638ASep 19, 2000
Multi-layer structured nitride-based semiconductor devices
TOSHIBA KK71 citations96
US6121634ASep 19, 2000
Nitride semiconductor light emitting device and its manufacturing method
TOSHIBA KK72 citations96
US6118801ASep 12, 2000
Gallium nitride-based compound semiconductor laser and method of manufacturing the same
TOSHIBA KK51 citations96
US5987048ANov 16, 1999
Gallium nitride-based compound semiconductor laser and method of manufacturing the same
TOSHIBA KK76 citations96
US5978139ANov 2, 1999
Diffraction grating lens and optical disk recording/reproducing apparatus using the same
TOSHIBA KK88 citations96
US5780873AJul 14, 1998
Semiconductor device capable of easily forming cavity and its manufacturing method
TOSHIBA KK68 citations96
US6611003B1Aug 26, 2003
Light emitting element and method of fabrication thereof
TOSHIBA KK58 citations95
US6252894B1Jun 26, 2001
Semiconductor laser using gallium nitride series compound semiconductor
TOSHIBA KK132 citations95
US5488233AJan 30, 1996
Semiconductor light-emitting device with compound semiconductor layer
TOSHIBA KK66 citations95
US7525127B2Apr 28, 2009
Semiconductor light emitting device
TOSHIBA KK28 citations93
US6400742B1Jun 4, 2002
Semiconductor laser and method of fabricating same
TOSHIBA KK41 citations93
US6359919B1Mar 19, 2002
Gallium nitride-based compound semiconductor laser and method of manufacturing the same
TOSHIBA KK35 citations93
US5972730AOct 26, 1999
Nitride based compound semiconductor light emitting device and method for producing the same
TOSHIBA KK41 citations93
US5966396AOct 12, 1999
Gallium nitride-based compound semiconductor laser and method of manufacturing the same
TOSHIBA KK40 citations93
US5786603AJul 28, 1998
Multilayer structured semiconductor devices
TOSHIBA KK40 citations93
US5343486AAug 30, 1994
Semiconductor laser device
TOSHIBA KK27 citations93
US5321712AJun 14, 1994
Semiconductor light-emitting device having a cladding layer composed of an InGaAlp-based compound
TOSHIBA KK21 citations93
US5585649ADec 17, 1996
Compound semiconductor devices and methods of making compound semiconductor devices
TOSHIBA KK44 citations92
US5406574AApr 11, 1995
Semiconductor laser device
TOSHIBA KK28 citations92
US5282218AJan 25, 1994
Semiconductor laser device
TOSHIBA KK33 citations92
US5113469AMay 12, 1992
Optical wavelength-converting device for guided-wave second-harmonic generation in cerenkov radiation mode
TOSHIBA KK23 citations92
US5065404ANov 12, 1991
Transverse-mode oscillation semiconductor laser device
TOSHIBA KK25 citations92
US4893313AJan 9, 1990
Semiconductor laser device which has a double-hetero structure having an optimal layer thickness
TOSHIBA KK23 citations92
US6835963B2Dec 28, 2004
Light-emitting element and method of fabrication thereof
TOSHIBA KK18 citations83
US7781958B2Aug 24, 2010
Light emitting device
TOSHIBA KK10 citations82
US5058120AOct 15, 1991
Visible light emitting semiconductor laser with inverse mesa-shaped groove section
TOSHIBA KK21 citations82
US5036521AJul 30, 1991
Semiconductor laser device
TOSHIBA KK17 citations82
US4987096AJan 22, 1991
Manufacturing method of semiconductor laser with non-absorbing mirror structure
TOSHIBA KK20 citations82
US7068911B2Jun 27, 2006
Optical probe and optical pick-up apparatus
TOSHIBA KK7 citations74
US6885808B2Apr 26, 2005
Optical probe and optical pick-up apparatus
TOSHIBA KK8 citations74
US6687277B2Feb 3, 2004
Semiconductor laser device
TOSHIBA KK7 citations74
US6587494B2Jul 1, 2003
Semiconductor laser device
TOSHIBA KK9 citations74
US5389800AFeb 14, 1995
Semiconductor light-emitting device
TOSHIBA KK9 citations74
US5377291ADec 27, 1994
Wavelength converting optical device
TOSHIBA KK14 citations74
US5305341AApr 19, 1994
Semiconductor laser whose active layer has an ordered structure
TOSHIBA KK12 citations74
US5202895AApr 13, 1993
Semiconductor device having an active layer made of ingaalp material
TOSHIBA KK12 citations74
US5181218AJan 19, 1993
Manufacturing method of semiconductor laser with non-absorbing mirror structure
TOSHIBA KK16 citations74
US5138404AAug 11, 1992
Semiconductor device for passing current between a GaAs layer and an InGaAlP layer
TOSHIBA KK10 citations74
NISSIN KOGYO KK
2 patentsHATTORI YASUSHI
1 patentShowing the top 50 of 55 patents by PatentIndex Score.