Inventor
CHINONE NAOKI
JP45 patents
Patents
45 patentsUS5119393AJun 2, 1992
Semiconductor laser device capable of controlling wavelength shift
HITACHI LTD81 citations96
US4885753ADec 5, 1989
Semiconductor laser device of variable wavelength type
HITACHI LTD69 citations96
US5179567AJan 12, 1993
Semiconductor laser device, method of fabricating the same and optical system of utilizing the same
HITACHI LTD21 citations93
US4905060AFeb 27, 1990
Light emitting device with disordered region
HITACHI LTD45 citations93
US4894835AJan 16, 1990
Surface emitting type semiconductor laser
HITACHI LTD40 citations93
US4873691AOct 10, 1989
Wavelength-tunable semiconductor laser
HITACHI LTD46 citations93
US4813757AMar 21, 1989
Optical switch including bypass waveguide
HITACHI LTD42 citations93
US4737003AApr 12, 1988
Optical switching device utilizing multiple quantum well structures between intersecting waveguides
HITACHI LTD42 citations93
US4601535AJul 22, 1986
Optical coupling system with intermediate coupling medium
HITACHI LTD38 citations93
US5177758AJan 5, 1993
Semiconductor laser device with plural active layers and changing optical properties
HITACHI LTD54 citations92
US5132981AJul 21, 1992
Semiconductor optical device
HITACHI LTD31 citations92
US4835578AMay 30, 1989
Semiconductor device having a quantum wire and a method of producing the same
HITACHI LTD26 citations92
US4775980AOct 4, 1988
Distributed-feedback semiconductor laser device
HITACHI LTD28 citations92
US4748132AMay 31, 1988
Micro fabrication process for semiconductor structure using coherent electron beams
HITACHI LTD31 citations92
US4665528AMay 12, 1987
Distributed-feedback semiconductor laser device
HITACHI LTD25 citations92
US4599729AJul 8, 1986
Semiconductor laser device having facets provided with dielectric layers
HITACHI LTD28 citations92
US4506366AMar 19, 1985
Semiconductor laser device
HITACHI LTD29 citations92
US5173909ADec 22, 1992
Wavelength tunable laser diode
HITACHI LTD37 citations89
US5042049AAug 20, 1991
Semiconductor optical device
HITACHI LTD19 citations82
US4861130AAug 29, 1989
Optical modulating device utilizing polariton substance
HITACHI LTD23 citations82
US4432091AFeb 14, 1984
Semiconductor laser device
HITACHI LTD20 citations82
US4161701AJul 17, 1979
Semiconductor laser
HITACHI LTD27 citations82
US4142160AFeb 27, 1979
Hetero-structure injection laser
HITACHI LTD30 citations82
US4881235ANov 14, 1989
Semiconductor laser having a multiple quantum well structure doped with impurities
HITACHI LTD21 citations81
US4740976AApr 26, 1988
Semiconductor laser device
HITACHI LTD22 citations80
US5073892ADec 17, 1991
Semiconductor laser device
HITACHI LTD11 citations74
US4752933AJun 21, 1988
Semiconductor laser
HITACHI LTD6 citations74
US4752934AJun 21, 1988
Multi quantum well laser with parallel injection
HITACHI LTD13 citations74
US4602371AJul 22, 1986
High output semiconductor laser device utilizing a mesa-stripe optical confinement region
HITACHI LTD11 citations74
US5136601AAug 4, 1992
Semiconductor laser
HITACHI LTD8 citations73
US4712218ADec 8, 1987
Method of and apparatus for driving semiconductor laser
HITACHI LTD16 citations73
US4630279ADec 16, 1986
Buried heterojunction laser
HITACHI LTD11 citations73
US4121179AOct 17, 1978
Semiconductor injection laser
HITACHI LTD15 citations73
US4881238ANov 14, 1989
Semiconductor laser having quantum well active region doped with impurities
HITACHI LTD17 citations72
US4827483AMay 2, 1989
Semiconductor laser device and method of fabricating the same
HITACHI LTD19 citations72
US4811354AMar 7, 1989
Semiconductor laser
HITACHI LTD8 citations72
US4780879AOct 25, 1988
Semiconductor laser device having little astigmatism
HITACHI LTD14 citations72
US4315226AFeb 9, 1982
Semiconductor laser device
HITACHI LTD17 citations72
US5170404ADec 8, 1992
Semiconductor laser device suitable for optical communications systems drive
HITACHI LTD5 citations63
US4797891AJan 10, 1989
Semiconductor laser
HITACHI LTD6 citations62
US4759030AJul 19, 1988
Semiconductor laser
HITACHI LTD6 citations62
US4563764AJan 7, 1986
Semiconductor laser device
HITACHI LTD3 citations62
US4329658AMay 11, 1982
Semiconductor laser device
HITACHI LTD3 citations62
US4841536AJun 20, 1989
Semiconductor laser devices
HITACHI LTD6 citations60
US4821275AApr 11, 1989
Laser diode
HITACHI LTD1 citations52