Inventor
TAKIGUCHI HARUHISA
JP56 patents
⚠️ This page may combine multiple inventors who share the name “TAKIGUCHI HARUHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
49 patentsUS5403916AApr 4, 1995
Method for producing a light emitting diode having transparent substrate
SHARP KK191 citations99
US4806454AFeb 21, 1989
Method for the formation of a diffraction grating
SHARP KK58 citations96
US5654557AAug 5, 1997
Quantum wire structure and a method for producing the same
SHARP KK36 citations93
US4820019AApr 11, 1989
Optical device
SHARP KK41 citations93
US4658403AApr 14, 1987
Optical element in semiconductor laser device having a diffraction grating and improved resonance characteristics
SHARP KK53 citations93
US5457561AOct 10, 1995
System for transmitting a beam in the air
SHARP KK48 citations92
US5292685AMar 8, 1994
Method for producing a distributed feedback semiconductor laser device
SHARP KK29 citations92
US6426522B1Jul 30, 2002
Doped semiconductor material, a method of manufacturing the doped semiconductor material, and a semiconductor device
SHARP KK37 citations91
US5903585AMay 11, 1999
Optoelectronic devices
SHARP KK32 citations91
US5070510ADec 3, 1991
Semiconductor laser device
SHARP KK50 citations91
US4975922ADec 4, 1990
Multi-layered dielectric film
SHARP KK30 citations91
US5473173ADec 5, 1995
Quantum well structure having differentially strained quantum well layers
SHARP KK24 citations87
US7349154B2Mar 25, 2008
Reflection type screen
SHARP KK41 citations86
US5031991AJul 16, 1991
Optical coupling circuit element
SHARP KK19 citations82
US4997747AMar 5, 1991
Method for the formation of a diffraction grating
SHARP KK18 citations82
US4692206ASep 8, 1987
Method for producing a semiconductor laser device having a buried heterostructure
SHARP KK18 citations82
US5477319ADec 19, 1995
Optical heterodyne detection method and apparatus utilizing a scattered reference beam
SHARP KK8 citations74
US5361271ANov 1, 1994
Semiconductor laser
SHARP KK15 citations74
US5280493AJan 18, 1994
Quantum wire laser
SHARP KK7 citations74
US4908830AMar 13, 1990
Buried type semiconductor laser device
SHARP KK11 citations74
US4852116AJul 25, 1989
Semiconductor laser device
SHARP KK16 citations74
US4806778AFeb 21, 1989
Micro-displacement measuring apparatus using a semiconductor laser
SHARP KK13 citations74
US4805183AFeb 14, 1989
Distributed feedback semiconductor laser device
SHARP KK9 citations74
US4799227AJan 17, 1989
Semiconductor laser device having a buried heterostructure
SHARP KK9 citations74
US4771434ASep 13, 1988
Semiconductor laser device with an integrated light-detecting area
SHARP KK9 citations74
US4745615AMay 17, 1988
Semiconductor laser device with a diffraction grating
SHARP KK9 citations74
US4730329AMar 8, 1988
Semiconductor laser device
SHARP KK8 citations74
US4716570ADec 29, 1987
Distributed feedback semiconductor laser device
SHARP KK7 citations74
US4712219ADec 8, 1987
Visible double heterostructure-semiconductor laser
SHARP KK15 citations74
US4679200AJul 7, 1987
Semiconductor laser
SHARP KK11 citations74
US4660983AApr 28, 1987
Apparatus for measuring reflectivities of resonator facets of semiconductor laser
SHARP KK7 citations74
US4655597AApr 7, 1987
Micro-displacement measuring apparatus using a semiconductor laser
SHARP KK7 citations74
US5345460ASep 6, 1994
Semiconductor laser device with window regions
SHARP KK13 citations73
US5335241AAug 2, 1994
Buried stripe type semiconductor laser device
SHARP KK13 citations73
US5303255AApr 12, 1994
Distributed feedback semiconductor laser device and a method of producing the same
SHARP KK12 citations73
US4858215AAug 15, 1989
Integrated optical disc pickup that allows variations in the wavelength of the laser beam
SHARP KK15 citations73
US6653248B2Nov 25, 2003
Doped semiconductor material, a method of manufacturing the doped semiconductor material, and a semiconductor device
SHARP KK12 citations72
US9293647B2Mar 22, 2016
Nitride semiconductor light-emitting device and method of manufacturing the same
SHARP KK4 citations70
US5309472AMay 3, 1994
Semiconductor device and a method for producing the same
SHARP KK2 citations63
US5182758AJan 26, 1993
Periodic gain-type semiconductor laser device
SHARP KK6 citations63
US4941148AJul 10, 1990
Semiconductor laser element with a single longitudinal oscillation mode
SHARP KK5 citations63
US4910744AMar 20, 1990
Buried heterostructure semiconductor laser device
SHARP KK4 citations63
US4908831AMar 13, 1990
Buried type semiconductor laser device
SHARP KK2 citations63
US4901328AFeb 13, 1990
Semiconductor VSIS laser
SHARP KK5 citations63
US4872174AOct 3, 1989
Semiconductor laser device having a grating structure
SHARP KK4 citations63
US4849985AJul 18, 1989
Distributed feedback semiconductor laser device
SHARP KK2 citations63
US4841534AJun 20, 1989
Buried type semiconductor laser device
SHARP KK1 citations63
US4839900AJun 13, 1989
Buried type semiconductor laser device
SHARP KK1 citations63
US4819240AApr 4, 1989
Light modulator
SHARP KK5 citations63
ARAKI MASAHIRO
1 patentShowing the top 50 of 56 patents by PatentIndex Score.