Inventor
MIYAZAWA SEIICHI
JP17 patents
⚠️ This page may combine multiple inventors who share the name “MIYAZAWA SEIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
16 patentsUS6288410B1Sep 11, 2001
Semiconductor optical device with tensile-strained quantum well structure
CANON KK72 citations96
US5663592ASep 2, 1997
Semiconductor device having diffraction grating
CANON KK61 citations95
US5946336AAug 31, 1999
Optical semiconductor apparatus, fabrication method thereof, modulation method therefor, light source apparatus and optical communication system or method using the same
CANON KK43 citations92
US4971415ANov 20, 1990
Multibeam emitting device
CANON KK26 citations92
US4799229AJan 17, 1989
Semiconductor laser array
CANON KK26 citations92
US4794609ADec 27, 1988
Semiconductor laser provided with a plurality of lasers in the form of an array
CANON KK38 citations92
US4794611ADec 27, 1988
Semiconductor laser having superlattice structure
CANON KK29 citations92
US4932033AJun 5, 1990
Semiconductor laser having a lateral p-n junction utilizing inclined surface and method of manufacturing same
CANON KK37 citations91
US11340553B2May 24, 2022
Process cartridge and electrophotographic apparatus
CANON KK18 citations83
US4829534AMay 9, 1989
Semiconductor laser device having a semiconductor region for creating a depletion layer in a laser active layer for controlling current flow therethrough
CANON KK10 citations74
US4796067AJan 3, 1989
Semiconductor device having a superlattice structure
CANON KK9 citations74
US5881086AMar 9, 1999
Optical semiconductor device with quantum wires, fabrication method thereof, and light source apparatus, and optical communication system using the same
CANON KK14 citations73
US5115443AMay 19, 1992
Semiconductor laser apparatus
CANON KK17 citations73
US4706254ANov 10, 1987
Semiconductor device and its fabrication
CANON KK13 citations73
US5571748ANov 5, 1996
Methods for producing compound semiconductor devices
CANON KK6 citations63
US5585306ADec 17, 1996
Methods for producing compound semiconductor devices
CANON KK5 citations62