Inventor
ARAKAWA YASUHIKO
JP33 patents
⚠️ This page may combine multiple inventors who share the name “ARAKAWA YASUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
12 patentsUS7522647B2Apr 21, 2009
Semiconductor laser and method of fabricating the same
FUJITSU LTD28 citations92
US7015498B2Mar 21, 2006
Quantum optical semiconductor device
FUJITSU LTD26 citations91
US7829880B2Nov 9, 2010
Quantum dot semiconductor device
FUJITSU LTD8 citations83
US7738523B2Jun 15, 2010
Optical semiconductor device having diffraction grating
FUJITSU LTD7 citations74
US8906721B2Dec 9, 2014
Semiconductor light emitting device and method for manufacturing the same
FUJITSU LTD4 citations73
US7835418B2Nov 16, 2010
Optical semiconductor device having diffraction grating disposed on both sides of waveguide and its manufacture method
FUJITSU LTD4 citations63
US7700937B2Apr 20, 2010
Single-photon generating device, single-photon detecting device, and optical quantum gate
FUJITSU LTD2 citations63
US7768692B2Aug 3, 2010
Single-photon generator
FUJITSU LTD3 citations62
US7573060B2Aug 11, 2009
Optical semiconductor device having active layer of p-type quantum dot structure and its manufacture method
FUJITSU LTD2 citations61
US8802468B2Aug 12, 2014
Semiconductor light emitting device and fabrication method for semiconductor light emitting device
FUJITSU LTD0 citations51
US7892871B2Feb 22, 2011
Method of manufacturing semiconductor device with quantum dots formed by self-assembled growth
FUJITSU LTD0 citations51
US9871347B2Jan 16, 2018
Semiconductor light emitting device and optical transceiver
FUJITSU LTD1 citations49
SHARP KK
10 patentsUS9871147B2Jan 16, 2018
Photodetector
SHARP KK3 citations70
US9601643B2Mar 21, 2017
Photoelectric conversion element
SHARP KK1 citations52
US10038306B2Jul 31, 2018
Nitride semiconductor device and quantum cascade laser using the same
SHARP KK1 citations51
US9583656B2Feb 28, 2017
Photoelectric conversion element
SHARP KK1 citations51
US10636833B2Apr 28, 2020
Quantum dot infrared detector
SHARP KK0 citations41
US10181539B2Jan 15, 2019
Photoelectric conversion element and photoelectric conversion device including the same
SHARP KK0 citations41
US10866143B2Dec 15, 2020
Infrared photodetection system
SHARP KK0 citations40
US10811554B2Oct 20, 2020
Infrared photodetector
SHARP KK0 citations40
US10340662B2Jul 2, 2019
Quantum cascade laser
SHARP KK0 citations40
US10340663B2Jul 2, 2019
Quantum cascade laser
SHARP KK0 citations40
QD LASER INC
4 patentsUS10088682B2Oct 2, 2018
Image projection device and projection device
QD LASER INC2 citations73
US10444519B2Oct 15, 2019
Image projection device
QD LASER INC1 citations62
US10627631B2Apr 21, 2020
Image projection device and projection device
QD LASER INC0 citations52
US10659743B2May 19, 2020
Image projection device
QD LASER INC0 citations39
HATORI NOBUAKI
3 patentsUS8891578B2Nov 18, 2014
Optical semiconductor device having diffraction grating disposed on both sides of waveguide and its manufacture method
HATORI NOBUAKI2 citations61
US8483252B2Jul 9, 2013
Semiconductor light emitting device and fabrication method for semiconductor light emitting device
HATORI NOBUAKI4 citations60
US8232125B2Jul 31, 2012
Optical semiconductor device having active layer of p-type quantum dot structure and its manufacture method
HATORI NOBUAKI4 citations60