Inventor
MATSUMOTO KEISUKE
JP66 patents
⚠️ This page may combine multiple inventors who share the name “MATSUMOTO KEISUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
16 patentsUS6516017B1Feb 4, 2003
Multiwavelength semiconductor laser device with single modulator and drive method therefor
MITSUBISHI ELECTRIC CORP71 citations96
US5568311AOct 22, 1996
Wavelength tunable semiconductor laser device
MITSUBISHI ELECTRIC CORP91 citations96
US6542525B1Apr 1, 2003
Light modulator and integrated semiconductor laser-light modulator
MITSUBISHI ELECTRIC CORP26 citations93
US5978402ANov 2, 1999
Semiconductor laser device
MITSUBISHI ELECTRIC CORP42 citations93
US7266266B2Sep 4, 2007
Optical functional device based on Mach-Zehnder interferometer
MITSUBISHI ELECTRIC CORP8 citations74
US6277663B1Aug 21, 2001
Method of producing semiconductor laser diode
MITSUBISHI ELECTRIC CORP9 citations74
US6021148AFeb 1, 2000
Semiconductor laser device
MITSUBISHI ELECTRIC CORP8 citations74
US11211768B2Dec 28, 2021
Semiconductor optical integrated device
MITSUBISHI ELECTRIC CORP2 citations69
US7773652B2Aug 10, 2010
Gain-coupled distributed feedback semiconductor laser having an improved diffraction grating
MITSUBISHI ELECTRIC CORP2 citations63
US6606336B2Aug 12, 2003
Photonic semiconductor device
MITSUBISHI ELECTRIC CORP5 citations63
US9042008B2May 26, 2015
Optical semiconductor device
MITSUBISHI ELECTRIC CORP2 citations61
US11342724B2May 24, 2022
Semiconductor optical integrated device
MITSUBISHI ELECTRIC CORP0 citations52
US7365904B2Apr 29, 2008
Optical wavelength converter
MITSUBISHI ELECTRIC CORP1 citations52
US9147997B2Sep 29, 2015
Optical semiconductor device
MITSUBISHI ELECTRIC CORP0 citations51
US11722224B2Aug 8, 2023
Optical semiconductor device
MITSUBISHI ELECTRIC CORP0 citations50
US12489275B2Dec 2, 2025
Method for manufacturing optical semiconductor device
MITSUBISHI ELECTRIC CORP0 citations49
HITACHI LTD
6 patentsUS10769052B2Sep 8, 2020
Application arrangement method and system
HITACHI LTD8 citations83
US10514947B2Dec 24, 2019
Container management apparatus, container management method, and nonvolatile recording medium
HITACHI LTD2 citations67
US9256372B2Feb 9, 2016
Storage device and method of controlling storage device
HITACHI LTD2 citations63
US12105824B2Oct 1, 2024
Information processing system for managing data storage and retrieval and method
HITACHI LTD0 citations62
US11704426B1Jul 18, 2023
Information processing system and information processing method
HITACHI LTD0 citations62
US11797402B1Oct 24, 2023
Storage system and control method
HITACHI LTD1 citations53
MATSUMOTO KEISUKE
5 patentsUS8613160B2Dec 24, 2013
Door opening and closing apparatus for vehicle
MATSUMOTO KEISUKE12 citations82
US8442333B2May 14, 2013
Parallel processing image encoding device with variable length coding
MATSUMOTO KEISUKE6 citations70
US8319916B2Nov 27, 2012
Method of producing organic nanoparticles, organic nanoparticles thus obtained, inkjet ink for color filter, colored photosensitive resin composition and photosensitive resin transfer material, containing the same, and color filter, liquid crystal display device and CCD device, prepared using the same
MATSUMOTO KEISUKE7 citations70
US8772618B2Jul 8, 2014
Mixing automatic accompaniment input and musical device input during a loop recording
MATSUMOTO KEISUKE2 citations62
US8697464B2Apr 15, 2014
Method of manufacturing optical semiconductor device
MATSUMOTO KEISUKE0 citations51
RENESAS ELECTRONICS CORP
5 patentsUS11190805B2Nov 30, 2021
Data processing device and data processing method
RENESAS ELECTRONICS CORP0 citations62
US11360529B2Jun 14, 2022
Signal processing system, signal processing circuit, and reset control method
RENESAS ELECTRONICS CORP0 citations59
US10725512B2Jul 28, 2020
Signal processing system, signal processing circuit, and reset control method
RENESAS ELECTRONICS CORP1 citations59
US10977834B2Apr 13, 2021
Semiconductor device and method for image processing and image compression using the semiconductor device
RENESAS ELECTRONICS CORP0 citations55
US10645420B2May 5, 2020
Data processing device and data processing method
RENESAS ELECTRONICS CORP0 citations52
FUJI PHOTO FILM CO LTD
4 patentsUS5665528ASep 9, 1997
Silver halide photographic material containing dye
FUJI PHOTO FILM CO LTD4 citations63
US5609999AMar 11, 1997
Silver halide color photographic material
FUJI PHOTO FILM CO LTD5 citations63
US6337176B1Jan 8, 2002
Silver halide color photographic lightsensitive material
FUJI PHOTO FILM CO LTD1 citations52
US6599689B2Jul 29, 2003
Silver halide color negative photographic lightsensitive material and image processing method using the same
FUJI PHOTO FILM CO LTD0 citations51
NISSAN MOTOR
3 patentsYAKULT HONSHA KK
2 patentsISHIMURA EITARO
2 patentsTAKAYANAGI SHINSUKE
1 patentKOGANEI LTD
1 patentMEC CO LTD
1 patentAISIN SEIKI
1 patentAISIN CORP
1 patentTOYOTA MOTOR CO LTD
1 patentDAIKIN IND LTD
1 patentShowing the top 50 of 66 patents by PatentIndex Score.