Inventor
MATSUMOTO TSUTOMU
JP41 patents
⚠️ This page may combine multiple inventors who share the name “MATSUMOTO TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO CHEMICAL CO
8 patentsUS6246452B1Jun 12, 2001
Liquid crystal, liquid crystal mixture having Tau-V min mode driving with negative or zero temperature dependency
SUMITOMO CHEMICAL CO14 citations73
US5779934AJul 14, 1998
Fluorine-containing optically active compound, process for preparing the same and liquid crystal mixture and liquid crystal element comprising the same
SUMITOMO CHEMICAL CO7 citations73
US5658489AAug 19, 1997
Diphenylacetylene compound, process for preparing the same and liquid crystal composition and element comprising the same
SUMITOMO CHEMICAL CO13 citations73
US9227911B2Jan 5, 2016
Method for producing (R)-1, 1, 3-trimethyl-4-aminoindane
SUMITOMO CHEMICAL CO6 citations67
US5762825AJun 9, 1998
Liquid crystal mixture and liquid crystal device comprising the same
SUMITOMO CHEMICAL CO3 citations62
US5659051AAug 19, 1997
Process of producing 2-cyano-4-oxo-4H-benzopyran compounds
SUMITOMO CHEMICAL CO4 citations58
US6063940AMay 16, 2000
Process for preparing 1-bromoalkylbenzene derivatives and intermediates thereof
SUMITOMO CHEMICAL CO0 citations51
US5637736AJun 10, 1997
Process for preparing 1-bromoalkylbenzene derivatives and intermediates thereof
SUMITOMO CHEMICAL CO1 citations51
JTEKT CORP
7 patentsUS9097509B2Aug 4, 2015
Rotation angle sensor
JTEKT CORP4 citations73
US9488233B2Nov 8, 2016
Control device for electromagnetic clutch
JTEKT CORP2 citations63
US7215518B2May 8, 2007
Motor power supply line breaking detection method, motor control apparatus and electric power steering mechanism using the same and computer program thereof
JTEKT CORP6 citations63
US11084375B2Aug 10, 2021
Drive force transmission apparatus
JTEKT CORP0 citations50
US9043089B2May 26, 2015
Actuator control apparatus
JTEKT CORP1 citations49
US10507727B2Dec 17, 2019
Four-wheel-drive vehicle
JTEKT CORP0 citations41
US10480597B2Nov 19, 2019
Clutch apparatus and method for controlling the clutch apparatus
JTEKT CORP0 citations39
HITACHI LTD
5 patentsUS7526645B2Apr 28, 2009
Electronic document authenticity assurance method and electronic document disclosure system
HITACHI LTD31 citations92
US7200682B2Apr 3, 2007
Time stamp generating system
HITACHI LTD21 citations92
US7305558B1Dec 4, 2007
Digital signing method
HITACHI LTD38 citations91
US6816969B2Nov 9, 2004
Digital signature generating method and digital signature verifying method
HITACHI LTD41 citations91
US7770009B2Aug 3, 2010
Digital signing method
HITACHI LTD6 citations72
TOYODA MACHINE WORKS LTD
4 patentsUS5906250AMay 25, 1999
Motor-driven power steering apparatus
TOYODA MACHINE WORKS LTD36 citations88
US6948382B2Sep 27, 2005
Angle detection device and torque sensor incorporating angle detection device
TOYODA MACHINE WORKS LTD10 citations74
US4858134AAug 15, 1989
Device for controlling steering force in power steering apparatus
TOYODA MACHINE WORKS LTD15 citations73
US4637483AJan 20, 1987
Steering characteristic controller for a power steering system
TOYODA MACHINE WORKS LTD7 citations73
FUJITSU LTD
3 patentsUS7424732B2Sep 9, 2008
Card settlement method and system using mobile information terminal
FUJITSU LTD121 citations95
US4141001AFeb 20, 1979
Monitor display control method and apparatus for data input unit
FUJITSU LTD61 citations94
US10270768B2Apr 23, 2019
Communication system, communication method, and communication device
FUJITSU LTD0 citations41
TOYOTA MOTOR CO LTD
3 patentsUS9331854B2May 3, 2016
Message authentication method in communication system and communication system
TOYOTA MOTOR CO LTD20 citations90
US10397244B2Aug 27, 2019
System and method for detecting attack when sensor and traffic information are inconsistent
TOYOTA MOTOR CO LTD1 citations61
US12259830B2Mar 25, 2025
Device and method
TOYOTA MOTOR CO LTD0 citations53