Inventor
KITAMURA MASASHI
JP55 patents
⚠️ This page may combine multiple inventors who share the name “KITAMURA MASASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
18 patentsUS7151335B2Dec 19, 2006
Permanent magnet rotating electric machine and electric car using the same
HITACHI LTD86 citations98
US6849983B2Feb 1, 2005
Rotary machine having bypath magnetic path blocking magnetic barrier
HITACHI LTD56 citations96
US4996496AFeb 26, 1991
Bending magnet
HITACHI LTD138 citations95
US7521832B2Apr 21, 2009
Rotating electric machine having rotor embedded-permanent-magnets with inner-end magnetic gaps and outer-end magnetic gaps, and electric car using the same electric machine
HITACHI LTD28 citations93
US7750529B2Jul 6, 2010
Electric Pump
HITACHI LTD20 citations92
US7453179B2Nov 18, 2008
DC brushless motor for electrical power steering and the production method thereof
HITACHI LTD17 citations92
US6657413B2Dec 2, 2003
Driving equipment for synchronous motors
HITACHI LTD21 citations92
US6806615B2Oct 19, 2004
Core, rotating machine using the core and production method thereof
HITACHI LTD29 citations91
US6794786B2Sep 21, 2004
Electric motor
HITACHI LTD36 citations91
US6876118B2Apr 5, 2005
Abduction-type motor and fabrication method of motor stator thereof
HITACHI LTD17 citations84
US7768158B2Aug 3, 2010
Cylindrical linear motor and a vehicle using the same
HITACHI LTD9 citations82
US7242128B2Jul 10, 2007
DC brushless motor for electrical power steering and the production method thereof
HITACHI LTD8 citations74
US5296812AMar 22, 1994
Superconducting magnet assembly for MRI and MRI diagnostic apparatus
HITACHI LTD9 citations74
US7683516B2Mar 23, 2010
Production method for rotating electric machine and stator coils, and electric power steering motor
HITACHI LTD5 citations63
US5107524AApr 21, 1992
Synchrotron radiation utilizing apparatus and method for utilizing synchrotron radiation
HITACHI LTD4 citations63
US7649299B2Jan 19, 2010
Rotating electrical machine and alternating-current generator
HITACHI LTD3 citations61
US4916404AApr 10, 1990
Electron storage ring
HITACHI LTD5 citations60
US7956509B2Jun 7, 2011
Electric pump
HITACHI LTD0 citations51
MITSUBISHI HEAVY IND LTD
8 patentsUS12038235B2Jul 16, 2024
Heat exchange core and heat exchanger
MITSUBISHI HEAVY IND LTD2 citations71
US10946633B2Mar 16, 2021
Additive manufacturing method
MITSUBISHI HEAVY IND LTD0 citations61
US12345475B2Jul 1, 2025
Heat exchanger core, heat exchanger, and method of producing heat exchanger core
MITSUBISHI HEAVY IND LTD0 citations60
US11344952B2May 31, 2022
Three-dimensional additive manufacturing device, three-dimensional additive manufacturing method, and three-dimensional additive manufactured product
MITSUBISHI HEAVY IND LTD1 citations60
US11420260B2Aug 23, 2022
Method of manufacturing fabricated object
MITSUBISHI HEAVY IND LTD0 citations58
US12241697B2Mar 4, 2025
Heat exchanger, method of producing heat exchanger, and method of confirming blockage of heat exchanger
MITSUBISHI HEAVY IND LTD0 citations50
US11638957B2May 2, 2023
Additive manufactured object
MITSUBISHI HEAVY IND LTD0 citations50
US11590578B2Feb 28, 2023
Internal defect detection system, three-dimensional additive manufacturing device, internal defect detection method, method of manufacturing three-dimensional additive manufactured product, and three-dimensional
MITSUBISHI HEAVY IND LTD0 citations47
OMRON HEALTHCARE CO LTD
7 patentsUSD583060SDec 16, 2008
Sphygmomanometer
OMRON HEALTHCARE CO LTD71 citations98
USD574496SAug 5, 2008
Sphygmomanometer
OMRON HEALTHCARE CO LTD27 citations96
USD574497SAug 5, 2008
Sphygmomanometer
OMRON HEALTHCARE CO LTD22 citations93
USD571013SJun 10, 2008
Sphygmomanometer
OMRON HEALTHCARE CO LTD21 citations93
USD569518SMay 20, 2008
Sphygmomanometer
OMRON HEALTHCARE CO LTD12 citations93
USD561340SFeb 5, 2008
Sphygmomanometer
OMRON HEALTHCARE CO LTD23 citations93
USD541941SMay 1, 2007
Sphygmomanometer
OMRON HEALTHCARE CO LTD31 citations92
COLGATE PALMOLIVE CO
6 patentsUS11903481B2Feb 20, 2024
Plaque detecting device and toothbrush incorporating same
COLGATE PALMOLIVE CO0 citations62
US11246404B2Feb 15, 2022
Plaque detecting device and toothbrush incorporating same
COLGATE PALMOLIVE CO0 citations62
US12257030B2Mar 25, 2025
Electric toothbrush, brush unit, and method for operating an electric toothbrush
COLGATE PALMOLIVE CO0 citations61
US11980517B2May 14, 2024
Electric toothbrush and method for operating an electric toothbrush
COLGATE PALMOLIVE CO0 citations58
US10765323B2Sep 8, 2020
Electric toothbrush, brush unit, and method for operating an electric toothbrush
COLGATE PALMOLIVE CO0 citations51
US10869741B2Dec 22, 2020
Electric toothbrush and method for operating an electric toothbrush
COLGATE PALMOLIVE CO0 citations48
HITACHI IND EQUIPMENT SYS
4 patentsUS7649298B2Jan 19, 2010
Claw teeth type electric rotary machine and manufacturing method for stators
HITACHI IND EQUIPMENT SYS21 citations92
US7714466B2May 11, 2010
Claw-teeth-type rotating electrical machine
HITACHI IND EQUIPMENT SYS8 citations84
US7592734B2Sep 22, 2009
Three-phase permanent magnet brushless motor
HITACHI IND EQUIPMENT SYS7 citations72
USD572660SJul 8, 2008
Claw teeth motor core
HITACHI IND EQUIPMENT SYS5 citations63
TAJIMA FUMIO
2 patentsUSRE44037EMar 5, 2013
Rotating electric machine having rotor embedded-permanent-magnets with inner-end magnetic gaps and outer-end magnetic gaps, and electric car using the same electric machine
TAJIMA FUMIO19 citations92
US8067871B2Nov 29, 2011
Permanent magnet rotating electric machine and electric car using the same
TAJIMA FUMIO15 citations92
MITSUBISHI ELECTRIC CORP
1 patentIWASAKI NORIHISA
1 patentENOMOTO YUJI
1 patentKITAMURA MASASHI
1 patentSEIKO INSTR INC
1 patentShowing the top 50 of 55 patents by PatentIndex Score.