Masakazu USHIJIMA

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wireless power transfer system
- Patent number 11,005,300
- Issue date May 11, 2021
- WQC, INC.
- Masakazu Ushijima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Wireless power transfer system
- Patent number 10,547,214
- Issue date Jan 28, 2020
- WQC, Inc.
- Masakazu Ushijima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Wireless power transfer system
- Patent number 10,243,406
- Issue date Mar 26, 2019
- WQC, Inc.
- Masakazu Ushijima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Measurement apparatus, test apparatus, and measurement method
- Patent number 8,102,681
- Issue date Jan 24, 2012
- Masakazu Ushijima
- G01 - MEASURING TESTING
Information Patent Grant
Module for parallel lighting and balancer coil for discharge lamp
- Patent number 7,834,726
- Issue date Nov 16, 2010
- Hong-Fei Chen
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Parallel lighting system for surface light source discharge lamps
- Patent number 7,772,785
- Issue date Aug 10, 2010
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Current balancing circuit
- Patent number 7,605,544
- Issue date Oct 20, 2009
- Greatchip Technology Co., Ltd.
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inverter circuit for discharge lamps for multi-lamp lighting and su...
- Patent number 7,589,478
- Issue date Sep 15, 2009
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Current-mode resonant inverter circuit
- Patent number 7,548,028
- Issue date Jun 16, 2009
- Masakazu Ushijima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current-mode resonant inverter circuit for discharge lamp
- Patent number 7,541,749
- Issue date Jun 2, 2009
- Masakazu Ushijima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Module for parallel lighting and balancer coil for discharge lamp
- Patent number 7,479,740
- Issue date Jan 20, 2009
- Hong-Fei Chen
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Lamp driving circuit for a discharge lamp and a control method thereof
- Patent number 7,474,064
- Issue date Jan 6, 2009
- Greatchip Technology Co., Ltd.
- Ting-Cheng Lai
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Current resonance type inverter circuit and power controlling method
- Patent number 7,453,216
- Issue date Nov 18, 2008
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Parallel lighting system for surface light source discharge lamps
- Patent number 7,391,166
- Issue date Jun 24, 2008
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inverter transformer
- Patent number 7,365,501
- Issue date Apr 29, 2008
- Greatchip Technology Co., Ltd.
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inverter circuit for discharge lamps for multi-lamp lighting and su...
- Patent number 7,282,868
- Issue date Oct 16, 2007
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inverter circuit for surface light source system
- Patent number 7,141,935
- Issue date Nov 28, 2006
- Masakazu Ushijima
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inverter circuit for a discharge tube
- Patent number 6,774,580
- Issue date Aug 10, 2004
- Minebea Co., Ltd.
- Shinichi Suzuki
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Converter for correcting resonance frequency between backlit panel...
- Patent number 6,201,356
- Issue date Mar 13, 2001
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inverter circuit for discharge tube having impedance matching circuit
- Patent number 5,959,412
- Issue date Sep 28, 1999
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inverter circuit for use with discharge tube
- Patent number 5,495,405
- Issue date Feb 27, 1996
- Ushijima; Masakazu
- Tadamasa Fujimura
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
WIRELESS POWER TRANSFER SYSTEM
- Publication number 20200127496
- Publication date Apr 23, 2020
- WQC, INC.
- Masakazu USHIJIMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
WIRELESS POWER TRANSFER SYSTEM
- Publication number 20190214853
- Publication date Jul 11, 2019
- WQC, INC.
- Masakazu USHIJIMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
WIRELESS POWER TRANSFER SYSTEM
- Publication number 20170149285
- Publication date May 25, 2017
- WQC, INC.
- Masakazu USHIJIMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
AUXILIARY POWER GENERATION CIRCUIT
- Publication number 20130170253
- Publication date Jul 4, 2013
- Masakazu Ushijima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MEASUREMENT APPARATUS, TEST APPARATUS, AND MEASUREMENT METHOD
- Publication number 20090219007
- Publication date Sep 3, 2009
- Masakazu Ushijima
- G01 - MEASURING TESTING
Information Patent Application
Module for parallel lighting and balancer coil for discharge lamp
- Publication number 20090153069
- Publication date Jun 18, 2009
- Masakazu Ushijima
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Parallel lighting system for surface light source discharge lamps
- Publication number 20080231212
- Publication date Sep 25, 2008
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
INVERTER TRANSFORMER
- Publication number 20080211615
- Publication date Sep 4, 2008
- Greatchip Technology Co., Ltd.
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method for adjusting mutual inductance and a transformer that imple...
- Publication number 20080068118
- Publication date Mar 20, 2008
- Greatchip Technology Co., Ltd.
- Masakazu Ushijima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Current balancing circuit
- Publication number 20080061710
- Publication date Mar 13, 2008
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Inverter circuit for discharge lamps for multi-lamp lighting and su...
- Publication number 20080036393
- Publication date Feb 14, 2008
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Circuit, Manufacturing Method And Inverter circuit For Discharge Tube
- Publication number 20080030283
- Publication date Feb 7, 2008
- Greatchip Technology Co., Ltd.
- Masakazu Ushijima
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Lamp Driving Circuit for a Discharge Lamp and a Control Method Thereof
- Publication number 20080030150
- Publication date Feb 7, 2008
- Ting-Cheng Lai
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Current-mode resonant inverter circuit
- Publication number 20060193152
- Publication date Aug 31, 2006
- Masakazu Ushijima
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Current resonance type inverter circuit and power controlling method
- Publication number 20060164024
- Publication date Jul 27, 2006
- Masakazu Ushijima
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Current-mode resonant inverter circuit for discharge lamp
- Publication number 20060152174
- Publication date Jul 13, 2006
- Masakazu Ushijima
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Inverter transformer
- Publication number 20060066246
- Publication date Mar 30, 2006
- Greatchip Technology Co., Ltd.
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Module for parallel lighting and balancer coil for discharge lamp
- Publication number 20060055338
- Publication date Mar 16, 2006
- Masakazu Ushijima
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Parallel lighting system for surface light source discharge lamps
- Publication number 20050218827
- Publication date Oct 6, 2005
- Masakazu USHIJIMA
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Inverter circuit for surface light source system
- Publication number 20050088113
- Publication date Apr 28, 2005
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Inverter circuit for discharge lamps for multi-lamp lighting and su...
- Publication number 20040155596
- Publication date Aug 12, 2004
- Masakazu Ushijima
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Inverter circuit for a discharge tube
- Publication number 20030057873
- Publication date Mar 27, 2003
- MINEBEA CO., LTD.
- Shinichi Suzuki
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Masakazu USHIJIMA

Person

Patents Grantslast 30 patents

Wireless power transfer system

Wireless power transfer system

Wireless power transfer system

Measurement apparatus, test apparatus, and measurement method

Module for parallel lighting and balancer coil for discharge lamp

Parallel lighting system for surface light source discharge lamps

Current balancing circuit

Inverter circuit for discharge lamps for multi-lamp lighting and su...

Current-mode resonant inverter circuit

Current-mode resonant inverter circuit for discharge lamp

Module for parallel lighting and balancer coil for discharge lamp

Lamp driving circuit for a discharge lamp and a control method thereof

Current resonance type inverter circuit and power controlling method

Parallel lighting system for surface light source discharge lamps

Inverter transformer

Inverter circuit for discharge lamps for multi-lamp lighting and su...

Inverter circuit for surface light source system

Inverter circuit for a discharge tube

Converter for correcting resonance frequency between backlit panel...

Inverter circuit for discharge tube having impedance matching circuit

Inverter circuit for use with discharge tube

Patents Applicationslast 30 patents

WIRELESS POWER TRANSFER SYSTEM

WIRELESS POWER TRANSFER SYSTEM

WIRELESS POWER TRANSFER SYSTEM

AUXILIARY POWER GENERATION CIRCUIT

MEASUREMENT APPARATUS, TEST APPARATUS, AND MEASUREMENT METHOD

Module for parallel lighting and balancer coil for discharge lamp

Parallel lighting system for surface light source discharge lamps

INVERTER TRANSFORMER

Method for adjusting mutual inductance and a transformer that imple...

Current balancing circuit

Inverter circuit for discharge lamps for multi-lamp lighting and su...

Circuit, Manufacturing Method And Inverter circuit For Discharge Tube

Lamp Driving Circuit for a Discharge Lamp and a Control Method Thereof

Current-mode resonant inverter circuit

Current resonance type inverter circuit and power controlling method

Current-mode resonant inverter circuit for discharge lamp

Inverter transformer

Module for parallel lighting and balancer coil for discharge lamp

Parallel lighting system for surface light source discharge lamps

Inverter circuit for surface light source system

Inverter circuit for discharge lamps for multi-lamp lighting and su...

Inverter circuit for a discharge tube