Eiji KUMAGAI

Person

Fukushima, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Control device to boot up power source
- Patent number 9,991,702
- Issue date Jun 5, 2018
- Murata Manufacturing Co., Ltd.
- Eiji Kumagai
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Battery monitor circuit, storage apparatus, electronic apparatus, e...
- Patent number 9,966,759
- Issue date May 8, 2018
- Murata Manufacturing Co., Ltd.
- Eiji Kumagai
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Electricity storage device, electricity storage system, and method...
- Patent number 9,929,559
- Issue date Mar 27, 2018
- Murata Manufacturing Co., Ltd.
- Raghunath Bellala
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Storage system and output controller
- Patent number 9,698,449
- Issue date Jul 4, 2017
- Sony Corporation
- Eiji Kumagai
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control device, electric storage system, electronic device, electri...
- Patent number 9,608,464
- Issue date Mar 28, 2017
- Sony Corporation
- Eiji Kumagai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric power supplying apparatus, electric power supplying method...
- Patent number 9,608,451
- Issue date Mar 28, 2017
- Sony Corporation
- Naoyuki Sugeno
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Storage system, electronic device, electric vehicle and power system
- Patent number 9,419,458
- Issue date Aug 16, 2016
- Sony Corporation
- Eiji Kumagai
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Power supply apparatus and power supply switching method
- Patent number 9,270,135
- Issue date Feb 23, 2016
- Sony Corporation
- Eiji Kumagai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Battery monitor circuit, storage apparatus, electronic apparatus, e...
- Patent number 9,178,366
- Issue date Nov 3, 2015
- Sony Corporation
- Eiji Kumagai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power storage apparatus, connection apparatus, power storage system...
- Patent number 9,034,511
- Issue date May 19, 2015
- Sony Corporation
- Tatsuya Adachi
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Electric circuit, charge control device, charge system, and control...
- Patent number 9,018,911
- Issue date Apr 28, 2015
- Sony Corporation
- Eiji Kumagai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-battery pack battery system with direct communication between...
- Patent number 8,907,624
- Issue date Dec 9, 2014
- Sony Corporation
- Eiji Kumagai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Optical recording apparatus, and method for controlling laser power...
- Patent number 7,379,406
- Issue date May 27, 2008
- Sony Corporation
- Kenji Nagashima
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical-disc driving apparatus, optical-disc driving method, storag...
- Patent number 7,274,631
- Issue date Sep 25, 2007
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Data recording device, data reproducing device, and optical disc
- Patent number 6,819,642
- Issue date Nov 16, 2004
- Sony Corporation
- Satoshi Kumai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical drive apparatus for use with different recording media, tra...
- Patent number 6,757,227
- Issue date Jun 29, 2004
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk recording medium and disk drive apparatus
- Patent number 6,714,509
- Issue date Mar 30, 2004
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc drive apparatus and method for generating wobble information
- Patent number 6,594,210
- Issue date Jul 15, 2003
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and optical disc discriminating method
- Patent number 6,288,987
- Issue date Sep 11, 2001
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and optical disc discriminating method
- Patent number 6,288,988
- Issue date Sep 11, 2001
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and optical disc discriminating method
- Patent number 6,252,834
- Issue date Jun 26, 2001
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and optical disc discriminating method
- Patent number 6,229,772
- Issue date May 8, 2001
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and optical disc discriminating method
- Patent number 6,147,941
- Issue date Nov 14, 2000
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc reproduction method and optical disc reproduction appa...
- Patent number 6,034,937
- Issue date Mar 7, 2000
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc reproduction apparatus
- Patent number 6,034,934
- Issue date Mar 7, 2000
- Sony Corporation
- Kunihiko Miyake
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and optical disc discriminating method
- Patent number 6,005,832
- Issue date Dec 21, 1999
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk reproducing apparatus having a cosine equalizer with b...
- Patent number 5,703,852
- Issue date Dec 30, 1997
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc apparatus with selectively shiftable seek operation ca...
- Patent number 5,636,196
- Issue date Jun 3, 1997
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for recording and reproducing information on an optical d...
- Patent number 5,003,523
- Issue date Mar 26, 1991
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
CONTROL DEVICE, ELECTRIC STORAGE SYSTEM, ELECTRONIC DEVICE, ELECTRI...
- Publication number 20170163034
- Publication date Jun 8, 2017
- SONY CORPORATION
- Eiji KUMAGAI
- B60 - VEHICLES IN GENERAL
Information Patent Application
ELECTRICITY STORAGE DEVICE, ELECTRICITY STORAGE SYSTEM, AND METHOD...
- Publication number 20160164282
- Publication date Jun 9, 2016
- SONY CORPORATION
- Raghunath BELLALA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BATTERY MONITOR CIRCUIT, STORAGE APPARATUS, ELECTRONIC APPARATUS, E...
- Publication number 20160072282
- Publication date Mar 10, 2016
- SONY CORPORATION
- Eiji Kumagai
- B60 - VEHICLES IN GENERAL
Information Patent Application
POWER STORAGE DEVICE, POWER STORAGE SYSTEM, AND CONTROL METHOD OF P...
- Publication number 20160049813
- Publication date Feb 18, 2016
- SONY CORPORATION
- Shuichi TAKIZAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY APPARATUS AND POWER SUPPLY SWITCHING METHOD
- Publication number 20130320927
- Publication date Dec 5, 2013
- SONY CORPORATION
- Eiji Kumagai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRIC POWER SUPPLYING APPARATUS, ELECTRIC POWER SUPPLYING METHOD...
- Publication number 20130264865
- Publication date Oct 10, 2013
- SONY CORPORATION
- Naoyuki Sugeno
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
STORAGE SYSTEM, ELECTRONIC DEVICE, ELECTRIC VEHICLE AND POWER SYSTEM
- Publication number 20130249446
- Publication date Sep 26, 2013
- SONY CORPORATION
- Eiji Kumagai
- B60 - VEHICLES IN GENERAL
Information Patent Application
STORAGE SYSTEM AND OUTPUT CONTROLLER
- Publication number 20130202930
- Publication date Aug 8, 2013
- SONY CORPORATION
- Eiji Kumagai
- B60 - VEHICLES IN GENERAL
Information Patent Application
CONTROL DEVICE, ELECTRIC STORAGE SYSTEM, ELECTRONIC DEVICE, ELECTRI...
- Publication number 20130009466
- Publication date Jan 10, 2013
- Sony Engergy Devices Corporation
- Eiji KUMAGAI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BATTERY MONITOR CIRCUIT, STORAGE APPARATUS, ELECTRONIC APPARATUS, E...
- Publication number 20130002030
- Publication date Jan 3, 2013
- SONY CORPORATION
- Eiji Kumagai
- B60 - VEHICLES IN GENERAL
Information Patent Application
POWER STORAGE APPARATUS, CONNECTION APPARATUS, POWER STORAGE SYSTEM...
- Publication number 20120150375
- Publication date Jun 14, 2012
- SONY CORPORATION
- Tatsuya Adachi
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
ELECTRIC CIRCUIT, CHARGE CONTROL DEVICE, CHARGE SYSTEM, AND CONTROL...
- Publication number 20120056595
- Publication date Mar 8, 2012
- SONY CORPORATION
- Eiji Kumagai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BATTERY SYSTEM
- Publication number 20110300415
- Publication date Dec 8, 2011
- SONY CORPORATION
- Eiji Kumagai
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Optical-disc driving apparatus, optical-disc driving method, storag...
- Publication number 20050052966
- Publication date Mar 10, 2005
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Application
Optical recording apparatus, and a method for controlling laser pow...
- Publication number 20020071366
- Publication date Jun 13, 2002
- Kenji Nagashima
- G11 - INFORMATION STORAGE
Information Patent Application
Disk recording medium and disk drive apparatus
- Publication number 20020048241
- Publication date Apr 25, 2002
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Application
Recording apparatus, recording medium, reading apparatus, and recor...
- Publication number 20020021637
- Publication date Feb 21, 2002
- Sony Corporation
- Michihiko Iida
- G11 - INFORMATION STORAGE
Information Patent Application
Disc drive apparatus and method for generating wobble information
- Publication number 20020018411
- Publication date Feb 14, 2002
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Application
Optical recording/reproducing apparatus, optical head apparatus, op...
- Publication number 20020009024
- Publication date Jan 24, 2002
- Sony Corporation
- Eiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Application
Data recording device, data reproducing device, and optical disc
- Publication number 20010024410
- Publication date Sep 27, 2001
- Satoshi Kumai
- G11 - INFORMATION STORAGE

Eiji KUMAGAI

Person

Patents Grantslast 30 patents

Control device to boot up power source

Battery monitor circuit, storage apparatus, electronic apparatus, e...

Electricity storage device, electricity storage system, and method...

Storage system and output controller

Control device, electric storage system, electronic device, electri...

Electric power supplying apparatus, electric power supplying method...

Storage system, electronic device, electric vehicle and power system

Power supply apparatus and power supply switching method

Battery monitor circuit, storage apparatus, electronic apparatus, e...

Power storage apparatus, connection apparatus, power storage system...

Electric circuit, charge control device, charge system, and control...

Multi-battery pack battery system with direct communication between...

Optical recording apparatus, and method for controlling laser power...

Optical-disc driving apparatus, optical-disc driving method, storag...

Data recording device, data reproducing device, and optical disc

Optical drive apparatus for use with different recording media, tra...

Disk recording medium and disk drive apparatus

Disc drive apparatus and method for generating wobble information

Optical disc device and optical disc discriminating method

Optical disc device and optical disc discriminating method

Optical disc device and optical disc discriminating method

Optical disc device and optical disc discriminating method

Optical disc device and optical disc discriminating method

Optical disc reproduction method and optical disc reproduction appa...

Disc reproduction apparatus

Optical disc device and optical disc discriminating method

Optical disk reproducing apparatus having a cosine equalizer with b...

Optical disc apparatus with selectively shiftable seek operation ca...

Apparatus for recording and reproducing information on an optical d...

Patents Applicationslast 30 patents

CONTROL DEVICE, ELECTRIC STORAGE SYSTEM, ELECTRONIC DEVICE, ELECTRI...

ELECTRICITY STORAGE DEVICE, ELECTRICITY STORAGE SYSTEM, AND METHOD...

BATTERY MONITOR CIRCUIT, STORAGE APPARATUS, ELECTRONIC APPARATUS, E...

POWER STORAGE DEVICE, POWER STORAGE SYSTEM, AND CONTROL METHOD OF P...

POWER SUPPLY APPARATUS AND POWER SUPPLY SWITCHING METHOD

ELECTRIC POWER SUPPLYING APPARATUS, ELECTRIC POWER SUPPLYING METHOD...

STORAGE SYSTEM, ELECTRONIC DEVICE, ELECTRIC VEHICLE AND POWER SYSTEM

STORAGE SYSTEM AND OUTPUT CONTROLLER

CONTROL DEVICE, ELECTRIC STORAGE SYSTEM, ELECTRONIC DEVICE, ELECTRI...

BATTERY MONITOR CIRCUIT, STORAGE APPARATUS, ELECTRONIC APPARATUS, E...

POWER STORAGE APPARATUS, CONNECTION APPARATUS, POWER STORAGE SYSTEM...

ELECTRIC CIRCUIT, CHARGE CONTROL DEVICE, CHARGE SYSTEM, AND CONTROL...

BATTERY SYSTEM

Optical-disc driving apparatus, optical-disc driving method, storag...

Optical recording apparatus, and a method for controlling laser pow...

Disk recording medium and disk drive apparatus

Recording apparatus, recording medium, reading apparatus, and recor...

Disc drive apparatus and method for generating wobble information

Optical recording/reproducing apparatus, optical head apparatus, op...

Data recording device, data reproducing device, and optical disc