Naoki Ayai

Person

Osaka-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
DC/DC conversion system, electricity storage system, and method for...
- Patent number 11,876,435
- Issue date Jan 16, 2024
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power converter for performing conversion from DC to AC or vice ver...
- Patent number 11,404,974
- Issue date Aug 2, 2022
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power storage device
- Patent number 11,217,842
- Issue date Jan 4, 2022
- Sumitomo Electric Industries, Ltd.
- Tetsuo Akita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power conversion system and control method therefor
- Patent number 11,139,657
- Issue date Oct 5, 2021
- Sumitomo Electric Industries, Ltd.
- Yoshiharu Nakajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply device and power supply system
- Patent number 11,031,807
- Issue date Jun 8, 2021
- Sumitomo Electric Industries, Ltd.
- Tetsuo Akita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power conversion device and control method for power conversion device
- Patent number 10,917,022
- Issue date Feb 9, 2021
- Sumitomo Electric Industries, Ltd.
- Tetsuo Akita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Conversion device having a control unit for detecting arm short-cir...
- Patent number 10,644,614
- Issue date May 5, 2020
- Sumitomo Electric Industries, Ltd
- Yuji Okuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion device and method for controlling same
- Patent number 10,530,238
- Issue date Jan 7, 2020
- Sumitomo Electric Industries, Ltd
- Tetsuo Akita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion device and method for determining operational stat...
- Patent number 10,476,259
- Issue date Nov 12, 2019
- Sumitomo Electric Industries, Ltd
- Toshiaki Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion device and control method for same
- Patent number 10,461,625
- Issue date Oct 29, 2019
- Sumitomo Electric Industries, Ltd
- Toshiaki Okumura
- G05 - CONTROLLING REGULATING
Information Patent Grant
Power supply device and switch control method therefor
- Patent number 10,411,501
- Issue date Sep 10, 2019
- Sumitomo Electric Industries, Ltd
- Tetsuo Akita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Conversion device
- Patent number 10,355,620
- Issue date Jul 16, 2019
- Sumitomo Electric Industries, Ltd
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply unit and method for backfeed protection thereof
- Patent number 10,355,519
- Issue date Jul 16, 2019
- Sumitomo Electric Industries, Ltd
- Tetsuo Akita
- G01 - MEASURING TESTING
Information Patent Grant
Conversion device for converting voltage in a non-insulated manner...
- Patent number 10,348,190
- Issue date Jul 9, 2019
- Sumitomo Electric Industries, Ltd
- Yusuke Shimizu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gate-blocking a DC/DC converter based upon output current of an AC...
- Patent number 10,340,814
- Issue date Jul 2, 2019
- Sumitomo Electric Industries, Ltd
- Yusuke Shimizu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion device performing DC/AC power conversion via inter...
- Patent number 10,284,113
- Issue date May 7, 2019
- Sumitomo Electric Industries, Ltd
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Inverter device
- Patent number 10,277,036
- Issue date Apr 30, 2019
- Sumitomo Electric Industries, Ltd
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion device and three-phase AC power supply device
- Patent number 10,193,434
- Issue date Jan 29, 2019
- Sumitomo Electric Industries, Ltd
- Toshiaki Okumura
- G05 - CONTROLLING REGULATING
Information Patent Grant
High-frequency switching type conversion device
- Patent number 9,882,508
- Issue date Jan 30, 2018
- Sumitomo Electric Industries, Ltd
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion device and three-phase AC power supply device
- Patent number 9,831,676
- Issue date Nov 28, 2017
- Sumitomo Electric Industries, Ltd
- Toshiaki Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Conversion device
- Patent number 9,800,177
- Issue date Oct 24, 2017
- Sumitomo Electric Industries, Ltd
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion device and three-phase alternating current power s...
- Patent number 9,748,865
- Issue date Aug 29, 2017
- Sumitomo Electric Industries, Ltd
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion device and three-phase alternating current power s...
- Patent number 9,722,508
- Issue date Aug 1, 2017
- Sumitomo Electric Industries, Ltd
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Inverter device with a control unit
- Patent number 9,627,995
- Issue date Apr 18, 2017
- Sumitomo Electric Industries, Ltd
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Precursor wire of oxide superconducting wire and production method...
- Patent number 8,238,991
- Issue date Aug 7, 2012
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Method of producing a material of oxide superconductor, method of p...
- Patent number 7,514,388
- Issue date Apr 7, 2009
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Superconducting coil and superconducting apparatus
- Patent number 7,468,207
- Issue date Dec 23, 2008
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing superconducting wire
- Patent number 7,293,343
- Issue date Nov 13, 2007
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Oxide high-temperature superconducting wire and method of producing...
- Patent number 7,162,287
- Issue date Jan 9, 2007
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Superconducting coil and superconducting apparatus
- Patent number 7,132,162
- Issue date Nov 7, 2006
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
INVERTER, PARALLEL INVERTER SYSTEM, AND METHOD OF CONTROLLING INVERTER
- Publication number 20240235421
- Publication date Jul 11, 2024
- Sumitomo Electric Industries, Ltd.
- Naoki AYAI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INVERTER, PARALLEL INVERTER SYSTEM, AND METHOD OF CONTROLLING INVERTER
- Publication number 20240136947
- Publication date Apr 25, 2024
- Sumitomo Electric Industries, Ltd.
- Naoki AYAI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC/DC CONVERSION SYSTEM, ELECTRICITY STORAGE SYSTEM, AND METHOD FOR...
- Publication number 20220320992
- Publication date Oct 6, 2022
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERTER, AND METHOD FOR CONTROLLING SAME
- Publication number 20210384845
- Publication date Dec 9, 2021
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER STORAGE DEVICE
- Publication number 20200036069
- Publication date Jan 30, 2020
- Sumitomo Electric Industries, Ltd.
- Tetsuo Akita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POWER CONVERSION DEVICE AND CONTROL METHOD FOR POWER CONVERSION DEVICE
- Publication number 20190238064
- Publication date Aug 1, 2019
- Sumitomo Electric Industries, Ltd.
- Tetsuo Akita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY DEVICE AND POWER SUPPLY SYSTEM
- Publication number 20190237995
- Publication date Aug 1, 2019
- Tetsuo Akita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION DEVICE AND METHOD FOR DETERMINING OPERATIONAL STAT...
- Publication number 20190181635
- Publication date Jun 13, 2019
- Sumitomo Electric Industries, Ltd.
- Toshiaki Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION DEVICE AND METHOD FOR CONTROLLING SAME
- Publication number 20190081575
- Publication date Mar 14, 2019
- Sumitomo Electric Industries, Ltd.
- Yusuke Shimizu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY UNIT AND METHOD FOR BACKFEED PROTECTION THEREOF
- Publication number 20190081505
- Publication date Mar 14, 2019
- Sumitomo Electric Industries, Ltd.
- Tetsuo Akita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION DEVICE AND CONTROL METHOD FOR SAME
- Publication number 20190044428
- Publication date Feb 7, 2019
- Sumitomo Electric Industries, Ltd.
- Toshiaki Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION DEVICE AND CONTROL METHOD THEREOF
- Publication number 20180287511
- Publication date Oct 4, 2018
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION SYSTEM AND CONTROL METHOD THEREFOR
- Publication number 20180287390
- Publication date Oct 4, 2018
- Sumitomo Electric Industries, Ltd.
- Yoshiharu Nakajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION DEVICE AND CONTROL METHOD THEREOF
- Publication number 20180262012
- Publication date Sep 13, 2018
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY DEVICE AND SWITCH CONTROL METHOD THEREFOR
- Publication number 20180205262
- Publication date Jul 19, 2018
- Sumitomo Electric Industries, Ltd.
- Tetsuo Akita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POWER CONVERSION DEVICE AND METHOD FOR CONTROLLING SAME
- Publication number 20180183319
- Publication date Jun 28, 2018
- Sumitomo Electric Industries, Ltd.
- Tetsuo Akita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONVERSION DEVICE AND METHOD FOR CONTROLLING THE SAME
- Publication number 20180166979
- Publication date Jun 14, 2018
- Sumitomo Electric Industries, Ltd.
- Yusuke SHIMIZU
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONVERSION DEVICE
- Publication number 20180034386
- Publication date Feb 1, 2018
- Yuji Okuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONVERSION DEVICE
- Publication number 20170229978
- Publication date Aug 10, 2017
- Sumitomo Electric Industries, Ltd.
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION DEVICE AND THREE-PHASE AC POWER SUPPLY DEVICE
- Publication number 20170133921
- Publication date May 11, 2017
- Sumitomo Electric Industries, Ltd.
- Toshiaki Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION DEVICE AND THREE-PHASE AC POWER SUPPLY DEVICE
- Publication number 20170104422
- Publication date Apr 13, 2017
- Sumitomo Electric Industries, Ltd.
- Toshiaki Okumura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION DEVICE AND THREE-PHASE ALTERNATING CURRENT POWER S...
- Publication number 20160336873
- Publication date Nov 17, 2016
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CONVERSION DEVICE AND THREE-PHASE ALTERNATING CURRENT POWER S...
- Publication number 20160329829
- Publication date Nov 10, 2016
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONVERSION DEVICE
- Publication number 20160268890
- Publication date Sep 15, 2016
- Naoki Ayai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONVERSION DEVICE
- Publication number 20160261206
- Publication date Sep 8, 2016
- Sumitomo Electric Industries, Ltd.
- Naoki AYAI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INVERTER DEVICE
- Publication number 20160126742
- Publication date May 5, 2016
- Sumitomo Electric Industries, Ltd.
- Naoki AYAI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INVERTER DEVICE
- Publication number 20160126863
- Publication date May 5, 2016
- Sumitomo Electric Industries, Ltd.
- Naoki AYAI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONCENTRATOR PHOTOVOLTAIC SYSTEM; SEMICONDUCTOR INTEGRATED CIRCUIT,...
- Publication number 20150340988
- Publication date Nov 26, 2015
- Sumitomo Electric Industries, Ltd.
- Shinjirou SHINADA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONCENTRATOR PHOTOVOLTAIC SYSTEM, METHOD FOR DETECTING TRACKING DEV...
- Publication number 20140373899
- Publication date Dec 25, 2014
- Takashi IWASAKI
- G01 - MEASURING TESTING
Information Patent Application
Bi2223 OXIDE SUPERCONDUCTOR AND METHOD FOR PRODUCING SAME
- Publication number 20120172230
- Publication date Jul 5, 2012
- Sumitomo Electric Industries, Ltd.
- Kazuaki Tatamidani
- C01 - INORGANIC CHEMISTRY

Person

Patents Grantslast 30 patents

DC/DC conversion system, electricity storage system, and method for...

Power converter for performing conversion from DC to AC or vice ver...

Power storage device

Power conversion system and control method therefor

Power supply device and power supply system

Power conversion device and control method for power conversion device

Conversion device having a control unit for detecting arm short-cir...

Power conversion device and method for controlling same

Power conversion device and method for determining operational stat...

Power conversion device and control method for same

Power supply device and switch control method therefor

Conversion device

Power supply unit and method for backfeed protection thereof

Conversion device for converting voltage in a non-insulated manner...

Gate-blocking a DC/DC converter based upon output current of an AC...

Power conversion device performing DC/AC power conversion via inter...

Inverter device

Power conversion device and three-phase AC power supply device

High-frequency switching type conversion device

Power conversion device and three-phase AC power supply device

Conversion device

Power conversion device and three-phase alternating current power s...

Power conversion device and three-phase alternating current power s...

Inverter device with a control unit

Precursor wire of oxide superconducting wire and production method...

Method of producing a material of oxide superconductor, method of p...

Superconducting coil and superconducting apparatus

Method of manufacturing superconducting wire

Oxide high-temperature superconducting wire and method of producing...

Superconducting coil and superconducting apparatus

Patents Applicationslast 30 patents

INVERTER, PARALLEL INVERTER SYSTEM, AND METHOD OF CONTROLLING INVERTER

INVERTER, PARALLEL INVERTER SYSTEM, AND METHOD OF CONTROLLING INVERTER

DC/DC CONVERSION SYSTEM, ELECTRICITY STORAGE SYSTEM, AND METHOD FOR...

POWER CONVERTER, AND METHOD FOR CONTROLLING SAME

POWER STORAGE DEVICE

POWER CONVERSION DEVICE AND CONTROL METHOD FOR POWER CONVERSION DEVICE

POWER SUPPLY DEVICE AND POWER SUPPLY SYSTEM

POWER CONVERSION DEVICE AND METHOD FOR DETERMINING OPERATIONAL STAT...

POWER CONVERSION DEVICE AND METHOD FOR CONTROLLING SAME

POWER SUPPLY UNIT AND METHOD FOR BACKFEED PROTECTION THEREOF

POWER CONVERSION DEVICE AND CONTROL METHOD FOR SAME

POWER CONVERSION DEVICE AND CONTROL METHOD THEREOF

POWER CONVERSION SYSTEM AND CONTROL METHOD THEREFOR

POWER CONVERSION DEVICE AND CONTROL METHOD THEREOF

POWER SUPPLY DEVICE AND SWITCH CONTROL METHOD THEREFOR

POWER CONVERSION DEVICE AND METHOD FOR CONTROLLING SAME

CONVERSION DEVICE AND METHOD FOR CONTROLLING THE SAME

CONVERSION DEVICE

CONVERSION DEVICE

POWER CONVERSION DEVICE AND THREE-PHASE AC POWER SUPPLY DEVICE

POWER CONVERSION DEVICE AND THREE-PHASE AC POWER SUPPLY DEVICE

POWER CONVERSION DEVICE AND THREE-PHASE ALTERNATING CURRENT POWER S...

POWER CONVERSION DEVICE AND THREE-PHASE ALTERNATING CURRENT POWER S...

CONVERSION DEVICE

CONVERSION DEVICE

INVERTER DEVICE

INVERTER DEVICE

CONCENTRATOR PHOTOVOLTAIC SYSTEM; SEMICONDUCTOR INTEGRATED CIRCUIT,...

CONCENTRATOR PHOTOVOLTAIC SYSTEM, METHOD FOR DETECTING TRACKING DEV...

Bi2223 OXIDE SUPERCONDUCTOR AND METHOD FOR PRODUCING SAME