Toshiaki Rokunohe

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Work terminal, oil leakage detection apparatus, and oil leakage det...
- Patent number 11,494,888
- Issue date Nov 8, 2022
- Hitachi, Ltd.
- Li Lu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Diagnostic method of switchgear and device thereof
- Patent number 11,249,137
- Issue date Feb 15, 2022
- Hitachi, Ltd.
- Masaru Tatemi
- G01 - MEASURING TESTING
Information Patent Grant
Oil leakage detector and oil leakage detection method and image pro...
- Patent number 10,755,442
- Issue date Aug 25, 2020
- Hitachi, Ltd.
- Li Lu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Switch operating characteristic monitoring device, switch equipped...
- Patent number 10,615,590
- Issue date Apr 7, 2020
- Hitachi, Ltd.
- Masaru Tatemi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Diagnosing device for on-load tap changing apparatus, diagnosing me...
- Patent number 10,509,021
- Issue date Dec 17, 2019
- Hitachi, Ltd.
- Li Lu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas leak detection device and gas leak detection method
- Patent number 10,190,935
- Issue date Jan 29, 2019
- Hitachi, Ltd.
- Hisao Inami
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Leakage oil detector system and method
- Patent number 10,113,933
- Issue date Oct 30, 2018
- Hitachi, Ltd.
- Li Lu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Circuit breaker and circuit breaker operating method
- Patent number 9,899,172
- Issue date Feb 20, 2018
- Hitachi, Ltd.
- Hajime Urai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Oil leakage detector and oil leakage detection method
- Patent number 9,898,830
- Issue date Feb 20, 2018
- Hitachi, Ltd.
- Li Lu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switchgear
- Patent number 9,520,699
- Issue date Dec 13, 2016
- Hitachi, Ltd.
- Hajime Urai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gas insulated bus and particle removal method for gas insulated bus
- Patent number 8,804,298
- Issue date Aug 12, 2014
- Hitachi, Ltd.
- Tatsuro Kato
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and system for measuring partial discharge
- Patent number 7,256,584
- Issue date Aug 14, 2007
- Japan AE Power Systems Corporation
- Tomohiro Moriyama
- G01 - MEASURING TESTING
Information Patent Grant
Gas-insulated switchgear tank
- Patent number 7,193,172
- Issue date Mar 20, 2007
- Hitachi, Ltd.
- Toshiaki Rokunohe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gas insulated switchgear
- Patent number 6,759,616
- Issue date Jul 6, 2004
- Hitachi, Ltd.
- Toshiaki Rokunohe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gas insulated switchgear
- Patent number 6,680,453
- Issue date Jan 20, 2004
- Hitachi, Ltd.
- Toshiaki Rokunohe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and device for detecting a partial discharge in an electrica...
- Patent number 6,661,235
- Issue date Dec 9, 2003
- Hitachi, Ltd.
- Toshiaki Rokunohe
- G01 - MEASURING TESTING
Information Patent Grant
Insulated device diagnosing system that prepares detection data fro...
- Patent number 6,424,162
- Issue date Jul 23, 2002
- Hitachi, Ltd.
- Toshiaki Rokunohe
- G01 - MEASURING TESTING
Information Patent Grant
Bushing
- Patent number 6,218,627
- Issue date Apr 17, 2001
- Hitachi, Ltd.
- Katsuji Shindo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Insulated device diagnosing system for diagnosing device based upon...
- Patent number 5,982,181
- Issue date Nov 9, 1999
- Hitachi, Ltd.
- Toshiaki Rokunohe
- G01 - MEASURING TESTING
Information Patent Grant
Gas insulated device, gas insulated switchgear, gas insulated bus l...
- Patent number 5,689,088
- Issue date Nov 18, 1997
- Hitachi, Ltd.
- Toshiaki Rokunohe
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Work Terminal, Oil Leakage Detection Apparatus, and Oil Leakage Det...
- Publication number 20210192710
- Publication date Jun 24, 2021
- Hitachi, Ltd.
- Li LU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Diagnostic Method of Switchgear and Device Thereof
- Publication number 20200363473
- Publication date Nov 19, 2020
- Hitachi, Ltd
- Masaru TATEMI
- G01 - MEASURING TESTING
Information Patent Application
Diagnosing Device for On-Load Tap Changing Apparatus, Diagnosing Me...
- Publication number 20190101521
- Publication date Apr 4, 2019
- Hitachi, Ltd
- Li LU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Oil Leakage Detector and Oil Leakage Detection Method and Image Pro...
- Publication number 20180137652
- Publication date May 17, 2018
- Hitachi, Ltd
- Li LU
- G01 - MEASURING TESTING
Information Patent Application
Switch Operating Characteristic Monitoring Device, Switch Equipped...
- Publication number 20180062382
- Publication date Mar 1, 2018
- Hitachi, Ltd
- Masaru TATEMI
- G01 - MEASURING TESTING
Information Patent Application
LEAKAGE OIL DETECTOR SYSTEM AND METHOD
- Publication number 20170234762
- Publication date Aug 17, 2017
- Hitachi, Ltd
- Li LU
- G01 - MEASURING TESTING
Information Patent Application
Gas Leak Detection Device and Gas Leak Detection Method
- Publication number 20170030799
- Publication date Feb 2, 2017
- Hitachi, Ltd
- Hisao INAMI
- G01 - MEASURING TESTING
Information Patent Application
Oil Leakage Detector and Oil Leakage Detection Method
- Publication number 20160275699
- Publication date Sep 22, 2016
- Hitachi, Ltd
- Li LU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Switchgear
- Publication number 20160049268
- Publication date Feb 18, 2016
- Hitachi, Ltd
- Toshiaki ROKUNOHE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Switchgear
- Publication number 20150131207
- Publication date May 14, 2015
- Hitachi, Ltd
- Hajime Urai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Gas Circuit Breaker
- Publication number 20150091677
- Publication date Apr 2, 2015
- Hitachi, Ltd
- Hajime Urai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Partial Discharge Measurement Device and Method
- Publication number 20150054524
- Publication date Feb 26, 2015
- Hitachi, Ltd
- Chie KOBAYASHI
- G01 - MEASURING TESTING
Information Patent Application
Circuit Breaker and Circuit Breaker Operating Method
- Publication number 20150043121
- Publication date Feb 12, 2015
- Hitachi, Ltd
- Hajime Urai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GAS INSULATED SWITCHGEAR
- Publication number 20140360984
- Publication date Dec 11, 2014
- Hitachi, Ltd
- Tomohiro MORIYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Gas Insulated Bus and Particle Removal Method for Gas Insulated Bus
- Publication number 20120281332
- Publication date Nov 8, 2012
- Hitachi, Ltd
- Tatsuro KATO
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INSULATING SPACER FOR GAS-INSULATED ELECTRICAL EQUIPMENT
- Publication number 20110079411
- Publication date Apr 7, 2011
- JAPAN AE POWER SYSTEMS CORPORATION
- Ryoichi Shinohara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Gas-insulated switchgear tank
- Publication number 20060186091
- Publication date Aug 24, 2006
- Hitachi Ltd.
- Toshiaki Rokunohe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method and system for measuring partial discharge
- Publication number 20060164100
- Publication date Jul 27, 2006
- Hitachi, Ltd.
- Tomohiro Moriyama
- G01 - MEASURING TESTING
Information Patent Application
Method and system for measuring partial discharge
- Publication number 20060071667
- Publication date Apr 6, 2006
- Hitachi, Ltd.
- Tomohiro Moriyama
- G01 - MEASURING TESTING
Information Patent Application
Method and system for measuring partial discharge
- Publication number 20050184737
- Publication date Aug 25, 2005
- Tomohiro Moriyama
- G01 - MEASURING TESTING
Information Patent Application
Gas-insulated switchgear tank
- Publication number 20050056617
- Publication date Mar 17, 2005
- Toshiaki Rokunohe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GAS INSULATED SWITCHGEAR
- Publication number 20040079731
- Publication date Apr 29, 2004
- Hitachi, Ltd.
- Toshiaki Rokunohe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Insulated device diagnosing system and partial discharge detecting...
- Publication number 20020163344
- Publication date Nov 7, 2002
- Hitachi, Ltd.
- Toshiaki Rokunohe
- G01 - MEASURING TESTING
Information Patent Application
Gas insulated switchgear
- Publication number 20020104827
- Publication date Aug 8, 2002
- Toshiaki Rokunohe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method and device for detecting a partial discharge in an electrica...
- Publication number 20020024341
- Publication date Feb 28, 2002
- Toshiaki Rokunohe
- G01 - MEASURING TESTING

Toshiaki Rokunohe

Person

Patents Grantslast 30 patents

Work terminal, oil leakage detection apparatus, and oil leakage det...

Diagnostic method of switchgear and device thereof

Oil leakage detector and oil leakage detection method and image pro...

Switch operating characteristic monitoring device, switch equipped...

Diagnosing device for on-load tap changing apparatus, diagnosing me...

Gas leak detection device and gas leak detection method

Leakage oil detector system and method

Circuit breaker and circuit breaker operating method

Oil leakage detector and oil leakage detection method

Switchgear

Gas insulated bus and particle removal method for gas insulated bus

Method and system for measuring partial discharge

Gas-insulated switchgear tank

Gas insulated switchgear

Gas insulated switchgear

Method and device for detecting a partial discharge in an electrica...

Insulated device diagnosing system that prepares detection data fro...

Bushing

Insulated device diagnosing system for diagnosing device based upon...

Gas insulated device, gas insulated switchgear, gas insulated bus l...

Patents Applicationslast 30 patents

Work Terminal, Oil Leakage Detection Apparatus, and Oil Leakage Det...

Diagnostic Method of Switchgear and Device Thereof

Diagnosing Device for On-Load Tap Changing Apparatus, Diagnosing Me...

Oil Leakage Detector and Oil Leakage Detection Method and Image Pro...

Switch Operating Characteristic Monitoring Device, Switch Equipped...

LEAKAGE OIL DETECTOR SYSTEM AND METHOD

Gas Leak Detection Device and Gas Leak Detection Method

Oil Leakage Detector and Oil Leakage Detection Method

Switchgear

Switchgear

Gas Circuit Breaker

Partial Discharge Measurement Device and Method

Circuit Breaker and Circuit Breaker Operating Method

GAS INSULATED SWITCHGEAR

Gas Insulated Bus and Particle Removal Method for Gas Insulated Bus

INSULATING SPACER FOR GAS-INSULATED ELECTRICAL EQUIPMENT

Gas-insulated switchgear tank

Method and system for measuring partial discharge

Method and system for measuring partial discharge

Method and system for measuring partial discharge

Gas-insulated switchgear tank

GAS INSULATED SWITCHGEAR

Insulated device diagnosing system and partial discharge detecting...

Gas insulated switchgear

Method and device for detecting a partial discharge in an electrica...