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Shiro MARUYAMA
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Asahi-ku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Excitation inrush current suppressing apparatus and excitation inru...
Patent number
10,074,971
Issue date
Sep 11, 2018
Kabushiki Kaisha Toshiba
Kei Kawasaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Partial discharge monitoring system and partial discharge monitorin...
Patent number
10,018,666
Issue date
Jul 10, 2018
Kabushiki Kaisha Toshiba
Shiro Maruyama
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Magnetizing inrush current suppression device
Patent number
9,704,664
Issue date
Jul 11, 2017
Kabushiki Kaisha Toshiba
Tadashi Koshizuka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Excitation inrush current suppression device
Patent number
9,583,934
Issue date
Feb 28, 2017
Kabushiki Kaisha Toshiba
Kei Kawasaki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Inrush current suppression apparatus
Patent number
9,515,479
Issue date
Dec 6, 2016
Kabushiki Kaisha Toshiba
Tadashi Koshizuka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Excitation inrush-current suppression system
Patent number
9,502,189
Issue date
Nov 22, 2016
Kabushiki Kaisha Toshiba
Shiro Maruyama
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Magnetizing inrush current suppressing device
Patent number
9,490,627
Issue date
Nov 8, 2016
Kabushiki Kaisha Toshiba
Tadashi Koshizuka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Inrush current suppression apparatus
Patent number
9,425,615
Issue date
Aug 23, 2016
Kabushiki Kaisha Toshiba
Tadashi Koshizuka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Magnetizing inrush current suppression device
Patent number
9,385,525
Issue date
Jul 5, 2016
Kabushiki Kaisha Toshiba
Tadashi Koshizuka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Magnetizing inrush current suppression apparatus
Patent number
9,197,057
Issue date
Nov 24, 2015
Kabushiki Kaisha Toshiba
Keisuke Udagawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Partial discharge detector for gas-insulated electric apparatus
Patent number
8,981,761
Issue date
Mar 17, 2015
Kabushiki Kaisha Toshiba
Shiro Maruyama
G01 - MEASURING TESTING
Information
Patent Grant
Transformer inrush current suppression apparatus
Patent number
8,564,159
Issue date
Oct 22, 2013
Kabushiki Kaisha Toshiba
Keisuke Udagawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Gas insulated circuit breaker system and gas insulated circuit brea...
Patent number
8,199,445
Issue date
Jun 12, 2012
Kabushiki Kaisha Toshiba
Shiro Maruyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Switching control system of circuit breaker
Patent number
8,018,097
Issue date
Sep 13, 2011
Kabushiki Kaisha Toshiba
Minoru Saito
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Sensor attached IC tag application high voltage equipment
Patent number
7,868,755
Issue date
Jan 11, 2011
Kabushiki Kaisha Toshiba
Masahiro Hanai
G01 - MEASURING TESTING
Information
Patent Grant
Partial discharge detection device
Patent number
7,746,082
Issue date
Jun 29, 2010
Kabushiki Kaisha Toshiba
Shiro Maruyama
G01 - MEASURING TESTING
Information
Patent Grant
System for protecting and controlling substation main circuit compo...
Patent number
6,845,301
Issue date
Jan 18, 2005
Kabushiki Kaisha Toshiba
Koichi Hamamatsu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Apparatus monitoring system and apparatus monitoring method
Patent number
6,522,247
Issue date
Feb 18, 2003
Kabushiki Kaisha Toshiba
Shiro Maruyama
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
PARTIAL DISCHARGE MONITORING SYSTEM AND PARTIAL DISCHARGE MONITORIN...
Publication number
20150377950
Publication date
Dec 31, 2015
KABUSHIKI KAISHA TOSHIBA
Shiro Maruyama
G01 - MEASURING TESTING
Information
Patent Application
METHOD OF SUPPRESSING OVERVOLTAGE AND DEVICE THEREFOR
Publication number
20150171626
Publication date
Jun 18, 2015
KABUSHIKI KAISHA TOSHIBA
Tadashi KOSHIZUKA
G01 - MEASURING TESTING
Information
Patent Application
EXCITATION INRUSH CURRENT SUPPRESSING APPARATUS AND EXCITATION INRU...
Publication number
20150124357
Publication date
May 7, 2015
KABUSHIKI KAISHA TOSHIBA
Kei Kawasaki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MAGNETIZING INRUSH CURRENT SUPPRESSING DEVICE
Publication number
20150085404
Publication date
Mar 26, 2015
KABUSHIKI KAISHA TOSHIBA
Tadashi KOSHIZUKA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MAGNETIZING INRUSH CURRENT SUPPRESSION DEVICE
Publication number
20150055266
Publication date
Feb 26, 2015
KABUSHIKI KAISHA TOSHIBA
Tadashi KOSHIZUKA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MAGNETIZING INRUSH CURRENT SUPPRESSION DEVICE
Publication number
20140192443
Publication date
Jul 10, 2014
Kabushiki Kaisha Toshiba
Tadashi KOSHIZUKA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
EXCITATION INRUSH-CURRENT SUPPRESSION SYSTEM
Publication number
20140168846
Publication date
Jun 19, 2014
KABUSHIKI KAISHA TOSHIBA
Shiro MARUYAMA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
EXCITATION INRUSH CURRENT SUPPRESSION DEVICE
Publication number
20140139959
Publication date
May 22, 2014
Kabushiki Kaisha Toshiba
Kei KAWASAKI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
INRUSH CURRENT SUPPRESSION APPARATUS
Publication number
20140016235
Publication date
Jan 16, 2014
KABUSHIKI KAISHA TOSHIBA
Tadashi KOSHIZUKA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
INRUSH CURRENT SUPPRESSION APPARATUS
Publication number
20130300215
Publication date
Nov 14, 2013
KABUSHIKI KAISHA TOSHIBA
Tadashi Koshizuka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MAGNETIZING INRUSH CURRENT SUPPRESSION APPARATUS
Publication number
20130163125
Publication date
Jun 27, 2013
Kabushiki Kaisha Toshiba
Keisuke UDAGAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MAGNETIZING INRUSH CURRENT SUPPRESSION APPARATUS
Publication number
20130155553
Publication date
Jun 20, 2013
Kabushiki Kaisha Toshiba
Kei KAWASAKI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
TRANSFORMER INRUSH CURRENT SUPPRESSION APPARATUS
Publication number
20110181989
Publication date
Jul 28, 2011
Kabushiki Kaisha Toshiba
Keisuke UDAGAWA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
PARTIAL DISCHARGE DETECTOR FOR GAS-INSULATED ELECTRIC APPARATUS
Publication number
20110080161
Publication date
Apr 7, 2011
Shiro Maruyama
G01 - MEASURING TESTING
Information
Patent Application
POWER SWITCHGEAR
Publication number
20110000772
Publication date
Jan 6, 2011
KABUSHIKI KAISHA TOSHIBA
Masahiro Hanai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SWITCHING CONTROL SYSTEM OF CIRCUIT BREAKER
Publication number
20100141050
Publication date
Jun 10, 2010
KABUSHIKI KAISHA TOSHIBA
Minoru Saito
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
GAS INSULATED CIRCUIT BREAKER SYSTEM AND GAS INSULATED CIRCUIT BREA...
Publication number
20100102036
Publication date
Apr 29, 2010
Kabushiki Kaisha Toshiba
Shiro MARUYAMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
PARTIAL DISCHARGE DETECTION DEVICE
Publication number
20090027062
Publication date
Jan 29, 2009
Shiro MARUYAMA
G01 - MEASURING TESTING
Information
Patent Application
SENSOR ATTACHED IC TAG APPLICATION HIGH VOLTAGE EQUIPMENT
Publication number
20080087115
Publication date
Apr 17, 2008
Kabushiki Kaisha Toshiba
Masahiro Hanai
G01 - MEASURING TESTING
Information
Patent Application
System for protecting and controlling substation main circuit compo...
Publication number
20020116092
Publication date
Aug 22, 2002
Koichi Hamamatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Apparatus monitoring system and apparatus monitoring method
Publication number
20010048375
Publication date
Dec 6, 2001
KABUSHIKI KAISHA TOSHIBA
Shiro Maruyama
G05 - CONTROLLING REGULATING