Tokihiro Umemura

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Mie-gun Mie, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical voltage sensor
- Patent number 8,829,890
- Issue date Sep 9, 2014
- Kabushiki Kaisha Toshiba
- Masao Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Phase modulator, phase modulator assembly, and photosensor
- Patent number 8,319,958
- Issue date Nov 27, 2012
- Kabushiki Kaisha Toshiba
- Kinichi Sasaki
- G01 - MEASURING TESTING
Information Patent Grant
Optical voltage transformer
- Patent number 8,115,473
- Issue date Feb 14, 2012
- Kabushiki Kaisha Toshiba
- Junichi Sato
- G01 - MEASURING TESTING
Information Patent Grant
Power control device with electric double layer capacitor unit cells
- Patent number 6,812,591
- Issue date Nov 2, 2004
- Kabushiki Kaisha Toshiba
- Tokihiro Umemura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of diagnosing aged degradation of oil-filled electrical equi...
- Patent number 5,258,310
- Issue date Nov 2, 1993
- Kabushiki Kaisha Toshiba
- Keiichi Abe
- G01 - MEASURING TESTING
Information Patent Grant
Partial discharge detecting device for electrical equipments
- Patent number 5,075,629
- Issue date Dec 24, 1991
- Kabushiki Kaisha Toshiba
- Tokihiro Umemura
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL VOLTAGE SENSOR
- Publication number 20110234202
- Publication date Sep 29, 2011
- Masao Takahashi
- G01 - MEASURING TESTING
Information Patent Application
PHASE MODULATOR, PHASE MODULATOR ASSEMBLY, AND PHOTOSENSOR
- Publication number 20100315621
- Publication date Dec 16, 2010
- Kinichi Sasaki
- G02 - OPTICS
Information Patent Application
OPTICAL VOLTAGE TRANSFORMER
- Publication number 20100109642
- Publication date May 6, 2010
- Kabushiki Kaisha Toshiba
- Junichi Sato
- G01 - MEASURING TESTING
Information Patent Application
Electrical double-layer capacitor
- Publication number 20040017647
- Publication date Jan 29, 2004
- Kabushiki Kaisha Toshiba
- Tetsushi Okamoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Power control device with electric double layer capacitor unit cells
- Publication number 20020017822
- Publication date Feb 14, 2002
- Tokihiro Umemura
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC