Hisashi URASAKI

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Abrasion resistant material, puffer cylinder, and puffer type gas c...
- Patent number 10,128,071
- Issue date Nov 13, 2018
- Hitachi, Ltd.
- Masahiko Ono
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
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- Patent number 9,673,005
- Issue date Jun 6, 2017
- Hitachi, Ltd.
- Hisashi Urasaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Wear-resistant material, method for producing the same, puffer cyli...
- Patent number 9,653,239
- Issue date May 16, 2017
- Hitachi, Ltd.
- Masahiko Ono
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Wear-resistant material, puffer cylinder, and puffer-type gas circu...
- Patent number 9,604,881
- Issue date Mar 28, 2017
- Hitachi, Ltd.
- Masahiko Ono
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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

Patents Applicationslast 30 patents

Information Patent Application
ABRASION RESISTANT MATERIAL, PUFFER CYLINDER, AND PUFFER TYPE GAS C...
- Publication number 20170271113
- Publication date Sep 21, 2017
- Hitachi, Ltd
- Masahiko ONO
- B32 - LAYERED PRODUCTS
Information Patent Application
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- Publication number 20160268076
- Publication date Sep 15, 2016
- Hitachi, Ltd
- Hisashi URASAKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Wear-Resistant Material, Method for Producing the Same, Puffer Cyli...
- Publication number 20150060408
- Publication date Mar 5, 2015
- Hitachi, Ltd
- Masahiko ONO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WEAR-RESISTANT MATERIAL, PUFFER CYLINDER, AND PUFFER-TYPE GAS CIRCU...
- Publication number 20140367360
- Publication date Dec 18, 2014
- Masahiko ONO
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Gas Circuit Breaker
- Publication number 20140144883
- Publication date May 29, 2014
- Hitachi, Ltd
- Hisashi URASAKI
- 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