Hideo Tsukioka

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Mito, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for diagnosing oil-filled electric apparatus
- Patent number 4,502,320
- Issue date Mar 5, 1985
- Hitachi, Ltd.
- Seiichi Sakai
- G01 - MEASURING TESTING
Information Patent Grant
Gas chromatographic apparatus
- Patent number 4,470,832
- Issue date Sep 11, 1984
- Hitachi, Ltd.
- Katuo Sugawara
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for detecting gas components in oil in oil-fil...
- Patent number 4,444,040
- Issue date Apr 24, 1984
- Hitachi, Ltd.
- Seiichi Sakai
- G01 - MEASURING TESTING
Information Patent Grant
Fire-retardant insulating oils
- Patent number 4,436,654
- Issue date Mar 13, 1984
- Hitachi, Ltd.
- Etsuo Ohe
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
System for monitoring abnormality of oil-filled electric devices
- Patent number 4,402,211
- Issue date Sep 6, 1983
- Hitachi, Ltd.
- Katuo Sugawara
- G01 - MEASURING TESTING
Information Patent Grant
Self-bondable insulated wires comprising three coatings including a...
- Patent number 4,129,678
- Issue date Dec 12, 1978
- Hitachi, Ltd.
- Masatoshi Seki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Open-type boiling cooling apparatus
- Patent number 4,106,557
- Issue date Aug 15, 1978
- Hitachi, Ltd.
- Hisao Sonobe
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...