Tetsuo Oyama

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Takahagi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sodium-sulfur battery, and a battery system using same
- Patent number 6,329,099
- Issue date Dec 11, 2001
- Hitachi, Ltd.
- Tetsuo Oyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Sodium-sulfur battery, and a battery system using same
- Patent number 5,962,160
- Issue date Oct 5, 1999
- Hitachi, Ltd.
- Tetsuo Oyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Nuclear fusion reactor
- Patent number 5,182,075
- Issue date Jan 26, 1993
- Hitachi, Ltd.
- Yoshitaka Gotoh
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Process for producing cathode for cathode ray tube of directly heat...
- Patent number 4,114,243
- Issue date Sep 19, 1978
- Hitachi, Ltd.
- Ko Soeno
- H01 - BASIC ELECTRIC ELEMENTS