Yoji Nagai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heat-and-electricity supply system
- Patent number 4,920,276
- Issue date Apr 24, 1990
- Hitachi, Ltd.
- Akitaka Tateishi
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Condensation system for power plant
- Patent number 4,434,620
- Issue date Mar 6, 1984
- Hitachi, Ltd.
- Hitoshi Ishimaru
- F22 - STEAM GENERATION
Information Patent Grant
Condensation system for power plant
- Patent number 4,365,476
- Issue date Dec 28, 1982
- Hitachi Ltd.
- Toyohiko Masuda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Side stream type condensing system and method of operating the same
- Patent number 4,353,213
- Issue date Oct 12, 1982
- Hitachi, Ltd.
- Toyohiko Masuda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL