Ryohei Minowa

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cooling system having combination of compression and absorption typ...
- Patent number 4,471,630
- Issue date Sep 18, 1984
- Hitachi, Ltd.
- Shigeo Sugimoto
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Dilute solution producing system of absorption refrigerating apparatus
- Patent number 4,462,222
- Issue date Jul 31, 1984
- Hitachi, Ltd.
- Shigeo Sugimoto
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Absorption type refrigeration system
- Patent number 4,439,999
- Issue date Apr 3, 1984
- Hitachi, Ltd.
- Akio Mori
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...