Akiyoshi Sugiyama

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Fuji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Air-conditioning apparatus including an indoor unit and an outdoor...
- Patent number 5,062,278
- Issue date Nov 5, 1991
- Kabushiki Kaisha Toshiba
- Akiyoshi Sugiyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Air conditioner apparatus with starting control for parallel operat...
- Patent number 5,050,397
- Issue date Sep 24, 1991
- Kabushiki Kaisha Toshiba
- Akiyoshi Sugiyama
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Inverter controlled air conditioner with optimum determination for...
- Patent number 4,968,338
- Issue date Nov 6, 1990
- Kabushiki Kaisha Toshiba
- Akiyoshi Sugiyama
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Refrigerating circuit device for air conditioning apparatus and con...
- Patent number 4,850,200
- Issue date Jul 25, 1989
- Kabushiki Kaisha Toshiba
- Akiyoshi Sugiyama
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...