Akio Sakazume

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Control system for compressor motor used with air-conditioning unit
- Patent number 4,638,643
- Issue date Jan 27, 1987
- Hitachi, Ltd.
- Akio Sakazume
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Rotary compressor with tapered valve ports for lubricating pump
- Patent number 4,561,829
- Issue date Dec 31, 1985
- Hitachi, Ltd.
- Hiroshi Iwata
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Oil feeder means for use in a horizontal type rotary compressor
- Patent number 4,544,338
- Issue date Oct 1, 1985
- Hitachi, Ltd.
- Masahiro Takebayashi
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Room air conditioner
- Patent number 4,111,000
- Issue date Sep 5, 1978
- Hitachi, Ltd.
- Akio Sakazume
- F24 - HEATING RANGES VENTILATING