Keiichi Iwamoto

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Gunma, JP

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Patents Grantslast 30 patents

Information Patent Grant
Refrigerating unit
- Patent number 5,669,232
- Issue date Sep 23, 1997
- Sanyo Electric Co., Ltd.
- Keiichi Iwamoto
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Hot water supply system
- Patent number 4,935,603
- Issue date Jun 19, 1990
- Sanyo Electric Co., Ltd.
- Keiichi Iwamoto
- F24 - HEATING RANGES VENTILATING