Akira Doi

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Gifu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Opposed flow heat exchanger
- Patent number 6,076,598
- Issue date Jun 20, 2000
- Mitsubishi Denki Kabushiki Kaisha
- Akira Doi
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Heat exchanger and method of manufacturing a heat exchanging member...
- Patent number 6,032,730
- Issue date Mar 7, 2000
- Mitsubishi Denki Kabushiki Kaisha
- Hiroyuki Akita
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Air ventilation or air supply system
- Patent number 5,938,527
- Issue date Aug 17, 1999
- Mitsubishi Denki Kabushiki Kaisha
- Takeharu Oshima
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Exothermic heat generating apparatus
- Patent number 5,653,106
- Issue date Aug 5, 1997
- Mitsubishi Denki Kabushiki Kaisha
- Hideaki Katashiba
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
GIRTH WELDED JOINT OF STEEL PIPE
- Publication number 20240353033
- Publication date Oct 24, 2024
- NIPPON STEEL CORPORATION
- Akira DOI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
TOTAL HEAT EXCHANGE ELEMENT
- Publication number 20120168136
- Publication date Jul 5, 2012
- Masaru Takada
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
TOTAL HEAT EXCHANGE ELEMENT
- Publication number 20120043064
- Publication date Feb 23, 2012
- MITSUBISHI ELECTRIC CORPORATION
- Masaru Takada
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
HEAT EXCHANGE ELEMENT
- Publication number 20120037349
- Publication date Feb 16, 2012
- MITSUBISHI ELECTRIC CORPORATION
- Masaru Takada
- F28 - HEAT EXCHANGE IN GENERAL