Tadashi Takai

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Shimizu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Air conditioner management system and converter unit therefor
- Patent number 7,260,451
- Issue date Aug 21, 2007
- Hitachi, Ltd., Tokyo, Japan, as Trustee for the Benefit of Hitachi Air Condit...
- Tadashi Takai
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Service system for air conditioner and server system for monitoring...
- Patent number 6,925,420
- Issue date Aug 2, 2005
- Hitachi, Ltd., trustee for the benefit of Hitachi Air Conditioning Systems Co...
- Makoto Ito
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Service system for air conditioner and server system for monitoring...
- Patent number 6,823,288
- Issue date Nov 23, 2004
- Hitchi, Ltd.
- Makoto Ito
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Air conditioner management system
- Patent number 6,647,317
- Issue date Nov 11, 2003
- Tadashi Takai
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Service system for air conditioner and server system for monitoring...
- Patent number 6,643,611
- Issue date Nov 4, 2003
- Makoto Ito
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Service system for air conditioner and server system for monitoring...
- Publication number 20050043924
- Publication date Feb 24, 2005
- Makoto Ito
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Air conditioner management system and converter unit therefor
- Publication number 20040049320
- Publication date Mar 11, 2004
- Tadashi Takai
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Service system for air conditioner and server system for monitoring...
- Publication number 20040044502
- Publication date Mar 4, 2004
- Makoto Ito
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Air conditioner management system and converter unit therefor
- Publication number 20020029096
- Publication date Mar 7, 2002
- Tadashi Takai
- F24 - HEATING RANGES VENTILATING