Yasumasa Akazawa

Person

Higashi-shinmachi, Matsubara, Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Air intake passage cleaning method and its apparatus
- Patent number 6,230,359
- Issue date May 15, 2001
- Yasumasa Akazawa
- B08 - CLEANING
Information Patent Grant
Piping cleaning device
- Patent number 6,227,215
- Issue date May 8, 2001
- Yasumasa Akazawa
- B08 - CLEANING
Information Patent Grant
Air treating device
- Patent number 6,168,140
- Issue date Jan 2, 2001
- Yasumasa Akazawa
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Air intake passage cleaning method and its apparatus
- Patent number 6,135,129
- Issue date Oct 24, 2000
- Yasumasa Akazawa
- B08 - CLEANING
Information Patent Grant
Accessory structure for vehicle air-conditioner
- Patent number 6,065,301
- Issue date May 23, 2000
- Yasumasa Akazawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Air intake passage cleaning method and its apparatus
- Patent number 6,047,714
- Issue date Apr 11, 2000
- Yasumasa Akazawa
- B08 - CLEANING
Information Patent Grant
Attachment to air-conditioner
- Patent number 5,911,742
- Issue date Jun 15, 1999
- Yasumasa Akazawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Accessory structure for spray cleaning a heat exchanger in a vehicl...
- Patent number 5,737,937
- Issue date Apr 14, 1998
- Yasumasa Akazawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Attachment for vehicle air-conditioning apparatus
- Patent number 5,664,423
- Issue date Sep 9, 1997
- Yasumasa Akazawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Engine coolant changing apparatus
- Patent number 5,615,716
- Issue date Apr 1, 1997
- Yasumasa Akazawa
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine coolant changing apparatus
- Patent number 5,573,045
- Issue date Nov 12, 1996
- Yasumasa Akazawa
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Air-conditioner cleaning method
- Patent number 5,509,972
- Issue date Apr 23, 1996
- Yasumasa Akazawa
- B60 - VEHICLES IN GENERAL

Yasumasa Akazawa

Person

Patents Grantslast 30 patents

Air intake passage cleaning method and its apparatus

Piping cleaning device

Air treating device

Air intake passage cleaning method and its apparatus

Accessory structure for vehicle air-conditioner

Air intake passage cleaning method and its apparatus

Attachment to air-conditioner

Accessory structure for spray cleaning a heat exchanger in a vehicl...

Attachment for vehicle air-conditioning apparatus

Engine coolant changing apparatus

Engine coolant changing apparatus

Air-conditioner cleaning method