Patents and Technologies
We are committed to being at the forefront of developing state-of-the-art technologies.
The wide range of patents we have acquired in many countries around the world are a testament to our creativity and ingenuity.
Patents
Heat exchanger thermal sanitization
- Technology that heats water accumulated in a heat exchanger to eliminate mold and bacteria (2018)
Self-cleaning filters
(more than 100 patents are granted or pending in many countries around the world)
- Automatic cleaning of filters in air conditioners
- First in the industry to incorporate this technology into air conditioners (2003)
Energy conservation technology
(more than 120 patents are granted or pending in many countries around the world)
- High-density multi-path heat exchangers with upgraded performance
- Floor thermo-sensors that determine floor temperature to control room temperature
- Inverter control technology
Airflow optimization technology
(more than 50 patents are granted or pending in many countries around the world)
- Controls cool or warm airflow from an air conditioner using fans on both sides (DUAL BLASTER®)
Radio communication system for fire and disaster response
(more than 50 patents are granted or pending in Japan)
- Digital wireless modulator-demodulator technology
- Emergency command and support system
Axial gap motors
(more than 80 patents are granted or pending in many countries around the world)
- Compact, high-output motors
- First in the industry to incorporate these motors into air conditioners (2004)
- Also built into motorized bicycles (2007)
The World’s First Technologies Fujitsu General Developed for Its Air Conditioners
C-shape easy-to-install window air conditioner (1971)
Lambda heat exchanger (1991)
Self-cleaning filter (2003)
Copper tubing technology incorporated into a heat exchanger with 5-mm four-branched path (2007)
DUAL BLASTER® with two side fans (2013)
Heat exchanger thermal sanitization (2018)
Two-Stage Plasma Air Cleaning Technology (2022)