Before revision: In Japan, Fusanosuke Kuhara, founder of Hitachi, Ltd., made an air conditioner for his own home use using compressed CO2 as a refrigerant in 1917.Fusanosuke Kuhara used CO2 gas compressed Cryocooler in 1971.
After revision: In Japan, Fusanosuke Kuhara, founder of Hitachi, Ltd., made an air conditioner for his own home use using compressed CO2 as a refrigerant in 1917.Fusanosuke Kuhara used CO2 gas compressed Cryocooler in