ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,149, issued on June 10, was assigned to Panasonic Intellectual Property Management Co. Ltd. (Osaka, Japan).
"Rotary compressor" was invented by Hirofumi Yoshida (Shiga, Japan), Akifumi Hyodo (Osaka, Japan) and Yusuke Imai (Shiga, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary compressor 100 includes a drive shaft 101 having an eccentric shaft 101a, a piston 102 fitted onto the eccentric shaft 101a, a cylinder 103 that receives the eccentrically rotating piston 102, an upper end plate 104 and a lower end plate 105 that close the upper and lower opening surfaces of the cylinder 103, a vane 106 that divides a space formed by the cylinder...