ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,064, issued on Dec. 30, was assigned to HITACHI ASTEMO LTD. (Ibaraki, Japan).

"Linear motor, compressor equipped with linear motor, refrigerator equipped with compressor, and vehicle air suspension equipped with compressor" was invented by Junnosuke Nakatsugawa (Tokyo), Masaki Koyama (Tokyo), Hiroshi Sakai (Hitachinaka, Japan), Kan Kobayashi (Hitachinaka, Japan) and Yoshinori Kawai (Hitachinaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A linear motor for a compressor having asymmetric load characteristics in both directions of a stroke, improves the service life of a bearing, and reduces a total length of a system. The linear motor inclu...