ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,723, issued on May 20, was assigned to KOBE STEEL LTD. (Hyogo, Japan).
"Linear motor" was invented by Shumpei Hayashi (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a linear motor capable of having enhanced thrust density. The linear motor includes a magnetic pole element and an armature including coils. The magnetic pole element includes magnetic pole element cores and permanent magnets. The magnetic element cores include first cores, second cores, third cores, and fourth cores, each aligned in the linear motion direction. The permanent magnets are interposed between mutually adjacent magnetic element cores among the magnet...