ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,994, issued on Aug. 12, was assigned to OMRON Corp. (Kyoto, Japan).
"Screw driving device" was invented by Masayuki Sugioka (Kyoto, Japan), Masayoshi Tsukikawa (Kyoto, Japan), Kota Miyamoto (Kyoto, Japan), Kento Tsuchikawa (Kyoto, Japan) and Yuki Sakamoto (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to the present invention, an axial force of a screw which is generated by screw driving is estimated. A control part applies a predetermined torque generated by a rotation axis servomotor to a screw in a rotation direction where a screw is driven, and thereafter releases the torque. The control part then estimates an axial force...