ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,964, issued on Aug. 12, was assigned to SMC Corp. (Tokyo).
"Control method for chuck device" was invented by Hisashi Yajima (Tsukuba, Japan), Gen Tsuchiya (Tsukubamirai, Japan), Masayuki Ishikawa (Toride, Japan) and Takehiko Kanazawa (Kashiwa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control method of controlling a chuck device in a drive system for driving the chuck device, comprising opening or closing fingers by opening a switching valve at a first degree of valve opening to supply the fluid to a first cylinder chamber of the chuck device and to discharge the fluid from a second cylinder chamber of the chuck device so that a piston ...