ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,202, issued on Jan. 13, was assigned to KOGANEI Corp. (Tokyo).
"Liquid supply device" was invented by Takeo Yajima (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid supply device 10 has a pump unit 11 in which a plurality of pump members are provided; a housing 15 in which a plurality of drive rods for driving the pump members are integrated; a drive roller 32 which rotation about a center rotation axis in a direction lateral to a reciprocation direction of the driving rod; a cam member 43 on whose end surface a cam surface 48 contacted with the drive roller 32 is provided; a magnet 66 provided on an outer peripheral portion of the cam ...