ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,652, issued on Nov. 4, was assigned to NIDEC INSTRUMENTS Corp. (Nagano, Japan).
"Pump device and method of manufacturing the same" was invented by Takehiko Yazawa (Nagano, Japan) and Takashi Yamamoto (Nagano, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a pump device, a pump chamber is formed by welding a first flange portion of a first housing sealing a stator and a second flange portion of a second housing put on the first housing from one side in an axial direction. Since the second housing is provided with first reinforcement ribs each connecting the second flange portion and a side wall portion, the second flange portion is less likel...