US Patent Issued to AISIN on Aug. 12 for "Vehicle drive device and method for manufacturing planetary gear mechanism" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,555, issued on Aug. 12, was assigned to AISIN Corp. (Kariya, Japan).

"Vehicle drive device and method for manufacturing planetary gear mechanism" was invented by Mitsuhiko Kato (Kariya, Japan) and Shintaro Matsuda (Kariya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The numbers of teeth of all gears that mesh with a first gear portion and a second gear portion in a planetary gear mechanism are values whose remainder is N when divided by 2N. 2N planetary gears include N first type planetary gears and N second type planetary gears. The first type planetary gears and the second type planetary gears are different from each other in phase of gea...