ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,185, issued on July 22, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Power transmission device" was invented by Hiroshi Yamamoto (Toyota, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power transmission device includes: a case including a first oil reservoir configured to store oil, a second oil reservoir configured to store the oil, and a partition wall configured to separate the first oil reservoir and the second oil reservoir from each other; the oil enclosed in the case; a rotating member configured to contact the oil in the first oil reservoir; and an opening and closing member located in the partition wall and configured to s...