ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,523, issued on March 18, was assigned to AutoNetworks Technologies Ltd. (Yokkaichi, Japan), Sumitomo Wiring Systems Ltd. (Yokkaichi, Japan) and Sumitomo Electric Industries Ltd. (Osaka, Japan).

"Board unit" was invented by Shun Takamizawa (Yokkaichi, Japan) and Shigeki Yamane (Yokkaichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A board unit includes: a board stack including a first circuit board and a second circuit board that are supported while being spaced apart from each other; an electronic component mounted on the first circuit board; a first heat dissipation member that covers the board stack from outside of the first circuit boa...