ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,833, issued on May 13, was assigned to MAKITA Corp. (Anjo, Japan).
"Battery pack" was invented by Tatsuya Nagahama (Anjo, Japan) and Kazuya Tanaka (Anjo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A battery pack (2; 402; 602) includes an outer case (12; 412; 612), which comprises an upper-part case (14; 414) and a lower-part case (15; 415) fixed to the upper-part case (14; 414), and a cell case (80; 480; 780; 980), which is housed in the outer case (12; 412; 612). An engaging part (30) is provided on one of the upper-part case (14; 414) and the cell case (80; 480; 780; 980). An engaged part (110), with which the engaging part (30) engages,...