US Patent Issued to MAKITA on Jan. 20 for "Hammer drill" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,171, issued on Jan. 20, was assigned to MAKITA Corp. (Anjo, Japan).

"Hammer drill" was invented by Yoshitaka Machida (Anjo, Japan) and Kiyonobu Yoshikane (Anjo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hammer drill includes a housing inside which a motor, a tubular tool holder, a driving mechanism, a rotation conversion member, and an inner housing are disposed. The driving mechanism is configured to perform at least one of rotation actuation of the tool holder and hammering actuation of a bit. The inner housing supports the driving mechanism, supports the tool holder via a first bearing, and supports an output shaft via a second beari...