ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,666, issued on Sept. 30, was assigned to CANON K.K. (Tokyo).

"Optical apparatus and image pickup apparatus including the same" was invented by Tadanori Okada (Tochigi, Japan), Toshihiro Okuda (Tochigi, Japan), Takehiko Sato (Tochigi, Japan), Kunihiko Sasaki (Tochigi, Japan), Shu Ito (Tochigi, Japan) and Toshimune Nagano (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a lens barrel including: a fifth lens unit barrel; a fourth lens unit barrel; a linear ultrasonic motor configured to electrically drive the fourth lens unit barrel in an optical axis direction; a rack configured to transfer a driving force of the linear ultr...