ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,708,277, issued on Aug. 18, was assigned to TAIYO YUDEN Co. LTD. (Tokyo).
"Pulse wave detection device" was invented by Aiki Kameyama (Takasaki, Japan) and Katsuhiro Oyama (Takasaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a pulse wave detection device including a sensor substrate having a mounting surface and a back surface, a light receiving element disposed on the mounting surface of the sensor substrate, a light emitting element disposed on the mounting surface, and a light guide part having a first opening that surrounds the light receiving element, a second opening that corresponds to the first opening and is provided at a...