ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,661, issued on Aug. 12, was assigned to PIGEON Corp. (Tokyo).
"Manual breast pump" was invented by Yukifumi Ochiai (Tokyo), Sumiko Kuroishi (Tokyo), Katsutoshi Takahashi (Tokyo) and Yoshihito Sugiyama (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "[Problem] To provide a manual breast pump in which a muscle load due to a repeated operation of a handle can be reduced, and in which a section contacting breast milk can be cleaned easily.[Solution] A manual breast pump includes a main body casing 31, a hood 4, a base part 32 which is held by the main body casing 31 and has a communicating part S4 connected spatially to an inner space S3, a diaphra...