ALEXANDRIA, Va., July 3 -- United States Patent no. 12,348,944, issued on July 1, was assigned to FOSTER ELECTRIC COMPANY Ltd. (Tokyo).
"Diaphragm for electroacoustic transducer" was invented by Hisami Kajiwara (Tokyo) and Masahiro Miwa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An aspect of the present invention is directed to a diaphragm for an electroacoustic transducer, and according to the diaphragm for an electroacoustic transducer, in a base material made of a fiber material mainly composed of cellulose fibers, a mixed layer in which the fiber material and silk nanofibers are mixed is formed."
The patent was filed on June 2, 2021, under Application No. 17/927,081.
*For further information...