ALEXANDRIA, Va., July 15 -- United States Patent no. D1,131,075, issued on June 23, was assigned to NISHIKAWA Co. Ltd. (Tokyo).
"Mattress" was invented by Yasuyuki Nishikawa (Tokyo), Takuto Nonomura (Tokyo), Hideki Wada (Tokyo), Hideaki Mogi (Tokyo), Sho Ikeda (Tokyo) and Mari Aoki (Tokyo).
The patent was filed on June 21, 2023, under Application No. D/521,350.
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