ALEXANDRIA, Va., Jan. 20 -- United States Patent no. D1,109,866, issued on Jan. 20, was assigned to USUI Co. LTD. (Shizuoka, Japan).
"Fan blades" was invented by Shinichiro Yamamoto (Shizuoka, Japan) and Yoshinobu Iida (Shizuoka, Japan).
The patent was filed on Sept. 25, 2023, under Application No. D/522,496.
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