US Patent Issued to TAKEMOTO YUSHI on Dec. 30 for "Synthetic fiber processing agent, and synthetic fiber" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,818, issued on Dec. 30, was assigned to TAKEMOTO YUSHI K.K. (Aichi-ken, Japan).

"Synthetic fiber processing agent, and synthetic fiber" was invented by Hiroki Honda (Gamagori, Japan), Takuya Matsunaga (Gamagori, Japan) and Keiichiro Oshima (Gamagori, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a synthetic fiber treatment agent that contains a smoothing agent and a nonionic surfactant. The smoothing agent contains a condensed hydroxy fatty acid formed by condensation from a hydroxy fatty acid having a hydroxy group and a carboxy group in the molecule."

The patent was filed on Sept. 27, 2021, under Application No. 18/028,138.

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