US Patent Issued to ZEON on Jan. 28 for "Pigment composition, identification medium, and method for determining authenticity" (Japanese Inventor)

ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,186, issued on Jan. 28, was assigned to ZEON Corp. (Tokyo).

"Pigment composition, identification medium, and method for determining authenticity" was invented by Masashi Aimatsu (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pigment composition including: a first cholesteric liquid crystal pigment; and a second cholesteric liquid crystal pigment, wherein: the first cholesteric liquid crystal pigment is a pigment having: a center wavelength of a selective reflection band within a wavelength range of 400 nm or more and 800 nm or less; and a selective reflection bandwidth of 150 nm or less; the second cholesteric liquid crystal pigment is a pi...