ALEXANDRIA, Va., March 5 -- United States Patent no. 12,240,796, issued on March 4, was assigned to OTSUKA CHEMICAL Co. LTD. (Osaka, Japan).
"Crystals and production method for the same" was invented by Eriko Sato (Tokushima, Japan), Noriaki Shiina (Tokushima, Japan) and Mifuyu Ueno (Tokushima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present invention is to provide novel crystals. Provided are crystals of 3-hydroxy-N'-(1,3-dimethylbutylidene)-2-naphthoic acid hydrazide having an X-ray powder diffraction pattern comprising a peak of maximum intensity at an angle of diffraction (2Theta) of 6.1plus-minus0.2deg."
The patent was filed on Dec. 18, 2020, under Application No. 17/786,7...