Mitsubishi Chemical Assigned Patent

Mitsubishi Chemical Corp., Tokyo, Japan, has been assigned a patent (11573488) developed by Shimizu, Takanori, Tokyo, Japan, for “composition for holographic recording medium, and holographic recording medium.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A holographic recording medium composition comprising component (e): a compound having an isocyanate group or an isocyanate-reactive functional group and further having a nitroxyl radical group, wherein component (e) contains component (e-1) below: component (e-1): a compound having a heterobicyclic ring structure or a heterotricyclic ring structure, the heterobicyclic ring structure or the heterotricyclic ring structure being obtained by replacing a carbon atom in a bicyclic ring structure or a tricyclic ring structure by the nitroxyl radical group.”

The patent application was filed on 2020-12-28 (17/134649).