US Patent Issued to MITSUBISHI PENCIL on April 15 for "Liquid storage member for coating tools" (Japanese Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,215, issued on April 15, was assigned to MITSUBISHI PENCIL COMPANY Ltd. (Tokyo).

"Liquid storage member for coating tools" was invented by Saki Tanaka (Shinagawa-ku, Japan), Takayuki Yamaguchi (Osaka, Japan) and Yuichi Inagawa (Chiyoda-ku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid storage includes at least three layers, an inner layer made of paper base material and an intermediate layer of a paper base laminate having a metal layer or a silica vapor deposition layer formed on the outer surface side of the paper-based inner layer, and an outer layer made of paper base material formed on the outer surface side of the intermediate l...