US Patent Issued to Ehime Prefecture, Daio Paper on Sept. 16 for "Water-based paint, ceramics, and method of decoration" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,932, issued on Sept. 16, was assigned to Ehime Prefecture (Ehime, Japan) and Daio Paper Corp. (Ehime, Japan).

"Water-based paint, ceramics, and method of decoration" was invented by Kenji Nakamura (Ehime, Japan), Toshihiro Iwai (Ehime, Japan) and Junya Okawa (Ehime, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Ceramics are capable of reducing color irregularities and uneven coating, hard to dissolve into glaze, and excellent in fixation. A water-based paint contains a coloring material, first cellulose nanofibers having a lignin content of 20 to 40 mass % and a water retention of 150 to 300%, and second cellulose nanofibers having a higher ...