US Patent Issued to SEIKO EPSON on June 10 for "Ink jet ink set, ink jet recording method, and ink jet recording apparatus" (Japanese Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,801, issued on June 10, was assigned to SEIKO EPSON Corp. (Japan).

"Ink jet ink set, ink jet recording method, and ink jet recording apparatus" was invented by Kiyomi Kumamoto (Shiojiri, Japan), Yusuke Mizutaki (Shiojiri, Japan), Jun Ito (Shimosuwa, Japan) and Tomohito Nakano (Shiojiri, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ink jet ink set includes: an aqueous dye ink and an aqueous pigment ink, the ink jet ink set is an ink set to be used for an ink jet recording apparatus which has a first ejection port to eject the aqueous dye ink, a second ejection port to eject the aqueous pigment ink, and a cap to collectively cap the first e...