ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,016, issued on Nov. 25, was assigned to SAKATA INX Corp. (Osaka, Japan).
"Ink kit" was invented by Hiroyuki Konishi (Osaka, Japan), Ryuta Noda (Osaka, Japan), Masaki Murakami (Osaka, Japan), Masahiro Ueki (Osaka, Japan) and Satoshi Hirakawa (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object is to obtain an ink set capable of forming images of excellent image quality even when an acidic atmosphere, arising from use of a volatile acid in a pretreatment solution, is present in the vicinity of ink nozzles, etc. As a solution, an ink set containing a pretreatment solution and an ink composition is provided, wherein: the pretreatment s...