Patents Represented by Law Firm Fitzpatrick, Cella, Harpr & Scinto - Justia Patents Search

Patents Represented by Law Firm Fitzpatrick, Cella, Harpr & Scinto

Ink for two-part liquid system recording, and ink set, ink container, recording unit, recording process and recording apparatus using the same

Patent number: 5866638

Abstract: Disclosed herein is a recording ink suitable for use in image recording together with a liquid composition containing a cationic substance, wherein the recording ink comprises a coloring material and a water-soluble polymeric compound which exhibits nonionic properties in the ink and has an alicyclic, nitrogen-containing heterocycle.

Type: Grant

Filed: November 27, 1996

Date of Patent: February 2, 1999

Assignee: Canon Kabushiki Kaisha

Inventors: Masako Shimomura, Hiromichi Noguchi, Isao Kimura, Hiroyuki Maeda, Hidemi Kubota