The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2004
Filed:
Mar. 26, 2002
Tomomi Yoshizawa, Tokyo, JP;
Yasuhiko Kawashima, Saitama, JP;
Hirotaka Iijima, Tokyo, JP;
Kenichi Ohkubo, Tokyo, JP;
Konica Corporation, Tokyo, JP;
Abstract
An ink-jet recording method of forming an image with an ink-jet head, wherein the ink-jet head includes an ink chamber, an electric actuator provided in the ink chamber and an insulating layer covering the electric actuator, including steps of: feeding an ink containing a coloring material and a water-soluble solvent into ink chamber, and applying a driving voltage with a driving frequency of 10 kHz to 55 kHz onto the electric actuator so that the ink is jetted from the ink chamber so as to form the image; wherein the thickness of the insulating layer is 0.1 &mgr;m to 10 &mgr;m, and the concentration of oxygen dissolved in the ink is 4 ppm or less.