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:
Nov. 30, 2004
Filed:
Jun. 30, 2003
Kouichi Adachi, Shizuoka, JP;
Isao Suzuki, Shizuoka, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
In the ink jet apparatus according to the present invention, an ink repellent layer similar to that having an ink repellent property satisfying a slide-down speed—as determined by a slide-down speed evaluation method for measuring a slide-down speed of ink droplets by immersing a test piece having the ink repellent layer formed on the surface thereof in an ink similar to another ink curable by radiation and used in the ink jet apparatus, pulling the test piece out of the ink, fixing the test piece at 45 degrees with respect to a horizontal plane, and dropping 10 to 20 &mgr;l of the ink to the fixed test piece—of 2 mm/sec or greater at 25° C. either just after immersion or 100 hours after immersion is formed on at least a peripheral surface of the nozzle which surface constitutes an ink-ejection-side surface of the orifice plate. This contributes to the stabilization of the straight ejection property of ink droplets.