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:
Sep. 29, 2009
Filed:
Oct. 03, 2007
Katsuki Osanishi, Osaka, JP;
Katsuki Osanishi, Osaka, JP;
Kyocera Mita Corporation, Osaka, JP;
Abstract
An inkjet recording system that discharges pigment ink from a liquid droplet discharge head in which a part of wall surface of pressure chamber is formed of a piezoelectric element, wherein average surface inclination Δa (mrad) of surface of the piezoelectric element forming a part of wall surface of the pressure chamber satisfies Δa≦1050, and average volumetric particle diameter D (nm) of pigment contained in the ink satisfies 80≦D≦200. Preferably, the arithmetic average surface inclination Δa and the average volumetric particle diameter D of the pigment satisfy the following formula (1):(1/)×cos(Δ/1000)>0.003  (1).