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. 01, 2009
Filed:
May. 16, 2008
Yoshinari Suzuki, Ibaraki, JP;
Hiroshi Sasaki, Ibaraki, JP;
Yoshinari Suzuki, Ibaraki, JP;
Hiroshi Sasaki, Ibaraki, JP;
Ricoh Printing Systems, Ltd., Tokyo, JP;
Abstract
A method for producing an inkjet head for jetting an ink from a nozzle that is formed on a nozzle main body formed of a metal material, the method includes smoothening a surface of the nozzle main body, applying a silica sol solution to the nozzle main body so as to form a silica sol film, wherein the silica sol solution has a concentration that is controlled to avoid a nozzle clogging in the nozzle main body, heating the silica sol film formed on the nozzle main body to thereby convert the silica sol film into an SiOfilm, applying an ink repellent agent solution to the SiOfilm and drying to thereby form an ink repellent film, wherein the ink repellent agent solution is prepared by dissolving a compound having an alkoxysilane residue at an end of a perfluoro polyether chain in a solvent.