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:
Jun. 19, 2007
Filed:
Apr. 29, 2004
Applicants:
Hiroshi Sasaki, Ibaraki, JP;
Makoto Kurosawa, Ibaraki, JP;
Yoshinari Suzuki, Ibaraki, JP;
Inventors:
Assignee:
Ricoh Printing Systems, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/135 (2006.01); B05D 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an ink-jet head having an orifice ejecting an ink for forming an image, the ink-jet head further has a water repellent film for repelling the ink on a surface of the orifice, and the water repellent film has a fluorine-containing polymer resin layer and a part having a perfluoropolyether chain or a perfluoroalkyl chain bonded on the layer, whereby an ink-jet head and an ink-jet printer having a water repellent film having high water repelling property to an oil-based ink and high abrasion resistance can be provided.