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, 2010
Filed:
Jun. 27, 2007
Kazuaki Shibata, Kawasaki, JP;
Takahiro Matsui, Yokohama, JP;
Ichiro Saito, Yokohama, JP;
Takuya Hatsui, Tokyo, JP;
Sakai Yokoyama, Kawasaki, JP;
Teruo Ozaki, Yokohama, JP;
Kazuaki Shibata, Kawasaki, JP;
Takahiro Matsui, Yokohama, JP;
Ichiro Saito, Yokohama, JP;
Takuya Hatsui, Tokyo, JP;
Sakai Yokoyama, Kawasaki, JP;
Teruo Ozaki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
For providing a base for a liquid discharge head having an internal surface of a liquid flow path and a discharge port, suppressed in swelling by liquid and having high precision and high reliability, the base including a base member, an energy generating element for discharging a liquid, formed on the base member, and a resin structure having a liquid discharge port for discharging the liquid and disposed on the base member so as to cover the energy generating element, is provided with a protective layer. The protective layer is formed by a catalytic chemical vapor deposition on a surface of the resin structure in which the liquid discharge port is opened.