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. 17, 2003
Filed:
Apr. 28, 2000
Ken Hosaka, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A ink jet recording head has a discharge port forming member, an ink supply member for supplying ink into the discharge port forming member from an ink container, an ink discharge port formed by the discharge port forming member, and discharge pressure generation means for generating a discharge pressure for discharging ink from the discharge port. A discharge port forming face of the discharge port forming member and a face of the ink supply member are substantially coplanarly connected, and a protective member is adhered over both faces. The adhering area of the protective member per unit area of the ink supply member is smaller than that on the discharge port forming face.