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:
Aug. 01, 2000
Filed:
Apr. 25, 1994
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording head is provided with a plurality of ink pathways and a plurality of ejection outlets in communication with the ink pathways. The ink jet recording head includes (a) a support member provided with a plurality of energy generating elements capable of generating energy to be utilized for ejecting ink through the ejection outlets, the energy generating elements being disposed in accordance with the ejection outlets; (b) a grooved top plate provided with a plurality of grooves to establish the ink pathways in accordance with the energy generating elements of the support member; and (c) a protruded member which is protruded above the surface of the grooved top plate. An ink cartridge includes the ink jet recording head and an ink container. An ink jet recording apparatus includes a control mechanism and the ink cartridge.