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:
Oct. 31, 1995
Filed:
Jan. 12, 1994
Hiroto Matsuda, Ebina, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid jet recording head comprises plural discharge port groups and a corresponding plurality of liquid chambers for containing liquid to be discharged from the discharge ports. Each of the plural discharge ports has an opposing heat generating element, all of the heat generating elements being disposed on a single substrate having supply holes therein to supply liquid to the liquid chambers. The heat generating elements, being opposed to the discharge ports, are also disposed in groups, each having a common electrode and individual electrodes for the multiple heat generating elements in the group. The supply holes are located in the same area of the substrate as the individual electrodes, thus making the head compact.