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. 29, 1996
Filed:
Nov. 23, 1994
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A device for use with a liquid jet recording head, and such a head, include a substrate having a semiconductor functional element, an electrothermal transducer electrically connected to the semiconductor functional element for generating thermal energy to be utilized to discharge liquid from the liquid jet recording head, and an insulating layer disposed on the semiconductor functional element and having a contact hole. An electrode is disposed within the contact hole and another insulating layer is disposed on the electrode and has a through hole. The transducer is disposed on the other insulating layer and has a resistor layer and a pair of electrodes, and that resistor layer includes a portion disposed between the electrode within the contact hole and one of the pair of electrodes within the through hole.