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. 26, 1997
Filed:
Sep. 24, 1996
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
To realize a high-quality and high-speed printing which can sufficiently comply with high definition, a thermal head having a high heat resistance and excellent thermal responsivity comprises a high thermal conductivity substrate, a heat accumulating layer formed on the surface of the substrate, a plurality of heater elements formed on the surface of the heat accumulating layer in line, a common electrode and an individual electrode energizing each of the heater elements, and a protective layer formed so as to cover the heat accumulating layer, the heater elements and the electrodes, wherein a stress-resistant layer composed of an insulating high-modulus ceramic is provided on the surface of the heat accumulating layer.