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:
Dec. 30, 1997
Filed:
Dec. 05, 1996
Toshio Amano, Kyoto, JP;
Rohm Co., Ltd., Koyoto, JP;
Abstract
A thin film thermal printhead is provided which comprises a head substrate having a first longitudinal edge and a second longitudinal edge, a glaze layer formed on a surface of the head substrate, a patterned resistor layer formed as a thin film on the glaze layer to provide a strip of heating dots extending along the first longitudinal edge of the head substrate, and a patterned conductor layer formed on the resistor layer for selectively supplying power to the heating dots. The glaze layer extends from the first longitudinal edge toward the second longitudinal edge of the head substrate, and has a normal flat surface portion and a rounded marginal surface portion continuous with the normal flat surface. The rounded marginal surface portion extends along the first longitudinal edge of the head substrate and progressively approaches the head substrate toward the first longitudinal edge. The heating dots strip is located at least partially at the rounded marginal surface portion of the glaze layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile