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:
Nov. 22, 1994
Filed:
Jan. 24, 1992
Applicant:
Inventors:
Hideo Taniguchi, Kyoto, JP;
Hiroaki Onishi, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
346 / ; 29611 ;
Abstract
The present invention provides a thermal head including a substrate of alumina, a glaze layer formed on the substrate and patterning resistor and electrode layers on the glaze layer. The thermal head is of a whole glaze type in which a heating section is formed on the glaze layer at or adjacent to the edge portion thereof or of a partial glaze type in which a heating section is formed on the glaze layer at or adjacent to its partially cut edge portion. Thus, the thermal head can print more clearly.