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:
Feb. 06, 2001
Filed:
Jul. 22, 1998
Katsuto Nagano, Yokohama, JP;
Masato Susukida, Chiba, JP;
Yoshio Saita, Nakakoma Gun, JP;
Jun Hirabayashi, Chiba, JP;
Jun Hagiwara, Nakakoma Gun, JP;
TDK Corporation, Tokyo, JP;
Abstract
A thermal head including a protection layer having mutually opposed first and second surfaces, said first surface having a printing surface which is brought into contact with a heat sensitive record medium and is protruded from the remaining portion of the first surface of the protection layer, a heat generating sections including resistors and electrodes connected to the electrodes and provided on said second surface of the protection layer at said protruded printing surface, a heat control section including a heat storage layer and a heat conduction layer and provided on said heat generating section, and a driving IC connected to said electrodes. In order to improve the mechanical strength of the thermal head, a reinforcing layer made of a glass is provided on said first surface of the protection layer except for said printing surface such that a surface of said reinforcing layer is not higher than said first surface of the protection layer at said protruded printing surface.