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:
Mar. 15, 2011
Filed:
Mar. 12, 2007
Noboru Koyama, Tokyo, JP;
Izumi Kariya, Kanagawa, JP;
Mitsuo Yanase, Kanagawa, JP;
Toru Morikawa, Kanagawa, JP;
Noboru Koyama, Tokyo, JP;
Izumi Kariya, Kanagawa, JP;
Mitsuo Yanase, Kanagawa, JP;
Toru Morikawa, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A thermal head includes a glass layer having a protruding section formed on one surface and a concave groove section formed on the other surface facing the protruding section, a heat generation resistor provided on the protruding section, and a pair of electrodes provided to both sides of the heat generation resistor, and a part of the heat generation resistor exposed between the pair of electrodes is defined as a heat generation section, the protruding section has a smaller curvature radius in both sides than a curvature radius in a central portion, and a width of the groove section is one of equal to and larger than a length of the heat generation section.