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:
Jun. 28, 2011
Filed:
Jul. 26, 2007
Takumi Yamade, Kyoto, JP;
Takumi Yamade, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A thermal printhead (A) includes a substrate () and a heating resistor () supported by the substrate (). An electrode pattern () is formed in contact with the heating resistor () for applying driving voltage. The heating resistor () is covered with a protective film (). The protective film () includes a high thermal conductivity layer () and a low thermal conductivity layer () laminated on the high thermal conductivity layer. The low thermal conductivity layer () is positioned farther from the heating resistor () than the high thermal conductivity layer () is.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile