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. 30, 2010
Filed:
Aug. 27, 2007
Takumi Yamade, Kyoto, JP;
Masatoshi Nakanishi, Kyoto, JP;
Takumi Yamade, Kyoto, JP;
Masatoshi Nakanishi, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A thermal printhead (A) includes an insulating substrate (), a glaze (), a plurality of pairs of first and second electrodes (A,B) and heating resistors (). Each of the heating resistors () includes a heating portion () spaced apart from the first electrode (A) and the second electrode (B). The respective ends (A,B) of the electrodes (A,B) are embedded in the glaze (). An insulating film () is provided between the heating portion () of each heating resistor () and the glaze (). The hardness of the insulating film () is higher than that of the glaze () and lower than that of the heating resistor (). The thermal conductivity of the insulating film () is higher than that of the glaze () and lower than that of the heating resistor ().