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:
Apr. 01, 2008
Filed:
Jan. 24, 2005
Masatoshi Nakanishi, Kyoto, JP;
Masatoshi Nakanishi, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A thermal print head (A) has main heat producing resistor sections () formed on a substrate () and arranged in the main scan direction (X) at predetermined intervals; auxiliary heat producing resistor sections () provided with a predetermined gap in the auxiliary scan direction (Y) relative to the main heat producing resistor sections (); first electrodes () for individually connecting in series, out of the main heat producing resistor sections () and the auxiliary heat producing resistor sections (), at least main heat producing resistor sections () and auxiliary heat producing resistor sections () arranged in the auxiliary scan direction (Y); and second electrodes () for conducting electricity to the series circuits composed of the main heat producing resistor sections () and the auxiliary heat producing resistor sections () connected in series by the first electrodes(). The distance (D) in the auxiliary scan direction (Y) between each main heat producing resistor section () and each auxiliary heat producing resistor section () is greater than the length (L) in the auxiliary scan direction (Y) of each main heat producing resistor section ().