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. 06, 2010
Filed:
Jun. 13, 2006
Applicant:
Takumi Yamade, Kyoto, JP;
Inventor:
Takumi Yamade, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/335 (2006.01);
U.S. Cl.
CPC ...
Abstract
A thermal printhead (A) includes an insulating substrate (), a glaze layer (), a resistor layer (), an electrode layer () and a protective layer (). The electrode layer () has a two-layer structure made up of a lower first electrode layer () and an upper second electrode layer (). The resistor layer () includes a heating portion (). The heating portion () is exposed from both the first electrode layer () and the second electrode layer () and is positioned on a bulging portion () of the glaze layer ().