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. 19, 2022
Filed:
Jun. 11, 2020
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Isamu Nishimura, Kyoto, JP;
Assignee:
ROHM Co., Ltd., Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/335 (2006.01);
U.S. Cl.
CPC ...
B41J 2/33515 (2013.01); B41J 2/3353 (2013.01); B41J 2/3358 (2013.01); B41J 2/3359 (2013.01); B41J 2/33585 (2013.01); B41J 2/3354 (2013.01); B41J 2/3357 (2013.01);
Abstract
A thermal print head includes: a substrate; a resistor layer supported by the substrate and including a plurality of heat generating portions arranged in a main scanning direction; a wiring layer supported by the substrate and forming an energizing path to the plurality of heat generating portions; and an insulating layer interposed between the substrate and the resistor layer, wherein the substrate has a cavity portion overlapping the plurality of heat generating portions when viewed in a thickness direction of the substrate.