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.

Date of Patent:
May. 09, 2023

Filed:

Sep. 09, 2021
Applicant:

Rohm Co., Ltd., Kyoto, JP;

Inventor:

Goro Nakatani, Kyoto, JP;

Assignee:

ROHM CO., LTD., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/335 (2006.01); B41J 2/345 (2006.01); B23K 26/362 (2014.01);
U.S. Cl.
CPC ...
B41J 2/3359 (2013.01); B23K 26/362 (2013.01); B41J 2/335 (2013.01); B41J 2/3351 (2013.01); B41J 2/3352 (2013.01); B41J 2/3353 (2013.01); B41J 2/345 (2013.01);
Abstract

The present disclosure provides a method for manufacturing a thermal print head. The method includes: forming an electrode layer on a substrate; and forming a resistor layer including a plurality of heat generating portions connected to the electrode layer. The electrode layer includes a plurality of individual electrodes including a plurality of first striped portions extending in a secondary scan direction and spaced apart in a main scan direction, and a common electrode including a plurality of second striped portions extending in the secondary scan direction. The forming of the resistor layer includes: a coating process of applying a resistor paste in a stripe that overlaps the first striped portions and the second striped portions; a firing process of firing the resistor paste to form a resistor film; and a removal process of removing a removal region in the resistor paste or the resistor film.


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