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:
Jul. 08, 2014
Filed:
Sep. 21, 2011
Keitaro Koroishi, Chiba, JP;
Noriyoshi Shoji, Chiba, JP;
Norimitsu Sanbongi, Chiba, JP;
Toshimitsu Morooka, Chiba, JP;
Keitaro Koroishi, Chiba, JP;
Noriyoshi Shoji, Chiba, JP;
Norimitsu Sanbongi, Chiba, JP;
Toshimitsu Morooka, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
In a method of manufacturing a thermal head, a groove portion is formed in one surface of at least one of a first substrate and a second substrate, and a width dimension of the groove portion is measured. The first and second substrates are bonded to each other in a stacked state so as to close an opening of the groove portion. A heating resistor is formed on a surface of the second substrate in a region opposed to the groove portion. A protective film for covering and protecting the heating resistor is formed on the surface of the second substrate. A thickness dimension of the protective film is set so as to increase with an increase in the measured width dimension of the groove portion and so as to decrease with an increase in a thickness dimension of the second substrate.