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:
Dec. 16, 2025
Filed:
Oct. 13, 2022
Denso Corporation, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A heater device includes a heat generating portion formed so as to be adjacent to one surface of an insulating substrate and configured to generate heat, and a heat equalizing portion arranged between adjacent heat generating portions and configured to diffuse the heat of the heat generating portion. The heat generating portion has a linear shape, and at least one of a distance between one of the adjacent heat generating portions and the heat equalizing portion and a distance between the other of the adjacent heat generating portions and the heat equalizing portion is equal to or less than a line width of the heat generating portion. In the heat equalizing portion, a distance between one end of one of the adjacent heat generating portions and the other end of the other of the adjacent heat generating portions is longer than the line width of the heat generating portion.