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:
Nov. 18, 2025

Filed:

Apr. 25, 2022
Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Koutarou Fukuda, Kariya, JP;

Kouji Oota, Kariya, JP;

Syuzou Oda, Kariya, JP;

Takumi Okamoto, Kariya, JP;

Taro Ogura, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 3/84 (2006.01); B60J 1/00 (2006.01); B60S 1/02 (2006.01);
U.S. Cl.
CPC ...
H05B 3/84 (2013.01); B60J 1/002 (2013.01); B60S 1/026 (2013.01); H05B 2203/007 (2013.01); H05B 2203/013 (2013.01); H05B 2203/016 (2013.01);
Abstract

A film heater includes a transparent conductive film and first and second electrodes. The transparent conductive film includes a heat generating portion that generates heat when energized by the first and second electrodes. An outer edge of the heat generating portion has a short side, a long side, and first and second oblique sides. The first and second electrodes include a plurality of first and second connection portions corresponding to a plurality of first and second ports, respectively. A plurality of first and second current suppression portions is disposed to suppress flow of the current between the inside and outside of the heat generating portion through a region between the plurality of first and second ports, respectively. For each of some or all of the plurality of first ports, the current flows through the heat generating portion between the first port and at least two second ports.


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Fukuda, Koutarou. (2025). Film heater (U.S. Patent No. 12477627). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12477627

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