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:
Jul. 14, 2015

Filed:

Jan. 23, 2013
Applicant:

Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;

Inventors:

Hiroyuki Tsujihara, Nagoya, JP;

Tsuyoshi Maruyama, Aichi-ken, JP;

Katsumi Inukai, Iwakura, JP;

Assignee:

BROTHER KOGYO KABUSHIKI KAISHA, Nagoya-Shi, Aichi-Ken, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01); H05B 3/02 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
H05B 3/02 (2013.01); G03G 15/2003 (2013.01); G03G 15/2007 (2013.01); G03G 15/80 (2013.01);
Abstract

A heating device includes: an alternating current (AC) power supply line configured to supply AC current from an AC power supply; a heat generation unit configured to generate heat in accordance with the AC current; an energization regulation unit configured to regulate energization time of the AC current to the heat generation unit; a switching unit configured to switch a connection state between the AC power supply and the heat generation unit; and a high-voltage protection unit, which is connected between the AC power supply line at a rear stage of the switching unit, and which is configured to protect the energization regulation unit against an abnormal input high voltage.


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