Toshiba Lighting & Technology Corporation

Akio Tsubouchi

Makoto Sakai

Satoko Kato

Masahiro Doi

Masahiko Tamai

Kousuke Ueno

Tsuyoshi Ohashi

Shinjiro Aono

Kentaro Kimura

Takanobu Ueno

Yoshitatsu Matsui

A heater according to embodiments includes: a base portion which contains metal, extends in a first direction, and has a first surface and a second surface facing the first surface; an insulating layer which is provided on the first surface side of the base portion; a heating element which is provided on the insulating layer and extends in the first direction; and a protection portion which covers the heating element. A peripheral edge of the base portion in a second direction intersecting the first direction extends in a third direction intersecting the first direction and the second direction.

Heater and image forming apparatus

Provided is a heater including: a substrate that has electrical conductivity; a first insulation portion that is provided on a first surface of the substrate, has an insulation property; at least one heat generation body that is provided on the first insulation portion; a second insulation portion that is provided on a second surface of the substrate which is opposite to the first surface, has an insulation property; at least one detection unit that is provided on at least one of the first insulation portion and the second insulation portion; and a first wiring which is provided on at least one of the first insulation portion and the second insulation portion, and in which one end is electrically connected to one terminal of the detection unit and the other end is electrically connected to the substrate having the electrical conductivity.

A heater according to an embodiment includes a substrate that is formed of a heat resistant insulating material, a heating resistor that is provided on the substrate, a conductor that is provided on the substrate and that is electrically connected to the heating resistor, and a coating film that covers the heating resistor and the conductor. A plurality of groove portions are arranged on an end surface of the substrate along an outer periphery of the substrate, and a coefficient A=100&#xd7;D/(T&#xd7;P) satisfies 0.4&#x2264;A&#x2264;0.9 where T [&#x3bc;m] is the thickness of the substrate, D [&#x3bc;m] is the depth of the groove portion in a thickness direction of the substrate, and P [&#x3bc;m] is a pitch between the groove portions.

Heater, image forming apparatus, and manufacturing method of heater

Growing community of inventors

Yokosuka, Japan

Akio Tsubouchi