Kyocera Corporation

Isuzu Motors Limited

Noriyoshi Nakanishi

Hiroshi Takahashi

Masahiro Yamamoto

Masanobu Ishida

Kenichiro Miyahara

Shinsuke Takenishi

Michio Ohno

Yoshinori Shiraiwa

Norio Okuda

Shigetoshi Toeda

Michihiko Miyasaka

Noriaki Tateno

Hisatsugu Iizuka

Hidetoshi Mishina

Hiroaki Sonoda

A ceramic heater having a ceramic substrate, a heat-generating resistor disposed in the interior of the ceramic substrate or on the surface of the ceramic substrate and terminals connected to both the ends of the heat-generating resistor, wherein the ceramic substrate is composed of a sintered body of a nitride of an element selected from the group consisting of silicon and aluminum and the heat-generating resistor is composed of a ceramic layer containing titanium nitride (TiN) or tungsten carbide (WC).

Ceramic heater

Method and device for supplying electric current to ceramic heaters comprising heating resistors embedded in ceramic sintered bodies, being characterized in that direct current is supplied from a direct current supply circuit as the first current supply step and the direction of the direct current supplied to the heating resistors at the first current supply step is reversed by a switching circuit or alternate current is supplied as the second current supply step in order to eliminate or considerably reduce cracking of the ceramic sintered bodies of the ceramic heaters when the heaters are repeatedly used for a long time at high temperatures.

Method and device for supplying electric current to ceramic heaters

An intake burner is disclosed for use in an internal combustion engine having an air intake system including an air intake tube, comprising an outer tube adapted to be attached to the air intake tube, a heater mounted in the outer tube and made of a ceramic material with a heating resistor embedded therein. A holder surrounds the heater in spaced relation thereto and together with the heater defines a vaporizing and a combustion region around the heater for vaporizing supplied fuel along a surface of the heater and for burning vaporized fuel supplied from the vaporizing region. Fuel feed means directs fuel into the vaporizing region around the heater, and a support member attaches the heater to the outer tube.

Intake burner

Growing community of inventors

Kagoshima, Japan

Noriyoshi Nakanishi