Kyocera Corporation

Hiroshi Fure

Koichi Nagasaki

Kyoji Uchiyama

In a ceramic heater having a plate-like body made of a ceramic, heating element in one main face of the plate like body, and an electric supply portion to be electrically connected with the heating element, it has been a problem that the temperature is uneven if bent portions are formed in heat generating patterns. The ceramic heater simultaneously satisfying the following: 0.15&lE;S&lE;0.85, 0.3&lE;P&lE;6.71&times;S &plus;1.52, and 0.3&lE;G&lE;6.71&times;(1&minus;S) &plus;1.55, in which the reference character S denotes the surface area of the heating element in optional 10 mm square region of the effective heat generation area having the heating element therein; the surface ratio S denotes S&equals;S /100 mm , the reference character P denotes the width of the heating element: and the reference character G denotes the gap between the heating element.

Growing community of inventors

Kokubu, Japan

Hiroshi Fure