Matsushita Electric Industrial Co., Ltd.

Fumio Hosomi

Kiyotaka Wasa

Atsushi Nishino

Koichi Kugimiya

Tsuneharu Nitta

Shigeru Hayakawa

Takeshi Nagai

Yasuo Wakahata

Yoshihiro Matsuo

Shigeru Eayakawa

Masazumi Katase

Tomohiro Yashiki

Environmental condition sensor

A ceramic sensor device is disclosed which comprises a sensing element of a ceramic material and electric conductors for connection to external circuit which are tightly embedded within a ceramic insulating body. The solid state sensor device having an excellent capability to withstand detrimental conditions such as a high temperature, rapid temperature change and mechanical shocks is provided. The sensor is advantageously used as a temperature sensor, a moisture sensor and a gas sensor for detecting oxidizing and reducing gas. Above all, the sensor is suited as a temperature sensor device for detecting temperature of exhaust gas purifying catalyst used in motor vehicles.

Ceramic type sensor device

An alumina body having a conductive coating with a smooth surface, is made up of a conductive layer and a cementing layer sandwiched between the conductive layer and the surface of the alumina. The thus coated alumina body can advantageously be used e.g. for a pickup stylus for a video disc playback system of the capacitance variation type.

Stylus for capacitive videodisc

A resistive film composition consisting essentially of AlN and solid solution of TiN and ZrN and a method of making the same by means of cathodic sputtering.

Method of making resistive films

Growing community of inventors

Moriguchi, Japan

Fumio Hosomi