TATEYAMA Kagaku Ind. Co, Ltd. was established 1958 in Toyama, Japan.
TATEYAMA is a manufacturer who develops and produces high-classed thick-film chip thermistors. The chip thermistors are based on an Alumina substrate (Al2O3) and protected by a glass coating against humidity. All products are characterized by a high mechanical strength, superior thermal responsiveness, high reliability and extreme long life time at excellent price/performance ratio.
All products are certified by AEC-Q200 and produced on TS16949 standard.

http://www.tateyama.jp

SEMITEC Corporation was established 1958 in Tokyo, Japan.
SEMITEC is a manufacturer who develops and produces high-classed leaded and epoxy coated thermistors based on a semiconducting ceramic resistor. All products are characterized by a high mechanical strength, superior thermal responsiveness, high reliability and extreme long life time at excellent price/performance ratio.
http://www.semitec.co.jp

TEWA Sensors was established 1964 in Lublin, Poland.
TEWA is a manufacturer who develops and produces high-classed assembled and customized temperature sensors. TEWA Temperature Sensors offers a wide range of standard and customized temperature sensors designed according to individual customer´s requirements covering applications in temperature range between -100°C and +600°C.
All products are characterized by a high mechanical strength, superior thermal responsiveness, high reliability and extreme long life time at excellent price/performance ratio.
http://www.tewa-sensors.com