Telecommunications Optical Devices Thin Film Integrated Circuits Optical Components Ultra-High Precision Thin Film Resistors Alumina Substrates (Substrates for Milli/Micro-Wave Devices) Wireless Communication Devices Thin Film Integrated Circuits Optical Components Ultra-High Precision Thin Film Resistors Alumina Substrates (Substrates for Milli/Micro-Wave Devices) Housing Al/SiC(Casting)ーSA301/SA401- Al/SiC(Infiltration Method)ーSA701ー Back Toppage