Hiroyuki Yoshimura

Input/output characteristic measuring device and method of analog circuit including operational amplifier

Temperature measurement device of power semiconductor device, and power semiconductor module using the same

Air-core type insulation transformer, and signal transmission circuit and power converter using the same

Master disc for magnetic transfer, and its manufacturing method

Noise elimination circuit, signal transmission circuit using isolation transformer, and power converter

Power semiconductor module, temperature measuring apparatus, and temperature-measuring method

Showcase managing device and showcase system

Signal transmission circuit and power conversion apparatus

Device testing apparatus and contact

Temperature measurement device of power semiconductor device