Masao Ohkubo

Tokyo Cathode Laboratory Co., Ltd. engages in the manufacture and sale of materials and components for electronic equipment. It operates through the Probe Card Business and Electronic Components Business segments: The Probe Card Business segment includes parts for electron tubes, evaporation devices, implantation process parts, aluminum for etchers, and silicon electrodes. The Probe Card Business segment includes probe cards for integrated circuits, vertical probe cards, and probe pins. The company was founded in May 1950 and is headquartered in Tokyo, Japan.