Seiken Co., Ltd.

Seiken Co. Limited is a manufacturer and distributor based in Tokyo, Japan, founded in 1984, producing electronic component testing devices. The company mainly builds two contact probe types: standard contact probes for testing printed circuit boards and electronic components, and double plunger contact probes for semiconductor testing. In the test fixture field it develops flat panel lighting inspection units for flat panel displays used in smartphones, cameras and car navigation. Its range also includes semiconductor inspection devices, electronic component inspection gadgets, spring contact probes, probe cards, Kelvin probes, test probes, hand presses, contact pins and plunger pins.