JTEKT Thermo Systems Corporation (formerly Koyo Thermo Systems Co., Ltd.) was established in 1967 as a specialized thermal processing manufacturer originating from the Lindberg business division of Koyo Seiko. The company is a member of the JTEKT Corporation (Toyota Group).
Headquartered in Tenri, Nara Prefecture, the company operates production factories and research facilities certified to ISO 14001, supplying heat treatment systems used worldwide across the semiconductor, flat-panel display, passive electronic components, and automotive manufacturing industries.