Advanex Inc., together with its subsidiaries, engages in the manufacture and sale of precision springs in Japan and internationally. It offers wire springs, including compression, extension, torsion, conical, and wire forming springs; and flat springs, such as precision presses, multi formings, forging presses, and insert collars. The company also provides deep drawings; insert moldings; spring assemblies; and standard products comprising tangles inserts, tangles inserts kits, LockOne, and instant lock products; and HEATNEX, a heat-generating material. The company was formerly known as Kato Spring Works Co., Ltd. and changed its name to Advanex Inc. in July 2001. The company was founded in 1930 and is headquartered in Tokyo, Japan.