Riken Corundum Co., Ltd. engages in the manufacture and sale of coated abrasive papers, abrasive cloths, abrasive powders, office automation (OA) equipment parts, and merchandise for personal use. It operates through the following segments: Coated Abrasives Production and Sales, Office Automation (OA) Equipment Production and Sales, and Real Estate Leasing. The Coated Abrasives Production and Sales segment includes abrasive cloths, waterproof abrasive papers, RICOAZ belts, and resin belts. The OA Equipment Production and Sales segment covers rubber rollers and grip rollers. The Real Estate Leasing segment handles the leasing of real estate properties. The company was founded on December 7, 1935 and is headquartered in Konosu, Japan.