Kawasumi Laboratories, Inc. engages in the manufacture and sale of medical devices and pharmaceuticals. It operates through the Hemodialysis and Plasmapheresis; and Blood Transfusion and Endovascular segments. The Hemodialysis and Plasmapheresis segment develops, produces, and sells dialyzers, blood tubing lines, arteriovenous fistula needles, and isotonic sodium chloride solutions. It also offers removal of pathogenic factors from blood by extracorporeal circulation. The Blood Transfusion and Endovascular segment offers infusion therapy products, blood bags, apheresis kits, and intravenous sets. The company was founded by Takumi Kawano on December 1, 1954 and is headquartered in Tokyo, Japan.