1. Ultra-Fine Finishing of Sapphire Single Crystal;Namba;Annals of CIRP,1977
2. Mechanism and Some Applications of Ultra-Fine Finishing;Namba;Annals of CIRP,1978
3. A Chemo-Mechanical Ultrafine Finishing of Polycrystalline Materials;Namba;Annals of CIRP,1979
4. Namba, Y. and Tsuwa, H., 1980, Float Polishing of Mn-Zn Ferrites and Characteristics of Finished Surfaces, Proc. of 4th Int. Conf. Prod. Eng., Tokyo: 1017-1022
5. Namba, Y. and Yonezawa, T., 1982, Polishing Method, U.S. Patent 4,358,295