1. A Study of A Servomechanism for NC Machines Using 90 Degrees Phase Difference Method;Emura;Prog. Rep. of JSPE,1982
2. A Study of High Precision Servo-Spindle for Hard Gear Finishing Machines;Emura,1989
3. A Study on a High-Speed NC Gear Grinding Machine Using Screw-Shaped CBN Wheel;Emura;Jour. of Mechanistal Design, Trans. of ASME,1994