Magnetic Force on Magnetic Particles and Its Application to Electro Phtography.(共著). Studies in Applied Electromagnetics and Materials. 2000. 18. 587-590
Magnetic Force on Magnetic Particles in Development Process of Electro Photography.(共著). Proc. of 2nd Magneto-Electronics Int. Sympo. 1999. 1. 391-394
Single Phase Drive of Ultrasonic Motor for Reciprocating Motion.(共著). Proc. of Int. Conf. of Electrical Machine. 1998. 1. 385-390