1. General Survey on Micromechanical System Technology for Practical Use, Fuji Techno-system,1991
2. Special Feature of Micromechanisms, Proc. 1st Int. Micromechanism Symp., Tokyo;Hayashi,1993
3. New Field of Gearing: Gears for Micromechanisms, Proc. MTM '97;Hayashi,1997
4. Study on Micromechanisms, Toin Ronsou, No. 2;Hayashi,1995