S. Takeda

Free vibration of coil springs of arbitrary shape

Sadahiko Takeda, Kosuke Nagaya, Yoshitaka Nakata, 1986 .

Thrust bearing using a magnetic fluid lubricant under magnetic fields

K. Nagaya, S. Ikai, S. Takeda, 1993 .

Behavior of a New Type Dynamic Vibration Absorber Consisting of Three Permanent Magnets

Hiroyuki Kojima, Sadahiko Takeda, Izumo Yamakawa, 1976 .