DISK PLAYER, AND TURNTABLE INCORPORATING SELF-COMPENSATING DYNAMIC BALANCER, CLAMPER INCORPORATING SELF-COMPENSATING DYNAMIC BALANCER AND SPINDLE MOTOR INCORPORATING SELF-COMPENSATING DYNAMIC BALANCER ADOPTED FOR DISK PLAYER

Granted: Sep 24, 2002 Filed: Jan 20, 2000

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.