Patents by Inventor Fredrick Frank Kazmierczak

Fredrick Frank Kazmierczak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Voice coil motor for a disc drive
    Patent number: 5654848
    Abstract: A reduced-height structure for a voice coil motor which forms a portion of the actuator in a disc drive data storage device includes a through opening in the base member of the disc drive housing within which the lower pole piece of the voice coil motor is mounted. A top pole piece of the Voice coil motor is mounted directly to the top cover of the disc drive housing and proper spacing between the top pole piece and the voice coil motor components mounted to the base a member is determined and maintained by a precisely machined surface in the base member. The lower pole piece is preferably mounted to the base member with cold-flowed brass rivets.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: August 5, 1997
    Assignee: Seagate Technology, Inc.
    Inventors: Michael Alan Maiers, Michael John Raffetto, Chul Soo Kim, Fredrick Frank Kazmierczak, Bradley Kelemen