Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654848 | Voice coil motor for a disc drive | Michael John Raffetto, Chul Soo Kim, Fredrick Frank Kazmierczak, Bradley D. Kelemen | 1997-08-05 |
| 5537272 | Spindle balance device for a hard disk drive assembly | Frederick Frank Kazmierczak | 1996-07-16 |
| 4360844 | Head interlock mechanism | — | 1982-11-23 |