Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4933795 | Floppy disc read and write head having two separate read and write cores for multiple track density and recording frequencies | — | 1990-06-12 |
| 4722012 | Disc drive arrangement for a hard disc cartridge having a carriage for accurately positioning a head relative to the cartridge | George Toldi, Ronald A. Crain, Dominic Mercurio | 1988-01-26 |
| 4717981 | Hard disc cartridge arrangement with an automatically activated door | Dominic Mercurio | 1988-01-05 |
| 4683506 | Disc drive arrangement for a hard disc cartridge with a read/write head retract mechanism | George Toldi, Ronald A. Crain, Dominic Mercurio | 1987-07-28 |
| 4504879 | Disc drive arrangement | George Toldi, Ronald A. Crain | 1985-03-12 |
| 4503474 | Disc drive cartridge arrangement | — | 1985-03-05 |
| 4221003 | Bubble domain relational data base system | Hsu Chang | 1980-09-02 |