Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5189355 | Interactive rotary controller system with tactile feedback | David N. Larkins, Glenn T. Yoshida | 1993-02-23 |
| 4731679 | Method and apparatus for transporting a recording medium with an adaptive velocity change profile | David O'Gwynn | 1988-03-15 |
| 4561608 | Adaptive end of tape detection apparatus and method | David O'Gwynn | 1985-12-31 |