Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6411580 | Storing data on a medium in an optical system | Ronald G. Vitullo, Yasuhiro Yamazaki | 2002-06-25 |
| 6343061 | Optical data system and high density optical disk relating thereto | Ronald G. Vitullo, Yasuhiro Yamazaki | 2002-01-29 |