Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8408465 | Portable optical card readers | — | 2013-04-02 |
| 8033467 | Portable optical card readers | — | 2011-10-11 |
| 5268801 | Method and apparatus for effecting data transfer with high precision reference data on a rotatable storage media | Gajus Michelson, William W. Valliant | 1993-12-07 |
| 4972397 | Dithering optical data logger | Larry S. Zurbrick | 1990-11-20 |
| 4888759 | Laser optical memory system having beam combining and separating apparatus for combining and separating reading and writing laser beams | Gilbert Y. Chan | 1989-12-19 |
| 4622659 | Focus detection and control apparatus for maintaining accurate focusing in an optical memory system by detecting reflected beam diameter variations at spaced predetermined locations | Gilbert Y. Chan | 1986-11-11 |
| 4621353 | Optical memory system providing improved focusing control and improved beam combining and separating apparatus | Gilbert Y. Chan | 1986-11-04 |
| 4562568 | Beam combining and separating apparatus useful for combining and separating reading and writing laser beams in an optical storage system | Gilbert Y. Chan | 1985-12-31 |
| 4559622 | Optical memory system providing improved focus detection and control by detecting reflected beam diameter variations at spaced predetermined locations in the system | Gilbert Y. Chan | 1985-12-17 |
| 4544964 | Strobe for read/write chain | Kenneth R. Burns | 1985-10-01 |
| 4494226 | Three beam optical memory system | Edward V. LaBudde | 1985-01-15 |
| 4443870 | Optical memory system providing track following | Edward V. LaBudde | 1984-04-17 |
| 4428069 | Apparatus for preformatting an optical disk | John E. Kammerud | 1984-01-24 |
| 4428075 | Methods of preformatting an optical disk | John E. Kammerud | 1984-01-24 |
| 4417330 | Optical memory system providing improved focusing control | Edward V. LaBudde | 1983-11-22 |
| 4402061 | Preformatted optical media for use in an optical memory system | Edward V. LaBudde | 1983-08-30 |