Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859013 | Magneto-optical waveguide device with artificial optical anisotropy | Hans-Jürgen Schmitt, Gunter Schmitz | 1989-08-22 |
| 4859014 | Non-reciprocal optical waveguide device, particularly for use as an isolator or circulator | Hans-Jürgen Schmitt | 1989-08-22 |
| 4798434 | Optical polarization regulator having a wave-guide structure | Elke B. Pross, Gert Rabe, Wolfgang F. M. Tolksdorf, Manfred Zinke | 1989-01-17 |