Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6144481 | Method and system for actuating electro-mechanical ribbon elements in accordance to a data stream | Marek W. Kowarz, Darren W. Karns, Brian E. Kruschwitz | 2000-11-07 |
| 6038057 | Method and system for actuating electro-mechanical ribbon elements in accordance to a data stream | Marek W. Kowarz, Brian E. Kruschwitz | 2000-03-14 |
| 5856961 | Laser detector grating unit (LDGU) for producing focus error, a push-pull tracking error, and differential phase tracking error signals | Ronald E. Gerber | 1999-01-05 |
| 5710672 | Assembly for positioning the component parts of a laser detector grating unit (LDGU) | David Anthony Roberts | 1998-01-20 |
| 5710753 | Multi-element grating beam splitter using double refraction to reduce optical feedback and associated light source noise | — | 1998-01-20 |
| 5696749 | Dual-wavelength optical recording head utilizing grating beam splitter and integrated laser and detectors | David B. Kay | 1997-12-09 |
| 5689492 | Assembly used for precisely positioning the component parts of a laser detector grating unit (LDGU) | David Anthony Roberts, Robert J. Schomske | 1997-11-18 |
| 5677902 | Beam splitter for optical recording | — | 1997-10-14 |
| 5631885 | Waveguide-gratings used for analysis of optical beams constructed as dual-pitch double surface corrugations | — | 1997-05-20 |
| 5521995 | Segmented waveguide gratings used as optical tilt and displacement sensors | — | 1996-05-28 |
| 5511059 | Multi-element grating beam splitter with a reflection grating element for use in front facet substraction | — | 1996-04-23 |
| 5471548 | Segmented waveguide gratings used as optical recording sensors | — | 1995-11-28 |
| 5453961 | Pick-up device for optical disk readout using waveguide gratings | — | 1995-09-26 |
| 5420947 | Method for achromatically coupling a beam of light into a waveguide | Lifeng Li | 1995-05-30 |
| 5412743 | Method and apparatus for amplitude modulation of a laser beam | — | 1995-05-02 |
| 5212759 | Mode insensitive waveguide device | Glenn Eric Kohnke | 1993-05-18 |
| 4979788 | Achromatic mode-index elements for integrated optical systems | — | 1990-12-25 |
| 4948216 | Optical devices having layers of low molecular weight organic materials and methods for making | Delwyn E. Machiele | 1990-08-14 |
| 4783393 | Dye mixtures and optical recording elements containing same | Harold T. Thomas, Neil F. Haley, Michael W. Fichtner | 1988-11-08 |