Issued Patents All Time
Showing 76–95 of 95 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6944112 | Heat assisted magnetic recording head with a planar waveguide | — | 2005-09-13 |
| 6944101 | Recording pole for delivering coincident heat and magnetic field | Earl Chrzaszcz Johns | 2005-09-13 |
| 6795630 | Apparatus and method for producing a small spot of optical energy | Christophe Daniel Mihalcea, Tim Rausch | 2004-09-21 |
| 6653152 | Sensor disk having radial grooves and optical assaying method using same | — | 2003-11-25 |
| 6625336 | Optical sensor having dielectric film stack | James M. DePuydt, William A. Tolbert | 2003-09-23 |
| RE37473 | Diffraction anomaly sensor having grating coated with protective dielectric layer | — | 2001-12-18 |
| 6320991 | Optical sensor having dielectric film stack | James M. DePuydt, William A. Tolbert | 2001-11-20 |
| 6277653 | Optical assaying method and system having movable sensor with multiple sensing regions | Richard R. Ollmann | 2001-08-21 |
| 6100991 | Near normal incidence optical assaying method and system having wavelength and angle sensitivity | — | 2000-08-08 |
| 5994150 | Optical assaying method and system having rotatable sensor disk with multiple sensing regions | Richard R. Ollmann | 1999-11-30 |
| 5986762 | Optical sensor having optimized surface profile | — | 1999-11-16 |
| 5986997 | Updatable optical data storage disc having reduced crosstalk between tracks, and drive for same | — | 1999-11-16 |
| 5955378 | Near normal incidence optical assaying method and system having wavelength and angle sensitivity | — | 1999-09-21 |
| 5925878 | Diffraction anomaly sensor having grating coated with protective dielectric layer | — | 1999-07-20 |
| 5751482 | Achromatic polarization-rotating right-angle prism system | — | 1998-05-12 |
| 5639567 | Exchange-coupled direct overwrite magneto-optic recording media | — | 1997-06-17 |
| 5620792 | Magneto-optic recording medium having constant reflectance over a range of wavelengths | — | 1997-04-15 |
| 5508982 | Method for recording on a magneto-optic storage medium having two recording layers | — | 1996-04-16 |
| 5414678 | Magneto-optic recording medium having two recording layers, and drive for same | — | 1995-05-09 |
| 5087532 | Direct-overwrite magneto-optic media | — | 1992-02-11 |