Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7286757 | Optical performance monitoring device | Chiayu Ai | 2007-10-23 |
| 7145727 | Unpolarized beam splitter having polarization-independent phase difference when used as an interferometer | — | 2006-12-05 |
| 7092162 | Bandwidth enhancement device | Chiayu Ai | 2006-08-15 |
| 6981812 | Opening and closing device for capless retractable marker pen | — | 2006-01-03 |
| 6909549 | Tunable filter for optical add/drop module | Chiayu Ai, Hong Li, Dar-Yuan Song | 2005-06-21 |
| 6873482 | Magnetic recording drive with continuous magnetic servo system | Vlad Novotny | 2005-03-29 |
| 6816315 | Optical path length tuner | Chiayu Ai, Dar-Yuan Song | 2004-11-09 |
| 6714743 | Wide range tunable filter | Chiayu Ai, Chang-Tsung Lin | 2004-03-30 |
| 6587204 | Application of a step-phase interferometer in optical communication | — | 2003-07-01 |
| 6572278 | Opto-electronic device having staked connection between parts to prevent differential thermal expansion | Eric B. Grann | 2003-06-03 |
| 6566674 | Method and apparatus for inspecting substrates | David Treves, Thomas A. O'Dell | 2003-05-20 |
| 6563976 | Cost-effective wavelength division multiplexer and demultiplexer | Eric B. Grann | 2003-05-13 |
| 6487148 | Edge detection for servo signals in optical storage system | — | 2002-11-26 |
| 6462349 | Measuring spacing between two surfaces via evanescent coupling | Lily Zheng, Roger A. Hajjar, Sanjai Parthasarathi | 2002-10-08 |
| 6396783 | Mechanism for controlling spacing between optical head and storage medium in optical storage systems | Bernard W. Bell, Jr., Vlad Novotny, Hossein Moghadam, Roger A. Hajjar, Brian Tremaine | 2002-05-28 |