Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9348000 | Magneto optic kerr effect magnetometer for ultra-high anisotropy magnetic measurements | Ganping Ju | 2016-05-24 |
| 9103729 | Method and apparatus for determining curie temperature distribution of a sample of magnetic material | Ganping Ju, Roy William Chantrell, Xiaowei Wu, Xi Chen, Xiaobin Zhu +1 more | 2015-08-11 |
| 7916308 | Method and optical profiler | Jianmin Wang, Shih-Fu Lee | 2011-03-29 |
| 7221528 | Magnetic alignment marking of hard disks | David S. Kuo, Dan Nguyen | 2007-05-22 |
| 7092100 | Quadrature phase shift interferometer (QPSI) decoder and method of decoding | Jianmin Wang | 2006-08-15 |
| 7064841 | Method and arrangement for topographically characterizing a surface of a hard disk with distortion due to disk modes removed | Jianmin Wang, Huan Tang, Jing Gui | 2006-06-20 |
| 7050173 | Method and arrangement for removing noise and measurements of head-media spacing modulation for digital recording | Jianmin Wang | 2006-05-23 |
| 7019840 | Dual-beam interferometer for ultra-smooth surface topographical measurements | Jianmin Wang, Li-Ping Wang | 2006-03-28 |
| 7009391 | High throughput missing pattern detector for servo printed recording media | Shih-Fu Lee, David S. Kuo | 2006-03-07 |
| 6940678 | Magnetic alignment marking of hard disks | David S. Kuo, Dan Nguyen | 2005-09-06 |
| 6741357 | Quadrature phase shift interferometer with unwrapping of phase | Jianmin Wang | 2004-05-25 |
| 6483299 | Apparatus and method for measuring magnetic properties of recording mediums | Hans J. Richter, Li-Ping Wang | 2002-11-19 |
| 5999261 | Split phase high performance, high frequency, high dynamic range interferometer | Yuh Cheng | 1999-12-07 |
| 5963029 | Measuring magnetic properties in media by RMS signal processing and incremental erasure | — | 1999-10-05 |
| 5898499 | Method and apparatus for detecting surface discontinuities based on changes in an optical path length during beam scanning | — | 1999-04-27 |
| 4847558 | Non-destructive method and apparatus using DC erase field for magnetic measurement of recording disc | Robert D. Fisher | 1989-07-11 |