Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8737001 | Bit patterned magnetic storage medium | Sundeep Chauhan, Mehmet Fatih Erden, Qiang Ling | 2014-05-27 |
| 7706092 | Null servo pattern for bit-patterned media | Qiang Ling, Mehmet Fatih Erden, Sundeep Chauhan | 2010-04-27 |
| 7688535 | Extracting position information using user data | Mehmet Fatih Erden, Rene Johannes Marinus van de Veerdonk | 2010-03-30 |
| 7567403 | Bi-directional servo track writing to minimize sidewall writing at high skew angles | Haoying Sun, Thomas Zirps | 2009-07-28 |
| 7387848 | Recording media with mechanically patterned landing zone | James E. Angelo, Mukund Rao, Timothy F. Ellis, David S. Kuo, Serge Fayeulle | 2008-06-17 |
| 7349167 | Utilizing track identification fields for timing recovery | Mehmet Fatih Erden, Richard Lyle Keizer, Timothy F. Ellis | 2008-03-25 |
| 7154699 | High bandwidth large stroke spin-stand | Pradeep K. Subrahamanyan, Patrick John Korkowski, Waleed A. Farahat, Steven C Ehret, Gregg J. Severson +3 more | 2006-12-26 |
| 7064914 | Position error signal quality | Mehmet Fatih Erden, Richard Lyle Keizer, Timothy F. Ellis | 2006-06-20 |
| 7023631 | Bi-frequency servo pattern | Huaan Zhang | 2006-04-04 |
| 6952320 | Virtual tracks for repeatable runout compensation | Brian Pollock, Brian W. Sudman, James H. McGlennen, Reed D. Hanson | 2005-10-04 |
| 6878426 | Recording media with mechanically patterned landing zone | James E. Angelo, Mukund Rao, Timothy F. Ellis, David S. Kuo, Serge Fayeulle | 2005-04-12 |
| 6879458 | Method for thermally writing servo patterns on magnetic media | Li-Ping Wang, Donald E. Curtiss | 2005-04-12 |
| 6627254 | Method of manufacturing a recording media with mechanically patterned landing zone | James E. Angelo, Mukund Rao, Timothy F. Ellis, David S. Kuo, Serge Fayeulle | 2003-09-30 |
| 6614608 | Buried servo patterned media | Karl A. Belser | 2003-09-02 |
| 6608477 | APPARATUS AND METHOD FOR ALTERING TRACK SCAN DATA BASED ON HEAD WIDTH RELATIVE TO DATA TRACK WIDTH AND DETERMINING THE POSITION ERROR SIGNAL FROM THE ALTERED TRACK SCAN DATA TO QUALIFY THE HEAD IN A DATA STORAGE DEVICE | Haoying Sun | 2003-08-19 |
| 6556933 | Transducer instability detection in a digital channel | Timothy F. Ellis | 2003-04-29 |
| 6538838 | Method and apparatus for closed-loop spin-stand testing | James H. McGlennen, Albert van der Schans | 2003-03-25 |
| 6510752 | Method and apparatus for testing microactuators on a suspension assembly | James H. McGlennen, Albert van der Schans | 2003-01-28 |
| 6510015 | Magnetic disc having physical servo patterns with a magnetic carrier, and method of making and using the same | Timothy F. Ellis, Patrick John Korkowski, Karl A. Belser | 2003-01-21 |
| 6490111 | Method and apparatus for refreshing servo patterns in a disc drive | — | 2002-12-03 |
| 6490117 | Method of thermally printing servo patterns on magnetic media | Li-Ping Wang, Donald E. Curtiss | 2002-12-03 |
| 6480353 | Fixed disc drive cartridge and playback device | Zine-Eddine Boutaghou | 2002-11-12 |
| 6469849 | Field ratioing demodulation circuit for a null-type servo pattern | Timothy F. Ellis | 2002-10-22 |
| 6426845 | Asynchronous analog demodulator and method for a null-type servo pattern | Timothy F. Ellis | 2002-07-30 |
| 6411459 | Advanced servo writing method for hard disc drives | Karl A. Belser | 2002-06-25 |