Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7726882 | Dual seal for optimized performance | Norbert Steven Parsoneault, Robert A. Nottingham, Alexander Parkhomovsky, Jeffry Arnold LeBlanc, Troy M. Herndon | 2010-06-01 |
| 7625468 | Electrode for electrochemical machining | Alexander Parkhomovsky, Lev Mikhailovich Dvoskin, Roger A. Addy | 2009-12-01 |
| 7284910 | Capillary seal with flow restrictors | Daniel D. Dittmer, Anthony J. Aiella, Lynn Bich-Quy Le, Hans Leuthold, Alan Lyndon Grantz | 2007-10-23 |
| 6976682 | Apparatus and method for forming a rotatable ferrofluidic seal between a shaft and a hub | Donald J. MacLeod, Marten Byl, Jeffry Arnold LeBlanc, Tan Pham, Robert Alan Notingham +1 more | 2005-12-20 |
| 6819023 | Magnetizing apparatus | Donald J. MacLeod, Greg Zariphopoulos, Alain M. Cassat, Gunter Heine | 2004-11-16 |
| 6679501 | Motor with stationary shaft and high speed capillary seal | Raquib Uddin Khan, Klaus Kloeppel, Alan Lyndon Grantz, Norbert Parsoneault, Marten Byl +1 more | 2004-01-20 |
| 6614138 | Stator interconnect ring | — | 2003-09-02 |
| 6528914 | Snap on flexible printed circuit connector | Klaus Kloeppel, Steven C. Knoche | 2003-03-04 |
| 6525440 | Thermal compensation spindle for ceramic ball bearings | John W. Elsing, David Jennings, Martin F. Byl, Jeffery A. LeBlanc | 2003-02-25 |
| 6149159 | High pressure boundary seal | Klaus Kloeppel | 2000-11-21 |
| 6121701 | Snap on flexible printed circuit connector | Klaus Kloeppel, Steven C. Knoche | 2000-09-19 |
| 6104570 | Disc drive spindle motor having tuned stator with adhesive grooves | — | 2000-08-15 |
| 6084323 | Spindle motor having a magnet which is field centered relative to the stator | Gunter Heine | 2000-07-04 |
| 6057616 | Stator interconnect ring | — | 2000-05-02 |
| 6029978 | Grounding and conductivity improvement for ferrofluid seals | John C. Dunfield | 2000-02-29 |
| 6018438 | Protective magnet shield for a spindle motor | Robert A. Nottingham | 2000-01-25 |
| 5982061 | Spindle motor with two-piece shaft and connector | Alan Lyndon Grantz, Anthony Joseph Aiello, Klaus Kloeppel | 1999-11-09 |
| 5844748 | Disc drive spindle motor with controlled resistance pathway from disc to ground | John C. Dunfield, Klaus Kloeppel, Michael John Raffetto, Donald J. MacLeod, Frederick Frank Kazmierczak +1 more | 1998-12-01 |
| 5815345 | Support flange having electrical contacts to provide electrical continuity upon spindle motor mounting to base | Klaus Kloeppel, John C. Dunfield, Michael Kenneth Andrews, Clifford Jue | 1998-09-29 |
| 5801902 | Setting bearing preload utilizing thermal exspansion/contraction | Klaus D. KOEPPEL, Alan Lyndon Grantz, Steven C. Knoche | 1998-09-01 |
| 5729404 | Disc drive spindle motor with rotor isolation and controlled resistance electrical pathway from disc to ground | John C. Dunfield, Klaus Kloeppel, Michael John Raffetto, Donald J. MacLeod, Frederick Frank Kazmierczak +1 more | 1998-03-17 |
| 5664314 | Method of making a spindle motor to allow magnetic alignment between the magnet and the stator in the motor | Gunter Heine | 1997-09-09 |
| 5548458 | Support flange having electrical contacts to provide electrical continuity upon spindle motor mounting to base | Klaus Kloeppel, John C. Dunfield, Michael Kenneth Andrews, Clifford Jue | 1996-08-20 |
| 5485331 | High resistivity bearing balls for spindle motor isolation | John C. Dunfield, Klaus Kloeppel, Donald J. MacLeod, Michael John Raffetto, Frederick Frank Kazmierczak | 1996-01-16 |
| 5473484 | Apparatus for electrically grounding a rotor hub in a disc drive motor | John C. Dunfield | 1995-12-05 |