Issued Patents All Time
Showing 25 most recent of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8416525 | Magnetic media formatted with an intergrated thin film subgap subpole structure for arbitrary gap pattern magnetic recording head | Matthew P. Dugas | 2013-04-09 |
| 7832084 | Methods for recording servo information | Matthew P. Dugas, Gregory Lawrence Wagner | 2010-11-16 |
| 7710675 | Apparatuses and methods for pre-erasing during manufacture of magnetic tape | Matthew P. Dugas | 2010-05-04 |
| 7576949 | Servo track magnetic recording head for pre-erasing magnetic tape | Matthew P. Dugas | 2009-08-18 |
| 7511907 | Stepped time based servo pattern and head | Matthew P. Dugas | 2009-03-31 |
| 7450341 | Intergrated thin film subgap subpole structure for arbitrary gap pattern magnetic recording heads and method of making the same | Matthew P. Dugas | 2008-11-11 |
| 7393066 | Servo systems, servo heads, servo patterns for data storage especially for reading, writing, and recording in magnetic recording tape | Matthew P. Dugas, Gregory Lawrence Wagner | 2008-07-01 |
| 7391587 | Servo systems, servo heads, servo patterns for data storage especially for reading, writing, and recording in magnetic recording tape | Matthew P. Dugas, Gregory Lawrence Wagner | 2008-06-24 |
| 7301716 | Stepped time based servo pattern and head | Matthew P. Dugas | 2007-11-27 |
| 7283317 | Apparatuses and methods for pre-erasing during manufacture of magnetic tape | Matthew P. Dugas | 2007-10-16 |
| 7106544 | Servo systems, servo heads, servo patterns for data storage especially for reading, writing, and recording in magnetic recording tape | Matthew P. Dugas, Gregory Lawrence Wagner | 2006-09-12 |
| 6947247 | Large angle azimuth recording and head configurations | Matthew P. Dugas | 2005-09-20 |
| 6330123 | Head assembly having a single pass servo writer | Robert J. Youngquist, Hung T. Tran | 2001-12-11 |
| 6134070 | Encoded servo track configurations, servo writer and systems/method regarding same | Hung T. Tran, Robert J. Youngquist, Alan R. Olson, Richard W. Molstad, Gary D. Moeller +2 more | 2000-10-17 |
| 6122147 | Negative pressure head contour in a linear tape recording system with tape deforming cavity | A. Saeed Fahimi | 2000-09-19 |
| 6091565 | Head assembly having a single pass servo writer | Robert J. Youngquist, Hung T. Tran | 2000-07-18 |
| 5946156 | Tape servo system and methods, write/read heads, and servo track configurations regarding same | Robert J. Youngquist, Hung T. Tran | 1999-08-31 |
| 5786967 | Tape cartridge including an indication device to distinguish between cartridges having different characteristics but nearly identical physical characteristics | Sten R. Gerfast, Eugene S. Johnson, Eddie T. Morioka, Robert W. Tapani | 1998-07-28 |
| 5609948 | Laminate containing diamond-like carbon and thin-film magnetic head assembly formed thereon | Moses M. David | 1997-03-11 |
| 5572378 | Direct file access system for magnetic tape | Robert E. Wolff, Robert J. Youngquist | 1996-11-05 |
| 5541793 | Bidirectional thin-film magnetoresistive tape head assembly | — | 1996-07-30 |
| 5434732 | Balanced cantilevered head positioning mechanism for multitrack tape recorder | Durkee B. Richards, Robert J. Youngquist | 1995-07-18 |
| 5390054 | Method and system for minimizing the error rate of a digital recording system by predicting the optimal bias current | Robert J. Youngquist, Richard W. Molstad, Tim T. Ngo | 1995-02-14 |
| 5379170 | Dynamically adjustable head positioning mechanism for tape drives | — | 1995-01-03 |
| 5339202 | Method and apparatus for amplitude compensated write equalization | John E. Heinz, Michael E. Hamerly, Richard W. Molstad, Robert J. Youngquist | 1994-08-16 |