RY

Robert J. Youngquist

3M: 12 patents #1,318 of 11,543Top 15%
IM Imation: 8 patents #30 of 622Top 5%
Overall (All Time): #226,379 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6330123 Head assembly having a single pass servo writer Theodore A. Schwarz, Hung T. Tran 2001-12-11
6134070 Encoded servo track configurations, servo writer and systems/method regarding same Hung T. Tran, Theodore A. Schwarz, Alan R. Olson, Richard W. Molstad, Gary D. Moeller +2 more 2000-10-17
6091565 Head assembly having a single pass servo writer Theodore A. Schwarz, Hung T. Tran 2000-07-18
6025967 Method of identifying magnetic tape characteristics Leroy A. Kuta, Michael J. Kelly 2000-02-15
5946156 Tape servo system and methods, write/read heads, and servo track configurations regarding same Theodore A. Schwarz, Hung T. Tran 1999-08-31
5675448 Track pitch error compensation system for data cartridge tape drives Richard W. Molstad, Bennett G. Dy 1997-10-07
5661616 Track servo control method for data cartridge tape drives Hung T. Tran, George Chavez 1997-08-26
5572378 Direct file access system for magnetic tape Theodore A. Schwarz, Robert E. Wolff 1996-11-05
5450257 Head-tape alignment system and method Hung T. Tran, James S. Anderson, Christopher L. Hill, Durkee B. Richards 1995-09-12
5434732 Balanced cantilevered head positioning mechanism for multitrack tape recorder Theodore A. Schwarz, Durkee B. Richards 1995-07-18
5426543 Servo positioning system for magnetic recording media Bennett G. Dy, Richard W. Molstad 1995-06-20
5390054 Method and system for minimizing the error rate of a digital recording system by predicting the optimal bias current Theodore A. Schwarz, Richard W. Molstad, Tim T. Ngo 1995-02-14
5339202 Method and apparatus for amplitude compensated write equalization John E. Heinz, Michael E. Hamerly, Richard W. Molstad, Theodore A. Schwarz 1994-08-16
5280402 Combined stepper motor and voice coil head positioning apparatus James S. Anderson, Noel L. Allen, Durkee B. Richards, Theodore A. Schwarz, Robert W. Tapani +1 more 1994-01-18
5229895 Multi-track servo recording head assembly Theodore A. Schwarz 1993-07-20
5008765 Method and apparatus for reading or writing on tape using a servo positioned multiple channel head 1991-04-16
4791643 Single track orthogonal error correction system Richard W. Molstad 1988-12-13
4473818 Bipolar digital to analog converter 1984-09-25
4351007 Editor for combining digitally recorded audio signals 1982-09-21
4292684 Format for digital tape recorder Michael J. Kelly 1981-09-29