Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6870696 | CMOS low-noise MR read head pre-amplifier circuit | Wayne Leung Cheung | 2005-03-22 |
| 6850378 | Method and apparatus for providing quadrature biasing for coupled-pair circuits | John Thomas Conteras, Paul W. Chung, Kevin Vannorsdel | 2005-02-01 |
| 6847501 | Method and apparatus for providing matched differential MR biasing and pre-amplification | Wayne Leung Cheung, Kevin Vannorsdel | 2005-01-25 |
| 6822817 | Preamplifier circuit suitable for use in magnetic storage devices | Paul W. Chung, John Contreras | 2004-11-23 |
| 6420910 | Quasi-current sensing input impedance controlled preamplifier for magnetoresistive elements | John Contreras, Paul W. Chung, Klaas B. Klaassen, Jacobus C. L. van Peppen | 2002-07-16 |
| 6271977 | Multi-state preamplifier for disk drives | Paul W. Chung | 2001-08-07 |
| 6265905 | Quasi-voltage sensing input impedance controlled preamplifier for magnetoresistive elements | Paul W. Chung | 2001-07-24 |
| 6252735 | Voltage-biasing, voltage-sensing differential preamplifier for magnetoresistive elements | Paul Chung | 2001-06-26 |
| 6175462 | High input impedance single ended, low supply voltage magnetoresistive preamplifier circuits | Paul W. Chung | 2001-01-16 |
| 5523898 | Partial MR sensor bias current during write | Albert John Wallash | 1996-06-04 |
| 5323278 | Low noise amplifier circuit for magnetoresistive sensors for fast read-write switching in low supply voltage applications | John Contreras, Klaas B. Klaassen, Jacobus C. Leonardus van Peppen | 1994-06-21 |
| 5296975 | High-transition-rate, low-supply-voltage write driver circuitry for magnetic inductive write head | John Contreras, Klaas B. Klassen, Jacobus C. Leonardus van Peppen | 1994-03-22 |
| 5287340 | Differential amplifier for optical detectors in an optical data storage system | Dale Chapman, Michael O. Jenkins, Jacobus C. L. van Peppen | 1994-02-15 |
| 5270882 | Low-voltage, low-power amplifier for magnetoresistive sensor | Klaas B. Klaassen, Jacobus C. L. van Peppen | 1993-12-14 |
| 5204789 | Low noise voltage-biasing amplifier for magnetoresistive element | Charles R. Nielsen, Calvin Shizuo Nomura, Michael L. Workman | 1993-04-20 |
| 5103353 | Low noise amplifier with short circuit protection for signals from magnetoresistive element | Klaas B. Klaassen, Calvin Shizuo Nomura, Jacobus C. Leonardus van Peppen | 1992-04-07 |
| 5057785 | Method and circuitry to suppress additive disturbances in data channels | Paul Chung, Michael O. Jenkins, Klaas B. Klaassen, Paik Saber, Jacobus C. L. van Peppen | 1991-10-15 |
| 5032935 | Amplification of signals produced by a magnetoresistive element | Klaas B. Klaassen, Long Tran | 1991-07-16 |
| 4914398 | Method and circuitry to suppress additive disturbances in data channels containing MR sensors | Klaas B. Klaassen, Jacobus C. L. van Peppen | 1990-04-03 |
| 4879610 | Protective circuit for a magnetoresistive element | Klaas B. Klaassen, Calvin Shizuo Nomura, Jacobus C. L. vanPeppen | 1989-11-07 |
| 4786993 | Voltage amplifier for constant voltage biasing and amplifying signals from a MR sensor | Klaas B. Klaassen, Calvin Shizuo Nomura, Jacobus C. L. van Peppen | 1988-11-22 |
| 4743861 | Frequency response compensation circuit | Klaas B. Klaassen, Jacobus C. L. vanPeppen, Chon Ngoc Vo | 1988-05-10 |
| 4706138 | Amplification of signals produced by a magnetic sensor | Klaas B. Klaassen | 1987-11-10 |
| 4420776 | PSK Modulation in AC bias data recording | Julian E. Vaughn | 1983-12-13 |