Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6043947 | Magnetic storage and reproducing system with a low permeability keeper and a self-biased magnetoresitive reproduce head | Thomas M. Coughlin, David H. Davies | 2000-03-28 |
| 5870260 | Magnetic recording system having a saturable layer and detection using MR element | David H. Davies, Thomas M. Coughlin | 1999-02-09 |
| 5843565 | Particulate magnetic medium utilizing keeper technology and methods of manufacture | David H. Davies, Thomas M. Coughlin | 1998-12-01 |
| 5830590 | Magnetic storage and reproducing system with a low permeability keeper and a self-biased magnetoresistive reproduce head | Thomas M. Coughlin, David H. Davies | 1998-11-03 |
| 5826326 | Method for manufacturing a composite metal and ferrite head transducer | Rex Niedermeyer | 1998-10-27 |
| 5774311 | Small core magnetic head with non-magnetic side support | — | 1998-06-30 |
| 5729413 | Two-gap magnetic read/write head | George R. Varian | 1998-03-17 |
| 5585977 | Recording/reproducing apparatus and method embodying a unique scanning magnetic transducer | — | 1996-12-17 |
| 5402294 | Laminated, high frequency, magnetic transducer and manufacturing method therefor | George R. Varian | 1995-03-28 |
| 5267392 | Method of manufacturing a laminated high frequency magnetic transducer | George R. Varian | 1993-12-07 |
| 5227939 | Scanning transducer having transverse information and control flux paths for reduced interference between fluxes | — | 1993-07-13 |
| 5189580 | Ultra small track width thin film magnetic transducer | Raghavan K. Pisharody | 1993-02-23 |
| 5189572 | Magnetic control of a transducer signal transfer zone to effect tracking of a path along a record medium | — | 1993-02-23 |
| 5153796 | Method and apparatus for transferring information between two magnetic bodies using a third body of magnetic material | — | 1992-10-06 |
| 5130876 | Solid state scanning transducer that utilizes low flux densities | — | 1992-07-14 |
| 5119255 | Magnetic saturation controlled scanning magnetic transducer | — | 1992-06-02 |
| 5075280 | Thin film magnetic head with improved flux concentration for high density recording/playback utilizing superconductors | Raghavan K. Pisharody, Sidney D. Miller, David A. Petersen | 1991-12-24 |
| 5041922 | Magnetic recording medium having magnetic storage and saturable layers, and apparatus and method using the medium | Roger William Wood, Rex Niedermeyer | 1991-08-20 |
| 5016342 | Method of manufacturing ultra small track width thin film transducers | Raghavan K. Pisharody | 1991-05-21 |
| 4985795 | Method and apparatus using a stationary magnetic body for effecting signal transfers between a moving magnetic core and a magnetic storage medium | — | 1991-01-15 |
| 4758917 | Magnetic transducer assembly with improved crosstalk reduction | — | 1988-07-19 |
| 4291352 | Multichannel transducer structure with improved interchannel cross talk rejection | — | 1981-09-22 |