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| Number | Title | Issue Date |
| 7589925 | Method of accessing variable density data tracks in a disk drive A disk drive has multiple disk surfaces and corresponding heads, each disk surface includes multiple regions, and each head is for recording on and playback of information from a corresponding disk surface. The data track density in a first region on a first disk su... | 09/15/2009 |
| 7428124 | Magnetic recording head with resistive heating element and thermal barrier layer A thin film magnetic head includes a slider body having a trailing surface meeting an air-bearing surface at a trailing edge. A magnetic read and write elements are disposed along the trailing surface near the trailing edge. The magnetic write element includes write... | 09/23/2008 |
| 7362529 | Disk drive with variable density data tracks A disk drive has multiple disk surfaces and corresponding heads, each disk surface includes multiple regions, and each head is for recording on and playback of information from a corresponding disk surface. The data track density in a first region on a first disk su... | 04/22/2008 |
| 7283316 | Vertical track zoning for disk drives A data storage device has multiple storage media surfaces and corresponding heads, each storage media surface includes multiple regions, and each head is for recording on and playback of information from a corresponding storage media surface. A method of defining a ... | 10/16/2007 |
| 7065111 | Method for testing laser using side mode suppression ratio Systems, methods and computer software are provided for testing a laser. Initially, the laser is operated at a first bias setting and a data rate of about 10 Gb/s, and a first side mode suppression ratio of the laser output is measured that is based on a first ratio... | 06/20/2006 |
| 6778566 | System and method for testing a laser module by measuring its side mode suppression ratio A key requirement of a fiber optic communication system is its ability to transmit data from one location to another relatively free of errors in the data stream. The data stream error rate is a function of the error rate of the laser module utilized to transmit the... | 08/17/2004 |
| 6633464 | Synthetic antiferromagnetic pinned layer with Fe/FeSi/Fe system A magnetoresistive (MR) device includes a synthetic antiferromagnetic (AFM) layer having an Fe/FeSi/Fe construction. A first Fe layer of the synthetic AFM layer has a magnetization substantially in a first direction, while a second Fe layer of the synthet... | 10/14/2003 |
