Patents by Inventor Eric S. Linville
Eric S. Linville has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9502055Abstract: A data storage device may have one or more data writers that are configured with at least one write pole and shield. The write pole and shield can each be positioned on an air bearing surface. The shield may have first and second protrusions each extending from a shield body towards the write pole with the first protrusion positioned on the air bearing surface and the second protrusion separated from the air bearing surface and first protrusion by a lateral notch.Type: GrantFiled: April 30, 2015Date of Patent: November 22, 2016Assignee: Seagate Technology LLCInventors: Arkajyoti Misra, JianHua Xue, Eric S. Linville
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Patent number: 9159339Abstract: A magnetic device includes a write element having a write element tip that defines a medium confronting surface. The write element is operable to generate a first field at the medium confronting surface. A conductor is proximate the write element tip and first and second conductive leads are connected to the conductor and configured to deliver a current to the conductor to generate a second field that augments the first field. First and second side elements are disposed on opposite sides of the write element tip in a cross-track direction at the medium confronting surface. At least a portion of the first conductive lead is disposed adjacent the first side element on a side opposite the medium confronting surface, and at least a portion of the second conductive lead is disposed adjacent the second side element on a side opposite the medium confronting surface.Type: GrantFiled: October 26, 2007Date of Patent: October 13, 2015Assignee: Seagate Technology LLCInventors: Werner Scholz, Thomas William Clinton, Sharat Batra, Mark Thomas Kief, Eric S. Linville, Wei Peng, Kenneth A. Medlin
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Patent number: 8810964Abstract: A write element including a pole tip shield is disclosed. In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions. In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip. In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip.Type: GrantFiled: September 15, 2010Date of Patent: August 19, 2014Assignee: Seagate Technology LLCInventors: Kaizhong Gao, Eric Meloche, Jianhua Xue, Eric S. Linville, Dehua Han, Huaqing Yin
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Publication number: 20140063657Abstract: A write element including a pole tip shield is disclosed. In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions. In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip. In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip.Type: ApplicationFiled: September 15, 2010Publication date: March 6, 2014Applicant: Seagate Technology LLCInventors: Kaizhong Gao, Eric Meloche, Jianhua Xue, Eric S. Linville, Dehua Han, Huaqing Yin
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Patent number: 8582236Abstract: A magnetic device includes a write element having a write element tip and a conductor adjacent an edge of the write element tip for carrying current to generate an assist field that augments a write field generated by the write element. A cladding material is disposed on at least one surface of the conductor.Type: GrantFiled: November 19, 2010Date of Patent: November 12, 2013Assignee: Seagate Technology LLCInventors: Eric S. Linville, Mark T. Kief
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Patent number: 8564906Abstract: The application discloses a magnetic pole assembly having a pole tip arranged in a magnetic flux path and side shields separated from the pole tip by non-magnetic gap regions. The side shields are shaped to provide a differential shielding effect alongside the pole tip. As described, the sides shields are shaped to provide a non-magnetic gap region having a width that increases in the downtrack direction along a length of the pole tip. The increasing non-magnetic gap region alongside the pole tip provides a smaller non-magnetic gap region separating the pole tip from the side shields at the leading edge than the non-magnetic gap region separating the pole tip from the side shields at the trailing edge of the pole tip.Type: GrantFiled: September 28, 2012Date of Patent: October 22, 2013Assignee: Seagate Technology LLCInventors: Kaizhong Gao, Jianhua Xue, Yuming Zhou, Dehua Han, Eric S. Linville
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Publication number: 20130003225Abstract: A method of fabricating a recording head includes depositing an insulator material onto at least a portion of a first member, wherein the insulator material forms an insulator film having a film thickness. The method further includes depositing a writer pole material onto the insulator film, wherein the writer pole material forms a writer pole member, and wherein the insulator film is between the writer pole member and a contact layer. Further, in some embodiments, the film thickness determines the distance between the writer pole member and the first contact member and also determines the distance between the writer pole member and the second contact member.Type: ApplicationFiled: September 12, 2012Publication date: January 3, 2013Applicant: SEAGATE TECHNOLOGY LLCInventors: Nurul Amin, Ibro Tabakovic, Eric S. Linville, Ming Sun
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Patent number: 8339736Abstract: A magnetic device includes a write element having a write element tip and a conductive coil that carries current to induce a first field in the write element. A first conductor is proximate a leading edge of the write pole tip for carrying current to generate a second field that augments the first field.Type: GrantFiled: June 20, 2007Date of Patent: December 25, 2012Assignee: Seagate Technology LLCInventors: Kaizhong Gao, Sining Mao, Eric S. Linville, Xuebing Feng, Shaoping Li, Steven Paul Bozeman
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Patent number: 8286333Abstract: A method of fabricating a recording head includes depositing an insulator material onto at least a portion of a first member, wherein the insulator material forms an insulator film having a film thickness. The method further includes depositing a writer pole material onto the insulator film, wherein the writer pole material forms a writer pole member, and wherein the insulator film is between the writer pole member and a contact layer. Further, in some embodiments, the film thickness determines the distance between the writer pole member and the first contact member and also determines the distance between the writer pole member and the second contact member.Type: GrantFiled: March 19, 2008Date of Patent: October 16, 2012Assignee: Seagate Technology LLCInventors: Nurul Amin, Ibro Tabakovic, Eric S. Linville, Ming Sun
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Patent number: 8279562Abstract: A pole tip shield for a write element of a recording head is disclosed. The pole tip shield is spaced from the pole tip in the leading edge direction to provide a magnetic wall angle to reduce ATI or adjacent track erasure to compensate for the skew angle of the head. In illustrated embodiments, the pole tip shield includes side portions. In illustrated embodiments the pole tip shield is generally āUā shaped and side portions of the pole tip shield include different thickness or width dimensions. In illustrated embodiments, the pole tip shield provides a magnetic wall angle for a rectangular shaped pole tip. Embodiments disclosed in the application include a trailing edge shield separated from the pole tip shield along an air bearing surface of the head by a non-magnetic gap portion.Type: GrantFiled: March 16, 2009Date of Patent: October 2, 2012Assignee: Seagate Technology LLCInventors: Kaizhong Gao, Jianhua Xue, Yuming Zhou, Dehua Han, Eric S. Linville
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Patent number: 7983002Abstract: A magnetic device includes a write element having a write element tip and a first return element magnetically coupled to the write element on a trailing side of the write element. A conductor is positioned proximate to an edge of the write element tip and is configured to generate an assist field that augments a write field generated by the write element. A shield that includes at least one gap extends from the first return element toward the write element tip.Type: GrantFiled: June 26, 2007Date of Patent: July 19, 2011Assignee: Seagate Technology LLCInventors: Ladislav R. Pust, Eric S. Linville
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Publication number: 20110063756Abstract: A magnetic device includes a write element having a write element tip and a conductor adjacent an edge of the write element tip for carrying current to generate an assist field that augments a write field generated by the write element. A cladding material is disposed on at least one surface of the conductor.Type: ApplicationFiled: November 19, 2010Publication date: March 17, 2011Applicant: SEAGATE TECHNOLOGY LLCInventors: Eric S. Linville, Mark T. Kief
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Patent number: 7855853Abstract: A magnetic device includes a write element having a write element tip and a conductor adjacent an edge of the write element tip for carrying current to generate an assist field that augments a write field generated by the write element. A cladding material is disposed on at least one surface of the conductor.Type: GrantFiled: June 20, 2007Date of Patent: December 21, 2010Assignee: Seagate Technology LLCInventors: Eric S. Linville, Mark T. Kief
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Publication number: 20100232062Abstract: A pole tip shield for a write element of a recording head is disclosed. The pole tip shield is spaced from the pole tip in the leading edge direction to provide a magnetic wall angle to reduce ATI or adjacent track erasure to compensate for the skew angle of the head. In illustrated embodiments, the pole tip shield includes side portions. In illustrated embodiments the pole tip shield is generally āUā shaped and side portions of the pole tip shield include different thickness or width dimensions. In illustrated embodiments, the pole tip shield provides a magnetic wall angle for a rectangular shaped pole tip. Embodiments disclosed in the application include a trailing edge shield separated from the pole tip shield along an air bearing surface of the head by a non-magnetic gap portion.Type: ApplicationFiled: March 16, 2009Publication date: September 16, 2010Applicant: Seagate Technology LLCInventors: Kaizhong Gao, Jianhua Xue, Yuming Zhou, Dehua Han, Eric S. Linville
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Publication number: 20090237837Abstract: A method of fabricating a recording head includes depositing an insulator material onto at least a portion of a first member, wherein the insulator material forms an insulator film having a film thickness. The method further includes depositing a writer pole material onto the insulator film, wherein the writer pole material forms a writer pole member, and wherein the insulator film is between the writer pole member and a contact layer. Further, in some embodiments, the film thickness determines the distance between the writer pole member and the first contact member and also determines the distance between the writer pole member and the second contact member.Type: ApplicationFiled: March 19, 2008Publication date: September 24, 2009Applicant: Seagate Technology LLCInventors: Nurul Amin, Ibro Tabakovic, Eric S. Linville, Ming Sun
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Publication number: 20090109570Abstract: A magnetic device includes a write element having a write element tip that defines a medium confronting surface. The write element is operable to generate a first field at the medium confronting surface. A conductor is proximate the write element tip and first and second conductive leads are connected to the conductor and configured to deliver a current to the conductor to generate a second field that augments the first field. First and second side elements are disposed on opposite sides of the write element tip in a cross-track direction at the medium confronting surface. At least a portion of the first conductive lead is disposed adjacent the first side element on a side opposite the medium confronting surface, and at least a portion of the second conductive lead is disposed adjacent the second side element on a side opposite the medium confronting surface.Type: ApplicationFiled: October 26, 2007Publication date: April 30, 2009Applicant: SEAGATE TECHNOLOGY LLCInventors: Werner Scholz, Thomas William Clinton, Sharat Batra, Mark Thomas Kief, Eric S. Linville, Wei Peng, Kenneth A. Medlin
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Publication number: 20090002895Abstract: A magnetic device includes a write element having a write element tip and a first return element magnetically coupled to the write element on a trailing side of the write element. A conductor is positioned proximate to an edge of the write element tip and is configured to generate an assist field that augments a write field generated by the write element. A shield that includes at least one gap extends from the first return element toward the write element tip.Type: ApplicationFiled: June 26, 2007Publication date: January 1, 2009Applicant: Seagate Technology LLCInventors: Ladislav R. Pust, Eric S. Linville
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Publication number: 20080316643Abstract: A magnetic device includes a write element having a write element tip and a conductor adjacent an edge of the write element tip for carrying current to generate an assist field that augments a write field generated by the write element. A cladding material is disposed on at least one surface of the conductor.Type: ApplicationFiled: June 20, 2007Publication date: December 25, 2008Applicant: Seagate Technology LLCInventors: Eric S. Linville, Mark T. Kief
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Publication number: 20080316631Abstract: A magnetic device includes a write element having a write element tip and a conductive coil that carries current to induce a first field in the write element. A first conductor is proximate a leading edge of the write pole tip for carrying current to generate a second field that augments the first field.Type: ApplicationFiled: June 20, 2007Publication date: December 25, 2008Applicant: Seagate Technology LLCInventors: Kaizhong Gao, Sining Mao, Eric S. Linville, Xuebing Feng, Shaoping Li, Steven Paul Bozeman
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Patent number: 7453084Abstract: A transistor has an emitter, a spin-selective base, a collector, a first barrier interposed between the spin-selective base and the emitter, a second barrier interposed between the spin-selective base and the collector, and a transfer ratio of more than 10?3.Type: GrantFiled: May 24, 2005Date of Patent: November 18, 2008Assignee: Seagate Technology LLCInventors: Janusz J. Nowak, Brian W. Karr, David H. Olson, Eric S. Linville, Paul E. Anderson