Patents by Inventor Ladislav Rudolf Pust
Ladislav Rudolf Pust 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: 8208221Abstract: A slider having a slider body is provided. An electrical connection is coupled to the slider body. A first actuator is coupled to the electrical connection and adapted to displace a first portion of the slider body. Additionally, a second actuator is coupled to the electrical connection and adapted to displace a second portion of the slider body.Type: GrantFiled: August 31, 2010Date of Patent: June 26, 2012Assignee: Seagate Technology LLCInventors: Daniel Paul Burbank, Ladislav Rudolf Pust, Eric Leroy Granstrom
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Publication number: 20100321828Abstract: A slider having a slider body is provided. An electrical connection is coupled to the slider body. A first actuator is coupled to the electrical connection and adapted to displace a first portion of the slider body. Additionally, a second actuator is coupled to the electrical connection and adapted to displace a second portion of the slider body.Type: ApplicationFiled: August 31, 2010Publication date: December 23, 2010Applicant: SEAGATE TECHNOLOGY LLCInventors: Daniel Paul Burbank, Ladislav Rudolf Pust, Eric Leroy Granstrom
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Patent number: 7808746Abstract: A slider having a slider body is provided. An electrical connection is coupled to the slider body. A first actuator is coupled to the electrical connection and adapted to displace a first portion of the slider body. Additionally, a second heater is coupled to the electrical connection and adapted to displace a second portion of the slider body.Type: GrantFiled: August 11, 2005Date of Patent: October 5, 2010Assignee: Seagate Technology LLCInventors: Daniel Paul Burbank, Ladislav Rudolf Pust, Eric Leroy Granstrom
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Patent number: 7092208Abstract: A magnetic head having an air bearing surface is used to reduce thermal pole tip protrusion and recession. The magnetic head includes a substrate and a data transducer positioned upon the substrate adjacent the air bearing surface. The data transducer is comprised of a plurality of metallic layers. A compensation structure is positioned adjacent to at least one of the plurality of metallic layers, is exposed at the air bearing surface or recessed at the ABS and extends substantially perpendicular from the air bearing surface. The compensation structure is formed of a material having a coefficient of thermal expansion less than a coefficient of thermal expansion of a material forming the substrate.Type: GrantFiled: January 28, 2003Date of Patent: August 15, 2006Assignee: Seagate Technology LLCInventors: Jie Zou, Jason Bryce Gadbois, Declan Macken, Michael Kautzky, David Christopher Seets, Ladislav Rudolf Pust
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Patent number: 7082016Abstract: A reader formed in a data transducer includes a first shield, a read gap, a second shield, a maanetic compensation layer, and a non-magnetic spacer layer. The first shield is formed of a multilayer comprised of a layer of a first material. The second shield is spaced apart from the first shield by the read gap. The magnetic compensation layer is formed in the first shield and has a coefficient of thermal expansion of less than the coefficient of thermal expansion of the first material. The non-magnetic spacer layer separates the first material layer and the compensation layer of the first shield.Type: GrantFiled: February 27, 2003Date of Patent: July 25, 2006Assignee: Seagate Technology LLCInventors: Ladislav Rudolf Pust, Mark Thomas Kief, Ibro Tabakovic, James F. Dolejsi, Vee Sochivy Kong
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Patent number: 7031122Abstract: The invention offers a magnetic recording head that includes a substrate, a read sensor, and at least one shield positioned adjacent to the read sensor, wherein the shield contributes to thermal pole-tip recession in an amount less than about 0.5 ?/° C. The invention also offers a magnetic recording head that includes a substrate having a coefficient of thermal expansion, a read sensor, and at least one shield, positioned adjacent to the read sensor, that has a coefficient of thermal expansion within ±2×10?6/° C. of the coefficient of thermal expansion of the substrate. The invention further offers a magnetic recording head that includes a substrate, a read sensor, and at least one shield, positioned adjacent the read sensor, with a thickness of from about 0.05 ?m to about 0.5 ?m.Type: GrantFiled: July 26, 2002Date of Patent: April 18, 2006Assignee: Seagate Technology LLCInventors: Ladislav Rudolf Pust, Declan Macken, Mark Thomas Kief, Yifan Zhang, Venkateswara Inturi, Richard Paul Larson
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Patent number: 6975472Abstract: A head with a heating element and control regime therefor is disclosed. In embodiments described, the control regime or controller energizes the heater or heating element to provide intermittent heating between read or write operations to optimize transducer temperature and operating characteristics or parameters of a data storage device. In particular, in one embodiment described, the controller provides a low amplitude signal or current to provide low grade thermal heating. In another embodiment, the controller provides a high amplitude signal or current to preheat the transducer portion for write operations.Type: GrantFiled: September 12, 2003Date of Patent: December 13, 2005Assignee: Seagate Technology LLCInventors: Lance E. Stover, Jane Katherine Gates, Ladislav Rudolf Pust, John L. Brand
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Patent number: 6950280Abstract: A magnetic head having a heat dissipating structure formed of a thermally conductive material that includes a top heat transfer sheet overlaying a second portion of a writer conducting coil; a bottom heat transfer sheet formed in a back region of a bottom pole layer, displaced from a back side of a bottom writer pole, and underlaying the second portion of the writer conducting coil; a first side heat transfer member formed in a coil layer adjacent a first side of the writer conducting coil; and/or a second side heat transfer member formed in the coil layer adjacent a second side of the writer conducting coil.Type: GrantFiled: March 6, 2003Date of Patent: September 27, 2005Assignee: Seagate Technology LLCInventors: Christopher James Thompson Rea, Ladislav Rudolf Pust, Michael Christopher Kautzky, Mallika Kamarajugadda
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Patent number: 6876526Abstract: A transducing head formed upon a slider has an air bearing surface, a top magnetic pole, a shared magnetic pole, a write via, and a shared pole extension. The write via is positioned opposite the air bearing surface and extends between the top magnetic pole and the shared magnetic pole. The shared pole extension is positioned adjacent the air bearing surface and extends from the shared magnetic pole toward the top magnetic pole. The shared pole extension is separated from the top magnetic pole by a write gap. The shared pole extension is formed of a multilayer having a layer of a first material having a high magnetic moment and a layer a second material having a coefficient of thermal expansion substantially similar to a coefficient of thermal expansion of the slider material.Type: GrantFiled: September 11, 2002Date of Patent: April 5, 2005Assignee: Seagate Technology LLCInventors: Declan Macken, Christopher John Cote, Ladislav Rudolf Pust, Vee Sochivy Kong
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Publication number: 20040264051Abstract: A slider including a trench fabricated in an overcoat layer of a transducer portion of the slider is disclosed. The trench forms a recessed trailing edge of the slider. The trailing edge is recessed a dimension defined by an etched depth of the trench to define a close point of the slider within desired operational parameters for read and/or write operations.Type: ApplicationFiled: June 27, 2003Publication date: December 30, 2004Applicant: Seagate Technology LLCInventors: Michael John Gronseth, Ladislav Rudolf Pust
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Patent number: 6813118Abstract: A transducing head formed upon a slider has a transducer, an electrical contact layer, a stud electrically connected to the contact layer, and a bond pad electrically connected to the stud. The electrical contact layer is electrically connected to the transducer. The stud is formed of a material having a coefficient of thermal expansion less than about 1.3 times a coefficient of thermal expansion of a slider material forming the slider. The bond pad has a metallic underlayer and a top layer. The metallic underlayer is formed of a material having a coefficient of thermal expansion less than about 1.1 times the coefficient of thermal expansion of the slider material.Type: GrantFiled: October 22, 2002Date of Patent: November 2, 2004Assignee: Seagate Technology LLCInventors: Ladislav Rudolf Pust, Declan Macken, Tracy C. Baresh, Ibro Tabakovic, Venkateswara R. Inturi
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Patent number: 6754050Abstract: A data transducer having an air bearing surface is used to reduce thermal pole tip protrusion. The data transducer includes a write via and a top pole having one end adjacent the air bearing surface and an opposite end contacting the write via. The yoke extends from the write via in two directions towards the air bearing surface and is recessed from the air bearing surface. The yoke has a first end and a second end. The data transducer includes a shared pole adjacent the air bearing surface and co-planar to the yoke wherein a gap is located between the shared pole and the yoke. A shared pole extension extends between the shared pole and the first and second ends of the yoke.Type: GrantFiled: December 18, 2002Date of Patent: June 22, 2004Assignee: Seagate Technology LLCInventors: Vee Sochivy Kong, Declan Macken, Huy Xuan Pham, Ladislav Rudolf Pust
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Publication number: 20040080869Abstract: A magnetic head having a heat dissipating structure formed of a thermally conductive material that includes a top heat transfer sheet overlaying a second portion of a writer conducting coil; a bottom heat transfer sheet formed in a back region of a bottom pole layer, displaced from a back side of a bottom writer pole, and underlaying the second portion of the writer conducting coil; a first side heat transfer member formed in a coil layer adjacent a first side of the writer conducting coil; and/or a second side heat transfer member formed in the coil layer adjacent a second side of the writer conducting coil.Type: ApplicationFiled: March 6, 2003Publication date: April 29, 2004Inventors: Christopher James Thompson Rea, Ladislav Rudolf Pust, Michael Christopher Kautzky, Mallika Kamarajugadda
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Publication number: 20040012894Abstract: A magnetic head includes a substrate and a data transducer positioned upon the substrate. The data transducer includes a reader comprised of a top shield and a bottom shield characterized by at least one of the shields including a layer for compensating a thermally-caused expansion of the reader.Type: ApplicationFiled: February 27, 2003Publication date: January 22, 2004Applicant: Seagate Technology LLCInventors: Ladislav Rudolf Pust, Mark Thomas Kief, Ibro Tabakovic, James F. Dolejsi, Vee Sochivy Kong
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Publication number: 20040008451Abstract: A magnetic head having an air bearing surface is used to reduce thermal pole tip protrusion and recession. The magnetic head includes a substrate and a data transducer positioned upon the substrate adjacent the air bearing surface. The data transducer is comprised of a plurality of metallic layers. A compensation structure is positioned adjacent to at least one of the plurality of metallic layers, is exposed at the air bearing surface or recessed at the ABS and extends substantially perpendicular from the air bearing surface. The compensation structure is formed of a material having a coefficient of thermal expansion less than a coefficient of thermal expansion of a material forming the substrate.Type: ApplicationFiled: January 28, 2003Publication date: January 15, 2004Applicant: Seagate Technology LLCInventors: Jie Zou, Jason Bryce Gadbois, Declan Macken, Michael Kautzky, David Christopher Seets, Ladislav Rudolf Pust
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Publication number: 20030231435Abstract: A data transducer having an air bearing surface is used to reduce thermal pole tip protrusion. The data transducer includes a write via and a top pole having one end adjacent the air bearing surface and an opposite end contacting the write via. The yoke extends from the write via in two directions towards the air bearing surface and is recessed from the air bearing surface. The yoke has a first end and a second end. The data transducer includes a shared pole adjacent the air bearing surface and co-planar to the yoke wherein a gap is located between the shared pole and the yoke. A shared pole extension extends between the shared pole and the first and second ends of the yoke.Type: ApplicationFiled: December 18, 2002Publication date: December 18, 2003Applicant: Seagate Technology LLCInventors: Vee Sochivy Kong, Declan Macken, Huy Xuan Pham, Ladislav Rudolf Pust
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Publication number: 20030231425Abstract: A transducing head formed upon a slider has an air bearing surface, a top magnetic pole, a shared magnetic pole, a write via, and a shared pole extension. The write via is positioned opposite the air bearing surface and extends between the top magnetic pole and the shared magnetic pole. The shared pole extension is positioned adjacent the air bearing surface and extends from the shared magnetic pole toward the top magnetic pole. The shared pole extension is separated from the top magnetic pole by a write gap. The shared pole extension is formed of a multilayer having a layer of a first material having a high magnetic moment and a layer a second material having a coefficient of thermal expansion substantially similar to a coefficient of thermal expansion of the slider material.Type: ApplicationFiled: September 11, 2002Publication date: December 18, 2003Applicant: Seagate Technology LLCInventors: Declan Macken, Christopher John Cote, Ladislav Rudolf Pust, Vee Sochivy Kong
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Publication number: 20030128469Abstract: A transducing head formed upon a slider has a transducer, an electrical contact layer, a stud electrically connected to the contact layer, and a bond pad electrically connected to the stud. The electrical contact layer is electrically connected to the transducer. The stud is formed of a material having a coefficient of thermal expansion less than about 1.3 times a coefficient of thermal expansion of a slider material forming the slider. The bond pad has a metallic underlayer and a top layer. The metallic underlayer is formed of a material having a coefficient of thermal expansion less than about 1.1 times the coefficient of thermal expansion of the slider material.Type: ApplicationFiled: October 22, 2002Publication date: July 10, 2003Applicant: Seagate Technology, LLCInventors: Ladislav Rudolf Pust, Declan Macken, Tracy C. Baresh, Ibro Tabakovic, Venkateswara R. Inturi
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Publication number: 20030081359Abstract: The invention offers a magnetic recording head that includes a substrate, a read sensor, and at least on shield positioned adjacent to the read sensor, wherein the shield contributes to thermal pole-tip recession in an amount less than about 0.4Å/° C. The invention also offers a magnetic recording head that includes a substrate having a coefficient of thermal expansion, a read sensor, and at least one shield, positioned adjacent to the read sensor, that has a coefficient of thermal expansion within ±2×10−6/° C. of the coefficient of thermal expansion of the substrate. The invention further offers a magnetic recording head that includes a substrate, a read sensor, and at least one shield, with a thickness of from about 0.05 &mgr;m to about 0.5 &mgr;m positioned adjacent the read sensor.Type: ApplicationFiled: July 26, 2002Publication date: May 1, 2003Applicant: Seagate Technology LLCInventors: Ladislav Rudolf Pust, Declan Macken, Mark Thomas Kief, Yifan Zhang, Venkateswara Inturi, Richard Paul Larson
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Patent number: 6364743Abstract: A lapping monitor resistor for thin film transducers that rely upon an insulation layer to define a critical dimension includes a first conductive layer having a plurality of conductive blocks, an insulating layer formed over at least a portion of the first conductive layer, and a second conductive layer having a plurality of conductive blocks. The second conductive layer is electrically connected to the first conductive layer over portions where the insulating layer is not formed. A method of controlling lapping depth involves use of the lapping monitor resistor.Type: GrantFiled: June 9, 2000Date of Patent: April 2, 2002Assignee: Seagate Technology LLCInventors: Ladislav Rudolf Pust, Brenda Anne Everitt