Patents by Inventor Daniel W. Olson
Daniel W. Olson 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: 10354684Abstract: A data storage device can employ one or more transducing heads that have a data reader and data writer each connected to a substrate of the transducing head. The substrate can be electrified with a predetermined surface charge by a charge circuit of the transducing head to maintain, or alter, a head-media spacing.Type: GrantFiled: May 8, 2018Date of Patent: July 16, 2019Assignee: Seagate Technologies LLCInventors: Declan Macken, Daniel W. Olson
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Patent number: 9721603Abstract: An apparatus comprises circuitry configured to apply an AC signal having a frequency to one of a slider of a recording head and a magnetic recording medium. The applied AC signal causes an oscillation in an electrostatic force and clearance between the slider and the medium at the frequency of the AC signal. A thermal sensor is configured to generate a sensor signal at the AC signal frequency in response to sensing changes in temperature resulting from the oscillating clearance. A detector is coupled to the circuitry and the thermal sensor. The detector is configured to detect one or both of head-medium spacing changes and head-medium contact using a phase of a first harmonic or an amplitude of a second harmonic of the thermal sensor signal.Type: GrantFiled: August 16, 2016Date of Patent: August 1, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Daniel W. Olson, Declan Macken, Andrea L. Geer
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Patent number: 9711173Abstract: An apparatus includes a slider body of a disk drive. The slider body is electrically coupled to a plurality of end bond pads. A voltage applied to one more of the end bond pads sets a surface potential of the slider body.Type: GrantFiled: January 24, 2017Date of Patent: July 18, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Daniel W. Olson, Declan Macken, Timothy William Stoebe
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Patent number: 9691419Abstract: Electrostatic discharge protection can be afforded to a data recording head in accordance with various embodiments. A data recording head may consist of a circuit having a preamp ground connected to a ground substrate via a ground trace. The ground trace can consist of a first leg connected to the ground substrate and a second leg with an open connection extending from a dice line.Type: GrantFiled: December 17, 2015Date of Patent: June 27, 2017Assignee: Seagate Technology LLCInventors: Daniel W. Olson, John M. Wolf, Declan Macken, Gavin L. Brinkley
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Publication number: 20170178669Abstract: Electrostatic discharge protection can be afforded to a data recording head in accordance with various embodiments. A data recording head may consist of a circuit having a preamp ground connected to a ground substrate via a ground trace. The ground trace can consist of a first leg connected to the ground substrate and a second leg with an open connection extending from a dice line.Type: ApplicationFiled: December 17, 2015Publication date: June 22, 2017Inventors: Daniel W. Olson, John M. Wolf, Declan Macken, Gavin L. Brinkley
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Publication number: 20170154646Abstract: An apparatus includes a slider body of a disk drive. The slider body is electrically coupled to a plurality of end bond pads. A voltage applied to one more of the end bond pads sets a surface potential of the slider body.Type: ApplicationFiled: January 24, 2017Publication date: June 1, 2017Inventors: Daniel W. Olson, Declan Macken, Timothy William Stoebe
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Publication number: 20170092313Abstract: An apparatus comprises circuitry configured to apply an AC signal having a frequency to one of a slider of a recording head and a magnetic recording medium. The applied AC signal causes an oscillation in an electrostatic force and clearance between the slider and the medium at the frequency of the AC signal. A thermal sensor is configured to generate a sensor signal at the AC signal frequency in response to sensing changes in temperature resulting from the oscillating clearance. A detector is coupled to the circuitry and the thermal sensor. The detector is configured to detect one or both of head-medium spacing changes and head-medium contact using a phase of a first harmonic or an amplitude of a second harmonic of the thermal sensor signal.Type: ApplicationFiled: August 16, 2016Publication date: March 30, 2017Inventors: Daniel W. Olson, Declan Macken, Andrea L. Geer
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Patent number: 9558773Abstract: An apparatus includes a slider body of a disk drive. The slider body is electrically coupled to a plurality of end bond pads. A voltage applied to one more of the end bond pads sets a surface potential of the slider body.Type: GrantFiled: December 4, 2014Date of Patent: January 31, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Daniel W. Olson, Declan Macken, Timothy William Stoebe
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Patent number: 9502064Abstract: A data recording head may consist of at least a charge control circuit that has a substrate, ground, surface charge circuitry, and data reader circuitry. The substrate may be electrically isolated from the ground and electrically connected between the surface charge circuitry and a non-zero fixed voltage. The surface charge circuitry can be configured to apply a varying substrate charge to the substrate at a predetermined frequency to alter a head media spacing between the substrate and a data storage medium.Type: GrantFiled: August 28, 2015Date of Patent: November 22, 2016Assignee: Seagate Technology LLCInventors: Declan Macken, Daniel W. Olson
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Patent number: 9437233Abstract: A disc drive assembly that includes a disc having a surface, a slider having an air-bearing surface (ABS) opposite the disc surface, and a voltage source for applying a voltage/potential across the disc and slider. Present on either the ABS or the disc surface is a surface treatment that provides a surface potential of at least +/?0.1 V. In some implementations the surface treatment is a self-assembled monolayer (SAM).Type: GrantFiled: October 7, 2015Date of Patent: September 6, 2016Assignee: SEAGATE TECHNOLOGY LLCInventors: Daniel W. Olson, Timothy W. Stoebe
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Publication number: 20160163343Abstract: An apparatus includes a slider body of a disk drive. The slider body is electrically coupled to a plurality of end bond pads. A voltage applied to one more of the end bond pads sets a surface potential of the slider body.Type: ApplicationFiled: December 4, 2014Publication date: June 9, 2016Inventors: Daniel W. Olson, Declan Macken, Timothy William Stoebe
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Patent number: 8995076Abstract: An apparatus of the present disclosure generally includes a recording head, circuitry, a thermal sensor, and a detector. The recording head has an electromagnetic attraction to a recording medium. The circuitry is configured to oscillate the electromagnetic attraction between the recording head and the recording medium. The oscillating electromagnetic attraction produces a corresponding oscillating clearance between the recording head and the recording medium. The thermal sensor, located in or near the recording head, senses an oscillating temperature that is induced by the oscillating clearance and produces a sensor signal that is representative of the sensed temperature. The detector is coupled to the thermal sensor and is configured to detect at least one of head-medium contact and clearance using the sensor signal and the electromagnetic attraction.Type: GrantFiled: April 21, 2014Date of Patent: March 31, 2015Assignee: Seagate Technology LLCInventors: Daniel W. Olson, David J. Ellison, Michael Thomas Johnson
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Patent number: 8937791Abstract: A slider having a slider body having an air bearing surface, a leading edge and a trailing edge, and a transducer on the air bearing surface proximate the trailing edge, the transducer comprising a read sensor and a write sensor. The slider also has a heater, positioned proximate the transducer, and a continuous dielectric layer comprising a dielectric material having a coefficient of thermal conductivity of at least 20 W/m-K, the dielectric layer positioned adjacent to and in contact with the heater and between the heater and the transducer.Type: GrantFiled: November 27, 2013Date of Patent: January 20, 2015Assignee: Seagate Technology LLCInventors: Daniel W. Olson, Declan Macken
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Patent number: 8458818Abstract: Elastomeric film-like products such as natural latex gloves are coated with novel lubricity compositions and compositions which protect the skin of the wearer from certain undesirable medical conditions. In powder-coated gloves, the coating composition comprises rice starch, and optionally USP-grade colloidal oatmeal in pharmaceutically accepted concentration. In powder-free gloves, the coating composition comprises colloidal oatmeal enhanced water or beta glucan solution, optionally in combination with one or more other starch components. Colloidal oatmeal enhanced water, and methods of making the colloidal oatmeal enhanced water are also disclosed. In addition, beta glucan solution, and methods of making the beta glucan solution are also disclosed. A liquid referred to herein as Polycoat may also be made by mixing colloidal oatmeal enhanced water with beta glucan solution, and the resulting liquid may be applied to elastomeric articles such as gloves.Type: GrantFiled: December 3, 2011Date of Patent: June 11, 2013Assignee: Sentinal Engineering (M) SDN BHDInventors: Joseph H. Neuser, Larry M. Olson, Daniel W. Olson
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Publication number: 20120102620Abstract: Elastomeric film-like products such as natural latex gloves are coated with novel lubricity compositions and compositions which protect the skin of the wearer from certain undesirable medical conditions. In powder-coated gloves, the coating composition comprises rice starch, and optionally USP-grade colloidal oatmeal in pharmaceutically accepted concentration. In powder-free gloves, the coating composition comprises colloidal oatmeal enhanced water or beta glucan solution, optionally in combination with one or more other starch components. Colloidal oatmeal enhanced water, and methods of making the colloidal oatmeal enhanced water are also disclosed. In addition, beta glucan solution, and methods of making the beta glucan solution are also disclosed. A liquid referred to herein as Polycoat may also be made by mixing colloidal oatmeal enhanced water with beta glucan solution, and the resulting liquid may be applied to elastomeric articles such as gloves.Type: ApplicationFiled: December 3, 2011Publication date: May 3, 2012Applicant: THE IDEA FOLDER, LLCInventors: Joseph H. Neuser, Larry M. Olson, Daniel W. Olson
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Patent number: 8075965Abstract: Elastomeric film-like products such as natural latex gloves are coated with novel lubricity compositions and compositions which protect the skin of the wearer from certain undesirable medical conditions. In powder-coated gloves, the coating composition comprises rice starch, and optionally USP-grade colloidal oatmeal in pharmaceutically accepted concentration. In powder-free gloves, the coating composition comprises colloidal oatmeal enhanced water or beta glucan solution, optionally in combination with one or more other starch components. Colloidal oatmeal enhanced water, and methods of making the colloidal oatmeal enhanced water are also disclosed. In addition, beta glucan solution, and methods of making the beta glucan solution are also disclosed. A liquid referred to herein as Polycoat may also be made by mixing colloidal oatmeal enhanced water with beta glucan solution, and the resulting liquid may be applied to elastomeric articles such as gloves.Type: GrantFiled: May 5, 2010Date of Patent: December 13, 2011Assignee: The Idea Folder, LLCInventors: Joseph H. Neuser, Larry M. Olson, Daniel W. Olson
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Publication number: 20100229281Abstract: Elastomeric film-like products such as natural latex gloves are coated with novel lubricity compositions and compositions which protect the skin of the wearer from certain undesirable medical conditions. In powder-coated gloves, the coating composition comprises rice starch, and optionally USP-grade colloidal oatmeal in pharmaceutically accepted concentration. In powder-free gloves, the coating composition comprises colloidal oatmeal enhanced water or beta glucan solution, optionally in combination with one or more other starch components. Colloidal oatmeal enhanced water, and methods of making the colloidal oatmeal enhanced water are also disclosed. In addition, beta glucan solution, and methods of making the beta glucan solution are also disclosed. A liquid referred to herein as Polycoat may also be made by mixing colloidal oatmeal enhanced water with beta glucan solution, and the resulting liquid may be applied to elastomeric articles such as gloves.Type: ApplicationFiled: May 5, 2010Publication date: September 16, 2010Applicant: THE IDEA FOLDER, LLCInventors: Joseph H. Neuser, Larry M. Olson, Daniel W. Olson
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Patent number: 7740622Abstract: Elastomeric film-like products such as natural latex gloves are coated with novel lubricity compositions and compositions which protect the skin of the wearer from certain undesirable medical conditions. In powder-coated gloves, the coating composition comprises rice starch, and optionally USP-grade colloidal oatmeal in pharmaceutically accepted concentration. In powder-free gloves, the coating composition comprises colloidal oatmeal enhanced water or beta glucan solution, optionally in combination with one or more other starch components. Colloidal oatmeal enhanced water, and methods of making the colloidal oatmeal enhanced water are also disclosed. In addition, beta glucan solution, and methods of making the beta glucan solution are also disclosed. A liquid referred to herein as Polycoat may also be made by mixing colloidal oatmeal enhanced water with beta glucan solution, and the resulting liquid may be applied to elastomeric articles such as gloves.Type: GrantFiled: August 8, 2006Date of Patent: June 22, 2010Assignee: The Idea Folder, LLCInventors: Joseph H. Neuser, Larry M. Olson, Daniel W. Olson
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Patent number: 7718240Abstract: Elastomeric film-like products such as natural latex gloves are coated with novel lubricity compositions and compositions which protect the skin of the wearer from certain undesirable medical conditions. In powder-coated gloves, the coating composition comprises rice starch, and optionally USP-grade colloidal oatmeal in pharmaceutically accepted concentration. In powder-free gloves, the coating composition comprises colloidal oatmeal enhanced water or beta glucan solution, optionally in combination with one or more other starch components. Colloidal oatmeal enhanced water, and methods of making the colloidal oatmeal enhanced water are also disclosed. In addition, beta glucan solution, and methods of making the beta glucan solution are also disclosed. A liquid referred to herein as Polycoat may also be made by mixing colloidal oatmeal enhanced water with beta glucan solution, and the resulting liquid may be applied to elastomeric articles such as gloves.Type: GrantFiled: August 8, 2006Date of Patent: May 18, 2010Assignee: The Idea Folder, LLCInventors: Joseph H. Neuser, Larry M. Olson, Daniel W. Olson
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Patent number: 7691436Abstract: Elastomeric film-like products such as natural latex gloves are coated with novel lubricity compositions and compositions which protect the skin of the wearer from certain undesirable medical conditions. In powder-free gloves, the coating composition comprises colloidal oatmeal enhanced water, beta glucan solution, and/or colloidal oatmeal gel, optionally in combination with one or more other starch components. Colloidal oatmeal enhanced water, and methods of making the colloidal oatmeal enhanced water, are also disclosed. In addition, beta glucan solution, and methods of making the beta glucan solution, are also disclosed. Furthermore, colloidal oatmeal gel, and methods of making the colloidal oatmeal gel, are also disclosed. A liquid referred to herein as Polycoat may also be made by mixing one or more of colloidal oatmeal enhanced water, beta glucan solution, and colloidal oatmeal gel, and the resulting liquid may be applied to elastomeric articles such as gloves.Type: GrantFiled: April 20, 2007Date of Patent: April 6, 2010Assignee: The Idea Folder, LLCInventors: Joseph H. Neuser, Larry M. Olson, Daniel W. Olson