Patents by Inventor Douglas W. Johnson
Douglas W. Johnson 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: 11926089Abstract: An apparatus is provided for assisting in affixing a screen protector to a display of an electronic device. The apparatus includes a base including a platform configured to support the electronic device. The apparatus includes a lid configured to cover at least a portion of the base and the supported electronic device. The lid includes an aperture.Type: GrantFiled: May 9, 2023Date of Patent: March 12, 2024Assignee: Otter Products, LLCInventors: Richard W. Vinson, Zachariah J. Pickett, John P. Fitzgerald, Douglas A. Kempel, Jamie L. Johnson, Ross V. Bulkley, Adam J. Havens, Grady E. Barfoot
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Patent number: 10133831Abstract: Predicting future hydrocarbon production. At least some of the illustrative embodiments are methods including: reading data regarding hydrocarbon production from a hydrocarbon producing field; producing at least one value indicative of future hydrocarbon production based on a data model and the data regarding hydrocarbon production; displaying, on a display device of a computer system, an indication of historic data regarding hydrocarbon production; and displaying, on the display device, an indication of the at least one value indicative of future hydrocarbon production.Type: GrantFiled: March 13, 2013Date of Patent: November 20, 2018Assignee: LANDMARK GRAPHICS CORPORATIONInventors: Gustavo A. Carvajal, Alvin S. Cullick, Hatem Nasr, Douglas W. Johnson
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Publication number: 20150051892Abstract: Predicting future hydrocarbon production. At least some of the illustrative embodiments are methods including: reading data regarding hydrocarbon production from a hydrocarbon producing field; producing at least one value indicative of future hydrocarbon production based on a data model and the data regarding hydrocarbon production; displaying, on a display device of a computer system, an indication of historic data regarding hydrocarbon production; and displaying, on the display device, an indication of the at least one value indicative of future hydrocarbon production.Type: ApplicationFiled: March 13, 2013Publication date: February 19, 2015Applicant: Landmark Graphics CorporationInventors: Gustavo A. Carvajal, Alvin S. Cullick, Hatem Nasr, Douglas W. Johnson
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Patent number: 8947802Abstract: A method comprises generating first and second magnetic field components in a magnetic medium, the second magnetic field component substantially opposite the first. A pattern is written onto the magnetic medium, and a signal is generated by reading the pattern. The magnitude of the second magnetic field component is controlled based on an asymmetry of the signal.Type: GrantFiled: February 3, 2014Date of Patent: February 3, 2015Assignee: Imation Corp.Inventors: Douglas W. Johnson, Roni J. Dornfeld, Stephen J. Rothermel
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Patent number: 8867157Abstract: The present disclosure relates to a perpendicular pole head for creating a perpendicular magnetic moment in a concentrated pattern for writing the pattern on perpendicular magnetic media, such as BaFe based media. The pole head can have flux concentrators in the shape of the written pattern, which can be repeatedly applied to a moving magnetic medium to create a timing pattern on the media, e.g., a servo timing pattern.Type: GrantFiled: January 30, 2013Date of Patent: October 21, 2014Assignee: Imation Corp.Inventors: Douglas W. Johnson, Larold Olson, Yung Yip, Stephen J. Rothermel
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Patent number: 8867167Abstract: A system comprises a first tapered core configured for positioning adjacent a first surface of a magnetic medium, and a second tapered core configured for positioning adjacent a second surface of the magnetic medium, opposite the first tapered core along a travel direction of the magnetic medium. Each of the first and second tapered cores has a transverse width defined with respect to the magnetic medium, where the transverse width decreases from a first end of the tapered core to a second end of the tapered core, the second end forming a pole face adjacent the magnetic medium.Type: GrantFiled: March 12, 2013Date of Patent: October 21, 2014Assignee: Imation Corp.Inventors: Stephen J. Rothermel, Douglas W. Johnson
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Patent number: 8817415Abstract: Magnetic storage tape and techniques for erasing and writing to magnetic storage tape having a perpendicular squareness greater than 50 percent and a longitudinal squareness less than 50 percent are described. In general, the magnetic tape may be biased with a remanence magnetization, or magnetic orientation, in any direction. One or two head systems may use various magnetic field patterns to create the desired remanence magnetization. Servo marks may have a remanence magnetization in an opposite magnetic orientation than that of the remaining bias on the servo track, e.g., substantially perpendicular to the magnetic tape. In some examples, a write head may alternate the direction of the magnetic field to continuously bias and write servo patterns to the magnetic tape. In addition, a symmetrical servo mark may be created in the magnetic tape with a write head having a gap width approximately equal to the length of the servo mark.Type: GrantFiled: June 13, 2011Date of Patent: August 26, 2014Assignee: Imation Corp.Inventors: Larold L. Olson, Douglas W. Johnson, Michael P. Sharrock
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Patent number: 8804276Abstract: Magnetic storage tape and techniques for erasing and writing to magnetic storage tape having a perpendicular squareness greater than 50 percent and a longitudinal squareness less than 50 percent are described. In general, the magnetic tape may be biased with a remanence magnetization, or magnetic orientation, in any direction. One or two head systems may use various magnetic field patterns to create the desired remanence magnetization. Servo marks may have a remanence magnetization in an opposite magnetic orientation than that of the remaining bias on the servo track, e.g., substantially perpendicular to the magnetic tape. In some examples, a write head may alternate the direction of the magnetic field to continuously bias and write servo patterns to the magnetic tape. In addition, a symmetrical servo mark may be created in the magnetic tape with a write head having a gap width approximately equal to the length of the servo mark.Type: GrantFiled: June 13, 2011Date of Patent: August 12, 2014Assignee: Imation Corp.Inventors: Larold L. Olson, Douglas W. Johnson, Michael P. Sharrock
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Patent number: 8797674Abstract: Magnetic storage tape and techniques for erasing and writing to magnetic storage tape having a perpendicular squareness greater than 50 percent and a longitudinal squareness less than 50 percent are described. In general, the magnetic tape may be biased with a remanence magnetization, or magnetic orientation, in any direction. One or two head systems may use various magnetic field patterns to create the desired remanence magnetization. Servo marks may have a remanence magnetization in an opposite magnetic orientation than that of the remaining bias on the servo track, e.g., substantially perpendicular to the magnetic tape. In some examples, a write head may alternate the direction of the magnetic field to continuously bias and write servo patterns to the magnetic tape. In addition, a symmetrical servo mark may be created in the magnetic tape with a write head having a gap width approximately equal to the length of the servo mark.Type: GrantFiled: June 13, 2011Date of Patent: August 5, 2014Assignee: Imation Corp.Inventors: Larold L. Olson, Douglas W. Johnson, Michael P. Sharrock
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Patent number: 8767342Abstract: Magnetic storage tape and techniques for erasing and writing to magnetic storage tape having a perpendicular squareness greater than 50 percent and a longitudinal squareness less than 50 percent are described. In general, the magnetic tape may be biased with a remanence magnetization, or magnetic orientation, in any direction. One or two head systems may use various magnetic field patterns to create the desired remanence magnetization. Servo marks may have a remanence magnetization in an opposite magnetic orientation than that of the remaining bias on the servo track, e.g., substantially perpendicular to the magnetic tape. In some examples, a write head may alternate the direction of the magnetic field to continuously bias and write servo patterns to the magnetic tape. In addition, a symmetrical servo mark may be created in the magnetic tape with a write head having a gap width approximately equal to the length of the servo mark.Type: GrantFiled: June 13, 2011Date of Patent: July 1, 2014Assignee: Imation Corp.Inventors: Larold L. Olson, Douglas W. Johnson, Michael P. Sharrock
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Patent number: 8760802Abstract: A system comprises a magnetic medium with a first magnetic gap adjacent a first side and a second magnetic gap adjacent a second side, opposite the first magnetic gap. The first magnetic gap generates first longitudinal and perpendicular field components. The second magnetic gap generates second longitudinal and perpendicular field components. The first and second longitudinal field components are substantially aligned along a recording layer of the magnetic medium, and the first and second perpendicular field components are substantially opposed across the recording layer of the magnetic medium.Type: GrantFiled: March 12, 2013Date of Patent: June 24, 2014Assignee: Imation Corp.Inventors: Stephen J. Rothermel, Douglas W. Johnson
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Publication number: 20140146412Abstract: A method comprises generating first and second magnetic field components in a magnetic medium, the second magnetic field component substantially opposite the first. A pattern is written onto the magnetic medium, and a signal is generated by reading the pattern. The magnitude of the second magnetic field component is controlled based on an asymmetry of the signal.Type: ApplicationFiled: February 3, 2014Publication date: May 29, 2014Applicant: Imation Corp.Inventors: Douglas W. Johnson, Roni J. Dornfeld, Stephen J. Rothermel
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Publication number: 20140139944Abstract: Storage media, systems, and techniques for storing and accessing information in a servo band are described. For example, the distances between adjacent servo patterns written to the servo band may be varied to represent the supplemental information stored in the servo band. Each of the varied distances may be selected to represent physical parameters of the storage medium, servo recording conditions, or data unrelated to the servo patterns, for example. The supplemental information may be recovered from the servo band by demodulating a signal generated from a servo read head. The distances between each servo pattern in the track may be calculated from the time periods detected in the signal between servo marks of subsequent servo patterns. In some examples, a controller may adjust one or more parameters associated with reading or writing servo marks or data marks of the storage media.Type: ApplicationFiled: November 16, 2012Publication date: May 22, 2014Inventors: Douglas W. Johnson, Larold L. Olson
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Patent number: 8643968Abstract: A method comprises generating first and second magnetic field components in a magnetic medium, the second magnetic field component substantially opposite the first. A pattern is written onto the magnetic medium, and a signal is generated by reading the pattern. The magnitude of the second magnetic field component is controlled based on an asymmetry of the signal.Type: GrantFiled: March 12, 2013Date of Patent: February 4, 2014Assignee: Imation Corp.Inventors: Douglas W. Johnson, Roni J. Dornfeld, Stephen J. Rothermel
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Publication number: 20130286510Abstract: A system comprises a magnetic medium with a first magnetic gap adjacent a first side and a second magnetic gap adjacent a second side, opposite the first magnetic gap. The first magnetic gap generates first longitudinal and perpendicular field components. The second magnetic gap generates second longitudinal and perpendicular field components. The first and second longitudinal field components are substantially aligned along a recording layer of the magnetic medium, and the first and second perpendicular field components are substantially opposed across the recording layer of the magnetic medium.Type: ApplicationFiled: March 12, 2013Publication date: October 31, 2013Applicant: Imation Corp.Inventors: Stephen J. Rothermel, Douglas W. Johnson
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Publication number: 20130286504Abstract: A system comprises a first tapered core configured for positioning adjacent a first surface of a magnetic medium, and a second tapered core configured for positioning adjacent a second surface of the magnetic medium, opposite the first tapered core along a travel direction of the magnetic medium. Each of the first and second tapered cores has a transverse width defined with respect to the magnetic medium, where the transverse width decreases from a first end of the tapered core to a second end of the tapered core, the second end forming a pole face adjacent the magnetic medium.Type: ApplicationFiled: March 12, 2013Publication date: October 31, 2013Applicant: IMATION CORP.Inventors: Stephen J. Rothermel, Douglas W. Johnson
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Publication number: 20130286501Abstract: A method comprises generating first and second magnetic field components in a magnetic medium, the second magnetic field component substantially opposite the first. A pattern is written onto the magnetic medium, and a signal is generated by reading the pattern. The magnitude of the second magnetic field component is controlled based on an asymmetry of the signal.Type: ApplicationFiled: March 12, 2013Publication date: October 31, 2013Applicant: Imation Corp.Inventors: Douglas W. Johnson, Roni J. Dornfeld, Stephen J. Rothermel
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Publication number: 20130265672Abstract: The present disclosure relates to a perpendicular pole head for creating a perpendicular magnetic moment in a concentrated pattern for writing the pattern on perpendicular magnetic media, such as BaFe based media. The pole head can have flux concentrators in the shape of the written pattern, which can be repeatedly applied to a moving magnetic medium to create a timing pattern on the media, e.g., a servo timing pattern.Type: ApplicationFiled: January 30, 2013Publication date: October 10, 2013Applicant: Imation Corp.Inventors: Douglas W. Johnson, Larold Olson, Yung Yip, Stephen J. Rothermel
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Publication number: 20120314320Abstract: Magnetic storage tape and techniques for erasing and writing to magnetic storage tape having a perpendicular squareness greater than 50 percent and a longitudinal squareness less than 50 percent are described. In general, the magnetic tape may be biased with a remanence magnetization, or magnetic orientation, in any direction. One or two head systems may use various magnetic field patterns to create the desired remanence magnetization. Servo marks may have a remanence magnetization in an opposite magnetic orientation than that of the remaining bias on the servo track, e.g., substantially perpendicular to the magnetic tape. In some examples, a write head may alternate the direction of the magnetic field to continuously bias and write servo patterns to the magnetic tape. In addition, a symmetrical servo mark may be created in the magnetic tape with a write head having a gap width approximately equal to the length of the servo mark.Type: ApplicationFiled: June 13, 2011Publication date: December 13, 2012Applicant: Imation Corp.Inventors: Larold L. Olson, Douglas W. Johnson, Michael P. Sharrock
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Publication number: 20120314319Abstract: Magnetic storage tape and techniques for erasing and writing to magnetic storage tape having a perpendicular squareness greater than 50 percent and a longitudinal squareness less than 50 percent are described. In general, the magnetic tape may be biased with a remanence magnetization, or magnetic orientation, in any direction. One or two head systems may use various magnetic field patterns to create the desired remanence magnetization. Servo marks may have a remanence magnetization in an opposite magnetic orientation than that of the remaining bias on the servo track, e.g., substantially perpendicular to the magnetic tape. In some examples, a write head may alternate the direction of the magnetic field to continuously bias and write servo patterns to the magnetic tape. In addition, a symmetrical servo mark may be created in the magnetic tape with a write head having a gap width approximately equal to the length of the servo mark.Type: ApplicationFiled: June 13, 2011Publication date: December 13, 2012Applicant: Imation Corp.Inventors: Larold L. Olson, Douglas W. Johnson, Michael P. Sharrock