Patents by Inventor Scott A. Walker

Scott A. Walker 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).

  • Publication number: 20200101485
    Abstract: A coating apparatus for a moving web that employs a spreader roller in the upweb position in a tensioned-web-over-slot die coater. The spreader roller can help spread webs laterally in a web processing operation, in particular to reduce or remove the presence of wrinkles or bagginess in the web. The spreader roller can be a reverse crown roll that is covered with a resilient material to assist spreading the web to remove wrinkles. The surface curvature of the spreader roller can be formed using layers of material such as a tape, to easily and readily approximate the shape of a reverse crown roll.
    Type: Application
    Filed: December 21, 2017
    Publication date: April 2, 2020
    Inventors: Chris J. Tanley, Bruce E. Tait, Scott A. Walker, Mark C. Berens
  • Patent number: 10126469
    Abstract: Nanostructured material exhibiting a random anisotropic nanostructured surface, and exhibiting an average reflection at 60 degrees off angle less than 1 percent. The nanostructured materials are useful, for example, for optical and optoelectronic devices, displays, solar, light sensors, eye wear, camera lens, and glazing.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: November 13, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ta-Hua Yu, Moses M. David, Abdujabar K. Dire, Albert I. Everaerts, William Blake Kolb, Todd M. Sandman, Shunsuke Suzuki, Scott A. Walker
  • Publication number: 20170221680
    Abstract: Nanostructured material exhibiting a random anisotropic nanostructured surface, and exhibiting an average reflection at 60 degrees off angle less than 1 percent. The nanostructured materials are useful, for example, for optical and optoelectronic devices, displays, solar, light sensors, eye wear, camera lens, and glazing.
    Type: Application
    Filed: April 12, 2017
    Publication date: August 3, 2017
    Inventors: Ta-Hua Yu, Moses M. David, Abdujabar K. Dire, Albert I. Everaerts, William Blake Kolb, Todd M. Sandman, Shunsuke Suzuki, Scott A. Walker
  • Patent number: 9651715
    Abstract: Nanostructured material exhibiting a random anisotropic nanostructured surface, and exhibiting an average reflection at 60 degrees off angle less than 1 percent. The nanostructured materials are useful, for example, for optical and optoelectronic devices, displays, solar, light sensors, eye wear, camera lens, and glazing.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: May 16, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ta-Hua Yu, Moses M. David, Abdujabar K. Dire, Albert I. Everaerts, William Blake Kolb, Todd M. Sandman, Shunsuke Suzuki, Scott A. Walker
  • Patent number: 9324354
    Abstract: Magnetic storage media that include a multilayer structure are described. In general, the magnetic storage media include a substrate, an underlayer that includes a plurality of underlayer particles formed over the substrate, and a magnetic layer that includes a plurality of magnetic particles formed over the underlayer. The magnetic layer may define a saturated magnetization and thickness product less than or equal to approximately 1.00 memu per square centimeter, and the magnetic particles may be selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5. In addition, the described magnetic storage media may exhibit minimal interlayer diffusion between the underlayer and magnetic layer. Reduced interlayer diffusion between different layers of a magnetic recording medium may result in an improved magnetic recording surface for recording and storing data.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: April 26, 2016
    Assignee: Sony Corporation
    Inventors: David C. Lowery, Stephen R. Ebner, Ryosuke Isobe, Larold L. Olson, Michael P. Sharrock, Scott A. Walker
  • Publication number: 20150077854
    Abstract: Nanostructured material exhibiting a random anisotropic nanostructured surface, and exhibiting an average reflection at 60 degrees off angle less than 1 percent. The nanostructured materials are useful, for example, for optical and optoelectronic devices, displays, solar, light sensors, eye wear, camera lens, and glazing.
    Type: Application
    Filed: February 22, 2013
    Publication date: March 19, 2015
    Inventors: Ta-Hua Yu, Moses M. David, Abdujabar K. Dire, Albert I. Everaerts, William Blake Kolb, Todd M. Sandman, Shunsuke Suzuki, Scott A. Walker
  • Publication number: 20110242698
    Abstract: Magnetic storage media that include a multilayer structure are described. In general, the magnetic storage media include a substrate, an underlayer that includes a plurality of underlayer particles formed over the substrate, and a magnetic layer that includes a plurality of magnetic particles formed over the underlayer. The magnetic layer may define a saturated magnetization and thickness product less than or equal to approximately 1.00 memu per square centimeter, and the magnetic particles may be selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5. In addition, the described magnetic storage media may exhibit minimal interlayer diffusion between the underlayer and magnetic layer. Reduced interlayer diffusion between different layers of a magnetic recording medium may result in an improved magnetic recording surface for recording and storing data.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 6, 2011
    Applicant: Imation Corp.
    Inventors: David C. Lowery, Stephen R. Ebner, Ryosuke Isobe, Larold L. Olson, Michael P. Sharrock, Scott A. Walker
  • Publication number: 20110244114
    Abstract: Magnetic storage media and methods for constructing magnetic storage media that include a multilayer structure are described. In some examples, a magnetic recording medium can be formed by forming an underlayer over a substrate, drying the underlayer, milling a plurality of magnetic particles, and forming a magnetic layer that includes the plurality of magnetic particles over the underlayer. The magnetic particles may be selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5. In addition, the milling process may include milling the plurality of magnetic particles so a magnetic medium formed in the absence of an applied magnetic field exhibits a longitudinal squareness less than or equal to approximately 0.40.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 6, 2011
    Applicant: Imation Corp.
    Inventors: David C. Lowery, Stephen R. Ebner, Bruce H. Edwards, Ryosuke Isobe, Larold L. Olson, Michael P. Sharrock, Scott A. Walker
  • Publication number: 20110244118
    Abstract: Magnetic storage media and methods for constructing magnetic storage media that include a multilayer structure are described. In general, the magnetic storage media include a substrate, an underlayer formed over the substrate, and a magnetic layer that includes a plurality of magnetic particles formed over the underlayer. In some examples, a magnetic recording medium can be formed by forming an underlayer over a substrate, drying the underlayer, and heat-curing the underlayer prior to forming a magnetic layer over the underlayer. A magnetic layer can then be formed over the underlayer. The magnetic layer may includes a plurality of magnetic particles selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5, may then be formed over the underlayer.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 6, 2011
    Applicant: Imation Corp.
    Inventors: David C. Lowery, Stephen R. Ebner, Bruce H. Edwards, Ryosuke Isobe, Larold L. Olson, Michael P. Sharrock, Scott A. Walker
  • Patent number: 7655096
    Abstract: A method and apparatus for substantially cleaning fill from a borehole is described variously including running a coiled tubing assembly into the wellbore, creating a fluid vortex by circulating cleaning fluid through the coiled tubing, and pulling the coiled tubing and coiled tubing assembly out of the hole at a speed sufficient to substantially clean the particulate solids from the wellbore. An apparatus for substantially cleaning fill from a hole, including vertical, horizontal, or deviated wells also is provided.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: February 2, 2010
    Assignee: BJ Services Company
    Inventors: Scott A. Walker, Jeff Li, Graham Wilde
  • Publication number: 20080217019
    Abstract: A method and apparatus for substantially cleaning fill from a borehole is described variously including running a coiled tubing assembly into the wellbore, creating a fluid vortex by circulating cleaning fluid through the coiled tubing, and pulling the coiled tubing and coiled tubing assembly out of the hole at a speed sufficient to substantially clean the particulate solids from the wellbore. An apparatus for substantially cleaning fill from a hole, including vertical, horizontal, or deviated wells also is provided.
    Type: Application
    Filed: March 31, 2008
    Publication date: September 11, 2008
    Applicant: BJ Services Company
    Inventors: Scott A. Walker, Jeff Li, Graham Wilde
  • Patent number: 7377283
    Abstract: A method and apparatus for substantially cleaning fill from a borehole is described variously including running a coiled tubing assembly into the wellbore, creating a fluid vortex by circulating cleaning fluid through the coiled tubing, and pulling the coiled tubing and coiled tubing assembly out of the hole at a speed sufficient to substantially clean the particulate solids from the wellbore. An apparatus for substantially cleaning fill from a hole, including vertical, horizontal, or deviated wells also is provided.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: May 27, 2008
    Assignee: BJ Services Company
    Inventors: Scott A. Walker, Jeff Li, Graham Wilde
  • Patent number: 6982008
    Abstract: A method and apparatus for substantially cleaning fill from a borehole is described variously including running a coiled tubing assembly into the wellbore, creating a fluid vortex by circulating cleaning fluid through the coiled tubing, and pulling the coiled tubing and coiled tubing assembly out of the hole at a speed sufficient to substantially clean the particulate solids from the wellbore. An apparatus for substantially cleaning fill from a hole, including vertical, horizontal, or deviated wells also is provided.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: January 3, 2006
    Assignee: BJ Services Company
    Inventors: Scott A. Walker, Jeff Li, Graham Wilde
  • Patent number: 6923871
    Abstract: Method and apparatus for substantially cleaning fill from a borehole, variously including in preferred embodiments disturbing particulate solids of fill while RIH, entraining particulates while POOH, jetting downhole while RIH and jetting uphole while POOH, and controlling at least one of a pump rate regime or a POOH rate regime.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: August 2, 2005
    Assignee: BJ Services Company
    Inventors: Scott A. Walker, Jeff Li, Graham Wilde
  • Patent number: 6923865
    Abstract: Techniques for precisely controlling the size of particles in a coating solution delivered to a coating apparatus involve continuous classification of coating particle size using a tangential flow filter assembly. The techniques may be particularly useful in the preparation of coating dispersions for manufacture of magnetic recording media. A classification technique makes use of a tangential flow filter assembly that permits delivery of coating particles below a maximum size threshold to a coating path. The filter assembly may be disposed in a circulation path that includes one or more processing devices to reduce the size of coating particles carried by a coating solution. The filter assembly enables coating particles above the maximum size threshold to be recirculated through the circulation path and subjected to repeated processing to reduce particle size to a desired size range.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: August 2, 2005
    Assignee: Imation Corp.
    Inventors: Mark Serafin, Stanley R. Ellis, Leroy C. Erickson, Scott A. Walker, Daniel W. Brandt
  • Publication number: 20030200995
    Abstract: Method and apparatus for substantially cleaning fill from a borehole, variously including in preferred embodiments disturbing particulate solids of fill while RIH, entraining particulates while POOH, jetting downhole while RIH and jetting uphole while POOH, and controlling at least one of a pump rate regime or a POOH rate regime.
    Type: Application
    Filed: May 5, 2003
    Publication date: October 30, 2003
    Applicant: BJ Services Company
    Inventors: Scott A. Walker, Jeff Li, Graham Wilde
  • Publication number: 20030185974
    Abstract: Techniques for precisely controlling the size of particles in a coating solution delivered to a coating apparatus involve continuous classification of coating particle size using a tangential flow filter assembly. The techniques may be particularly useful in the preparation of coating dispersions for manufacture of magnetic recording media. A classification technique makes use of a tangential flow filter assembly that permits delivery of coating particles below a maximum size threshold to a coating path. The filter assembly may be disposed in a circulation path that includes one or more processing devices to reduce the size of coating particles carried by a coating solution. The filter assembly enables coating particles above the maximum size threshold to be recirculated through the circulation path and subjected to repeated processing to reduce particle size to a desired size range.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Inventors: Mark Serafin, Stanley R. Ellis, Leroy C. Erickson, Scott A. Walker, Daniel W. Brandt
  • Patent number: 6607607
    Abstract: Method and apparatus for substantially cleaning fill from a borehole, variously including in preferred embodiments disturbing, particulate solids of fill while RIH, entraining particulates while POOH, jetting downhole while RIH and jetting uphole while POOH, and controlling at least one of a pump rate regime or a POOH rate regime.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: August 19, 2003
    Assignee: BJ Services Company
    Inventors: Scott A. Walker, Jeff Li, Graham Wilde
  • Patent number: D475768
    Type: Grant
    Filed: November 2, 2002
    Date of Patent: June 10, 2003
    Assignee: Gilmour, Inc.
    Inventor: Scott A. Walker
  • Patent number: D475770
    Type: Grant
    Filed: November 2, 2002
    Date of Patent: June 10, 2003
    Assignee: Gilmour, Inc.
    Inventor: Scott A. Walker