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: 20200101485Abstract: 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: ApplicationFiled: December 21, 2017Publication date: April 2, 2020Inventors: Chris J. Tanley, Bruce E. Tait, Scott A. Walker, Mark C. Berens
-
Patent number: 10126469Abstract: 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: GrantFiled: April 12, 2017Date of Patent: November 13, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: 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: 20170221680Abstract: 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: ApplicationFiled: April 12, 2017Publication date: August 3, 2017Inventors: 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: 9651715Abstract: 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: GrantFiled: February 22, 2013Date of Patent: May 16, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: 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: 9324354Abstract: 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: GrantFiled: April 2, 2010Date of Patent: April 26, 2016Assignee: Sony CorporationInventors: David C. Lowery, Stephen R. Ebner, Ryosuke Isobe, Larold L. Olson, Michael P. Sharrock, Scott A. Walker
-
Publication number: 20150077854Abstract: 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: ApplicationFiled: February 22, 2013Publication date: March 19, 2015Inventors: 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: 20110242698Abstract: 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: ApplicationFiled: April 2, 2010Publication date: October 6, 2011Applicant: Imation Corp.Inventors: David C. Lowery, Stephen R. Ebner, Ryosuke Isobe, Larold L. Olson, Michael P. Sharrock, Scott A. Walker
-
Publication number: 20110244114Abstract: 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: ApplicationFiled: April 2, 2010Publication date: October 6, 2011Applicant: 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: 20110244118Abstract: 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: ApplicationFiled: April 2, 2010Publication date: October 6, 2011Applicant: 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: 7655096Abstract: 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: GrantFiled: March 31, 2008Date of Patent: February 2, 2010Assignee: BJ Services CompanyInventors: Scott A. Walker, Jeff Li, Graham Wilde
-
Publication number: 20080217019Abstract: 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: ApplicationFiled: March 31, 2008Publication date: September 11, 2008Applicant: BJ Services CompanyInventors: Scott A. Walker, Jeff Li, Graham Wilde
-
Patent number: 7377283Abstract: 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: GrantFiled: November 21, 2005Date of Patent: May 27, 2008Assignee: BJ Services CompanyInventors: Scott A. Walker, Jeff Li, Graham Wilde
-
Patent number: 6982008Abstract: 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: GrantFiled: May 2, 2005Date of Patent: January 3, 2006Assignee: BJ Services CompanyInventors: Scott A. Walker, Jeff Li, Graham Wilde
-
Patent number: 6923871Abstract: 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: GrantFiled: May 5, 2003Date of Patent: August 2, 2005Assignee: BJ Services CompanyInventors: Scott A. Walker, Jeff Li, Graham Wilde
-
Patent number: 6923865Abstract: 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: GrantFiled: March 29, 2002Date of Patent: August 2, 2005Assignee: Imation Corp.Inventors: Mark Serafin, Stanley R. Ellis, Leroy C. Erickson, Scott A. Walker, Daniel W. Brandt
-
Publication number: 20030200995Abstract: 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: ApplicationFiled: May 5, 2003Publication date: October 30, 2003Applicant: BJ Services CompanyInventors: Scott A. Walker, Jeff Li, Graham Wilde
-
Publication number: 20030185974Abstract: 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: ApplicationFiled: March 29, 2002Publication date: October 2, 2003Inventors: Mark Serafin, Stanley R. Ellis, Leroy C. Erickson, Scott A. Walker, Daniel W. Brandt
-
Patent number: 6607607Abstract: 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: GrantFiled: March 6, 2001Date of Patent: August 19, 2003Assignee: BJ Services CompanyInventors: Scott A. Walker, Jeff Li, Graham Wilde
-
Patent number: D475768Type: GrantFiled: November 2, 2002Date of Patent: June 10, 2003Assignee: Gilmour, Inc.Inventor: Scott A. Walker
-
Patent number: D475770Type: GrantFiled: November 2, 2002Date of Patent: June 10, 2003Assignee: Gilmour, Inc.Inventor: Scott A. Walker