Patents by Inventor Kenneth L. Hanzalik

Kenneth L. Hanzalik 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).

  • Patent number: 10451780
    Abstract: Provided is a retroreflective article comprising a fibrous material and a perforated retroreflective material attached to said fibrous material. Embodiments of the article achieve desirable values under the ASTM F2731-11 Transmitted and Stored Energy Test, the E96/E96M-12 Moisture Vapor Transmission Rate Test, and ASTM E810-03 (2013) Standard Test Method for Coefficient of Retroreflection of Retroreflective Sheeting Utilizing the Coplanar Geometry.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: October 22, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: David B. Running, Shri Niwas, Matthew R. Lehmann, Douglas J. Hall, Kenneth L. Hanzalik, Denise A. Barrera, Alyson C. Phillips, Loretta L. Lucas
  • Publication number: 20150168614
    Abstract: Provided is a retroreflective article comprising a fibrous material and a perforated retroreflective material attached to said fibrous material. Embodiments of the article achieve desirable values under the ASTM F2731-11 Transmitted and Stored Energy Test, the E96/E96M-12 Moisture Vapor Transmission Rate Test, and ASTM E810-03 (2013) Standard Test Method for Coefficient of Retroreflection of Retroreflective Sheeting Utilizing the Coplanar Geometry.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 18, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: David B. Running, Shri Niwas, Matthew R. Lehmann, Douglas J. Hall, Kenneth L. Hanzalik, Denise A. Barrera, Alyson C. Phillips, Loretta L. Lucas
  • Patent number: 6242152
    Abstract: The present invention provides a thermal transfer donor element that includes a transfer layer comprising a fully or partially crosslinked material. The crosslinked transfer layer can be imagewise transferred from the donor element to a proximate receptor by imaging the donor element with radiation that can be absorbed and converted into heat by a light-to-heat converter included in the donor element. The heat generated during imaging is sufficient to effect transfer of the crosslinked transfer layer.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: June 5, 2001
    Assignee: 3M Innovative Properties
    Inventors: John S. Staral, Jeffrey C. Chang, Kenneth L. Hanzalik
  • Patent number: 5521035
    Abstract: Color filter elements are prepared by the laser induced thermal transfer of colorant from a color donor to a transparent, non-birefringent substrate such as glass or polymeric film. Transparent pigments which are less prone to migration, more thermally stable, and considerably more lightfast than dyes can be used to prepare the color filter elements of this invention. Color filter elements are useful for elements in color displays such as liquid crystal display devices.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: May 28, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Martin B. Wolk, Thomas A. Isberg, Kenneth L. Hanzalik, Jeffrey C. Chang, Richard E. Bills, William V. Dower, Terrance P. Smith
  • Patent number: 5424183
    Abstract: Heat-developable photothermographic materials capable of providing stable color images of high resolution. These materials comprise a support bearing a layer of an image-forming composition comprising:(a) a photosensitive silver halide,(b) an organic silver compound,(c) a reducing agent for silver ion, and(d) a binder,The reducing agent comprises a ballasted leuco dye compound. The ballasted leuco dye compound comprises a compound of the general formula:D--BwhereinD represents the reduced chromophore of a thermally mobile dye; andB represents an organic group that reduces the thermal mobility of D in the aforementioned binder, said organic group B capable of being oxidatively cleaved. The molecular weight of B must not be so high that the resulting amount of D in the emulsion layer is insufficient to yield a dye image having a reflection optical density of at least 0.3 or a transmission optical density of at least 0.2.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: June 13, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Takuzo Ishida, Roger A. Mader, Doreen C. Lynch, Tran V. Thien, Kenneth L. Hanzalik
  • Patent number: 5415993
    Abstract: A photographic emulsion containing: a photosensitive silver halide; a light-insensitive, reducible silver source; a reducing agent for the light-insensitive, reducible silver source; and a binder consisting essentially of poly(vinyl butyral) having a poly(vinyl alcohol) content of about 17.5 to 21.0 wt. % and at least one solvent selected from the group consisting of: toluene, methyl ethyl ketone, acetone, tetrahydrofuran, and 1,4-dioxane. Additionally, a process for coating a substrate involving applying at least one layer of a molten thermoreversible organogel layer; causing it to gel; and removing residual solvent.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: May 16, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kenneth L. Hanzalik, George H. Crawford, Jr., Sharon M. Rozzi, David J. Scanlan
  • Patent number: 5378542
    Abstract: Process for the simultaneous application of at least two molten, thermoreversible organogel layers to a substrate. The organogel layers can optionally contain dispersed additive ingredients, such as pigments. The organogel layers are coated onto a suitable substrate and then rapidly cooled or chilled to form a gel. Residual solvent is then removed. Multilayer coated films are thus formed with minimal interlayer mixing or interlayer diffusion of the additive ingredients.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: January 3, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kenneth L. Hanzalik, George H. Crawford, Jr., Sharon M. Rozzi, David J. Scanlan
  • Patent number: 5340613
    Abstract: Process for the simultaneous application of at least two molten, thermoreversible organogel layers to a substrate. The organogel layers can optionally contain dispersed additive ingredients, such as pigments. The organogel layers are coated onto a suitable substrate and then rapidly cooled or chilled to form a gel. Residual solvent is then removed. Multilayer coated films are thus formed with minimal interlayer mixing or interlayer diffusion of the additive ingredients.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: August 23, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kenneth L. Hanzalik, George H. Crawford, Jr., Sharon M. Rozzi, David J. Scanlan