Patents by Inventor Stephan Lvovich Logunov

Stephan Lvovich Logunov 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).

  • ANTI-BACTERIAL LIGHT DELIVERY SYSTEM AND METHOD FOR DISINFECTING A SURFACE
    Publication number: 20170368212
    Abstract: A light delivery system and method are provided to promote a photochemical reaction for disinfecting a surface. The system includes a light source and a light diffusing element operatively coupled to the light source and further embedded within a surface to be disinfected. The light diffusing element outputs light to the surface to promote a photochemical reaction to disinfect the surface. A low scatter light transmission medium may further be coupled between the light source and the light diffusing element to transmit light from the light source remotely to the light diffusing element.
    Type: Application
    Filed: August 24, 2017
    Publication date: December 28, 2017
    Inventors: Edward John Fewkes, Stephan Lvovich Logunov, Cynthia Jean Wilson
  • Light-diffusing optical elements having cladding with scattering centers
    Patent number: 9851500
    Abstract: A light-diffusing optical element with efficient coupling to light sources with high numerical aperture. The light-diffusing optical element includes a higher index core surrounded by a lower index cladding. The cladding includes scattering centers that scatter evanescent light entering the cladding from the core. The scattered light exits the element to provide broad-area illumination along the element. Scattering centers include dopants, nanoparticles and/or internal voids. The core may also include scattering centers. The core is glass and the cladding may be glass or a polymer. The element features high numerical aperture and high scattering efficiency.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: December 26, 2017
    Assignee: Corning Incorporated
    Inventor: Stephan Lvovich Logunov
  • ANTI-COUNTERFEITING MEASURES FOR GLASS ARTICLES
    Publication number: 20170340518
    Abstract: A glass container including a body having a delamination factor less than or equal to 10 and at least one marking is described. The body has an inner surface, an outer surface, and a wall thickness extending between the outer surface and the inner surface. The marking is located within the wall thickness. In particular, the marking is a portion of the body having a refractive index that differs from a refractive index of an unmarked portion of the body. Methods of forming the marking within the body are also described.
    Type: Application
    Filed: May 31, 2017
    Publication date: November 30, 2017
    Applicant: CORNING INCORPORATED
    Inventors: Stephan Lvovich Logunov, Leonard Thomas Masters, William James Miller, Alexander Mikhailovich Streltslov, Christopher Lee Timmons
  • LASER WELDED GLASS PACKAGES AND METHODS OF MAKING
    Publication number: 20170327419
    Abstract: A method of forming a sealed device comprising providing a first substrate having a first surface, providing a second substrate adjacent the first substrate, and forming a weld between an interface of the first substrate and the adjacent second substrate, wherein the weld is characterized by ((?tensile stress location)/(?interface laser weld))<<1 or <1 and ?interface laser weld>10 MPa or >1 MPa where ?tensile stress location is the stress present in the first substrate and ?interface laser weld is the stress present at the interface. This method may be used to manufacture a variety of different sealed packages.
    Type: Application
    Filed: October 29, 2015
    Publication date: November 16, 2017
    Inventors: Heather Debra Boek, Leonard Charles Dabich, II, David Alan Deneka, Jin Su Kim, Shari Elizabeth Koval, Stephan Lvovich Logunov, Mark Alejandro Quesada, Alexander Mikhailovich Streltsov
  • ION EXCHANGED GLASSES VIA NON-ERROR FUNCTION COMPRESSIVE STRESS PROFILES
    Publication number: 20170297956
    Abstract: Glasses with compressive stress profiles that allow higher surface compression and deeper depth of layer (DOL) than is allowable in glasses with stress profiles that follow the complementary error function at a given level of stored tension. In some instances, a buried layer or local maximum of increased compression, which can alter the direction of cracking systems, is present within the depth of layer. Theses compressive stress profiles are achieved by a three step process that includes a first ion exchange step to create compressive stress and depth of layer that follows the complimentary error function, a heat treatment at a temperature below the strain point of the glass to partially relax the stresses in the glass and diffuse larger alkali ions to a greater depth, and a re-ion-exchange at short times to re-establish high compressive stress at the surface.
    Type: Application
    Filed: July 3, 2017
    Publication date: October 19, 2017
    Inventors: DANA CRAIG BOOKBINDER, RICHARD MICHAEL FIACCO, TIMOTHY MICHAEL GROSS, STEPHAN LVOVICH LOGUNOV
  • SYSTEMS AND METHODS OF GLASS CUTTING BY INDUCING PULSED LASER PERFORATIONS INTO GLASS ARTICLES
    Publication number: 20170283299
    Abstract: Embodiments of the present method of laser cutting a laser wavelength transparent glass article comprises feeding at least one glass article to a pulsed laser assembly having at least one pulsed laser, wherein the pulsed laser defines a laser beam focal line with a length of 0.1-100 mm, the glass article being comprised of two end sections, and at least one lateral surface disposed lengthwise between the end sections. The method further comprises laser cutting at least one perforation line onto the lateral surface of the glass article while there is relative motion between the glass article and the pulsed laser and separating the glass article along the at least one perforation line to yield a laser cut glass article.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 5, 2017
    Inventors: Dana Craig Bookbinder, Lewis Kirk Klingensmith, Stephan Lvovich Logunov, Albert Roth Nieber, Helmut Schillinger, Pushkar Tandon, Sergio Tsuda
  • SEALED DEVICE AND METHODS FOR MAKING THE SAME
    Publication number: 20170279247
    Abstract: Disclosed herein are sealed devices comprising a first glass substrate; a second glass substrate; an optional sealing layer between the first and second glass substrates; and at least one seal between the first and second glass substrates. The sealed devices may comprise at least one cavity containing at least one component chosen from laser diodes, light emitting diodes, organic light emitting diodes, quantum dots, and combinations thereof. Also disclosed herein are display devices comprising such sealed devices and methods for making sealed devices.
    Type: Application
    Filed: August 21, 2015
    Publication date: September 28, 2017
    Inventors: Stephan Lvovich Logunov, Mark Alejandro Quesada, Alexander Mikhailovich Streltsov
  • Laser welding transparent glass sheets using low melting glass or thin absorbing films
    Patent number: 9761828
    Abstract: A method of sealing a workpiece comprising forming an inorganic film over a surface of a first substrate, arranging a workpiece to be protected between the first substrate and a second substrate wherein the inorganic film is in contact with the second substrate; and sealing the workpiece between the first and second substrates as a function of the composition of impurities in the first or second substrates and as a function of the composition of the inorganic film by locally heating the inorganic film with a predetermined laser radiation wavelength. The inorganic film, the first substrate, or the second substrate can be transmissive at approximately 420 nm to approximately 750 nm.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: September 12, 2017
    Assignee: Corning Incorporated
    Inventors: Leonard Charles Dabich, II, Stephan Lvovich Logunov, Mark Alejandro Quesada, Alexander Mikhailovich Streltsov
  • Anti-bacterial light delivery system and method for disinfecting a surface
    Patent number: 9744253
    Abstract: A light delivery system and method are provided to promote a photochemical reaction for disinfecting a surface. The system includes a light source and a light diffusing element operatively coupled to the light source and further embedded within a surface to be disinfected. The light diffusing element outputs light to the surface to promote a photochemical reaction to disinfect the surface. A low scatter light transmission medium may further be coupled between the light source and the light diffusing element to transmit light from the light source remotely to the light diffusing element.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: August 29, 2017
    Assignee: CORNING INCORPORATED
    Inventors: Edward John Fewkes, Stephan Lvovich Logunov, Cynthia Jean Wilson
  • LASER CUT COMPOSITE GLASS ARTICLE AND METHOD OF CUTTING
    Publication number: 20170239748
    Abstract: The present disclosure relates to a process for cutting and separating arbitrary shapes of thin substrates of transparent materials, particularly tailored composite fusion drawn glass sheets, and the disclosure also relates to a glass article prepared by the method. The developed laser method can be tailored for manual separation of the parts from the panel or full laser separation by thermally stressing the desired profile. The self-separation method involves the utilization of an ultra-short pulse laser that can be followed by a CO2 laser (coupled with high pressure air flow) for fully automated separation.
    Type: Application
    Filed: April 25, 2017
    Publication date: August 24, 2017
    Inventors: Dana Craig Bookbinder, Stephan Lvovich Logunov, Sasha Marjanovic, Albert Roth Nieber, Garrett Andrew Piech, Kamjula Pattabhirami Reddy, Pushkar Tandon, Sergio Tsuda, Natesan Venkataraman, Robert Stephen Wagner
  • Sealed devices comprising transparent laser weld regions
    Patent number: 9741963
    Abstract: Disclosed herein are sealed devices comprising a first substrate, a second substrate, an inorganic film between the first and second substrates, and at least one weld region comprising a bond between the first and second substrates. The weld region can comprise a chemical composition different from that of the inorganic film and the first or second substrates. The sealed devices may further comprise a stress region encompassing at least the weld region, in which a portion of the device is under a greater stress than the remaining portion of the device. Also disclosed herein are display and electronic components comprising such sealed devices.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: August 22, 2017
    Assignee: Corning Incorporated
    Inventors: Leonard Charles Dabich, II, Stephan Lvovich Logunov, Mark Alejandro Quesada, Alexander Mikhailovich Streltsov
  • VACUUM ASSISTED WOUND CLOSURE ASSEMBLY AND METHODS OF IRRADIATING A WOUND USING THE SAME
    Publication number: 20170232161
    Abstract: A method of irradiating a wound that includes positioning a wound insertion foam within a wound cavity of a wound and covering the wound insertion foam using a wound sealing layer. The method further includes pumping fluid from the wound cavity using a drain tube sealed within the wound cavity and coupled to a vacuum source, and irradiating the wound using a light diffusing optical fiber that is optically coupled to a therapeutic light source and includes light scattering structures distributed along the light diffusing optical fiber. A portion of the light diffusing optical fiber is positioned within a wound tissue region of the wound, the wound cavity, or both, such that light emitted by the therapeutic light source enters the light diffusing optical fiber, scatters outward from the light diffusing optical fiber, and irradiates the wound tissue region, a wound cavity surface of the wound, or both.
    Type: Application
    Filed: July 6, 2016
    Publication date: August 17, 2017
    Inventors: Edward John Fewkes, Stephan Lvovich Logunov, Cynthia Jean Wilson
  • GLASS SEALING WITH TRANSPARENT MATERIALS HAVING TRANSIENT ABSORPTION PROPERTIES
    Publication number: 20170233289
    Abstract: Transparent glass-to-glass hermetic seals are formed by providing a low melting temperature sealing glass along a sealing interface between two glass substrates and irradiating the interface with laser radiation. Absorption by the sealing glass and induced transient absorption by the glass substrates along the sealing interface causes localized heating and melting of both the sealing glass layer and the substrate materials, which results in the formation of a glass-to-glass weld. Due to the transient absorption by the substrate material, the sealed region is transparent upon cooling.
    Type: Application
    Filed: May 2, 2017
    Publication date: August 17, 2017
    Inventors: Stephan Lvovich Logunov, Mark Alejandro Quesada
  • LASER CUT COMPOSITE GLASS ARTICLE AND METHOD OF CUTTING
    Publication number: 20170225996
    Abstract: The present disclosure relates to a process for cutting and separating arbitrary shapes of thin substrates of transparent materials, particularly tailored composite fusion drawn glass sheets, and the disclosure also relates to a glass article prepared by the method. The developed laser method can be tailored for manual separation of the parts from the panel or full laser separation by thermally stressing the desired profile. The self-separation method involves the utilization of an ultra-short pulse laser that can be followed by a CO2 laser (coupled with high pressure air flow) for fully automated separation.
    Type: Application
    Filed: April 25, 2017
    Publication date: August 10, 2017
    Inventors: Dana Craig Bookbinder, Stephan Lvovich Logunov, Sasha Marjanovic, Albert Roth Nieber, Garrett Andrew Piech, Kamjula Pattabhirami Reddy, Pushkar Tandon, Sergio Tsuda, Natesan Venkataraman, Robert Stephen Wagner
  • Ion exchanged glasses via non-error function compressive stress profiles
    Patent number: 9718727
    Abstract: Glasses with compressive stress profiles that allow higher surface compression and deeper depth of layer (DOL) than is allowable in glasses with stress profiles that follow the complementary error function at a given level of stored tension. In some instances, a buried layer or local maximum of increased compression, which can alter the direction of cracking systems, is present within the depth of layer. Theses compressive stress profiles are achieved by a three step process that includes a first ion exchange step to create compressive stress and depth of layer that follows the complimentary error function, a heat treatment at a temperature below the strain point of the glass to partially relax the stresses in the glass and diffuse larger alkali ions to a greater depth, and a re-ion-exchange at short times to re-establish high compressive stress at the surface.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: August 1, 2017
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Richard Michael Fiacco, Timothy Michael Gross, Stephan Lvovich Logunov
  • Flame retardant light diffusing fiber
    Patent number: 9720157
    Abstract: This disclosure is directed to lighting diffusing fibers (LDFs) having a flame retardant coating thereon. The LDFs comprise a glass RAL fiber core having a primary polymer coating of a clear, colorless polymeric material having an index of refraction less than that of the glass fiber core and a flame retardant coating applied over the primary coating. The flame retardant coating consist of approximately 35-85 wt. % UV curable polymer forming monomers and 15-65 wt. % of an inorganic, halogen free filler, along with at least one photoinitiator and an antioxidant. In an embodiment phosphor-containing polymer layer can be applied between the primary coating and the flame retardant coating. In another embodiment the phosphor can be added to the flame retardant coating.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: August 1, 2017
    Assignee: CORNING INCORPORATED
    Inventors: Inna Igorevna Kouzmina, Stephan Lvovich Logunov
  • METHODS AND APPARATUSES FOR FABRICATING GLASS ARTICLES
    Publication number: 20170197862
    Abstract: Methods of fabricating formed glass articles are described herein. In one embodiment, a method for fabricating a formed glass article may include forming a glass ribbon, forming a parson, and shaping the parson to form a glass article. The glass article may be attached to the glass ribbon at an attachment region defining an edge of the glass article. The process may also include contacting the attachment region with a focal line of a laser beam and separating the glass article from the glass ribbon at the attachment region. The attachment region may be perforated by the laser beam and the focal line may be substantially perpendicular to the plane of the glass ribbon.
    Type: Application
    Filed: March 29, 2017
    Publication date: July 13, 2017
    Inventors: Dana Craig Bookbinder, Albert Roth Nieber, Stephan Lvovich Logunov, Pushkar Tandon, Sergio Tsuda
  • Manipulation of color illumination using light diffusing fiber
    Patent number: 9704422
    Abstract: An illuminated color displaying device having at least one light diffusing waveguide coupled to a plurality of different light sources emitting light at different wavelengths, to provide color modulation.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: July 11, 2017
    Assignee: Corning Incorporated
    Inventors: Stephan Lvovich Logunov, Alranzo Boh Ruffin
  • Systems and methods of glass cutting by inducing pulsed laser perforations into glass articles
    Patent number: 9701564
    Abstract: Embodiments of the present method of laser cutting a laser wavelength transparent glass article comprises feeding at least one glass article to a pulsed laser assembly having at least one pulsed laser, wherein the pulsed laser defines a laser beam focal line with a length of 0.1-100 mm, the glass article being comprised of two end sections, and at least one lateral surface disposed lengthwise between the end sections. The method further comprises laser cutting at least one perforation line onto the lateral surface of the glass article while there is relative motion between the glass article and the pulsed laser and separating the glass article along the at least one perforation line to yield a laser cut glass article.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: July 11, 2017
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Lewis Kirk Klingensmith, Stephan Lvovich Logunov, Albert Roth Nieber, Helmut Schillinger, Pushkar Tandon, Sergio Tsuda
  • Laser cut composite glass article and method of cutting
    Patent number: 9701563
    Abstract: The present disclosure relates to a process for cutting and separating arbitrary shapes of thin substrates of transparent materials, particularly tailored composite fusion drawn glass sheets, and the disclosure also relates to a glass article prepared by the method. The developed laser method can be tailored for manual separation of the parts from the panel or full laser separation by thermally stressing the desired profile. The self-separation method involves the utilization of an ultra-short pulse laser that can be followed by a CO2 laser (coupled with high pressure air flow) for fully automated separation.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: July 11, 2017
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Stephan Lvovich Logunov, Sasha Marjanovic, Albert Roth Nieber, Garrett Andrew Piech, Kamjula Pattabhirami Reddy, Pushkar Tandon, Sergio Tsuda, Natesan Venkataraman, Robert Stephen Wagner