With Metal Ion Penetrating Into Glass (i.e., Ion Exchange) Patents (Class 65/30.13)
  • Patent number: 11932570
    Abstract: A method for chemical toughening a thin glass article with a thickness of at most 0.07 mm is provided. The method includes immersing the glass article into a bath of molten salt having a certain toughening temperature for a certain toughening time to form a toughened glass article; lifting the toughened glass article out of the bath of molten salt; post-toughening dwelling the toughened glass article for a certain dwelling time at a dwelling temperature that is higher than a melting point of the bath of molten salt and lower than a transition temperature (Tg) of the toughened glass article; and cooling and cleaning the toughened glass article.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: March 19, 2024
    Assignee: SCHOTT GLASS TECHNOLOGIES (SUZHOU) CO. LTD.
    Inventors: Wei Xiao, Ning Da, Feng He, José Zimmer
  • Patent number: 11339081
    Abstract: An antimicrobial strengthened glass and a preparation process thereof. The antimicrobial strengthened glass made from components including 30-50 parts of silicon dioxide, 10-20 parts of epoxy resin, 10-20 parts of titanium dioxide, 5-15 parts of nano bismuth oxide, 8-12 parts of boron oxide, 4-8 parts of chlorinated polyethylene, 2-6 parts of aluminum oxide, 1-3 parts of sodium oxide, 1-3 parts of manganese dioxide, 5-15 parts of graphite powder, 1-3 parts of barium sulfate, 2-4 parts of calcium hexaluminate, 1-3 parts of sodium fluorosilicate, 2-4 parts of borax decahydrate, 3-5 parts of sodium oxalate, 1-2 parts of sodium phosphate, 1-3 parts of sodium carbonate, 1-3 parts of potassium persulfate, 1-2 parts of potassium carbonate, 1-5 parts of ethylenediamine tetraacetic acid disodium, 1-5 parts of acrylamide, 0.01-1 part of silver nitrate and 0.01-1 parts of zinc sulfate.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: May 24, 2022
    Assignee: DONGGUAN JEX INDUSTRIAL CO., LTD
    Inventor: Wei He
  • Patent number: 11255013
    Abstract: The use of non-mass analyzed ion implanter is advantageous in such application as it generates ion implanting at different depth depending on the ions energy and mass. This allows for gaining advantage from lubricity offered as a result of the very light deposition on the surface, and at the same time the hardness provided by the intercalated ions implanted below it, providing benefits for cover glass, low E enhancement, and other similar materials. In further aspects, ion implantation is used to create other desirable film properties such anti-microbial and corrosion resistance.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 22, 2022
    Assignee: INTEVAC, INC.
    Inventors: Terry Bluck, Babak Adibi
  • Patent number: 10464843
    Abstract: A colored sapphire material and methods for coloring sapphire material using lasers are disclosed. The method for coloring the sapphire material may include positioning the sapphire material over an opaque substrate material, exposing the opaque substrate material to a laser beam passing through the sapphire material to impact the substrate material, and inducing a chemical change in a portion of the sapphire material exposed to the laser beam. The method may also include creating a visible color in the portion of the sapphire material as a result of the chemical change. The colored sapphire material may include a first transparent portion, and a second, colored portion substantially surrounded by the first portion. The second, colored portion may have a chemical composition different than that of the first portion.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: November 5, 2019
    Assignee: APPLE INC.
    Inventors: Michael M. Li, Christopher R. Fagan, Anubhav Prasad
  • Patent number: 9963378
    Abstract: There is provided a glass for chemical strengthening having a black color tone and excelling in characteristics preferred for the purposes of housing or decoration of an electronic device, that is, defoaming quality, strength, and light transmittance characteristics. A glass for chemical strengthening contains, in mole percentage based on following oxides, 55% to 80% of SiO2, 0.25% to 16% of Al2O3, 0% to 12% of B2O3, 5% to 20% of Na2O, 0% to 15% of K2O, 0% to 15% of MgO, 0% to 15% of CaO, 0% to 25% of ?RO (where R represents Mg, Ca, Sr, Ba, or Zn), and 0.1% to 7% of a coloring component (at least one metal oxide selected from the group consisting of oxides of Co, Mn, Fe, Ni, Cu, Cr, V, and Bi).
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: May 8, 2018
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventor: Hiroyuki Yamamoto
  • Patent number: 9899111
    Abstract: The method for the long-term storage of waste nuclear fuel of a nuclear reactor consists in that, first, prior to the waste fuel assembly of the nuclear reactor being disposed in a steel case and the latter being hermetically sealed with a cover, a material which is chemically inert in relation to the material of the casing of the fuel elements of the waste fuel assemblies, to the material of the body of the case, to air and to water, is arranged in the steel case, the steel case is mounted in a heating device, the steel case is heated along with the material arranged in said steel case until said material passes into a liquid state, and then the waste fuel assembly which has been extracted from the nuclear reactor is arranged in the steel case in such a way that the fuel part of the fuel elements of the waste fuel assemblies is lower than the level of the liquid material in the steel case, the waste fuel assembly is fixed in this position, and the case is hermetically sealed by the cover, whereupon the herme
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: February 20, 2018
    Assignee: Joint Stock Company “AKME-Engineering”
    Inventor: Georgiy Ilich Toshinsky
  • Patent number: 9810892
    Abstract: Optical lenses and methods for manufacturing optical lenses are disclosed herein. Lenses having a reduced aperture size are also disclosed herein along with methods for making the same. The optical lenses disclosed herein can be made having improved optical properties. The lenses can be used in optical microscopes, including optical microscopes with a shorter optical path relative to conventional optical microscopes.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: November 7, 2017
    Assignee: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Manu Prakash, James S. Cybulski, Laurel Kroo
  • Patent number: 9663396
    Abstract: A glass sheet has one surface and the other surface facing the one surface in a thickness direction, wherein a fluorine concentration (average fluorine concentration by SIMS at a depth of 1 to 24 ?m) in the one surface is higher than that in the other surface. The following expression is satisfied: 0.07??F/?H2O. ?F (mol %) is a value obtained by subtracting an average fluorine concentration in the surface having the lower fluorine concentration from that in the surface having the higher fluorine concentration, and ?H2O (mol %) is an absolute value of a value obtained by subtracting an average H2O concentration in the surface having the higher fluorine concentration from that in the surface having the lower fluorine concentration.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: May 30, 2017
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Satoshi Miyasaka, Hideko Nakada, Yasuo Hayashi, Makoto Fukawa, Toshifumi Nihei, Masanobu Shirai, Naoki Okahata, Koji Nakagawa, Kazuhiko Yamanaka, Kunio Watanabe, Shiro Tanii, Nobuaki Ikawa, Daisuke Kobayashi, Junichi Miyashita, Ryosuke Kato
  • Patent number: 9586860
    Abstract: A method of forming glass ceramic articles. The articles, in some embodiments, have a three dimensional shape. A frit mixture containing the glass ceramic in frit form and a glass frit are dispersed, in some embodiments, in a vehicle to create a slurry, which is then formed into a desired shape to make a green body. Forming may be accomplished by injection molding sinter forging, casting, casting and pressing, isostatically pressing, or the like. The green body is then fired at a high temperature to burn off the binder and fuse the glass ceramic and glass frit into a solid glass ceramic body. In some embodiments, the glass ceramic powder and glass frit material may be ion exchanged to achieve surface layers having high compressive stress, resulting in high damage resistance of the article.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: March 7, 2017
    Assignee: Corning Incorporated
    Inventor: Ljerka Ukrainczyk
  • Patent number: 9329336
    Abstract: Disclosed are methods of providing a hermetically sealed optical connection between an optical fiber and an optical element of a chip and a photonic-integrated chip manufactured using such methods.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: May 3, 2016
    Assignee: Micron Technology, Inc.
    Inventors: Roy Meade, Gurtej Sandhu
  • Patent number: 9302457
    Abstract: Methods and devices for using liquid optically clear adhesives (LOCAs) are described. A method for detecting uncured LOCA between a first substrate and a second substrate is described. In addition, an improved method for curing a laminated stack up having LOCA between a first substrate and a second substrate is described. The method includes a pre-curing method involving variable exposure of the LOCA. In addition, an improved light emitting diode (LED) unit assembly for exposing a laminated stack up to ultraviolet (UV) light during a pre-curing process is described. A method for testing the LED unit assembly prior to a pre-curing process is described.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: April 5, 2016
    Assignee: Apple Inc.
    Inventors: Silvio Grespan, Shih-Min Hsu, Heng-Hsi Wu, Kuo-Hua Sung, Cyrus Y. Liu
  • Patent number: 9147798
    Abstract: According to one embodiment, a semiconductor light emitting element includes a light emitting element includes a semiconductor stacked body including a light emitting layer, a reflection layer, a support substrate, a first bonding electrode and a second bonding electrode. The reflection layer is made of a metal and has a first surface and a second surface opposite to the first surface. The semiconductor stacked body is provided on a side of the first surface of the reflection layer. The first bonding electrode is provided between the second surface and the support substrate and includes a convex portion projected toward the support substrate and a bottom portion provided around the convex portion in plan view. The second bonding electrode includes a concave portion fitted in the convex portion of the first bonding electrode and is capable of bonding the support substrate and the first bonding electrode.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 29, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiko Akaike, Yoshinori Natsume, Shinji Nunotani, Kazuyoshi Furukawa
  • Publication number: 20150111040
    Abstract: A method capable of forming a sufficiently thick low alkali concentration region without heating glass to a high temperature and even in an atmosphere which is not an atmosphere of plasma formation gas such as helium and argon, is provided. A glass substrate having a pair of main surfaces and being made of glass containing an alkali oxide in its composition, is disposed between a first electrode and a second electrode so that one main surface is separated from the first electrode and the other main surface is brought into contact with the second electrode, and a corona discharge is generated by applying a direct-current voltage to the first electrode as a positive electrode and the second electrode as a negative electrode, in a positive-electrode-side surface layer portion of the glass substrate, at least one positive ion including an alkali ion migrate toward the negative-electrode-side.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 23, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Shiro FUNATSU, Akio KOIKE, Kiyoshi YAMAMOTO, Yuichi YAMAMOTO, Hiroshi WAKATSUKI, Junji NISHII, Kenji HARADA, Hiroshi IKEDA, Daisuke SAKAI
  • Patent number: 8973401
    Abstract: The disclosure is directed to a chemically strengthened glass having antimicrobial properties and to a method of making such glass. In particular, the disclosure is directed to a chemically strengthened glass with antimicrobial properties and with a low surface energy coating on the glass that does not interfere with the antimicrobial properties of the glass. The antimicrobial has an Ag ion concentration on the surface in the range of greater than zero to 0.047 ?g/cm2. The glass has particular applications as antimicrobial shelving, table tops and other applications in hospitals, laboratories and other institutions handling biological substances, where color in the glass is not a consideration.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: March 10, 2015
    Assignee: Corning Incorporated
    Inventors: Nicholas Francis Borrelli, David Lathrop Morse, Wageesha Senaratne, Florence Verrier, Ying Wei
  • Patent number: 8955357
    Abstract: A method for embedding a dopant into a glass substrate is provided. The method may include the steps of applying the dopant to a surface of the glass substrate, positioning the glass substrate adjacent to a catalyst such that the dopant is intermediate the catalyst and the glass substrate, heating the glass substrate to a first temperature, operating a directed thermal energy source so as to generate thermal energy incident upon the dopant, reducing the temperature of the glass substrate to a second temperature below the first temperature, and holding the glass substrate at the second temperature for at least a period of time.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 17, 2015
    Assignee: Lighting Science Group Corporation
    Inventors: Fredric S. Maxik, David E. Bartine, Theodore Scone, Sepehr Sadeh
  • Patent number: 8950215
    Abstract: Apparatus, systems and methods for reducing surface roughness on surface of a glass member using a non-contact polishing process are disclosed. According to one aspect, a method for processing a glass member suitable for use in a handheld electronic device includes obtaining the glass member and chemically strengthening the glass member. The glass member has at least one surface, and chemically strengthening the glass member increases roughness associated with the at least one surface. The method also includes applying a first non-contact polishing process to the glass member after chemically strengthening the glass member. Applying the first non-contact polishing process reduces the roughness associated with the at least one surface.
    Type: Grant
    Filed: May 14, 2011
    Date of Patent: February 10, 2015
    Assignee: Apple Inc.
    Inventors: Benjamin M. Rappoport, Christopher Prest
  • Patent number: 8943855
    Abstract: A method of cutting an article (172) from a chemically strengthened glass substrate (110) includes generating a pulsed laser beam (108) from a laser source (106). The pulsed laser beam (108) may have a pulse duration of less than about 1000 fs and an output wavelength such that the chemically strengthened glass substrate (110) is substantially transparent to the pulsed laser beam (108). The pulsed laser beam (108) may be focused to form a beam waist (109) that is positioned in the same horizontal plane as an inner tensile region (124) of the chemically strengthened glass substrate (110). The beam waist (109) may be translated in a first pass along a cut line (116), wherein the beam waist (109) traverses an edge (111) of the chemically strengthened glass substrate. The beam waist (113) may then be translated in a second pass along the cut line (116) such that a crack (119) propagates from the edge (113) along the cut line (116) ahead of the translated beam waist (109) during the second pass.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: February 3, 2015
    Assignee: Corning Incorporated
    Inventors: Sinue Gomez, Lisa Anne Moore, Sergio Tsuda
  • Publication number: 20140370302
    Abstract: Described herein are various antimicrobial glass articles that have improved strength and resistance to discoloration. The improved antimicrobial glass articles described herein generally include a glass substrate with a compressive stress layer and an antimicrobial silver-containing region that each extend inward from a surface of the glass substrate to a specific depth. In some embodiments, the compressive stress layer has a compressive stress at the surface of about 500 MPa or greater and the compressive stress decreases monotonically from the surface into the depth of the glass substrate. Methods of making and using the glass articles are also described and include forming a compressive stress layer and forming an antimicrobial silver-containing region by preferentially exchanging a plurality of silver cations in a silver-containing medium for a specific plurality of first cations ions in the glass substrate.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 18, 2014
    Applicant: CORNING INCORPORATED
    Inventors: Jaymin Amin, Timothy Michael Gross, Odessa Natalie Petzold, Rostislav Vatchev Roussev
  • Publication number: 20140356406
    Abstract: Described herein are glass or glass-ceramic articles having improved antimicrobial efficacy. Further described are methods of making and using the improved articles. The improved articles generally include a glass or glass-ceramic substrate, a compressive stress layer that extends inward from a surface of the glass or glass-ceramic substrate to a first depth therein, and an antimicrobial agent-containing region that extends inward from the surface of the glass or glass-ceramic substrate to a second depth therein. The antimicrobial agent-containing region may include at least one of a plurality of ion exchanged-copper ions and a plurality of ion exchanged-silver ions, arranged in a predetermined portion of the surface.
    Type: Application
    Filed: May 20, 2014
    Publication date: December 4, 2014
    Applicant: CORNING INCORPORATED
    Inventors: Mallanagouda Dyamanagouda Patil, Christine Coulter Wolcott
  • Publication number: 20140356605
    Abstract: Described herein are glass, ceramic, or glass-ceramic articles having improved antimicrobial efficacy. Further described are methods of making and using the improved articles. The improved articles generally include a glass, ceramic, or glass-ceramic substrate, a compressive stress layer that extends inward from a surface of the glass, ceramic, or glass-ceramic substrate to a first depth therein, and an antimicrobial agent-containing region that extends inward from the surface of the glass, ceramic, or glass-ceramic substrate to a second depth therein.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: CORNING INCORPORATED
    Inventors: Kaveh Adib, Matthew John Dejneka, Shari Elizabeth Koval
  • Publication number: 20140356604
    Abstract: Glass articles with infrared reflectivity and methods for making the same are disclosed herein. In one embodiment, glass article having infrared reflectivity includes a first surface, a second surface and a body extending between the first and second surfaces. A plurality of discrete layers of metallic silver are formed in the body creating at least one optical cavity in the body. Each discrete layer may have a thickness T such that 100 nm?T?250 nm and may be spaced apart from adjacent layers of metallic silver by a spacing S?500. The glass article reflects at least a portion of electromagnetic radiation incident on the glass article having a wavelength from 800 nm to 2500 nm and transmits at least a portion of electromagnetic radiation incident on the glass article having a wavelength from 390 nm to 750 nm.
    Type: Application
    Filed: October 25, 2012
    Publication date: December 4, 2014
    Applicant: Corning Incorporated
    Inventors: Nicholas Francis Borrelli, Karl William Koch, Joseph Francis Schroeder
  • Patent number: 8869558
    Abstract: To provide a glass substrate for a display cover glass not only having excellent strength and antibacterial properties but also having a high transparency and a high visible transmittance suitable as a cover glass for a display device. A glass substrate for a display cover glass, which comprises a surface compressive stress layer and an antibacterial substance-containing layer formed on the glass substrate surface, characterized by having a ratio (T1/T2) of the transmittance T1 at a wavelength of 428 nm to the transmittance T2 at a wavelength of 650 nm of the glass substrate of at least 0.95, and a transmittance at a wavelength of 428 nm of at least 86% when the thickness of the glass substrate is from 0.1 to 3.0 mm.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: October 28, 2014
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiroyuki Yamamoto, Yusaku Matsuo
  • Publication number: 20140243183
    Abstract: A down-drawable glass ceramic. The glass ceramic has a composition which yields a liquidus viscosity that enables formation of the parent glass by down-draw techniques such as fusion-draw and slot-draw methods. The resulting glass ceramic is white or translucent in appearance with high strength achieved through heat treatment of the fusion-formed glass.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 28, 2014
    Applicant: Corning Incorporated
    Inventors: George Halsey Beall, Heather Debra Boek, Alexandre Michel Mayolet, Mark Owen Weller
  • Patent number: 8813520
    Abstract: A glass substrate chemically strengthened, includes a primary surface that has a compressive stress layer formed in an uppermost surface layer thereof. The compressive stress layer is configured to enhance strength of the glass substrate due to a compressive stress generated in the compressive stress layer. The compressive layer consists of a layer of a potassium ion concentration equal to or less than 5000 parts per million (ppm).
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: August 26, 2014
    Assignee: HOYA Corporation
    Inventors: Kazuaki Hashimoto, Yoshikazu Hirose
  • Patent number: 8776547
    Abstract: This disclosure describes a process for strengthening, by ion-exchange, the edges of an article separated from a large glass sheet after the sheet has been ion-exchanged to strengthen by exposing only the one or a plurality of the edges of the separated article to an ion-exchange medium (for example without limitation, a salt, paste, frit, glass) while the glass surface is maintained at temperatures less than 200° C.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: July 15, 2014
    Assignee: Corning Incorporated
    Inventors: Anatoli Anatolyevich Abramov, Sinue Gomez, Lisa Anne Moore, Alexander Mikhailovich Streltsov, Sergio Tsuda, Jonathan E Walter
  • Patent number: 8759238
    Abstract: An ion exchangeable glass that is free of lithium and comprising 0.1-10 mol % P2O5 and at least 5 mol % Al2O3. The presence of P2O5 enables the glass to be ion exchanged more quickly and to a greater depth than comparable glasses that do not contain P2O5.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: June 24, 2014
    Assignee: Corning Incorporated
    Inventors: Christy Lynn Chapman, Matthew John Dejneka, Sinue Gomez, Lisa Ann Lamberson
  • Publication number: 20140154438
    Abstract: A glass container and a process for chemically modifying a surface portion of a glass container using an ion-exchange process. At least a portion of the glass container is immersed in or in contact with an aqueous electrolyte solution comprising salts of at least one group IA alkali metal and having a temperature of about 75 degrees Celsius such that exchangeable alkali metal ions in a surface portion of the glass container are exchanged or replaced by alkali metal ions in the electrolyte solution. The alkali metal ions that replace the exchangeable ions in the surface portion of the glass container have either a smaller or a larger atomic radius than the exchangeable ions.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: Owens-Brockway Glass Container Inc.
    Inventor: Owens-Brockway Glass Container Inc.
  • Patent number: 8722138
    Abstract: In a method of manufacturing a glass substrate for an information recording medium including a step for chemically strengthening the glass substrate by contacting the glass substrate with chemical strengthening processing liquid containing chemical strengthening salt, concentration of Fe and Cr is 500 ppb or less in said chemical strengthening salt, respectively. The concentration may be detected by the use of an ICP (Inductively Coupled Plasma) emission spectrometry analyzing method or a fluorescent X-ray spectroscopy analyzing method.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: May 13, 2014
    Assignee: Hoya Corporation
    Inventors: Hiroaki Ikeda, Masaru Suzuki, Kazuna Sasaki, Yumi Mukai, Jun Ozawa
  • Patent number: 8709148
    Abstract: Particles colored with at least one colorant, where the colored glass particles are glass platelets with an average diameter of 1 to 500 ?m and the colorants at least include at least one of metallic nanoparticles and metal oxides. The glass platelets are planar and the colorants are present in a concentration from 1% to 55% by weight, based on the total weight of the colored glass platelets. The disclosure further relates to a method to a method for producing the colored glass particles and to the use thereof.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: April 29, 2014
    Assignee: Eckart GmbH
    Inventors: Stefan Trummer, Ulrich Schmidt, Dirk Schumacher, Günter Kaupp, Christian Wolfrum
  • Patent number: 8656735
    Abstract: To provide a novel fluorination treatment method whereby the surface of oxide glass can be treated for fluorination at low cost and with excellent adhesiveness. A method for treating the surface of oxide glass, which comprises contacting the surface of oxide glass with a gas of a fluorinating agent or a mixed gas having a fluorinating agent diluted with an inert gas, wherein the fluorinating agent is an elemental fluorine, or a fluorine compound capable of cleaving a bond between an oxygen atom and a metal atom in the framework of the oxide glass and forming a bond between a fluorine atom and the metal atom; and the concentration of hydrogen fluoride at the surface of oxide glass with which the fluorinating agent is in contact, is controlled to be at most 1 mol %.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: February 25, 2014
    Assignee: Asahi Glass Company, Limited
    Inventors: Chikaya Tamitsuji, Kunio Watanabe
  • Patent number: 8613206
    Abstract: This invention provides a method for manufacturing a glass substrate for a magnetic disk comprising a chemical strengthening step. The method provides a glass substrate for a magnetic disk that can suppress the occurrence of very small waves in cooling a glass substrate after the chemical strengthening step, and, while preventing troubles such as head crush and thermal asperity, can realize lowered flying height of a magnetic head and high-density information recording, and is particularly suitable for application to small-size magnetic disks for portable information equipment. In the step of cooling after the chemical strengthening step, cooling treatment is carried out in which the glass substrate is brought into contact with a treatment liquid containing a melt of a material having a solidification temperature below that of a chemical strengthening salt.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: December 24, 2013
    Assignee: Hoya Corporation
    Inventor: Katsuyuki Iwata
  • Patent number: 8561429
    Abstract: A strengthened glass that does not exhibit frangible behavior when subjected to impact or contact forces, and a method of strengthening a glass. The glass may be strengthened by subjecting it to multiple, successive, ion exchange treatments. The multiple ion exchange treatments provide a local compressive stress maximum at a depth of the strengthened layer and a second local maximum at or near (e.g., within 10 ?m) the surface of the glass.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: October 22, 2013
    Assignee: Corning Incorporated
    Inventors: Douglas Clippinger Allan, Adam James Ellison, Sinue Gomez
  • Publication number: 20130233018
    Abstract: To provide a method of manufacturing a porous glass in which the porosity decreases as a function of the distance from the surface in the direction of depth. A method of manufacturing a porous glass includes a step of bringing one or more than one ion species selected from silver ion, potassium ion and lithium ion into contact with a matrix glass containing borosilicate glass as main ingredient and heating the matrix glass to form a glass body having an ion concentration distribution with a concentration of the one or more than one ion species decreasing as a function of a distance from a surface in a direction of depth, a step of heating and phase-separating the glass body to form a phase-separated glass, and a step of etching the phase-separated glass to form a porous glass having a porosity decreasing as the function of the distance from the surface in the direction of depth.
    Type: Application
    Filed: November 25, 2011
    Publication date: September 12, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenji Takashima, Zuyi Zhang, Yoshinori Kotani, Akira Sugiyama, Naoyuki Koketsu
  • Patent number: 8455157
    Abstract: The improvement of the performance of holographic glasses with recorded holograms as measured by a figure of merit of the holographic glasses is disclosed. The improvement in the figure of merit of the holographic glasses is obtained at least in part with the addition of arsenic in the formation of the holographic glasses. The presence of arsenic increases the figure of merit as measured at a wavelength of interest of a holographic glass with a recorded hologram as compared to a holographic glass with a recorded hologram that does not contain arsenic.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: June 4, 2013
    Assignee: PD-LD, Inc.
    Inventors: Eliezer M. Rabinovich, Boris L. Volodin, Vladimir S. Ban, Elena D. Melnik
  • Publication number: 20130133745
    Abstract: Leaching alkali ions from a glass substrate to form a glass substrate having an intrinsic alkali barrier layer includes providing a glass substrate comprising alkali metal ions and having at least two opposing surfaces and a thickness between the surfaces, and contacting at least one of the surfaces of the substrate with a solution comprising alkaline earth salts in either water or as a melted salt bath such that at least a portion of the alkali metal ions are replaced by alkaline earth metal ions in the at least one surface and into the thickness to form the glass substrate having an intrinsic alkali barrier layer.
    Type: Application
    Filed: November 6, 2012
    Publication date: May 30, 2013
    Inventors: James Patrick Hamilton, Kenneth Edward Hrdina
  • Publication number: 20130119313
    Abstract: A silicate fluorescent material is provided. The general chemical formula of the luminescent material is Ln2SiO5:Tb, M, wherein Ln represents at least one of the elements selected from Y, Gd, La or Lu, M represents at least one of the nanoparticles selected from Ag, Au, Os, Ir, Pt, Ru, Rh or Pd, the mole ratio of Tb to Ln is greater than 0 but not greater than 0.25. The porous glass containing metal nanoparticles is prepared by introducing metal nano ions into the porous glass and extracting the uniformly dispersed metal nanoparticles from the porous glass via a chemical reduction method. A silicate fluorescent material with enhanced luminescence is obtained by substituting SiO2 which is the raw material in the process for preparing the silicate fluorescent material via the conventional high temperature solid phase sintering with the porous glass containing metal nanoparticles.
    Type: Application
    Filed: July 28, 2010
    Publication date: May 16, 2013
    Inventors: Mingjie Zhou, Wenbo Ma, Yanbo Qiao
  • Publication number: 20130105734
    Abstract: A preparation method of rare earth ions doped alkali metal silicate luminescent glass is provided. The steps involves: step 1, mixing the source compounds of cerium, terbium and alkali metals and putting the mixture into solvent to get a mixed solution; step 2, impregnating the nanometer micropores glass with the mixed solution obtained in step 1; step 3: calcining the impregnated nanometer micropores glass obtained in step 2 in a reducing atmosphere, cooling to room temperature, then obtaining the cerium and terbium co-doped alkali metal silicate luminescent glass. Besides, the rare earth ions doped alkali metal silicate luminescent glass prepared with aforesaid method is also provided. In the prepared luminescent glass, cerium ions can transmit absorbed energy to terbium ions under the excitation of UV light due to the co-doping of cerium ions. As a result, the said luminescent glass has higher luminous intensity than the glass only doped with terbium.
    Type: Application
    Filed: July 14, 2010
    Publication date: May 2, 2013
    Inventors: Mingjie Zhou, Yanbo Qiao, Wenbo Ma
  • Patent number: 8413464
    Abstract: The present invention provides a method for producing a glass substrate for a magnetic disk in which the occurrence of micro-waviness on the glass substrate is prevented in a cooling step after a chemically strengthening step so that the glass substrate has a significantly smooth principal surface, and provides a method for producing a magnetic disk in which head crash, thermal asperity failures, and the like are prevented, the flying height of a magnetic head can be decreased, and high-density recording is enabled.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: April 9, 2013
    Assignee: Hoya Corporation
    Inventors: Katsuyuki Iwata, Hideki Isono, Kenichiro Terada
  • Publication number: 20130047671
    Abstract: Disclosed is a method of reducing the compaction of glass formed by a down draw process. The glass may be a glass sheet or a glass ribbon. Once the glass is formed, it is thermally treated on a molten metal bath for a time and at a temperature effective to reduce the fictive temperature of the glass below a predetermined level. In one embodiment, a glass ribbon is formed in a fusion process and the glass ribbon redirected onto a molten metal bath where the ribbon is thermally treated.
    Type: Application
    Filed: August 29, 2011
    Publication date: February 28, 2013
    Inventor: Jeffrey T. Kohli
  • Patent number: 8349454
    Abstract: An object of the invention is to obtain a glass substrate having high mechanical strength by reconciling suitability for ion exchange and devitrification proof in a glass. The strengthened glass substrate of the invention is a strengthened glass substrate having a compression stress layer in the surface thereof, the glass substrate having a glass composition including, in terms of % by mass, 40-70% of SiO2, 12-25% of Al2O3, 0-10% of B2O3, 0-8% of Li2O, 6-15% of Na2O, 0-10% of K2O, 13-20% of Li2O+Na2O+K2O, 0-3.9% of MgO, 0-5% of CaO, 0-5% of ZnO, 0-6% of ZrO2, and 0-5% of SrO+BaO, the value of (MgO+ZrO2+ZnO)/(MgO+ZrO2+ZnO+Al2O3) in terms of mass proportion being from 0.25 to 0.45. The above-mentioned strengthened glass can be produced by melting raw glass materials mixed together so as to result in the given glass composition, forming the melt into a sheet by an overflow downdraw process, and then conducting an ion exchange treatment to form a compression stress layer in the glass sheet surface.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: January 8, 2013
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Takashi Murata, Hiroki Yamazaki
  • Patent number: 8312739
    Abstract: A method of chemically strengthening a glass. The method includes ion exchange of the glass in a first bath, followed by immersion in the second bath. The first bath is diluted with an effluent ion. The second bath has a smaller concentration of the effluent ion than the first bath. The method provides a compressive stress at the surface of the glass that is sufficient to arrest flaws introduced by contact forces at the surface of the glass while having sufficiently deep compressive depth-of-layer for high reliability.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: November 20, 2012
    Assignee: Corning Incorporated
    Inventors: Christopher Morton Lee, Lawrence George Mann, Jose Mario Quintal, Yongsheng Yan
  • Publication number: 20120165178
    Abstract: Glass having an optimized degree of cross-linking of the phosphate component in the glass matrix is provided so that excellent weatherability is achieved. These glasses are fluorophosphate glasses that contain copper oxide as colouring component. The glasses can further contain colouring components and are obtainable in a method that includes a bubbling step.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Applicant: SCHOTT AG
    Inventors: Simone Ritter, Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Patent number: 8193128
    Abstract: The disclosed invention relates to a process of using molten salt ion exchange to treat particles such as spherically shaped soda-lime-silica glass particles. The treated particles may be used as proppants in hydrofractured oil and natural gas wells.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: June 5, 2012
    Assignee: The Penn State Research Foundation
    Inventors: John R. Hellmann, Barry E. Sheetz, Ryan P. Koseski
  • Patent number: 8166778
    Abstract: The invention relates to a pane that has undergone a chemical toughening operation so as to have an alkali-metal-ion concentration gradient from its surface over an exchange depth of at least 100 ?m, a surface stress of at least 200 MPa, and a strain point at the core of at least 550° C. The pane can be used especially in the field of domestic cooking, as a pyrolytic oven door, stove, fire guard, flue insert, and more generally for separating two gaseous atmospheres at different temperatures. The pane is particularly resistant to heat shocks.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: May 1, 2012
    Assignee: Saint-Gobain Glass France
    Inventor: Franck Marandon
  • Publication number: 20110265517
    Abstract: A method of making a 3D glass article includes forming at least one marker on an edge of a 2D glass piece. The 2D glass piece is thermally reformed into a 3D glass article, where the at least one marker formed on the edge of the 2D glass piece is carried over to an edge of the 3D glass article. The 3D glass article is aligned on a support using the at least one marker on the edge of the 3D glass article. Then, the edge of the 3D glass article is finished to a final shape and dimension.
    Type: Application
    Filed: April 26, 2011
    Publication date: November 3, 2011
    Inventors: Thomas A. Keebler, Robert Sabia, Ljerka Ukrainczyk
  • Publication number: 20110259052
    Abstract: Unit for the surface treatment of flat glass, in particular in the form of a ribbon or a sheet, especially by modifying the chemical, optical or mechanical properties, or the deposition of one or more thin films, comprising heating and cooling means for creating a controlled temperature gradient through the thickness of the glass, means for heating that face to be treated, in order for it to always be at the required temperatures and for the times necessary for obtaining effective treatments of the surface thereof and means for cooling the opposite face in order for this opposite face to have a viscosity of between 1013 dPa·s and 2.3×1010 dPa·s.
    Type: Application
    Filed: July 24, 2009
    Publication date: October 27, 2011
    Applicant: FIVES STEIN
    Inventor: Wolf Stefan Kuhn
  • Publication number: 20110251293
    Abstract: Glass particles colored with at least one colorant, where the colored glass particles are glass platelets with an average diameter of 1 to 500 ?m and the colorants comprise or consist of at least one of metallic nanoparticles and metal oxides. The glass platelets are planar and the colorants are present in a concentration from 1% to 55% by weight, based on the total weight of the colored glass platelets. The disclosure further relates to a method for producing the colored glass particles and to the use thereof.
    Type: Application
    Filed: November 24, 2009
    Publication date: October 13, 2011
    Inventors: Stefan Trummer, Ulrich Schmidt, Dirk Schumacher, Günter Kaupp, Christian Wolfrum
  • Publication number: 20110209761
    Abstract: This flat mineral glass comprises a first free surface and a second free surface, and comprises groups of zones having a high refractive index (n2) and zones having a low refractive index (n1) which are formed in the thickness of the flat glass between the first and second free surfaces, over a depth of between 1 and 1000 ?m starting from the first free surface. These high-index zones and low-index zones alternate along a direction transverse to the thickness direction of the glass between the first and second free surfaces, the high-index zones flaring out from the first free surface toward the second free surface, and the envelope surfaces of the high-index zones making an angle (?) of at least 65° with respect to the first free surface.
    Type: Application
    Filed: November 2, 2009
    Publication date: September 1, 2011
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Guillaume Counil, Michele Schiavoni, Arnaud Huignard, Julien Sellier, Xavier Brajer
  • Publication number: 20110199687
    Abstract: The process according to the invention is based on the simultaneous ion exchange of two ions having an almost identical mobility with the ions of a glass substrate, at least one of the aforementioned two ions being used in the form of an enamel.
    Type: Application
    Filed: March 25, 2009
    Publication date: August 18, 2011
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Julien Sellier, Arnaud Huignard, Xavier Brajer
  • Patent number: 7934391
    Abstract: The present invention is to provide a synthetic quartz glass body having a high light transmittance. The present invention provides a synthetic quartz glass body having pores in a surface part thereof.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: May 3, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Chikaya Tamitsuji, Kunio Watanabe, Kaname Okada, Daisuke Kobayashi