Patents Assigned to Asahi Glass Company Ltd.
  • Apparatus for producing deionized water
    Patent number: 6334941
    Abstract: An apparatus for producing deionized water, which has an ion exchanger accommodated in demineralizing compartments of an electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged between an anode and a cathode, wherein the ion exchanger is a composite ion exchanger comprising a first porous ion exchanger having a mixture of 60 to 95 wt % of cation exchange resin particles and 5 to 40 wt % of anion exchange resin particles bonded to each other and a second porous ion exchanger having a mixture of 60 to 95 wt % of anion exchange resin particles and 5 to 40 wt % of cation exchange resin particles bonded to each other.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: January 1, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventor: Junjiro Iwamoto
  • Target and process for its production, and method for forming a film having a high refractive index
    Patent number: 6334938
    Abstract: A sputtering target comprising a substrate and a target material formed on the substrate, wherein the target material comprises a metal oxide of the chemical formula MOx as the main component, wherein MOx is a metal oxide which is deficient in oxygen as compared with the stoichiometric composition, and M is at least one metal selected from the group consisting of Ti, Nb, Ta, Mo, W, Zr and Hf, a process for its production, and a method for forming a film having a high refractive index.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: January 1, 2002
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Otojiro Kida, Akira Mitsui, Eri Suzuki, Hisashi Osaki, Atsushi Hayashi, Takuji Oyama, Kenichi Sasaki
  • Fluorine-containing polymer composition
    Publication number: 20010051700
    Abstract: A fluorine-containing polymer composition comprising a fluorine-containing solvent of the formula R1—O—R2 wherein R1 is a C5-12 linear or branched polyfluoroalkyl group which may have an ether bond, and R2 is a C1-5 linear or branched alkyl group, and a fluorine-containing amorphous polymer having a fluorine-containing ring structure in its main chain, dissolved in the solvent.
    Type: Application
    Filed: June 29, 2001
    Publication date: December 13, 2001
    Applicant: ASAHI GLASS COMPANY LTD.
    Inventors: Ikuo Matsukura, Naoko Shirota
  • Transparent conductive film and method of making the film
    Patent number: 6329044
    Abstract: Transparent conductive films are provided which provide high sheet resistance, high transparency, high heat resistance and high moisture resistance, wherein the transparent conductive films contain either (a) an oxide film made of a mixed oxide of indium and tin and doped with at least 0.01 and less than 0.6 weight % of nitrogen and a geometrical thickness of from 5 to 25 nm or (b) an oxide film made of a mixed oxide of indium and tin, wherein the oxide film contains tin within a range of from 4.2 to 8.3 atomic % based on indium and a geometrical thickness of from 5 to 20 nm, and where in each case (a) and (b) the oxide film has a light transmittance of more than 90% at a wavelength of 550 nm, transparent conductive film-coated substrates prepared therefrom and touch panels prepared from the transparent conductive film-coated substrates.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: December 11, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Katsumi Inoue, Yasuhiko Akao, Satoru Takaki, Yasuo Hayashi, Teruo Fujiwara
  • Vacuum degassing apparatus for molten glass
    Patent number: 6321572
    Abstract: A vacuum degassing apparatus includes a lifter to absorb deformation in a vertical direction due to thermal expansion of the vacuum degassing, a slider to absorb thermal expansion of the vacuum degassing vessel in a longitudinal direction thereof, or a thermal expansion absorbing layer to absorb thermal expansion of an uprising pipe and a downfalling pipe in a cross-sectional direction, or a thermal expansion absorbing layer provided along a portion of an outer surface of the vacuum degassing vessel in a height direction.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: November 27, 2001
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Yusuke Takei, Masataka Matsuwaki, Yasuharu Hirabara, Takashi Kijima, Mitsuo Sugimoto
  • Electrode for an electric double layer capacitor and process for producing it
    Publication number: 20010042881
    Abstract: A process for producing an electrode for an electric double layer capacitor, which comprises extruding a mixture comprising a carbonaceous material, a polytetrafluoroethylene and a processing aid by screw extrusion, and rolling the obtained extruded product by rolling rolls to form it into a sheet shape.
    Type: Application
    Filed: June 6, 2001
    Publication date: November 22, 2001
    Applicant: Asahi Glass Company, Ltd.
    Inventors: Takamichi Ishikawa, Satoru Kuroki, Manabu Suhara, Sadao Kanetoku
  • Vacuum degassing method for molten glass
    Patent number: 6318126
    Abstract: A vacuum degassing method for molten glass, which comprises introducing molten glass into a vacuum degassing apparatus, subjecting it to degassing treatment under a predetermined reduced pressure condition and then withdrawing it for a subsequent step, wherein during the degassing treatment, a metal compound which is at least one compound of metal selected from the group consisting of aluminum, titanium, silicon, zinc, magnesium, iron, chromium, cobalt, cerium and calcium, is supplied from outside of the vacuum degassing apparatus to the surface of a bubble layer formed in the molten glass to diminish or extinguish the bubble layer.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: November 20, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yusuke Takei, Masataka Matsuwaki, Michito Sasaki, Takashi Kijima, Atsushi Tanigaki
  • Phosphate type water and oil repellent composition
    Patent number: 6315822
    Abstract: A water and oil repellent composition comprising, as essential components, a phosphate of the following formula 1, a nonionic surfactant made of a compound containing at least one carbon-carbon triple bond and at least one hydroxyl group in its molecule and an aqueous medium: (Rf—Q—O—)mPO(OH)n(O−)3−m−n.(Y+)3−m−n  Formula 1 wherein Rf is a polyfluoroalkyl group, Q is a bivalent organic group, Y+ is a monovalent counter ion, m is an integer of from 1 to 3, and n is an integer of from 0 to 2, provided that (m+n) is 1, 2 or 3.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: November 13, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kazuya Oharu, Minako Shindo
  • Vacuum degassing apparatus for molten glass
    Publication number: 20010037661
    Abstract: Molten glass has a liquid level located at a higher level than lower ends of an uprising pipe and a downfalling. In addition, a contacting portion of the uprising pipe or the downfalling pipe and a brick receiver on an upstream or downstream pit for supporting the uprising or downfalling pipe, or a joint in the brick receiver is filled with sealing material.
    Type: Application
    Filed: May 17, 2001
    Publication date: November 8, 2001
    Applicant: Asahi Glass Company Ltd.
    Inventors: Yusuke Takei, Shigekuni Inoue, Michito Sasaki, Yasuharu Hirabara, Atsushi Tanigaki, Mitsuo Sugimoto
  • Process for forming a glass sheet
    Patent number: 6311523
    Abstract: A process for forming a glass sheet, which is a process for continuously forming a glass sheet, and which comprises a step of introducing a vapor film-forming agent, which is not vapor at least around room temperature and which is vapor at a temperature above the glass transition point of the glass, into a support composed of a structure or a material capable of internally containing liquid, and a step of sliding the support and the glass of which temperature is above the glass transition point against each other via a thin layer of a vaporized vapor film-forming agent.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: November 6, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Gen Kojima, Tsutomu Koyama, Akira Takada, Masao Unoki, Kiyoshi Matsumoto
  • Glass for a substrate
    Patent number: 6313052
    Abstract: A glass for a substrate, having an average thermal expansion coefficient in the range of from 60×10−7 to 75×10−7/° C. at 50 to 350° C., which consists essentially of the following composition expressed by wt %: wt % SiO2 more than 62 to 74, Al2O3  1 to 15, MgO  0 to 9, CaO  0 to 14, Na2O  0 to 12, K2O  0 to 13, SiO2 + Al2O3 72 to 82, MgO + CaO  5 to 24, Na2O + K2O  1 to 15, MgO + CaO + Na2O + K2O 18 to 28.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: November 6, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Tetsuya Nakashima, Kei Maeda, Yasumasa Nakao
  • Vacuum degassing apparatus for molten glass
    Patent number: 6308534
    Abstract: Molten glass has a liquid level located at a higher level than lower ends of an uprising pipe and a downfalling. In addition, a contacting portion of the uprising pipe or the downfalling pipe and a brick receiver on an upstream or downstream pit for supporting the uprising or downfalling pipe, or a joint in the brick receiver is filled with sealing material.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: October 30, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yusuke Takei, Shigekuni Inoue, Michito Sasaki, Yasuharu Hirabara, Atsushi Tanigaki, Mitsuo Sugimoto
  • Electric double layer capacitor
    Patent number: 6310763
    Abstract: An electric double layer capacitor having an element impregnated with a non-aqueous electrolyte, the element comprising positive and negative electrodes made of carbonaceous electrodes, and a separator interposed between the electrodes, wherein the separator is made of paper prepared to contain at least 50 wt % of fibers obtained by beating regenerated cellulose fibers.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: October 30, 2001
    Assignees: Asahi Glass Company Ltd., Nippon Kodoshi Corporation
    Inventors: Manabu Suhara, Kazuya Hiratsuka, Takeshi Kawasato, Katsuji Ikeda
  • Composition for treating paper and paper treated therewith
    Patent number: 6306944
    Abstract: A composition for treating paper comprising a polymer (A), a surfactant (B) and a medium (C), wherein said polymer (A) comprises polymer units of (meth)acrylate having a polyfluoroalkyl group, polymer units of a vinylidene halide and/or polymer units of a long chain alkyl(meth)acrylate, and polymer units of the following formula 1: —[CH2—C(R)[CO—Q—(CH2)nCHR4—CH2N+(R1)(R2)(R3).X−]]—,  Formula 1 wherein R is a hydrogen atom or a methyl group; Q is —O— or —NR5—, wherein R5 is a hydrogen atom or an alkyl group; each of R1, R2 and R3 which are independent of one another is a hydrogen atom or an alkyl group; R1 and R2 may together form a bivalent organic group; R4 is a hydrogen atom or a hydroxyl group; n is a number from 1 to 4 and X− is a counter ion.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: October 23, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventor: Ryuji Seki
  • Optical head, method of manufacturing the same and diffraction element suitable therefor
    Publication number: 20010030732
    Abstract: An optically anisotropic diffraction grating for an optical read/write head, comprising optically isotropic polymer liquid crystal held between two transparent base plates. Gratings of different refractive indexes are formed by periodically changing the orientation of the polymer liquid crystal of the diffraction grating. This enables a high light-utilization efficiency and a high reliability to be obtained.
    Type: Application
    Filed: June 13, 2001
    Publication date: October 18, 2001
    Applicant: Asahi Glass Company, Ltd.
    Inventors: Yuzuru Tanabe, Tomoki Gunjima, Hiromasa Sato, Hiroki Hotaka
  • Transparent conductive film and process for forming a transparent electrode
    Publication number: 20010030170
    Abstract: A transparent conductive film having a transparent oxide layer and a metal layer containing Ag, laminated in this order from a substrate side in a total of (2n+1) layers), wherein n is an integer of at least 1, wherein the transparent oxide layer contains ZnO and further contains In within a range of from 9 to 98 atomic % based on the sum of Zn and In, and a process for forming a transparent electrode.
    Type: Application
    Filed: February 15, 2001
    Publication date: October 18, 2001
    Applicant: Asahi Glass Company Ltd.
    Inventors: Satoru Takaki, Kazuo Sato, Masami Miyazaki, Yuki Kawamura, Hiromichi Nishimura
  • Optical head, method of manufacturing the same, and diffraction element suitable therefor
    Patent number: 6304312
    Abstract: As an optically anisotropic diffraction grating in an optical head for reading and/or writing of an optically recording medium, optically anisotropic diffraction grating which comprises an optically anisotropic polymer liquid crystal sandwiched between two transparent substrates are used. The optically anisotropic polymer liquid crystal can have an alignment direction periodically changed to form a grating of different refractive indices, obtaining a high-utilization efficiency by light ray and a high degree of reliability.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: October 16, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yuzuru Tanabe, Tomoki Gunjima, Hiromasa Sato, Hiroki Hotaka
  • Optical waveguide
    Publication number: 20010028778
    Abstract: An optical waveguide provided on a substrate, which comprises a core for transmitting light and a clad formed around the core, wherein the clad is made of a fluorinated alicyclic structure-containing polymer having functional groups.
    Type: Application
    Filed: May 18, 2001
    Publication date: October 11, 2001
    Applicant: Asahi Glass Company, Ltd.
    Inventors: Katsumi Suzuki, Ikuo Matsukura
  • Fluorine-containing resin composition
    Publication number: 20010029284
    Abstract: In 100 parts by weight of a composition, from 2 to 89 parts by weight of a fluorinated polymer having a fluorine content of at least 65 wt %, from 97 to 10 parts by weight of a non-fluorinated polymer and from 1 to 35 parts by weight of a dispersing agent having a carboxylic acid group or its derivative, or a sulfonic acid group or its derivative, are blended.
    Type: Application
    Filed: May 16, 2001
    Publication date: October 11, 2001
    Applicant: ASAHI GLASS COMPANY, LTD.
    Inventors: Masako Nagashima, Takeshi Eriguchi, Yuriko Kaida, Hiroki Kamiya, Masao Umino, Masataka Yokota
  • Low emissivity film
    Patent number: RE37446
    Abstract: A low emissivity film which comprises: a substrate; and a coating of oxide and metallic films alternately formed on the substrate in a total of (2n+1) layers where n is an integer being equal to or more than 1, with the innermost layer being an oxide film, wherein the oxide film (B) formed on the outer side of the metallic film (A) being most apart from the substrate, has an internal stress which is equal to, or less than 1.1×1010 dyne/cm2.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: November 13, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Masami Miyazaki, Eiichi Ando