Patents Assigned to Asahi Glass Company Ltd.
  • Patent number: 6898067
    Abstract: An electric double layer capacitor which has a low internal resistance and a large capacitance per unit volume and which is excellent in the voltage retention property, is provided. In a non-aqueous type electric double layer capacitor having a separator disposed between a positive electrode and a negative electrode made of carbonaceous electrodes, the separator comprises a sheet having a thickness of from 10 to 100 ?m and a porosity of from 50 to 90% and a netted spacer having a thickness of from 10 to 100 mm, a numerical aperture of from 30 to 85% and an opening of from 50 to 350 mesh, laminated one on the other.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: May 24, 2005
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kazuya Hiratsuka, Manabu Suhara, Takeshi Kawasato, Naruaki Tomita, Naoki Yoshida, Yoshiaki Higuchi
  • Publication number: 20050019617
    Abstract: A synthetic resin molded material characterized in that a thin film made of an oxide of at least one metal selected from the group consisting of Si, Zr, Ti, Ta, Hf, Mo, W. Nb, Sn, In, Al and Zn, is formed by a dry method on a synthetic resin substrate having hydrophobicity, and a method for its production.
    Type: Application
    Filed: August 17, 2004
    Publication date: January 27, 2005
    Applicant: ASAHI GLASS COMPANY LTD.
    Inventors: Kazuo Harada, Atsushi Hayashi, Tatsuo Momii, Teruo Takakura, Seitoku Kaya
  • Patent number: 6829910
    Abstract: A method for forming a magnetic disk comprises the following steps. First, an inner and outer cut is provided in a work piece. The waste piece thus comprises an outer waste piece, an inner waste piece, and a region between the inner and outer waste pieces that is to be used as a substrate for manufacturing a magnetic disk. The outer waste piece is separated from the substrate by applying a hot plate against the outer waste piece, thereby causing it to thermally expand and separate from the substrate. The substrate is then placed over (but not in contact with) a hot plate, while a cooling element is placed on the inner waste piece. This causes the substrate to thermally expand while the inner waste piece thermally contracts. Thus, a gap forms between the substrate and inner waste piece, thereby permitting the separation of the inner waste piece from the substrate.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: December 14, 2004
    Assignee: Asahi Glass Company, Ltd.
    Inventors: John Hsieh, Robert M. Tierney
  • Publication number: 20040247265
    Abstract: A branching method for an optical fiber cable containing a plurality of plastic optical fibers, which comprises cutting a desired optical fiber in the cable without cutting the cable in its entirety, at a non-terminal position of the cable, to form a terminal of the fiber.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 9, 2004
    Applicant: ASAHI GLASS COMPANY, LTD.
    Inventors: Yoshinobu Takano, Yuji Watanabe
  • Patent number: 6803098
    Abstract: A synthetic resin molded material characterized in that a thin film made of an oxide of at least one metal selected from the group consisting of Si, Zr, Ti, Ta, Hf, Mo, W, Nb, Sn, In, Al and Zn, is formed by a dry method on a synthetic resin substrate having hydrophobicity, and a method for its production.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: October 12, 2004
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kazuo Harada, Atsushi Hayashi, Tatsuo Momii, Teruo Takakura, Seitoku Kaya
  • Patent number: 6800344
    Abstract: A cathode ray tube glass comprises a clean cathode ray tube made of glass and a coating film composed of at least one water-soluble material selected from the group consisting of water-soluble salts, acids being solid at room temperature, monosaccharides and polysaccharides, which is formed on a glass surface of the cathode ray tube in an amount of 0.01-100 &mgr;g/cm2 or to a film thickness of 0.1-200 nm.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: October 5, 2004
    Assignee: Asahi Glass Company Ltd.
    Inventors: Mikio Sasaki, Satoshi Rokudai
  • Patent number: 6795274
    Abstract: A method for manufacturing a substrate for a magnetic disk comprises the acts of mounting a workpiece on a spindle; rotating the workpiece and scribing the workpiece to form first and second scribe lines on the top surface of the workpiece and first and second scribe lines on the bottom surface of the workpiece; and breaking the workpiece along the first and second scribe lines. The first scribe line on the top and bottom surface of the work piece defines the outer diameter of the substrate. The second scribe line on the top and bottom surface of the workpiece define the inner diameter of the substrate. Because scribe lines are formed on the top and bottom surfaces of the workpiece, the edge of the substrate is less jagged than substrates that are merely scribed on one side of the workpiece and then broken. Because the scribe lines are formed by mounting the workpiece on a spindle and rotating the substrate, the scribing can be done more precisely and quickly than scribe lines formed using an x-y platform.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: September 21, 2004
    Assignee: Asahi Glass Company, Ltd.
    Inventors: John Hsieh, Andrew Homola, David Vigdor Salamon, Holland Hodges
  • Patent number: 6783861
    Abstract: A glazing panel carrying a coating stack comprises in sequence at least: a glass substrate a base antireflective layer an infra-red reflecting layer, and a top antireflective layer and is characterised in that at least one of the antireflective layers comprises at least one mixed oxide layer which comprises an oxide which is a mixture of Zn and at least one additional material X, in which the atomic ratio X/Zn is greater than or equal to 0.12 and in which X is one or more of the materials selected from the group comprising the elements of groups 2a, 3a, 5a, 4b, 5b, 6b of the periodic table. The glazing panel exhibits a combination of advantageous properties, particularly thermal stability.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: August 31, 2004
    Assignee: Asahi Glass Company Ltd.
    Inventors: Junichi Ebisawa, Nobutaka Aomine, Satoshi Takeda, Kazuyoshi Noda, Daniel Decroupet
  • Patent number: 6780934
    Abstract: A room temperature-setting composition containing a polyoxyalkylene polymer (A) having a molecular weight ranging from 8000 to 50000 and having hydrolyzable silicon groups of the following formula (1): —SiXaR13−a  (1) wherein R1 is a C1-20 substituted or unsubstituted monovalent organic group, X is a hydroxyl group or a hydrolyzable group, a is 1, 2 or 3, provided that when more than one R1 group is present, the R1 groups may be the same or different, and when more than one X group is present, the X groups may be the same or different, the composition comprising, as an essential component, the polyoxyalkylene polymer, having a molecular weight ranging from 8000 to 50000 and having hydrolyzable silicon groups of formula (1), wherein a is 3, or the composition comprises a polyoxyalkylene polymer component as defined above which contains said essential specific polyoxyalkylene polymer component, and a polymer (B) made by polymerization of a polymerizable unsaturated group-containing monom
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: August 24, 2004
    Assignee: Asahi Glass Company Ltd.
    Inventors: Takao Doi, Takashi Watabe, Tomoko Matsumoto, Tatsuo Onoguchi, Kaori Tsuruoka
  • Patent number: 6766046
    Abstract: A sheet screen is provided on one of sides of test glass, and a projected image of the test glass is electronically and directly picked up. After tone image signals of the test glass thus picked up are binarized while modifying threshold values according to brightness of a background in the tone image, the number of fragments, the area of the greatest fragment and the length of the longest fragment are calculated. Thus, operations, such as calculating the number of the fragments, can be automatically performed by directly picking up an image of the test glass, allowing a fragmentation test to be carried out with good operability and high precision.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: July 20, 2004
    Assignees: Asahi Glass Company Ltd., Nippon Control System Corporation
    Inventors: Hitoshi Saito, Tetsuo Tajima
  • Patent number: 6751988
    Abstract: A method for manufacturing a curved sheet of glass which includes a heating furnace for heating a sheet of glass therein, the heating furnace having an outlet opening for discharging a curved sheet of glass, and an array of beds housed in the furnace for transferring a sheet of glass successively over the beds in the furnace in a first direction toward the outlet opening while shaping the sheet of glass complementarily to an upper surface of the beds, each of the beds having a plurality of hot air ejecting holes for ejecting hot air to keep the sheet of glass out of contact with the beds, the beds including a final bed disposed near the outlet opening and inclined upwardly toward the outlet opening, the final bed having an upper panel including at least a portion curved in the first direction near the outlet opening to curve the sheet of glass in the first direction.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: June 22, 2004
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Takashi Hirotsu, Kazuyoshi Ohtani, Teruji Nagaoka
  • Publication number: 20040097668
    Abstract: A process for polymerizing ethylene comprising contacting under polymerization condition ethylene and optionally one or more olefins with a catalyst system obtainable by contacting: a bis amido compound of formula (I) wherein Y is Si, Ge and Sn; X is hydrogen, halogen or an hydrocarbon radical; R1, R2, R3, R4, R5 and R6, are hydrocarbon radical; Q is a neutral Lewis base; and m is 0-2; one or more boron activating cocatalysts and one or more aluminum alkyls or alumoxanes.
    Type: Application
    Filed: March 24, 2003
    Publication date: May 20, 2004
    Applicants: SANTAN PHARMACEUTICAL CO., LTD., ASAHI GLASS COMPANY., LTD.
    Inventors: Tiziano Dall'Occo, Andrew D. Horton, Bart J. Ruisch, Klaas L. Hebel, Arie van Zon, Henri H. Deuling, Eric J. M. de Boer
  • Patent number: 6734132
    Abstract: An electrode for a polymer electrolyte fuel cell, which is a porous gas diffusion electrode comprising a catalyst powder and an ion exchange resin, wherein a solvent-soluble fluorine-containing polymer having substantially no ion exchange groups exists at least at a part of the inner surface of pores of the electrode.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: May 11, 2004
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Masaru Yoshitake, Naoki Yoshida, Toyoaki Ishizaki, Shinji Terazono
  • Patent number: 6728095
    Abstract: An electric double layer capacitor including a positive electrode assembly and a negative electrode assembly, each electrode assembly having a porous layer including a carbonaceous powder and a fluorine-containing polymer formed on at least one side of an aluminum foil current collector, the positive electrode and the negative electrode being disposed so that the porous layer of the positive electrode assembly and the porous layer of the negative electrode assembly face each other with a separator interposed therebetween to form an element, the element being impregnated with a non-aqueous electrolyte and accommodated in a sealed container, wherein the thickness of the porous layer is from 80 to 200 &mgr;m, the thickness of the aluminum foil current collector is from 20 to 80 &mgr;m, the thickness of the separator is from 30 to 170 &mgr;m, and the density of the porous layer is from 0.50 to 0.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: April 27, 2004
    Assignee: Asahi Glass Company Ltd.
    Inventors: Manabu Suhara, Kazuya Hiratsuka, Katsuji Ikeda, Takeshi Kawasato, Yoshiaki Higuchi, Takamichi Ishikawa, Satoru Kuroki, Sadao Kanetoku, Naoki Yoshida, Naruaki Tomita
  • Patent number: 6718612
    Abstract: A method for manufacturing a glass substrate for use in magnetic disk manufacturing comprises the steps of a) forming a glass sheet; b) forming a protective sheet over one or both sides of the glass sheet; c) cutting the glass sheet into workpieces; d) cutting the workpieces into disk-shaped substrates; e) subjecting the edges of the substrates to an edge polishing process; and f) removing the protective layer. Of importance, by leaving the protective layer over the substrate, the substrate surface is protected from damage.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: April 13, 2004
    Assignee: Asahi Glass Company, Ltd.
    Inventor: Christopher H. Bajorek
  • Patent number: 6664503
    Abstract: A method for manufacturing a magnetic disk comprises the step of applying a continuous laser beam to both sides of a glass workpiece and etching both sides of the workpiece with an aqueous acidic fluoride-containing etching solution. The portion of the workpiece receiving the laser beam etches at a much faster rate than the portions of the workpiece that were not exposed to the laser beam. The workpiece is then broken along a line or curve formed by the above-mentioned steps. The resulting structure is a substrate used to form a magnetic disk. The disk is completed by depositing an underlayer, a magnetic layer and a protective overcoat on the substrate.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: December 16, 2003
    Assignee: Asahi Glass Company, Ltd.
    Inventors: John Hsieh, Andrew Homola, David Vigdor Salamon, Holland Hodges, Christopher H. Bajorek
  • Patent number: 6651381
    Abstract: A synthetic resin molded material characterized in that a thin film made of an oxide of at least one metal selected from the group consisting of Si, Zr, Ti, Ta, Hf, Mo, W, Nb, Sn, In, Al and Zn, is formed by a dry method on a synthetic resin substrate having hydrophobicity, and a method for its production.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: November 25, 2003
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kazuo Harada, Atsushi Hayashi, Tatsuo Momii, Teruo Takakura, Seitoku Kaya
  • Patent number: 6653376
    Abstract: A water dispersion type water and oil repellent composition which is capable of imparting durable water resistance to clothing for which high water and oil repellency is required and which is capable of imparting high oil repellency to paper. The water dispersion type water and oil repellent composition comprises 1) an aqueous medium, 2) a polymer of a monomer having a polyfluoroalkyl group and one polymerizable unsaturated group and 3) a mono(or poly)ol or an alkylene oxide thereof, as essential components.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: November 25, 2003
    Assignee: Asahi Glass Company Ltd.
    Inventors: Shuichiro Sugimoto, Kyouichi Kaneko, Takashige Maekawa, Minako Shindo
  • Patent number: RE38305
    Abstract: An illumination device for a direct viewing type display element comprising a flat light guide; a light source set such that light is incident on a side portion of said flat light guide; a polarized light separating flat set on a first side of a light emitting side of the flat light guide for transmitting a p polarized light component and reflecting at least a portion of an a polarized light component with respect to a light ray substantially having a predetermined direction of incidence; and a light reflecting sheet disposed on a second side opposite to said light emitting side of the flat light guide in parallel with the light emitting site.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: November 11, 2003
    Assignee: Asahi Glass Company Ltd.
    Inventors: Tomoki Gunjima, Yoshiharu Ooi, Masao Ozeki, Hiroaki Ito, Hiroshi Hasebe, Tetsuro Matsumoto, Yutaka Nakagawa
  • Patent number: RE38450
    Abstract: A glass panel for a cathode ray tube including a substantially rectangular face portion and a skirt portion. Further constituting a side wall of the face portion, a compressive stress layer having a thickness of at least {fraction (1/10)} of the thickness of the face portion, is formed on each of the inner and outer surfaces of a useful screen area of the face portion, so as to satisfy 0.4≦&sgr;di/&sgr;ci≦1.0, where &sgr;ci is the compressive stress on the inner surface at the center of the useful screen area, and &sgr;di is the compressive stress on the inner surface in the vicinity of ends of diagonal axial lines of the useful screen area.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: March 2, 2004
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Naoya Shimizu, Hiroshi Yamasaki