Patents Assigned to Asahi Glass Company Ltd.
  • Patent number: 6432517
    Abstract: A recording sheet which comprises a substrate and a porous layer containing alumina or an alumina hydrate formed on the substrate, wherein the substrate is made of fibers for paper and a filler, and the content of the filler in the substrate is from 10 to 60 wt % to the total weight of the substrate.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: August 13, 2002
    Assignees: Asahi Glass Company Ltd., Tokushu Paper Mfg. Co.
    Inventors: Nobuyuki Yokota, Shunji Hayashi, Masaki Kageyama, Natsuko Tomioka
  • Patent number: 6413347
    Abstract: A frame-attached transparent plate is produced by injection-molding a frame in a mold for injection molding, opening the mold, and projecting the frame in an arched form corresponding to a curvature of a glass plate to press the frame to only a surface of a peripheral portion of the glass plate so as to bond the frame to the peripheral portion of the glass plate. With this, the shape in cross section of the frame can optionally be selected even when the glass plate has a curved portion, and problems such as a poor dimensional accuracy, a poor bonding strength, a poor appearance and so on of the frame can be eliminated.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: July 2, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yoshio Hosaka, Nobuyuki Tanaka, Hideyuki Hashimoto, Takanobu Kondou
  • Publication number: 20020080557
    Abstract: An electric double layer capacitor comprising a positive electrode assembly and a negative electrode assembly, each electrode assembly having a porous layer comprising 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 0.80 g/cm3.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 27, 2002
    Applicant: 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: 6411496
    Abstract: An electric double layer capacitor having an element impregnated with a non-aqueous electrolyte, said element comprising positive and negative electrodes made of carbonaceous electrodes, and a separator interposed between the electrodes, wherein said separator is made of at least two paper layers laminated to form one sheet, each of the paper layers has a thickness of from 20 to 60 &mgr;m, and at least one of the paper layers is a cellulose paper layer having a density of from 0.37 to 0.60 g/cm3.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: June 25, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Manabu Suhara, Kazuya Hiratsuka, Takeshi Kawasato
  • Patent number: 6405564
    Abstract: A vacuum degassing apparatus for molten glass according to the present invention comprises a vacuum housing where a vacuum is created; a vacuum degassing vessel housed in the vacuum housing to degas the molten glass; an introduction device communicated to the vacuum degassing vessel so as to introduce untreated molten glass into the vacuum degassing vessel, or preferably an uprising pipe; and a discharge device to discharge treated molten glass from the vacuum degassing vessel, or preferably a downfalling pipe. In the apparatus, at least a portion of at least one of the vacuum degassing vessel, the uprising pipe and the downfalling pipe that directly contact with the molten glass is constituted by refractory material having a porosity of not greater than 5%. The apparatus can increase quantity of flow of the molten glass and consequently a degassing throughput of the molten glass in comparison with prior art, having the same size and the same pressure loss.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: June 18, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yusuke Takei, Masataka Matsuwaki, Toshiyasu Kawaguchi, Takashi Kijima, Atsushi Tanigaki, Katsuharu Imamaki, Michito Sasaki, Toshihiro Ishino
  • Patent number: 6406642
    Abstract: A lubricating oil for freezers, which is made of a polyether represented by the general formula (1): R1 —[X—OR4]5, wherein R1 represents an s-valent group having an aromatic nucleus, X represents a divalent group consisting of —OR2— and —OR3— groups (the numbers of which are q and r, respectively, on average), R2 represents an ethylene group which may have a methyl group or ethyl group, R3 represents an ethylene group having an alkoxymethyl group in which the alkoxyl group has 1 to 4 carbon atoms, and R4 represents an alkyl group having 1 to 10 carbon atoms, s is an integer of 1 to 6, q is 0 to 6, r is at least 0.5, and (q+r)×s is 3 to 80, and which has a high compatibility with HFC refrigerant, a high stability to the hydrolisis and a high volume resistivity.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: June 18, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Genichirou Enna, Hiroki Fukuda, Yoshihiro Ohtsuka
  • Patent number: 6402792
    Abstract: An electric double layer capacitor comprising an electrode containing a carbonaceous material having a specific surface area of at least 500 m2/g, and an organic electrolytic solution capable of forming an electric double layer at the interface with the electrode, wherein the electrode is bonded to a current collector via a carbon type conductive adhesive layer containing a conductive carbon material and a polyimide resin.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: June 11, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kazuya Hiratsuka, Takeshi Morimoto, Manabu Suhara, Takeshi Kawasato, Manabu Tsushima
  • Patent number: 6397634
    Abstract: A plurality of rollers provided at positions where a transferred glass plate is moved vertically to form a transferring plane formed by the primary rollers into a curved plane, and the curved plane is shifted in the transferring direction of the glass plate with the transfer of the glass plate to bend and shape the glass plate to have a predetermined curvature along the curved plane. Thus, there are obtainable a bending and shaping method and apparatus which does not require the exchanging of rollers in response to the type of glass plate being worked.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: June 4, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Takashi Takeda, Yoichi Nemugaki, Ken Nomura, Nozomi Ohtsubo, Masanori Tomioka
  • Patent number: 6395699
    Abstract: A solvent composition comprising (a) dichloropentafluoropropane, (b) trans-1,2-dichloroethylene and (c) methanol, wherein the proportions of (a), (b) and (c) in the total amount of (a), (b) and (c) are from 57 to 75 wt %, from 20 to 35 wt % and from 5 to 8 wt %, respectively.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: May 28, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kenroh Kitamura, Michino Ikehata, Masaaki Tsuzaki
  • Patent number: 6395083
    Abstract: The present invention is the following invention which provides a cement admixture which satisfies fluidity of fresh concrete and high strength of the hardened product of concrete simultaneously.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: May 28, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Genichirou Enna, Hiroki Fukuda, Yoshihiro Ohtsuka
  • Patent number: 6392336
    Abstract: Stress concentration that causes at a central portion of side surfaces of a glass funnel body portion close to a sealed portion is restrained by providing concaves in diagonal portions of the glass funnel body portion, which have the highest rigidity.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: May 21, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Tsunehiko Sugawara, Kentaro Tatsukoshi
  • Patent number: 6387588
    Abstract: There is provided a plate material for printing method based on wettability change. The plate material is comprised of a substrate and a recording layer including at least two polymers having a first polymer and a second polymer surrounding the first polymer. The first polymer has a changeable property of a receding contact angle and is comprised of a copolymer including perfluoroalkyl-containing acrylate or perfluoroalkyl-containing methacrylate. The second polymer has an oil-absorptive character defined as an area ratio determined in the specification and is comprised of a urethane polymer. The printing plate according to the present invention exhibits excellent ink-releasability and no toning during printing operation.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: May 14, 2002
    Assignees: Ricoh Company, Ltd., Asahi Glass Company Ltd.
    Inventors: Yasuo Katano, Nobuyuki Miyazaki, Katsuji Ito
  • Publication number: 20020053520
    Abstract: The present invention has an object to obtain a cooking liquor containing polysulfide-sulfur at a high concentration by minimizing by-production of thiosulfate ions. The present invention is a method for producing polysulfides, which comprises introducing a solution containing sulfide ions into an anode compartment of an electrolytic cell comprising the anode compartment provided with a porous anode, a cathode compartment provided with a cathode, and a diaphragm partitioning the anode compartment and the cathode compartment, for electrolytic oxidation to obtain polysulfide ions, characterized in that the porous anode is disposed so that a space is provided at least partly between the porous anode and the diaphragm, and the apparent volume of the porous anode is from 60% to 99% based on the volume of the anode compartment.
    Type: Application
    Filed: August 27, 2001
    Publication date: May 9, 2002
    Applicant: Asahi Glass Company, LTD.
    Inventors: Tetsuji Shimohira, Tatsuya Andoh, Junji Tanaka, Keigo Watanabe, Yasunori Nanri
  • Publication number: 20020054472
    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 paste extrusion, and rolling the obtained extruded product by rolling rolls to form it into a sheet shape.
    Type: Application
    Filed: November 14, 2001
    Publication date: May 9, 2002
    Applicant: ASAHI GLASS COMPANY LTD.
    Inventors: Takamichi Ishikawa, Satoru Kuroki, Manabu Suhara
  • Publication number: 20020053511
    Abstract: The present invention provides a cation exchange membrane which has excellent durability, a high limiting current density, a low direct current membrane resistance and excellent selectivity to monovalent cations. In the present invention, a cation exchange membrane excellent in selective permeability to monovalent cations is produced by bringing high molecular cations into contact with a surface of a cation exchange membrane in the presence of anions of an oxyacid or anions of an organic sulfonic acid.
    Type: Application
    Filed: September 28, 2001
    Publication date: May 9, 2002
    Applicant: ASAHI GLASS COMPANY, LTD.
    Inventors: Yoshio Sugaya, Motoo Fukui, Yoshiharu Aoki
  • Patent number: 6383641
    Abstract: A transparent coated molded product comprising a transparent synthetic resin substrate and two or more transparent cured material layers provided on at least one part of the surface of the transparent synthetic resin substrate, wherein an inner layer in contact with the outermost layer of the two or more transparent cured material layers is an abrasion-resistant layer which is a cured material of an active energy ray-curable coating agent (A) containing a polyfunctional compounds (a) having at least 2 active energy ray-curable polymerizable functional groups and the outermost layer is a silica layer which is a cured material of a curable coating agent (B) of polysilazane or a curable coating agent (B) containing polysilazane.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: May 7, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Satoshi Kondou, Toshihiko Higuchi, Hirotsugu Yamamoto, Takashi Shibuya, Mika Yokoyama, Junko Asakura
  • Patent number: 6383427
    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 paste extrusion, and rolling the obtained extruded product by rolling rolls to form it into a sheet shape.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: May 7, 2002
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Takamichi Ishikawa, Satoru Kuroki, Manabu Suhara
  • Patent number: 6383046
    Abstract: Manufacturing steps for a cathode ray tube or a glass bulb for the cathode ray tube are controlled in such a manner that a two-dimensional matrix code 3 comprised of a plurality of dots is marked by laser in an outer side surface of a glass bulb 1, 5, the two-dimensional matrix code 3 containing the information which can identify individually glass bulbs, and the manufacturing steps are conducted by using a computer and the particulars specified by the serial information.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: May 7, 2002
    Assignee: Asahi Glass Company, Ltd.
    Inventor: Masayuki Shinoda
  • Patent number: 6376592
    Abstract: A water dispersion type water and oil repellent composition obtained by polymerizing the following polymerizable monomer mixture (b) in the presence of a compound (a) having a blocked isocyanate group and no polymerizable unsaturated group: (b) a mixture comprising a polymerizable monomer having a polyfluoroalkyl group and a polymerizable monomer having no polyfluoroalkyl group.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: April 23, 2002
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Toyomichi Shimada, Takashige Maekawa
  • Patent number: 6370917
    Abstract: A quenching method and apparatus for tempering a glass sheet. The method includes a step of transferring a heated glass sheet between quenching boxes which are provided with nozzles opposingly arranged near upper and lower surfaces of the glass sheet to blow air streams of cooling air supplied from the quenching boxes to the glass sheet. The method also includes the step of arranging the nozzles extending from the quenching boxes so as to face at least one of the upper and lower surfaces of the glass sheet so that openings on the end of the nozzles blow the air streams of the cooling air in different directions simultaneously so as to intersect and thus be substantially uniformly arranged with respect to the glass sheet. The number of intersections is approximately 30 or more in any 10 cm square area of the glass sheet. The end portions of the nozzles have a semi-spherical shape.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: April 16, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yasumasa Kato, Jun Nagata, Shigeyuki Seto, Satoshi Yoshida