Patents Assigned to Toyo Boseki Kabushiki Kaisha
  • Patent number: 7503941
    Abstract: The elastic fabric comprising a cross-linked polyolefin fiber, wherein the fabric has retractions both in warp-wise and weft-wise directions of the fabric of 8% or less after treated by dry heat at 65° C. for 30 minutes is disclosed. Also disclosed is a process for producing an elastic fabric, comprising: retracting a fabric comprising a cross-linked polyolefin fiber while dyeing the fabric, and then stretching or relaxing the fabric at a stretch ratio of 15% or less to finish the fabric with heat-setting. The present invention relates to an elastic fabric having an excellent chemical resistance and an excellent dimensional stability in the form of a product, which is suitably used for sporting fabrics such as swimming suits, leotards and the like, inner fabrics for ladies as well as outer fabrics, for example.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: March 17, 2009
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Akira Hamano, Akira Nishimoto, Seishyu Hayashi, Yasuo Ohta, Rajen M. Patel, Rona L. Reid, Antonio Batistini
  • Publication number: 20090068487
    Abstract: [Problem] Provision of a heat-sealable multilayer polypropylene-based resin film having heat seal strength sufficient for packaging a heavy article and tight-sealing property, and a packaging material using the film. [Solving means] A heat-sealable multilayer polypropylene-based resin film comprising a crystalline polypropylene-based resin and a propylene-?-olefin copolymer, which is an oriented polypropylene-based resin film made of a laminate of 3 or more layers of a substrate layer having a melting point of 155° C. or less, an intermediate layer and a thermal adhesion layer having a melting point of 150° C. or less, wherein the intermediate layer has a xylene-soluble content of 2.5% or less, the substrate layer has a melting point higher than that of the intermediate layer, and the intermediate layer has a thickness of 4 ?m or above.
    Type: Application
    Filed: April 19, 2006
    Publication date: March 12, 2009
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Kenji kawai, Hirokazu Oogi
  • Patent number: 7501373
    Abstract: Embodiments of the present invention are directed to a polymerization catalyst used to produce polyester. The catalyst comprises at least one metal-containing component, excluding antimony or germanium, and an organic compound component, containing at least one moiety of Ar—O— or Ar—N<, where Ar represents an aryl group.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: March 10, 2009
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Takahiro Nakajima, Shoichi Gyobu, Hiroaki Taguchi
  • Publication number: 20090056981
    Abstract: The thin film-laminated polyimide film contains a substrate film and a thin film layer formed at least on one surface of the substrate film. The substrate film is made of a polyimide film showing a degree of curl after a heat treatment at 300° C. of not more than 10%. Use of this thin film-laminated polyimide film as a substrate of electronic parts such as solar battery, capacitor and the like exposed to high temperatures prevents easy development of warpage and distortion during production, and can improve quality and yield of electronic parts.
    Type: Application
    Filed: July 1, 2005
    Publication date: March 5, 2009
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Satoshi Maeda, Keizo Kawahara, Masayuki Tsutsumi, Takefumi Yoshida
  • Publication number: 20090056849
    Abstract: The present invention relates to a polyester cord for reinforcement of rubber where heat-resistant adhesive property when exposed to high temperature for long time in a state of being embedded in a rubber composition or under a high-temperature atmosphere is significantly improved, stiffness of the cord is made soft to such a level which is no problem in terms of practical use in view of anti-fatigue property and also of molding and processing property of the rubber-reinforced product and a high elastic modulus is available; and a method for manufacturing the same.
    Type: Application
    Filed: March 1, 2006
    Publication date: March 5, 2009
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Katsutoshi Imaoka, Masanao Kohashi
  • Publication number: 20090050555
    Abstract: To provide a method for manufacturing a module having a selectively permeable membrane wherein the surface of the selectively permeable membrane thereof can be washed with good efficiency and further contaminants having been exfoliated from the surface of the membrane by a washing operation can be discharged from the inside of a housing with good efficiency; and the above module having a selectively permeable membrane. A method for manufacturing a module having a selectively permeable membrane, characterized in that in the manufacture of a module wherein a selectively permeable membrane is held in a housing and both ends of the above selectively permeable membrane are fixed, the both ends of the above selectively permeable membrane are fixed to an upper holder and an under holder connected by at least one washing tube, and then, the membrane is held in the housing; and a module having a selectively permeable membrane manufactured by the above manufacturing method.
    Type: Application
    Filed: January 30, 2006
    Publication date: February 26, 2009
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Koichi Baba, Toshiyuki Yagi
  • Patent number: 7494794
    Abstract: The present invention provides glucose dehydrogenase which is excellent in heat resistance and substrate specificity and is not affected by dissolved oxygen. Specifically, the present invention relates to glucose dehydrogenase characterized by being derived from an eukaryotic organism and keeping 90% or more activity after being treated with heat at 55° C. for 15 minutes in a liquid form compared with the activity before being treated.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: February 24, 2009
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Hiroshi Aiba, Hiroshi Kawaminami, Takahide Kishimoto, Yoshiaki Nishiya
  • Publication number: 20090032992
    Abstract: An apparatus and method suitable for producing a polymer film, particularly a polyimide film, perform drying and heat treatment using a tenter type feeding apparatus that suppresses the problems of deformation of film in the vicinity of pore into which the pins bite and breakage of the pores to form long pores in the width direction. The apparatus includes a device to suppress deformation of the film in the vicinity of the tenter pins at the time point when the both ends of the film is pierced with the pins and cools the pin temperature to less than 180° C. at the time when the film is pierced with the pins. Individual pins can be arranged on the innermost side of the pin sheets so that they are all disposed at the same distance both in the film feeding direction in the individual pin sheets and between other pin sheets.
    Type: Application
    Filed: April 26, 2006
    Publication date: February 5, 2009
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Shinji Fujita, Shoichi Uemura, Masaharu Hiki, Youichiro Nakagawa, Kiyoshi Taniguchi, Keizo Kawahara, Satoshi Maeda
  • Publication number: 20090032602
    Abstract: [Summary] [Problem] Provision of a thermoadhesive polyester film having improved thermal adhesiveness and ruggedness absorbability and sliding quality while maintaining environmental suitability (halogen-free), heat resistance, and chemical resistance as a plastic material that constitutes IC cards or IC tags. [Solving Means] A thermoadhesive polyester film wherein a thermoadhesive layer is laminated on one face or both faces of a biaxially stretched polyester film, the thermoadhesive layer having a thickness of 5 to 30 ?m, consisting of a mixture of a non-crystalline polyester resin A having a glass transition temperature of 50 to 95° C. and a thermoplastic resin B incompatible therewith, the thermoplastic resin B being any of (a) a crystalline resin having a melting point of 50 to 180° C., (b) a non-crystalline resin having a glass transition temperature of ?50 to 150° C., and (c) a mixture thereof, and contained at 1 to 30% by mass in the thermoadhesive layer.
    Type: Application
    Filed: April 28, 2006
    Publication date: February 5, 2009
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Mutsuo Nishi, Yasushi Sasaki
  • Publication number: 20090029853
    Abstract: [Problems] To provide an adsorbent that is low in the drop of lower aliphatic aldehyde adsorbing capacity over time during storage thereof, and provide a process for producing the same. [Means for Solving Problems] There is provided an adsorbent characterized by being composed of an active carbon of 200 ?eq/g or less total surface acidic group content impregnated with aminobenzenesulfonic acid. Further, there is provided a process for producing the adsorbent.
    Type: Application
    Filed: July 3, 2006
    Publication date: January 29, 2009
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventor: Toshiaki Hayashi
  • Publication number: 20090022990
    Abstract: [Object]To prepare a polyester fiber and fiber cord having an excellent heat resistance which does not generate thermal melting at high temperature while properties such as dimensional stability, high strength and durability are maintained. To provide a material which is useful as a belt for tire and a carcass material. [Means to Solve]A polyester fiber and fiber cord comprising a copolymerized polyester is impregnated with a compound having at least two unsaturated bonds, and is irradiated with electronic ray or ?-ray, whereby the compound causes a cross-linking reaction in the inner area and surface layer of the polyester fiber and fiber cord, which results in a fiber and fiber cord having an excellent heat resistance.
    Type: Application
    Filed: April 26, 2006
    Publication date: January 22, 2009
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Shigenori Nagahara, Kenji Yoshino, Satoshi Imahashi, Noriko Takahashi
  • Patent number: 7479315
    Abstract: A material for fuel-system parts which is excellent in impact strength, rigidity, elongation, unsusceptibility to swelling with liquid fuels including gasoline, and gasoline-barrier properties and has satisfactory moldability. The material for fuel-system parts comprises a resin composition comprising 100 parts by weight of a given polyamide resin (A) and 11 to 100 parts by weight of a resin (B) having a lower glass transition temperature than the polyamide resin (A) and having a functional group reactive with the polyamide resin (A), and has a structure in which the polyamide resin (A) serves as a matrix ingredient and the resin (B) serves as a domain ingredient.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: January 20, 2009
    Assignees: Toyo Boseki Kabushiki Kaisha, Toyoda Gosei Co., Ltd
    Inventors: Tsutomu Tamura, Tomohide Nakagawa, Shoji Kouketsu, Gaku Maruyama, Daisuke Tsutsumi, Junji Koizumi, Katsushi Ito, Haruyasu Mizutani
  • Patent number: 7479383
    Abstract: PQQGDH having an improved substrate specificity or having an improved specific activity in an assay system using ferricyanide ion as a mediator is provided. Modified PQQGDH having the enhanced substrate specificity by introducing an amino acid mutation in a particular region of PQQGDH, and a method of enhancing the specific activity compared with a wild type in the assay system using the ferricyanide ion as the mediator by deleting, substituting, or adding one or more amino acids in an amino acid sequence of the wild type pyrroloquinoline quinone dependent glucose dehydrogenase.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: January 20, 2009
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Seiji Takeshima, Tadanobu Matsumura, Takahide Kishimoto, Masanori Oka, Noriaki Hirayama
  • Patent number: 7476525
    Abstract: The present invention relates to modified pyrroloquinoline quinone dependent glucose dehydrogenase (PQQGDH) having lower activity with respect to disaccharides and/or greater stability than wild-type PQQGDH.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: January 13, 2009
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Seiji Takeshima, Atsushi Sogabe, Masanori Oka
  • Patent number: 7468197
    Abstract: Disclosed are a flexible metal-clad laminate comprising a metal foil and a heat-resistant resin film layer formed on one side of the metal foil, the heat-resistant resin film layer comprising a crosslinked condensation polymer and having an N-methyl-2-pyrrolidone-insolule content of at least 1%, and a method for producing the flexible metal-clad laminate comprising the steps of applying a heat-resistant resin solution to a metal foil; predrying the metal foil until the heat-resistant resin layer has an residual solvent content of 10 to 40% by weight; and carrying out solvent removal and heat-treatment while controlling the crosslinking reaction of the resin.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: December 23, 2008
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Tomoharu Kurita, Chyuji Inukai
  • Publication number: 20080300349
    Abstract: To easily obtain a polyester having excellent mechanical properties, a satisfactory hue, and a high degree of flame retardancy. [MEANS FOR SOLVING PROBLEMS] The flame-retardant polyester is a polyester comprising ethylene terephthalate units as the main structural units and a phosphorus compound copolymerized or incorporated therein or is a resin composition comprising polyesters including that polyester. The flame-retardant polyester is characterized in that a polycarboxylic acid and/or polyol having three or more functional groups capable of forming an ester bond is contained in the polyester in a total amount of 0.05-2.
    Type: Application
    Filed: November 22, 2005
    Publication date: December 4, 2008
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Masaki Fuchikami, Shoji Koketsu, Tetsumori Atsuchi, Maki Sato
  • Patent number: 7452938
    Abstract: There is provided an aqueous resin composition excellent in settability, flexibility, retort resistance, hygienicity, sprayability and dispersibility in water, and used to coat an internal surface of a can.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: November 18, 2008
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Osamu Morimoto, Hideki Tanaka, Kayoko Takino, Katsuya Shimeno, Yasunari Hotta
  • Patent number: 7446242
    Abstract: The invention relates to plants and their progeny with improved morphogenesis in a variety of organs; to a method for producing the plants; and to a method for producing calli.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: November 4, 2008
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yoshihisa Kasukabe, Izumi Ihara, Shoji Tachibana, Keisuke Matsui, Masako Mizutani
  • Publication number: 20080269455
    Abstract: PROBLEMS The present invention relates to a process for producing a polybenzoxazole polymer and provides a process for producing the polybenzoxazole polymer within a short reaction time. MEANS FOR SOLVING PROBLEMS A process for producing a polybenzazole polymer comprises producing the polybenzazole polymer in a non-oxidizing dehydrating solvent while employing a compound represented by the following general formula (1) as a raw material including a first polymerization step in which polymerization is performed at a temperature of 150° C. or less and a latter polymerization step in which polymerization is performed at a temperature of 200° C.
    Type: Application
    Filed: September 11, 2006
    Publication date: October 30, 2008
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Naoki Watanabe, Go Mastuoka, Fuyuhiko Kubota, Yukihiro Abe, Yasuko Mitooka
  • Patent number: 7442302
    Abstract: The present invention provides a highly water permeable hollow fiber membrane type blood purifier for medical use, which is excellent in safety and module-assembling ease and which has a high water permeability suitable for use in therapy of chronic renal failure. The present invention relates to a highly water-permeable hollow fiber type blood purifier comprising hydrophobic polymer hollow fiber membranes each of which contains a hydrophilic polymer, characterized in that the amount of the hydrophilic polymer eluted from the hollow fiber membrane is 10 ppm or less; in that the ratio of the hydrophilic polymer in the outer surface of the hollow fiber membrane is 25 to 50 mass %; in that the burst pressure of the hollow fiber membrane is 0.5 MPa or higher; and in that the coefficient of water permeability of the blood purifier is 150 ml/m2/hr./mmHg or higher.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: October 28, 2008
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Kimihiro Mabuchi, Noriyuki Tamamura, Hidehiko Sakurai, Noriko Monden, Shinya Koyama, Hiroshi Shibano, Katsuaki Kuze, Katsuhiko Nose