Patents Assigned to Toyo Boseki Kabushiki Kaisha
  • Patent number: 9005766
    Abstract: The invention provides a biaxially-oriented polyester film that comprises a biaxially oriented polyethylene terephthalate film and contains 9000 ppm or less of ethylene terephthalate cyclic trimer, has a molten specific resistance of within 1.0×108?·cm, and at least one surface of the film has a surface resistivity of 13 log ? or less under a relative humidity of 65 %. The invention also provides a wrap-around label for a container produced from the film.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: April 14, 2015
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Hideki Ito, Masakazu Iwasaki
  • Patent number: 8991312
    Abstract: The present invention aims to provide a flexographic printing original plate where, although it is a flexible aqueous developing plate, reproducibility of fine lines is good. A flexographic printing original plate which is a photosensitive printing original plate where at least (A) a supporting member, (B) a photosensitive resin layer, (C) a protective layer for preventing the polymerization inhibition due to oxygen in the photosensitive resin layer and (D) a heat-sensitive mask layer are successively layered, characterized in that, the photosensitive resin layer (B) is a layer which is able to be developed by water, Young's modulus of the protective layer (C) is 4 MPa to 35 MPa, layer thickness of the protective layer (C) is 0.2 ?m to 2.0 ?m and Young's modulus (MPa) and layer thickness (?m) of the protective layer (C) satisfy the following formula 1: 1?(Young's modulus)×(Layer thickness)2?18??(Formula 1).
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: March 31, 2015
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Kazuya Yoshimoto, Tetsuma Kawakami, Yasuyuki Munekuni, Keiichi Motoi, Yukimi Yawata, Toru Wada
  • Patent number: 8993255
    Abstract: The present invention provides: a protein having a fructosyl amino acid oxidase activity which protein is useful for measurement of a glycosylated protein (particularly, glycosylated hemoglobin); a modified protein thereof; and use of the protein or the modified protein. The protein of the present invention is, for example, a fructosyl valyl histidine oxidase derived from Phaeosphaeria nodorum, the fructosyl valyl histidine oxidase having excellent thermal stability and substrate specificity and also having a small Km value to fructosyl valyl histidine. This allows a glycosylated protein measuring reagent to be stored in a long time and measurement accuracy of the glycosylated protein measuring reagent to be improved.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: March 31, 2015
    Assignees: Toyo Boseki Kabushiki Kaisha, Gekkeikan Sake Co., Ltd.
    Inventors: Rie Hirao, Masao Kitabayashi, Yoshiaki Nishiya, Hiroki Ishida, Yoji Hata
  • Patent number: 8993109
    Abstract: Disclosed is a void-containing heat-shrinkable polyester film which is composed of at least two layers, wherein at least one of the layers is a polyester resin layer comprising a cyclic polyolefin resin and containing voids. The film has an apparent specific gravity of less than 1.00 and has specified heat shrinking properties and mechanical properties. Also disclosed is a void-containing heat-shrinkable polyester film as mentioned above, which exhibits specified cuttability along a perforation. Further disclosed is a process for producing a void-containing heat-shrinkable polyester film as mentioned above.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: March 31, 2015
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Shigetomo Yamamoto, Masayuki Haruta, Yukinobu Mukoyama, Masakazu Iwasaki
  • Patent number: 8986575
    Abstract: A conductive paste containing a conductive powder (A), a vinyl chloride-vinyl acetate resin (B), a polyester resin and/or polyurethane resin (C), a blocked isocyanate (D) blocked with an active methylene compound, and an organic solvent (E), wherein the resin (C) has a glass transition temperature of ?50° C. to 20° C., a sum of amounts of the resin (C) is 50 to 400 parts by weight relative to 100 parts by weight of the resin (B), and a sum of amounts of the resin (B), the resin (C) component, and the blocked isocyanate (D) is 10 to 60 parts by weight relative to 100 parts by weight of the conductive powder (A). An electric wiring in which this conductive paste is formed on an insulating substrate.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: March 24, 2015
    Assignees: Toyo Boseki Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Yuichiro Akiba, Tomoko Honda, Fujio Takahashi, Shinji Nakata
  • Patent number: 8979330
    Abstract: An anisotropic light-diffusing film, an anisotropic light-diffusing laminate, and an anisotropic light-reflecting laminate are provided which are excellent in both light transmittance and diffusivity. Also provided are a lighting equipment and a display device which employ any of the film and laminates and are excellent in light-diffusivity and brightness and in economy, etc. The anisotropic light-diffusing film is a film formed by melt-extruding a mixture of at least two thermoplastic resins incompatible with each other. The film has parallel light ray transmittance of 20-85%, haze of 10-80%, glossiness of 10-70%, and ratio of the vertical-direction diffusivity to the horizontal-direction diffusivity of transmitted light of 1.3-6.0. The anisotropic light-reflecting laminate comprises a light reflector and the anisotropic light-diffusing film laminated over at least one surface of the reflector.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: March 17, 2015
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Katsuaki Kuze, Kenji Kawai
  • Patent number: 8916264
    Abstract: The invention provides a polyester film suitable for a back sheet for solar cells, which requires a high reflectance not only in the visible light region but also in the near-infrared region, and also requires a low reflection directivity. The polyester film is a cavity-containing polyester film having an average reflectance of 70-95% in a wavelength range of 400-1200 nm and an average transmittance of 5-30% in a wavelength range of 700-1200 nm.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: December 23, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Naoki Mizuno, Mutsuo Nishi, Jun Inagaki
  • Patent number: 8916225
    Abstract: The present invention provides a method for coating an inner surface of a polyvinyl chloride medical tube containing a plasticizer with an antithrombogenic material composed of a specific (meth)acrylate copolymer. The simple method of the present invention is capable of evenly and efficiently coating an inner surface of a polyvinyl chloride medical tube with a sufficient amount of an antithrombogenic material without causing appearance deterioration or uneven coating due to elution of the plasticizer. The method is performed by passing through a tube a solution that is prepared by dissolving an antithrombogenic material in a solvent composed of water and at least one alcohol that is adjusted to dissolve the copolymer of the antithrombogenic material but does not dissolve the plasticizer, then subsequently passing water through the tube, and finally drying the tube.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: December 23, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Fumihiko Kajii, Hidenori Tanaka, Susumu Kashiwabara
  • Patent number: 8911839
    Abstract: Disclosed is a heat shrinkable polyester multilayer film having excellent transparency, gloss and workability, which can be produced easily. Specifically disclosed is a heat shrinkable polyester film having a haze value of not more than 2%, a glossiness at a measurement angle of 45° of not less than 200% in at least one side of the film, and a dynamic coefficient friction between one side of the film and the other side of the film of not more than 1.5. The heat shrinkable polyester film also has a shrinkage in the main shrinking direction of not less than 50% when immersed in hot water of 95° C. for 10 seconds and a surface resistivity of not more than 13 log ? at a relative humidity of 65%.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: December 16, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Hideki Ito, Masakazu Iwasaki
  • Patent number: 8904930
    Abstract: The present disclosure describes a printing original plate capable of being laser-engraved such that printing deficiency caused by residues is avoided, and such that resolution and printing quality are good. A flexographic printing original plate capable of being laser-engraved which is obtained by subjecting a photosensitive resin composition containing (A) at least one latex having a weight-average degree of gelation of 40% or more, (B) photopolymerizable compound and (C) photopolymerization initiator to irradiation to light followed by cross-linking and curing. The photopolymerizable component (B) contains the photopolymerizable oligomer and the ethylenic unsaturated monomer in 10 to 25% by weight and 5 to 40% by weight, respectively, to the weight of the photosensitive resin composition and the ethylenic unsaturated monomer comprises 75 to 5% by weight of monofunctional monomer and 25 to 95% by weight of trifunctional monomer.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: December 9, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yukimi Yawata, Kazuya Yoshimoto, Toru Wada
  • Patent number: 8883298
    Abstract: The invention provides a polyester film suitable for a back sheet for solar cells, which requires a high reflectance not only in the visible light region but also in the near-infrared region, and also requires a low reflection directivity. The polyester film is a cavity-containing polyester film having an average reflectance of 70-95% in a wavelength range of 400-1200 nm and an average transmittance of 5-30% in a wavelength range of 700-1200 nm.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: November 11, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Naoki Mizuno, Mutsuo Nishi, Jun Inagaki
  • Patent number: 8881915
    Abstract: PURPOSE: To provide a polymeric porous hollow fiber membrane which exhibits excellent fractionation performance and excellent permeability in treatment of a variety of aqueous fluids and also shows sufficient strength when incorporated into a module or used to treat a fluid, and which is excellent in aging stability in these performances and characteristics and is also excellent in membrane performance recoverability by washing, and which is especially suitable for treatment of a polyphenol-containing beverage and is expected to effectively harmonize the flavor of such a beverage.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: November 11, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Hideyuki Yokota, Noriaki Kato, Hirofumi Ogawa, Junsuke Morita
  • Patent number: 8850978
    Abstract: The present invention provides a photosensitive letterpress printing original plate provided with a heat sensitive mask layer having high light blocking effect and durability yet prepared as a thin film. A photosensitive letterpress printing original plate including at least (A) a supporting member, (B) a photosensitive resin layer, and (C) a heat sensitive mask layer that are successively laminated, wherein the heat sensitive mask layer (C) contains carbon black and, as a dispersion binder therefor, a butyral resin as well as polyamide containing polar group selected from the group consisting of polyamide containing a tertiary amine group, polyamide containing a quaternary ammonium salt group, polyamide containing an ether group and polyamide containing a sulfonic group.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: October 7, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yukimi Yawata, Keiichi Motoi, Tetsuma Kawakami, Kazuya Yoshimoto, Toru Wada
  • Patent number: 8840788
    Abstract: The present invention provides a hollow fiber membrane where the membrane strength and pressure resistance to pressurization from the dialysate side is ensured, the retaining rate of water permeability after the repeated pressure load from outside is high, the resistance to the pressure from outside is excellent and the assembling property into module (low leakage rate at the adhered part) is satisfactory at the same time. The present invention also provides a method for manufacturing the same, and a blood purification module.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: September 23, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Makoto Ohno, Isamu Yamamoto, Takahito Sagara, Kimihiro Mabuchi, Tohru Uenishi, Shinya Koyama
  • Patent number: 8794451
    Abstract: An object of the present invention is to provide a hollow-fiber ultrafiltration membrane that can be used in treatment in various aqueous fluids such as water purification, beverage treatment, seawater clarification, and that has excellent fractionation characteristics and permeability, while deterioration of its performance due to passage of time is minimized, and that has excellent recovery of the membrane-separation characteristics by cleaning. The main feature of the hollow-fiber ultrafiltration membrane of the present invention is that the specific surface area of the membrane surface to which raw water is supplied falls within the range from not less than 1.10 to not greater than 1.55. The present invention also provides a process for producing a hollow-fiber ultrafiltration membrane, wherein a heat treatment is conducted under the condition that the membrane having a residual organic solvent content of not greater than 300 mg/g.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: August 5, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Kenta Kochi, Tsuyoshi Hoshiyama, Hideki Sugihara, Akihiro Ariji, Koichi Baba, Hideki Yamada
  • Patent number: 8741328
    Abstract: The present invention provides a nerve regeneration-inducing tube in which collagen having excellent adhesive property, cell growth property and differentiation inducing property to nerve cells is used as a scaffold for the nerve regeneration. The nerve regeneration-inducing tube is characterized in using the collagen which is made the concentration of sodium chloride contained therein not more than 2.0% by weight or, preferably, 0.1 to 1.5% by weight in a dry state. Purification of collagen is carried out by means of an isoelectric precipitation where the pH is 6.0 or higher and is lower than 10.0.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: June 3, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Michiko Suzuki, Fumihiko Kajii, Hidenori Tanaka, Susumu Kashiwabara
  • Patent number: 8736792
    Abstract: To provide a viewing-angle-enhancing film which is set in a liquid crystal display device at a position nearer to an observer than the position of a liquid crystal layer in the device, and which attains, at a high level, the compatibility of being enhanced in viewing angle with a decrease in the darkening of images at the time of observing the screen from the front thereof. A viewing-angle-enhancing film which is set in a liquid crystal display device at a position nearer to an observer than the position of a liquid crystal layer in the device, and simultaneously satisfies the following requirements (1) to (3): (1) the film has a parallel ray transmittance of 5 to 90%; (2) the film has a diffusivity (A) of 1 to 20 degrees in its main diffusion direction; and (3) the film has a diffusivity ratio of 0.25 to 15% in the main diffusion direction.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 27, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Katsuaki Kuze, Kenji Kawai, Kazumoto Imai, Akihumi Yasui, Akira Matsuda, Masao Kochi
  • Publication number: 20140141416
    Abstract: The present invention intends to provide an assay system using split luciferase that has a remarkably high detection sensitivity. In an embodiment, binding of mutually binding first and second proteins is detected by preparing a first fusion protein comprising the first protein fused with a peptide having the amino acid sequence of amino acid SEQ ID NO: 1 and a second fusion protein comprising the second protein fused with a peptide having an amino acid sequence selected from the group consisting of amino acid SEQ ID NOS: 2 to 6, and allowing the first fusion protein to bind with the second fusion protein to form a complex, and detecting luminescence emitted from the complex.
    Type: Application
    Filed: January 31, 2014
    Publication date: May 22, 2014
    Applicants: The University of Tokyo, Toyo Boseki Kabushiki Kaisha, ProbeX Inc.
    Inventors: Takeaki OZAWA, Naomi MISAWA, Kenji MIURA, Tasuku OKAMOTO, Shigeaki NISHII, Kenji MASUDA
  • Patent number: 8728619
    Abstract: The present invention provides a highly functional polyethylene fiber excellent in the cut resistance, has a high dimensional stability at about room temperature at which products are used, has a high shrinkage rate and stress, and excellent in forming processability when processed at a low temperature much less than a melting point of a polyethylene. And the present invention provides a highly functional polyethylene fiber excellent in processability at a low temperature, wherein an intrinsic viscosity [?] is higher than or equal to 0.8 dL/g, and is not higher than 4.9 dL/g, ethylene is substantially contained as a repeating unit, and a thermal stress at 40° C. is lower than or equal to 0.05 cN/dtex, and a thermal stress at 70° C. is higher than or equal to 0.05 cN/dtex, and is not higher than 0.25 cN/dtex. Further the present invention provides strings, ropes, woven/knitted textiles, and gloves thereof.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: May 20, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasunori Fukushima, Shoji Oda, Akira Hamano, Minoru Masuda
  • Patent number: 8728771
    Abstract: The present invention provides a L-succinylacylase consisting of: (a) a protein coded by a gene consisting of a nucleic acid sequence shown in SEQ ID No: 1; (b) a protein consisting of an amino acid sequence shown in SEQ ID No: 2; (c) a protein coded by a polynucleotide which hybridizes under a stringent condition with a nucleic acid sequence which is complementary to the nucleic acid sequence shown in SEQ ID No: 1 and having an L-succinylaminoacylase activity; or (d) a protein which consists of an amino acid sequence where one or several amino acid(s) is/are substituted, deleted, inserted and/or added in the protein consisting of the amino acid sequence shown in SEQ ID No: 2 and has an L-succinylaminoacylase activity. This enzyme is able to produce a sterically bulky unnatural amino acid such as L-tert-leucine etc. which is useful as an intermediate for pharmaceuticals.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: May 20, 2014
    Assignees: Toyo Boseki Kabushiki Kaisha, Sekisui Medical Co., Ltd.
    Inventors: Atsushi Toda, Sachio Iwai, Yoshiaki Nishiya, Shinya Kumagai