Patents Assigned to Gunze Limited
  • Patent number: 8286268
    Abstract: A freely cuttable garment is provided. The freely cuttable garment is capable of being cut by a consumer into any design shape for use. The garment is formed of a fray-preventing knitted fabric woven with heat-welding elastic yarn. Sizes of opening parts of the neck, side, and bottom of the garment are smaller than those of a standard product; a total length and sleeve length of the garment are larger than those of the standard product; and a body width, cuff, waist, and lower bottom edge of the garment are equal to those of the standard product. The garment can be cut into any design shape and can be used with the opening parts left cut-off.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: October 16, 2012
    Assignee: Gunze Limited
    Inventors: Mizue Yamashita, Naoko Fujimoto, Hitomi Arimura, Akira Nakai, Tsutomu Suzuoki, Shinobu Tabata, Masayuki Tani, Taisuke Yamamoto
  • Patent number: 8187683
    Abstract: An object of the present invention is to provide a multilayered polyamide-based tube for food packaging that is free from blocking in a Layer (C), and that has an excellent adherence to processed meat or like packaged food. The present invention provides a multilayered polyamide-based tube for food packaging comprising a Layer (A), a Layer (B) and a Layer (C); the multilayered polyamide-based tube having a low-temperature shrinkage ratio of 2 to 10%, and exhibiting heat shrinkage properties and gas barrier properties; the Layer (A) containing a polyamide-based resin; the Layer (B) containing a polyolefin-based resin; and the Layer (C) that comes in contact with the packaged food, the Layer (C) being a Layer (C-1) that contains a polypropylene-based resin having a heat distortion temperature (ISO 75B-1 or ISO 75B-2) of not less than 60° C. and a Vicat softening point of not less than 120° C.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: May 29, 2012
    Assignee: Gunze Limited
    Inventors: Hiroki Kuriu, Hiroyuki Yabuta
  • Publication number: 20120130064
    Abstract: This invention provides a method for hydrophilic treatment of cellulose fibers that can prevent coloring or decrease in fiber strength. The hydrophilic treatment method comprises a first oxidation step of oxidizing cellulose fibers in a first reaction solution containing an N-oxyl compound and a re-oxidizing agent for the N-oxyl compound; and a second oxidation step of oxidizing oxycellulose fibers obtained in the first oxidation step in a second reaction solution containing an oxidizing agent for oxidizing aldehyde groups.
    Type: Application
    Filed: August 24, 2010
    Publication date: May 24, 2012
    Applicants: GUNZE LIMITED, THE UNIVERSITY OF TOKYO
    Inventors: Akira Isogai, Tsuguyuki Saito, Chiaki Tanaka, Yoshinari Yui
  • Patent number: 8177797
    Abstract: The present invention relates to a tubular suture reinforcement material suitable for use in automatic suturing devices that are widely used in surgical operations, etc. More specifically, the present invention relates to a tubular suture reinforcement material with which a tubular shape is easily obtained to thereby increase its productivity, and removal of thread is easily achieved. The present invention provides a tubular suture reinforcement material for an automatic suturing device formed by stacking two sheet-like materials and sewing together both ends of the two sheet-like materials using two chain stitches (intralooping stitches) each thread end at each sewing end is suitably extended, and the thread end is passed through an anterior loop continuous to the thread end, thereby preventing the thread from unraveling.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: May 15, 2012
    Assignee: Gunze Limited
    Inventors: Hiroyuki Shimoji, Hitoshi Ohtani
  • Patent number: 8178021
    Abstract: The invention resides in enabling biodegradable filament of polylactic acid, polyglycolic acid and the like to manufacture biodegradable micro-filament by simple and convenient means without needing special, high-accuracy and high-level apparatus; it is characterized in that highly molecular oriented micro-filament those of 12 ?m or less and generally from 2 ?m to 3 ?m can be obtained by heating biodegradable filament by infrared beam and the heated original filament is drawn to 100 times or more by tension of 10 MPa or less.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: May 15, 2012
    Assignees: University of Yamanashi, Gunze Limited
    Inventor: Akihiro Suzuki
  • Patent number: 8173558
    Abstract: A polyurethane elastomeric filament-containing weft knit fabric is obtained by plating a bare yarn of highly fusible, alkali-resistant polyurethane elastomeric filament having at least 50% retention of tenacity following dry heat treatment under 100% extension at 150° C. for 45 seconds, a melting point of 180° C. or below, and at least 60% retention of tenacity following treatment in a 2 g/L aqueous sodium hydroxide solution under 100% extension at 100° C. for 60 minutes at every loop of a weft knit fabric having a 1×1 rib knit structure or a center yarn-containing reversible knit structure composed of at least one type of non-elastomeric yarn, then heat setting the plated structure so as to thermally fuse the highly fusible, alkali-resistant polyurethane elastomeric filaments to each other or to the non-elastomeric yarns at crossover points therebetween.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: May 8, 2012
    Assignees: Nisshinbo Textile Inc., Gunze, Limited
    Inventors: Kunihiro Fukuoka, Koji Nishio, Seiji Yamahara, Takahiro Yamazaki, Takashi Maruoka, Fumiyuki Yamasaki, Susumu Kibune, Tsutomu Suzuoki, Shigeo Souda, Taisuke Yamamoto, Kouji Kimura, Shinobu Tabata
  • Patent number: 8169601
    Abstract: A primary object of the present invention is to provide a multilayer heat-shrinkable styrene-based film that makes it possible, even when the film is transparent, to confirm that the film is correctly applied on a drink bottle and the like as a label. The present invention provides a heat-shrinkable styrene-based film having at least one layer containing a styrene-based resin containing a copolymer b1 of 98 to 40% by weight vinyl aromatic hydrocarbon and 2 to 60% by weight aliphatic unsaturated carboxylic acid ester, and/or a block copolymer b2 of 70 to 85% by weight vinyl aromatic hydrocarbon and 15 to 30% by weight conjugated diene hydrocarbon, and a fluorescent brightening agent in an amount of 100 to 2,000 weight ppm with respect to the total weight of the styrene-based resin. The present invention also provides a heat-shrinkable film having a three-layer structure containing front and back layers and a core layer, wherein the above-mentioned copolymer b1 and/or copolymer b2 forms the core layer.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: May 1, 2012
    Assignee: Gunze Limited
    Inventors: Masaharu Maruo, Akira Morikawa, Naoki Ohno, Tadayoshi Tanaka
  • Patent number: 8168252
    Abstract: The present invention provides an electromagnetic wave shielding material that has high electromagnetic wave shielding effects, excellent transparency, and excellent see-through property, and a simple and inexpensive production process for the electromagnetic wave shielding material. Specifically, the present invention provides a process for producing an electromagnetic wave shielding material, the process comprising screen-printing in a geometric pattern a conductive paste containing a particulate silver oxide, a tertiary fatty acid silver salt, and a solvent, onto a transparent porous layer surface of a transparent resin substrate having a transparent porous layer containing as a main component at least one member selected from the group consisting of oxide ceramics, non-oxide ceramics, and metals; and performing heat treatment to form a conductive region with a geometric pattern on the transparent porous layer surface; and an electromagnetic wave shielding material produced by the production process.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: May 1, 2012
    Assignees: Gunze Limited, Fujikura Kasei Co., Ltd.
    Inventors: Atsushi Okada, Akio Kiyohara, Hideki Tanaka, Toshiyuki Honda, Masafumi Ito, Junichi Kato, Noboru Toshima, Yasuhisa Nakao
  • Publication number: 20120040117
    Abstract: A multilayer stretched film with barrier property that is free from deterioration of barrier properties attributable to dimensional change caused by moisture absorption, and bending, etc. A multilayer stretched film with barrier property obtained by biaxially stretching a multilayer laminate including at least three layers, namely, a polyester-based resin layer (Layer A), a polyamide-based resin layer (Layer B), and a polyester-based resin layer (Layer A), in this order (wherein the two Layers A may be the same or different) to obtain a biaxially stretched multilayer film; and providing a deposition layer (Layer C) on at least one surface of the biaxially stretched multilayer film; both of the Layers A containing a crystalline polyester; Layer B containing 70 to 99 wt % of aliphatic polyamide and 1 to 30 wt % of aromatic polyamide; and Layer C containing an inorganic substance.
    Type: Application
    Filed: June 15, 2011
    Publication date: February 16, 2012
    Applicants: DAI NIPPON PRINTING CO., LTD., GUNZE LIMITED
    Inventors: Norio UEHARA, Hiroyuki Yoshizaki, Naoyuki Maruichi
  • Publication number: 20120040121
    Abstract: The present invention provides a method for producing a high-quality nonconductive or semi-conductive seamless (jointless) tubular polyimide film in a simple, efficient, and economical manner, and the like. More specifically, the invention relates to an electrically non-conductive or electrically semi-conductive seamless tubular polyimide film comprising polyimide having at least two aromatic tetracarboxylic acid derivatives comprising 15 to 55 mol % of asymmetric aromatic tetracarboxylic acid component and 85 to 45 mol % of symmetric aromatic tetracarboxylic acid component and at least one aromatic diamine component, in which, as required, a specific amount of carbon black is dispersed, and relates to a method for producing the same.
    Type: Application
    Filed: October 25, 2011
    Publication date: February 16, 2012
    Applicants: UBE INDUSTRIES, LTD., GUNZE LIMITED
    Inventors: Naoki Nishiura, Takashi Kuraoka, Naoyuki Maruichi, Tsutomu Yoshida, Junya Kanetake, Toru Murakami
  • Patent number: 8097693
    Abstract: The present invention provides a method for producing a high-quality nonconductive or semi-conductive seamless (jointless) tubular polyimide film in a simple, efficient, and economical manner, and the like. More specifically, the invention relates to an electrically non-conductive or electrically semi-conductive seamless tubular polyimide film comprising polyimide having at least two aromatic tetracarboxylic acid derivatives comprising 15 to 55 mol % of asymmetric aromatic tetracarboxylic acid component and 85 to 45 mol % of symmetric aromatic tetracarboxylic acid component and at least one aromatic diamine component, in which, as required, a specific amount of carbon black is dispersed, and relates to a method for producing the same.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: January 17, 2012
    Assignees: Gunze Limited, UBE Industries, Ltd.
    Inventors: Naoki Nishiura, Takashi Kuraoka, Naoyuki Maruichi, Tsutomu Yoshida, Junya Kanetake, Toru Murakami
  • Patent number: 8097314
    Abstract: The present invention provides a large diameter thin-walled fluororesin tube, which has, even with a large diameter (for example, ø 100 mm or more), excellent wall thickness precision and a low degree of stable orientation; and a process for producing the same. Specifically, the present invention relates to a fluororesin tube having an average thickness of 70 ?m or less and an outer diameter of 100 mm or more, wherein variation in the tube thickness is within ±20% with respect to the average tube thickness and a degree of orientation (F) is within a range of 0.25 to 0.55.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: January 17, 2012
    Assignee: Gunze Limited
    Inventor: Masaki Kurokawa
  • Publication number: 20110315590
    Abstract: [Object] An object of the invention is to provide a multilayer stretched film with barrier property that is free from deterioration of barrier properties attributable to dimensional change caused by moisture absorption, and bending, etc. [Method for Achieving the Object] A multilayer stretched film with barrier property obtained by biaxially stretching a multilayer laminate comprising at least two layers, namely, a polyester-based resin layer (Layer A) and a polyamide-based resin layer (Layer B) to obtain a biaxially stretched multilayer film; and providing a deposition layer (Layer C) on at least one surface of the biaxially stretched multilayer film; Layer A containing a crystalline polyester; Layer B containing 70 to 99 wt % of aliphatic polyamide and 1 to 30 wt % of aromatic polyamide; and Layer C containing an inorganic substance.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 29, 2011
    Applicant: GUNZE LIMITED
    Inventors: Norio Uehara, Hiroyuki Yoshizaki, Naoyuki Maruichi
  • Patent number: 8067702
    Abstract: The production process of an electromagnetic wave shielding material of the present invention comprises screen printing a conductive paste containing conductive particles, binder and solvent in a geometrical pattern on the surface of a transparent porous layer of a transparent resin substrate provided with the transparent porous layer, the porous layer containing as a main component thereof at least one type selected from the group consisting of an oxide ceramic, a non-oxide ceramic and a metal, followed by forming a conductive portion in a geometrical pattern on the surface of the transparent porous layer by heat treatment. An electromagnetic wave shielding material produced according to this production process has high electromagnetic wave shielding effects and superior transparency and visibility.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: November 29, 2011
    Assignees: Gunze Limited, DIC Corporation
    Inventors: Wataru Suenaga, Atsushi Okada, Kohtaro Tanimura
  • Publication number: 20110203037
    Abstract: It is an object of the present invention to provide fibers, a clothing fabric, and underwear which can maintain excellent cool contact feeling, texture, and pleasant feeling and can suppress fiber yellowing and reddening in distribution process or during in use. The present invention provides fibers containing a thermoplastic elastomer, an acidic compound, and a phosphorus antioxidant, wherein the acidic compound is a styrene-maleic anhydride copolymer or an acid anhydride and the acidic compound is contained in an amount of 0.1 parts by weight or more per 100 parts by weight of the thermoplastic elastomer.
    Type: Application
    Filed: September 18, 2009
    Publication date: August 25, 2011
    Applicant: GUNZE LIMITED
    Inventors: Koichi Naka, Soichi Sueto, Koji Kuroda
  • Publication number: 20110200770
    Abstract: An object of the present invention is to provide a multilayer stretched polyamide-based film having excellent bending resistance, thermal dimensional stability and aroma retention, whose lamination strength is measureable when a sealing layer is laminated thereon. Specifically, the invention provides a multilayer stretched polyamide-based film obtained by biaxially stretching a multilayer laminate including three layers consisting of a polyester layer (Layer A), an adhesive layer (Layer B), and a polyamide layer (Layer C), wherein Layer A contains a crystalline polyester, Layer B contains a modified polyester-based elastomer, Layer C contains an aliphatic polyamide, and Layer C has a thickness of 5 ?m or more, and wherein a sealing layer is to be laminated on Layer C by a lamination method, after biaxially stretching the multilayer laminate.
    Type: Application
    Filed: October 21, 2009
    Publication date: August 18, 2011
    Applicants: GUNZE LIMITED, MITSUBISHI CHEMICAL CORPORATION
    Inventors: Norio Uehara, Naoyuki Maruichi, Hiroyuki Yoshizaki, Atsushi Nakagawa
  • Publication number: 20110172757
    Abstract: The present invention aims to provide a material for revascularization which enables the regeneration of a blood vessel at an extremely high efficiency by being transplanted into a defect of the blood vessel. The present invention provides a tubular material for revascularization comprising a foamed body comprising a bioabsorbable material, a reinforcing member comprising a bioabsorbable material for reinforcing the foamed body, and a reinforcing yarn comprising a bioabsorbable material for reinforcing the foamed body, wherein the reinforcing yarn and the reinforcing member are located at the center or outer face of the foamed body, the inner face thereof is the foamed body, the reinforcing yarn is wound around in a spiral-shaped, ring-shaped or X-shaped manner, and the reinforcing yarn comprises a glycolide-?-caprolactone copolymer.
    Type: Application
    Filed: July 28, 2009
    Publication date: July 14, 2011
    Applicant: GUNZE LIMITED
    Inventors: Goki Matsumura, Yoshito Ikada, Yuki Sakamoto, Shojiro Matsuda
  • Publication number: 20110117341
    Abstract: The present invention provides a film that has excellent anti-fogging properties, processability without causing curling, as a film for use in food packaging.
    Type: Application
    Filed: June 3, 2009
    Publication date: May 19, 2011
    Applicant: GUNZE LIMITED
    Inventors: Hiroyuki Yoshizaki, Norio Uehara, Naoyuki Maruichi, Takehiko Toyonaga
  • Publication number: 20110102370
    Abstract: The present invention provides a touch switch having two ITO-free electrode layers that are bonded together, the touch switch having good visibility, and a planar body that forms such a touch switch. The planar body includes a mesh-like electrode formed in a mesh shape by multiple conductor lines L on one side of a substrate, in which the mesh-like electrode is separated into multiple conductive areas disposed at intervals, and non-conductive areas each disposed between each of the conductive areas; each non-conductive area has multiple cutting portions that cut the conductor lines L, and each non-conductive area insulates between the adjacent conductive areas by the cutting portions.
    Type: Application
    Filed: July 27, 2009
    Publication date: May 5, 2011
    Applicant: GUNZE LIMITED
    Inventors: Katsumasa Kono, Hideaki Mizumoto
  • Publication number: 20110038911
    Abstract: It is an object of the invention to provide a prosthetic material for living organs, which can sufficiently withstand the arterial pressure and thereby can prevent leakage of blood or rupture of blood vessels, and which serves as a scaffold for vascular tissue regeneration, and does not necessitate repeated surgeries or the like. The invention is a prosthetic material for living organs, which comprises a laminate including a film layer and a porous layer, said film layer comprising a bioabsorbable material, said porous layer comprising a bioabsorbable material.
    Type: Application
    Filed: July 25, 2008
    Publication date: February 17, 2011
    Applicant: GUNZE LIMITED
    Inventors: Yuki Sakamoto, Shojiro Matsuda, Toshiharu Shinoka, Yuki Ichihara, Yoshito Ikada