Patents Assigned to Gunze Limited
  • 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: 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
  • 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
  • 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
  • Publication number: 20110027511
    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: Application
    Filed: March 26, 2009
    Publication date: February 3, 2011
    Applicant: GUNZE LIMITED
    Inventors: Hiroki Kuriu, Hiroyuki Yabuta
  • Publication number: 20100329751
    Abstract: An object of the present invention is to provide a semiconductive polyimide resin belt that exhibits electrical properties, including the ability to achieve accurate image transfer in a color image-forming unit, and the ability to prevent variations in resistance due to the transfer voltage, enabling high-quality transfer images to be stably produced over an extended period of time; and physical properties, including resistance to deterioration in flatness due to plastic deformation caused by loads applied in the width direction of the belt, excellent durability, and stable operation even after extended use; and more particularly, to provide an intermediate transfer belt made of the semiconductive polyimide resin belt. The semiconductive polyimide resin belt comprises carbon black and a polyimide resin.
    Type: Application
    Filed: November 27, 2008
    Publication date: December 30, 2010
    Applicant: GUNZE LIMITED
    Inventors: Akira Ichino, Naoki Nishiura, Takashi Kuraoka
  • Publication number: 20100326825
    Abstract: Provided is a solid ion conductor which can be used suitably for an electrochemical device or a hydrogen gas sensor. An electrochemical device wherein a pair of electrodes are formed in the state that a solid ion conductor is sandwiched therebetween, the conductor being obtained by subjecting, to curing treatment with ultraviolet rays, a mixture of a photocurable resin and an ionic liquid having one or more cationic moieties selected from imidazolium based ions, pyridinium based ions, aliphatic amine based ions, alicyclic amine based ions and aliphatic phosphonium ions, and having one or more anionic moieties selected from boric acid ions, triflate ions, halogen based ions, and phosphonate ions.
    Type: Application
    Filed: July 16, 2008
    Publication date: December 30, 2010
    Applicant: GUNZE LIMITED
    Inventors: Tomoko Hane, Akio Kiyohara
  • Publication number: 20100321779
    Abstract: The present invention provides a polarizing plate protective film obtained by forming a silane coupling agent layer on one side of a cyclic olefin-based resin film; a polarizing plate wherein the protective film is laminated on one side or both sides of a polarizer through the isocyanate-based silane coupling agent layer; and a resistive touch panel using the polarizing plate.
    Type: Application
    Filed: December 27, 2007
    Publication date: December 23, 2010
    Applicant: GUNZE LIMITED
    Inventors: Tomoko Hane, Yoshinori Ishii
  • Patent number: 7798082
    Abstract: An airbag is manufactured by sewing a base fabric woven with a first polar fiber by means of a sewing thread. The sewing thread is made up of a yarn formed from a second polar fiber such as nylon 66, and the yarn is subjected to a lubrication treatment using a lubricating agent that consists of a polar group-containing compound having an action to improve lubricity of the sewing thread or that contains mainly such a polar group-containing compound.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: September 21, 2010
    Assignees: Toyoda Gosei Co., Ltd., Gunze Limited
    Inventors: Hiroyuki Kobayashi, Yoshinari Takei, Masakazu Asano, Susumu Ishikawa, Katsuji Takahashi
  • Patent number: 7770368
    Abstract: An enveloping device (1), capable of repeatedly performing a process for producing an envelope and inserting a content into the envelope at high speed, comprises: a film feeder (2) for feeding a film (7) wound on a roll and supplied in the form of two overlapping folds that extend in a width direction (W); an envelope making device (3) for repeatedly forming an envelope by cutting and fusing, in a longitudinal direction of the film (7), the two overlapping folds while conveying the film; an envelope conveying conveyor (5) which conveys a plurality of envelopes (8) while arranging these envelopes in a line; and an inserting device (6) for inserting a content (9) into each envelope (8) conveyed by the envelope conveyor (5).
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: August 10, 2010
    Assignee: Gunze Limited
    Inventors: Kenichi Sugimoto, Toshiyuki Ohnishi, Takashi Kakimoto, Satoshi Hanaoka, Yoshinori Masaoka
  • Publication number: 20100156826
    Abstract: In a touch panel, a rectangular resistive film is formed on a substrate and electrodes are provided along the four sides of the resistive film. Each electrode includes a plurality of gaps and a plurality of divided electrodes. The divided electrodes are linearly arranged along the corresponding side of the resistive film, and the electrode, in which the divided electrodes at both ends are connected to terminals, respectively, is formed by arranging the divided electrodes of the same shape and repeating this same shape.
    Type: Application
    Filed: May 22, 2008
    Publication date: June 24, 2010
    Applicant: Gunze Limited
    Inventors: Hisao Itaya, Tsutomu Yamada, Masahiro Hosoe
  • Patent number: 7727367
    Abstract: The present invention provides a biosensor that can be used for easy and quick quantitative analysis of a specific component in a sample with high precision and a method for manufacturing such a biosensor. The present invention also provides a biosensor that can be used for a highly precise quantitative analysis after an extended period of storage, specifically, a biosensor with excellent storage stability, and a method for manufacturing such a biosensor. The present invention relates to a biosensor comprising an electrically insulating substrate (1); an electrode (2) having a working electrode (21) and a counter electrode (22) formed on the substrate; and a reaction part (4) that is adhered to one end of the electrode (2); the reaction part (4) being mainly composed of a hydrophilic polymer comprising an oxidoreductase, an electron acceptor, fine crystalline cellulose powder, and hydrophilic and hydrophobic segments.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: June 1, 2010
    Assignee: Gunze Limited
    Inventors: Masaharu Maruo, Tetsuji Deguchi
  • Patent number: 7718556
    Abstract: A medical film that is excellent in biocompatibility and bioabsorbability and has an excellent strength in suturing and bonding is provided. A reinforcing material 12 made of a biodegradable polymer is placed in a gelatin solution so as to allow the solution to infiltrate in the reinforcing material 12 and then the gelatin is dried. This allows the gelatin that has infiltrated entirely in an internal part of the reinforcing material 12 to gel, thereby forming a gelatin film 11. Thus, a medical film 1 in which the reinforcing material 12 and the gelatin film 11 are integrated is obtained. The gelatin film 11 preferably is a cross-linked gelatin film.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: May 18, 2010
    Assignees: Gunze Limited, JMS Co., Ltd.
    Inventors: Shojiro Matsuda, Hitoshi Ohtani, Yoshimi Tanaka, Hideki Tadokoro