Patents by Inventor Jinichi Yazaki

Jinichi Yazaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7173150
    Abstract: This invention provides a process a process for recovering terephthalic acid from pulverized products of spent polyethylene terephthalate.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: February 6, 2007
    Assignee: Tsukishima Kikai Co., Ltd.
    Inventors: Jinichi Yazaki, Kozaburo Sakano, Nobuyuki Funakoshi, Kazuho Tanaka
  • Publication number: 20030225299
    Abstract: This invention provides a process a process for recovering terephthalic acid from pulverized products of spent polyethylene terephthalate.
    Type: Application
    Filed: April 24, 2003
    Publication date: December 4, 2003
    Applicant: Tsukishima Kikai Co., Ltd.
    Inventors: Jinichi Yazaki, Kozaburo Sakano, Nobuyuki Funakoshi, Kazuho Tanaka
  • Patent number: 6580005
    Abstract: This invention provides a process a process for recovering terephthalic acid from pulverized products of spent polyethylene terephthalate.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: June 17, 2003
    Assignee: Tsukishima Kikai Co., Ltd.
    Inventors: Jinichi Yazaki, Kozaburo Sakano, Nobuyuki Funakoshi, Kazuho Tanaka
  • Patent number: 4877662
    Abstract: A stabilizer selected from alkaline earth metal hydroxides, oxides and silicates and alkaline earth metal salts of higher fatty acids and an antioxidant are incorporated into a resin composition comprising an ethylene/vinyl alcohol copolymer and a propylene resin or a carbonyl group-containing thermoplastic resin. The stability of the resin composition is improved, and deterioration of the resin composition such as gelation, discoloration or reduction of the gas barrier property is prevented when this composition is heat-molded into a vessel.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: October 31, 1989
    Assignee: Toyo Seikan Kaisha, LTD.
    Inventors: Jinichi Yazaki, Akihiko Tamura
  • Patent number: 4826735
    Abstract: A polypropylene resin composition is provided by incorporating a metal salt of a fatty acid and the oxide or hydroxide of an alkaline earth metal, each, in an amount of 0.05-1 part by weight based on 100 parts by weight of polypropylene. The polypropylene resin composition shows excellent thermal processing stability even when subjected to remelting and extrusion molding after mixing of a scrap recycled from the production of multi-layered containers or sheets each of which is formed of a gas barrier layer made of nylon or an ethylene-vinyl alcohol copolymer and another layer made of a polypropylene resin composition.
    Type: Grant
    Filed: September 10, 1986
    Date of Patent: May 2, 1989
    Assignees: Mitsui Toatsu Chemicals, Incorporated, Toyo Seikan Kaisha Ltd.
    Inventors: Toru Ueki, Jinichi Yazaki, Akihiko Tamura, Hideo Amemiya, Takashi Miyazaki
  • Patent number: 4751120
    Abstract: In a thermoplastic polyester, a compound having at least two ethylenically unsaturated groups and/or oxirane rings in one molecule is coated as a crosslinking agent on the outer surface of the polyester substrate, or a polyester composition containing this crosslinking agent is laminated on the polyester substrate as the inner surface layer, and the crosslinking agent or the crosslinking agent-containing polyester composition is irradiated with ionizing radiant rays or ultraviolet rays. In this processed vessel, the dimension stability and rigidity are highly improved, and deformation under heat and/or pressure can be effectively prevented.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: June 14, 1988
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Jinichi Yazaki, Kozaburo Sakano
  • Patent number: 4687689
    Abstract: In a thermoplastic polyester, a compound having at least two ethylenically unsaturated groups and/or oxirane rings in one molecule is coated as a crosslinking agent on the outer surface of the polyester substrate, or a polyester composition containing this crosslinking agent is laminated on the polyester substrate as the inner surface layer, and the crosslinking agent or the crosslinking agent-containing polyester composition is irradiated with ionizing radiant rays or ultraviolet rays. In this processed vessel, the dimension stability and rigidity are highly improved, and deformation under heat and/or pressure can be effectively prevented.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: August 18, 1987
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Jinichi Yazaki, Kozaburo Sakano
  • Patent number: 4600648
    Abstract: Disclosed is a hot-melt adhesive composed of a composition comprising an acid-modified olefin resin formed by graft modification of an ethylenically unsaturated carboxylic acid or its anhydride or a resin composition containing said modified olefin resin and an oxirane ring-containing compound, wherein said composition has a carbonyl group concentration of 1 to 600 millimoles per 100 g of the composition and an oxirane oxygen concentration of 0.01 to 50 millimoles per 100 g of the composition.
    Type: Grant
    Filed: April 23, 1985
    Date of Patent: July 15, 1986
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Jinichi Yazaki, Kozaburo Sakano, Junichi Matsuo
  • Patent number: 4590131
    Abstract: Disclosed in a packaging material having at least one layer comprising an ethylene-vinyl alcohol copolymer having a vinyl alcohol content of 40 to 80 mole % and a residual vinyl ester content lower than 4 mole %, wherein the ethylene-vinyl alcohol copolymer consists of a composition comprising a plurality of copolymers differing in the vinyl alcohol content, said composition shows a plurality of endothermic peaks in a fusion curve by a differential scanning calorimeter, the composition has fusion characteristics satisfying requirements represented by the following formulae: ##EQU1## wherein Sc represents an area of a triangle defined by a base line connecting the skirt of a high temperature side peak to the skirt of a low temperature side peak in two adjacent peaks in said fusion curve and lines connecting the skirts of both the peaks to the trough between both the peaks, Sa represents an area of the high temperature side peak above said triangle, Sb represents an area of the low temperature side peak above s
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: May 20, 1986
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Jinichi Yazaki, Kazuhiko Tsurumaru
  • Patent number: 4548985
    Abstract: Disclosed is a hot-melt adhesive composed of a composition comprising an acid-modified olefin resin formed by graft modification of an ethylenically unsaturated carboxylic acid or its anhydride or a resin composition containing said modified olefin resin and an oxirane ring-containing compound, wherein said composition has a carbonyl group concentration of 1 to 600 millimoles per 100 g of the composition and an oxirane oxygen concentration of 0.01 to 50 millimoles per 100 g of the composition.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: October 22, 1985
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Jinichi Yazaki, Kozaburo Sakano, Junichi Matsuo
  • Patent number: 4511610
    Abstract: Disclosed is a multi-layer drawn plastic vessel comprising at least one layer composed mainly of at least one crystalline olefin resin selected from crystalline polypropylene and crystalline propylene/ethylene copolymers having an ethylene content of 1 to 20 mole %, at least one oxygen-barrier layer composed mainly of an ethylene/vinyl alcohol copolymer having an ethylene content of 25 to 60 mole %, and an adhesive resin layer interposed between said two resin layers, said adhesive resin layer containing an acid- or acid anhydride-modified, linear, low-density polyethylene or a mixture of said polyethylene with an acid- or acid anhydride-modified propylene resin and said crystalline olefin resin layer being molecularly oriented in at least one direction.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: April 16, 1985
    Assignee: Toyo Seikan Kaisha Ltd.
    Inventors: Jinichi Yazaki, Kozaburo Sakano
  • Patent number: 4451512
    Abstract: Disclosed is a multi-layer plastic vessel comprising a laminate including at least one layer composed mainly of a moisture-resistant thermoplastic resin, at least one layer composed mainly of an ethylene-vinyl alcohol copolymer and a thermoplastic resin adhesive layer interposed between both the resin layers, wherein said adhesive layer is composed of a composition comprising an acid- or acid anhydride-modified olefin resin and an epoxidized unsaturated carboxylic acid ester.
    Type: Grant
    Filed: June 24, 1983
    Date of Patent: May 29, 1984
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Jinichi Yazaki, Kozaburo Sakano, Junichi Matsuo
  • Patent number: 4393106
    Abstract: Disclosed is a laminated plastic container in the form of a bottle, the wall of which comprises a substrate formed of a melt-moldable plastic material, a coating layer formed on at least one surface of the substrate, said coating layer being composed of a copolymer consisting essentially of 99 to 70% by weight of vinylidene chloride and 1 to 30% by weight of at least one acrylic or methacrylic monomer and further including up to 100 parts by weight of at least one member selected from other ethylenically unsaturated monomers per 100 parts by weight of the total amount of said two monomers, said copolymer having an oxygen permeation coefficient of less than 9.times.10.sup.-14 cc.multidot.cm/cm.sup.2 .multidot.sec.multidot.cmHg as measured at a temperature of 20.degree. C. and a relative humidity of 100% and a water vapor permeability coefficient of less than 3.times.10.sup.-3 g.multidot.cm/m.sup.2 .multidot.
    Type: Grant
    Filed: October 28, 1981
    Date of Patent: July 12, 1983
    Assignee: Toyo Seikan Kaisha Ltd.
    Inventors: Yoshitsugu Maruhashi, Isao Tanikawa, Sadao Hirata, Jinichi Yazaki, Kozaburo Sakano
  • Patent number: 4261473
    Abstract: A molded container having a wall composed of a thermoplastic resin oriented in at least one direction on the wall face, wherein the container wall has a layer of a blend composed mainly of a plurality of melt-extrudable thermoplastic resins, each of which has a solubility parameter (Sp) of at least 9.5, at least one of said thermoplastic resins has an oxygen permeability lower than 5.times.10.sup.-11 cc.multidot.cm/cm.sup.2 .multidot.sec.multidot.cmHg, said thermoplastic resins are chosen so that the difference (.DELTA.Sp) of the solubility parameter in said thermoplastic resins is not greater than 4.5, the elongation of said resin blend is higher than the arithmetic mean (.epsilon.) of elongations of the respective thermoplastic resins, and wherein the container has a thermal shrinkability (.delta.) of at least 5% in the orientation direction of said container wall.
    Type: Grant
    Filed: December 14, 1976
    Date of Patent: April 14, 1981
    Assignee: Toyo Seikan Kaisha Limited
    Inventors: Muneki Yamada, Sadao Hirata, Shunsaku Hirata, Akira Kishimoto, Fumio Kano, Jinichi Yazaki, Toru Suzuki
  • Patent number: 4261482
    Abstract: Disclosed is a squeeze vessel having a good combination of deformability, memory property and interlaminar peel resistance, suitable for squeezing out the content, and being excellent in content preserving property, flavor retaining property and appearance characteristics. This squeeze vessel comprises a laminate structure including at least one layer composed mainly of at least one member selected from the group consisting of ethylene-vinyl alcohol copolymers and polyamides, at least one layer composed mainly of an olefin resin having an elasticity of 900 to 9000 Kg/cm.sup.
    Type: Grant
    Filed: July 10, 1979
    Date of Patent: April 14, 1981
    Assignees: Toyo Seikan Kaisha Limited, Lion Hamigaki Kabushiki Kaisha
    Inventors: Muneki Yamada, Takesi Sugimoto, Jinichi Yazaki
  • Patent number: 4217161
    Abstract: A transparent multi-layer container comprising a co-extrudate of an oxygen-barrier resin layer and an orienting resin layer which is monoaxially or biaxially oriented is disclosed. An adhesive resin layer is preferably interposed between the oxygen-barrier layer and the orienting resin layer, and this co-extrudate is drawn and molded at a specific temperature determined relatively to the melting points and softening points of the respective resins. This container is excellent in the combination of transparency, rigidity, mechanical strength, gas-barrier property and interlaminar peel strength.
    Type: Grant
    Filed: October 30, 1978
    Date of Patent: August 12, 1980
    Assignee: Toyo Seikan Kaisha Limited
    Inventors: Muneki Yamada, Sadao Hirata, Jinichi Yazaki, Yoshitsugu Maruhashi, Kozaburo Sakano, Akira Kishimoto, Shunsaku Hirata, Toru Suzuki, Fumio Kano
  • Patent number: 4182457
    Abstract: A transparent multi-layer container comprising a co-extrudate of an oxygen-barrier resin layer and an orienting resin layer which is monoaxially or biaxially oriented is disclosed. An adhesive resin layer is preferably interposed between the oxygen-barrier layer and the orienting resin layer, and this co-extrudate is drawn and molded at a specific temperature determined relatively to the melting points and softening points of the respective resins. This container is excellent in the combination of transparency, rigidity, mechanical strength, gas-barrier property and interlaminar peel strength.
    Type: Grant
    Filed: August 3, 1977
    Date of Patent: January 8, 1980
    Assignee: Toyo Seikan Kaisha Limited
    Inventors: Muneki Yamada, Sadao Hirata, Jinichi Yazaki, Yoshitsugu Maruhashi, Kozaburo Sakano, Akira Kishimoto, Shunsaku Hirata, Toru Suzuki, Fumio Kano
  • Patent number: 4079850
    Abstract: In a multi-layer blow molded container having a joint portion at least in the bottom portion thereof, barrier characteristics to gases such as oxygen and water vapor and liquids such as water, solvents, aqueous ammonia and salt water and interlaminar strength characteristics such as interlaminar adhesion strength, peel strength and impact strength in the content-filled state can be highly improved by blow molding a parison of a laminate structure of two or more polymer layers in which the polymer composition is different with respect to the thickness direction of the container wall but substantially identical with respect to the plane direction and each of the polymer layers is continuous with respect to the plane direction, in such a manner that a tapered projection protruding outwardly in the thickness direction of the container wall is formed in the joint portion so that each of the polymer layers is substantially continuous in this joint portion.
    Type: Grant
    Filed: February 21, 1975
    Date of Patent: March 21, 1978
    Assignee: Toyo Seikan Kaisha Limited
    Inventors: Toru Suzuki, Shunsaku Hirata, Jinichi Yazaki, Shinichi Miyazaki, Shigezo Nohara