Patents by Inventor Miyuki Kamoshita
Miyuki Kamoshita 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).
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Patent number: 8247068Abstract: Disclosed is a coating material for forming a gas barrier. The coating material includes a polyalcohol polymer, a polycarboxylic acid polymer, and a divalent or higher-valent metal compound whose surface is coated with a poorly water-soluble component, or alternatively a monovalent metal compound whose surface is coated with a poorly water-soluble component and a divalent or higher-valent metal compound whose surface is coated with a poorly water-soluble component. By applying this coating material to a plastic substrate layer, a gas-barrier multilayer body having a gas-barrier layer formed thereon is obtained.Type: GrantFiled: August 30, 2007Date of Patent: August 21, 2012Assignees: Unitika Ltd., Toyo Ink Manufacturing Co., Ltd.Inventors: Takayoshi Okuzu, Hideki Kuwata, Mitsuo Yoshida, Junji Okamoto, Kunihiko Ozaki, Miyuki Kamoshita, Reiko Ueno
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Patent number: 8114521Abstract: A gas barrier laminate comprising: a plastic substrate (I); a gas barrier layer (II) formed from a gas barrier layer-forming coating material (C) containing a polyalcohol-based polymer (A) and a polycarboxylic acid-based polymer (B); an overcoat layer (III) formed from an overcoat layer-forming coating material (F) containing at least one of a monovalent metal compound (D) and a bivalent or higher metal compound (E); and a top coat layer (IV) formed from a top coat layer-forming coating material (G); wherein the gas barrier layer (II) is laminated to the plastic substrate (I), either directly or with an anchor coat layer disposed therebetween, the overcoat layer (III) is laminated on top of the gas barrier layer (II), and the top coat layer (IV) is formed on top of the overcoat layer (III).Type: GrantFiled: September 25, 2006Date of Patent: February 14, 2012Assignees: Unitika Ltd., Toyo Ink Mfg. Co., Ltd.Inventors: Hideki Kuwata, Takayoshi Okuzu, Munehiro Miyake, Mitsuo Yoshida, Junji Okamoto, Kunihiko Ozaki, Miyuki Kamoshita, Reiko Ueno
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Publication number: 20100239852Abstract: Disclosed is a coating material for forming a gas barrier. The coating material includes a polyalcohol polymer, a polycarboxylic acid polymer, and a divalent or higher-valent metal compound whose surface is coated with a poorly water-soluble component, or alternatively a monovalent metal compound whose surface is coated with a poorly water-soluble component and a divalent or higher-valent metal compound whose surface is coated with a poorly water-soluble component. By applying this coating material to a plastic substrate layer, a gas-barrier multilayer body having a gas-barrier layer formed thereon is obtained.Type: ApplicationFiled: August 30, 2007Publication date: September 23, 2010Inventors: Takayoshi Okuzu, Hideki Kuwata, Mitsuo Yoshida, Junji Okamoto, Kunihiko Ozaki, Miyuki Kamoshita, Reiko Ueno
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Publication number: 20100151265Abstract: A gas barrier laminate comprising: a plastic substrate (I); a gas barrier layer (II) formed from a gas barrier layer-forming coating material (C) containing a polyalcohol-based polymer (A) and a polycarboxylic acid-based polymer (B); and a resin layer (III) formed from a resin coating material (F) containing either a monovalent metal compound (D), or a monovalent metal compound (D) and a bivalent or higher metal compound (E); wherein the gas barrier layer (II) is laminated to the plastic substrate (I), either directly or with an anchor coat layer disposed therebetween, and the resin layer (III) is laminated on top of the gas barrier layer (II).Type: ApplicationFiled: September 25, 2006Publication date: June 17, 2010Applicants: Unitika Ltd., Toyo Ink Mfg. Co., Ltd.Inventors: Takayoshi Okuzu, Hideki Kuwata, Munehiro Miyake, Mitsuo Yoshida, Junji Okamoto, Kunihiko Ozaki, Miyuki Kamoshita, Reiko Ueno
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Publication number: 20090280333Abstract: A gas barrier laminate comprising: a plastic substrate (I); a gas barrier layer (II) formed from a gas barrier layer-forming coating material (C) containing a polyalcohol-based polymer (A) and a polycarboxylic acid-based polymer (B); an overcoat layer (III) formed from an overcoat layer-forming coating material (F) containing at least one of a monovalent metal compound (D) and a bivalent or higher metal compound (E); and a top coat layer (IV) formed from a top coat layer-forming coating material (G); wherein the gas barrier layer (II) is laminated to the plastic substrate (I), either directly or with an anchor coat layer disposed therebetween, the overcoat layer (III) is laminated on top of the gas barrier layer (II), and the top coat layer (IV) is formed on top of the overcoat layer (III).Type: ApplicationFiled: September 25, 2006Publication date: November 12, 2009Applicants: UNITIKA LTD., TOYO INK MFG. CO., LTD.Inventors: Hideki Kuwata, Takayoshi Okuzu, Munehiro Miyake, Mitsuo Yoshida, Junji Okamoto, Kunihiko Ozaki, Miyuki Kamoshita, Reiko Ueno
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Publication number: 20090053542Abstract: A gas barrier laminate comprising: a plastic substrate (I); a gas barrier layer (II) formed from a gas barrier layer-forming coating material (C) containing a polyalcohol-based polymer (A) and a polycarboxylic acid-based polymer (B); and an overcoat layer (III) formed from an overcoat layer-forming coating material (F) containing at least one of a monovalent metal compound (D) and a bivalent or higher metal compound (E); wherein the gas barrier layer (II) is laminated to the plastic substrate (I), either directly or with an anchor coat layer disposed therebetween, the overcoat layer (III) is laminated on top of the gas barrier layer (II), and when a laminated product is prepared by laminating a laminate adhesive layer (IV) and a heat seal layer (V), in that order, to either the overcoat layer (III) or the plastic substrate (I) of the gas barrier laminate, either directly or with a printing ink layer disposed therebetween, the lamination strength (X) of the laminated product is not less than 1 N/cm, and theType: ApplicationFiled: September 25, 2006Publication date: February 26, 2009Applicants: unitika ltd., Toyo ink Mfg. Co., Ltd.Inventors: Hideki Kuwata, Takayoshi Okuzu, Munehiro Miyake, Mitsuo Yoshida, Junji Okamoto, Kunihiko Ozaki, Miyuki Kamoshita, Reiko Ueno
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Patent number: 7435446Abstract: A method of producing a gas barrier laminate is disclosed that comprises: preparing a laminate comprising a plastic substrate, a gas barrier layer formed from a gas barrier layer-forming coating material comprising a polyvinyl alcohol and an ethylene-maleic acid copolymer, and a polymer layer comprising a metal compound of a bivalent or higher metal, wherein the polymer layer is laminated to at least one surface of the gas barrier layer; and heat treating the obtained laminate in the presence of water. In addition, another method of producing a gas barrier laminate is disclosed that comprises: applying a gas barrier layer-forming coating material comprising a polyvinyl alcohol and an ethylene-maleic acid copolymer, either directly onto a plastic substrate, or onto a plastic substrate with an undercoat layer disposed therebetween, and then conducting a heat treatment; and heat treating the obtained laminate in the presence of water comprising a metal compound of a bivalent or higher metal.Type: GrantFiled: April 9, 2004Date of Patent: October 14, 2008Assignee: Toyo Ink Mfg. Co., Ltd.Inventor: Miyuki Kamoshita
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Publication number: 20060054263Abstract: A method of producing a gas barrier laminate is disclosed that comprises: preparing a laminate comprising a plastic substrate, a gas barrier layer formed from a gas barrier layer-forming coating material comprising a polyvinyl alcohol and an ethylene-maleic acid copolymer, and a polymer layer comprising a metal compound of a bivalent or higher metal, wherein the polymer layer is laminated to at least one surface of the gas barrier layer; and heat treating the obtained laminate in the presence of water. In addition, another method of producing a gas barrier laminate is disclosed that comprises: applying a gas barrier layer-forming coating material comprising a polyvinyl alcohol and an ethylene-maleic acid copolymer, either directly onto a plastic substrate, or onto a plastic substrate with an undercoat layer disposed therebetween, and then conducting a heat treatment; and heat treating the obtained laminate in the presence of water comprising a metal compound of a bivalent or higher metal.Type: ApplicationFiled: April 9, 2004Publication date: March 16, 2006Inventor: Miyuki Kamoshita
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Publication number: 20060009561Abstract: There is disclosed a gas barrier material comprising polyvinyl alcohol (A), an ethylene-maleic acid copolymer (B), and a metal compound (D), wherein a ratio (A)/(B) between the polyvinyl alcohol (A) and the ethylene-maleic acid copolymer (B) falls within a range from (A)/(B)=50/50 to 10/90 (weight ratio), the metal compound (D) comprises at least one compound selected from a group consisting of hydroxides, oxides, halides, carbonates, sulfates, nitrates, sulfites, and acetates of bivalent or higher metals selected from a group consisting of Mg, Ca, Al, Fe, Co, Ni, and Cu, and a quantity of the metal compound (D), expressed as an equivalent value relative to carboxyl groups within the ethylene-maleic acid copolymer (B), is within a range from 0.05 to 30%.Type: ApplicationFiled: September 26, 2003Publication date: January 12, 2006Inventors: Miyuki Kamoshita, Mitsuo Yoshida