Patents by Inventor Kazuhiko Hirose
Kazuhiko Hirose 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: 5714181Abstract: The present invention is directed to a convenient and economical method for improving the rate of raising newborn piglets from the pregnancy of the sow to the weaning of the piglets. The method reduces the incidence of premature piglets and increases the lacteal yield of breeding sows by feeding the breeding sows a feed containing saccharides mainly composed of oligosaccharides.Type: GrantFiled: July 12, 1995Date of Patent: February 3, 1998Assignee: Meiji Seika Kaisha, Ltd.Inventors: Satoru Kurokawa, Kiyoshi Hashimoto, Yasushi Yoshimi, Kazuhiko Hirose, Takahisa Tokunaga, Toshiaki Kono, Akihiro Kodaira
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Patent number: 5574096Abstract: Disclosed herein is a gas barrier film formed from a mixture containing polyvinyl alcohol and a partially neutralized product of poly(meth)acrylic acid in a weight ratio of 95:5 to 10:90, and having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity. A production process of the gas barrier film, in which a film formed from a mixture containing polyvinyl alcohol and a partially neutralized product of poly(meth)acrylic acid is subjected to a heat treatment under specific conditions, is also disclosed. The gas barrier film of the invention is excellent in water resistance and oxygen gas barrier property, free of any chlorine atom, and scarcely colored.Type: GrantFiled: September 22, 1994Date of Patent: November 12, 1996Assignee: Kureha Kagaku Kogyo K.K.Inventors: Hideaki Tanaka, Hiroyuki Oba, Kazuhiko Hirose
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Patent number: 5560988Abstract: A gas barrier laminate having a laminated structure of at least two layers includes a gas barrier film (A) formed from a mixture containing polyvinyl alcohol and poly(meth)acrylic acid or a partially neutralized product thereof in a weight ratio ranging from 95:5 to 10:90, and having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity, and a layer (B) formed from a thermoplastic resin. The film (A) and layer (B) are laminated contiguously to each other. A process for the production of a gas barrier laminate having a laminated structure of at least two layers comprises a step of forming a gas barrier film (A) having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C.Type: GrantFiled: January 25, 1995Date of Patent: October 1, 1996Assignee: Kureha Kagaku Kogyo K.K.Inventors: Hiroyuki Oba, Hideaki Tanaka, Tomoaki Sato, Tomohisa Hasegawa, Kazuhiko Hirose
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Patent number: 5552479Abstract: Disclosed herein is a gas barrier film formed from a mixture containing polyvinyl alcohol and poly(meth)acrylic acid at a weight ratio of 95:5 to 20:80, and having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).cm/m.sup.2.h.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity. A production process of the gas barrier film, in which a film formed from a mixture containing polyvinyl alcohol and poly(meth)acrylic acid is subjected to a heat treatment under specific conditions, is also disclosed. The gas barrier film of the invention are far excellent in gas barrier property under high-humidity conditions and also superb in water resistance.Type: GrantFiled: January 24, 1994Date of Patent: September 3, 1996Assignee: Kureha Kagaku Kogyo K. K.Inventors: Hideaki Tanaka, Hiroyuki Oba, Kazuhiko Hirose
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Patent number: 5439745Abstract: Disclosed herein are a polyvinyl alcohol product obtained by heat-treating a melt-molded polyvinyl alcohol product composed of a polyvinyl alcohol composition containing 0.01 to 3.0 mmol of a metal compound based on 1 g of polyvinyl alcohol; a polyvinyl alcohol product obtained by stretching a melt-molded polyvinyl alcohol product composed of a polyvinyl alcohol composition containing 0.01 to 3.0 mmol of a metal compound based on 1 g of polyvinyl alcohol; and a multi-layer product comprising at least one inner layer of a melt-molded product composed of a polyvinyl alcohol composition containing 0.01 to 3.0 mmol of a metal compound based on 1 g of polyvinyl alcohol.Type: GrantFiled: March 2, 1994Date of Patent: August 8, 1995Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Hiroyuki Ohba, Kazuhiko Hirose, Hideaki Tanaka, Nobuyuki Hisazumi
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Patent number: 5318812Abstract: Food packaging-use formed articles including at least one layer of a 3 to 90 microns thickness which comprises a composition consisting of polyvinyl alcohol resin having a degree of saponification of 60 to 95 mole % (A) and a compound elected from a group of alkylene glycol polymer, etc. falling within the range of from 3 weight parts of (B) to 100 weight parts of (A) to the saturated solubility of (B) in (A) and having a carbon dioxide/oxygen solubility ratio (SCO.sub.2 /SO.sub.2) of 30 or higher.Type: GrantFiled: September 3, 1993Date of Patent: June 7, 1994Assignee: Kureha Chemical Industry Company, Ltd.Inventors: Kazuhiko Hirose, Nobuyuki Hisazumi, Shinichiro Funabashi, Hiroyuki Ohba, Hideaki Tanaka
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Patent number: 5317052Abstract: Disclosed herein are polyvinyl alcohol products obtained by heat-treating a melt-molded polyvinyl alcohol product composed of a polyvinyl alcohol composition containing 0.01 to 3.0 mmol of a metal compound based on 1 g of polyvinyl alcohol;a polyvinyl alcohol product obtained by stretching a melt-molded polyvinyl alcohol product composed of a polyvinyl alcohol composition containing 0.01 to 3.0 mmol of a metal compound based on 1 g of polyvinyl alcohol; anda multi-layer product comprising at least one inner layer of a melt-molded product composed of a polyvinyl alcohol composition containing 0.01 to 3.0 mmol of a metal compound based on 1 g of polyvinyl alcohol.Type: GrantFiled: November 19, 1991Date of Patent: May 31, 1994Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Hiroyuki Ohba, Kazuhiko Hirose, Hideaki Tanaka, Nobuyuki Hisazumi
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Patent number: 5270372Abstract: Food packaging-use formed articles including at least one layer of a 3 to 90 microns thickness which comprises a composition consisting of (A) polyvinyl alcohol resin having a degree of saponification of 60 to 95 mole % (A) and (B) a hydroxy containing compound falling within the range of from 3 weight parts of (B) to 100 weight parts of (A) to the saturated solubility of (B) in (A) and having a carbon dioxide/oxygen solubility ratio (SCO.sub.2 /SO.sub.2) of 30 or higher.Type: GrantFiled: July 24, 1992Date of Patent: December 14, 1993Assignee: Kureha Chemical Industry Co., Ltd.Inventors: Kazuhiko Hirose, Nobuyuki Hisazumi, Shinichiro Funabashi, Hiroyuki Ohba, Hideaki Tanaka
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Patent number: 5232767Abstract: A biaxially stretched heat-shrinkable laminated film is disclosed which possesses good heat-shrinkability, excellent melt hole resistance and heat-resistant sealing property (the heat resistance of a seal portion), and highly satisfactory cold resistance, retains transparency even after shrinkage, and serves advantageously as a wrap for packaging foodstuffs. The laminated film is provided as an oxygen barrier layer with a layer of a mixture of vinylidene chloride resin and a low melting point polyamide resin having a crystalline melting point of not higher than 210.degree. C. This mixed resin has been cross-linked by applying the electron beam to the laminate in a dosage in the range of 1 to 12 megarads. The laminated film exhibits a heat shrinkage percentage of not less than 15% at 90.degree. C. and excels in gas barrier property.Type: GrantFiled: January 6, 1992Date of Patent: August 3, 1993Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Nobuyuki Hisazumi, Tsutomu Uehara, Hiroyuki Ohba, Kazuhiko Hirose, Yoshihiro Matsukura, Kunio Shibuya
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Patent number: 5084310Abstract: Disclosed herein is a smoked food-package produced by packaging a foodstuff with a smokable packaging material and smoking the packaged foodstuff wherein the smokable packaging material comprises at least one layer of a mixture of 5 to 60% by weight of vinylidene chloride resin and 95 to 40% by weight of polyamide, said smokable packaging material having a practical smokability, high oxygen barrier property and high water vapor barrier property, and a smoking process.Type: GrantFiled: March 27, 1990Date of Patent: January 28, 1992Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Nobuyaki Hisazumi, Tsutomu Uehara, Hiroyuki Ohba, Kazuhiko Hirose
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Patent number: 4992311Abstract: Disclosed herein are a resin composition comprising 5 to 95% by weight of a vinylidene chloride resin and 5 to 95% by weight of a polyamide resin having a low crystalline melting point of not higher than 210.degree. C. and a molded product of said resin composition.The molded product of the present invention shows a molded product excellent in gas-barrier property and impact strength at low temperature, particularly a film, sheet or container.Among the resin compositions of the present invention, since the composition having 60 to 95% by weight of vinylidene chloride resin is particularly rich in gas-barrier property, it is suitable for packaging foods, and since the composition having more than 40% by weight and not more than 95% by weight of polyamide resin is excellent particularly in impact strength at low temperature, it is suitable as the packaging material for use at an extremely low temperature.Type: GrantFiled: April 4, 1989Date of Patent: February 12, 1991Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Nobuyuki Hisazumi, Tsutomu Uehara, Hiroyuki Ohba, Kazuhiko Hirose
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Patent number: 4324144Abstract: This invention relates to a turbine flowmeter comprising an impeller with blades rotatably mounted in a casing and a detection means provided to detect the revolutions of said impeller as a change of electrostatic capacity.Type: GrantFiled: January 3, 1979Date of Patent: April 13, 1982Assignee: Tokico, Ltd.Inventors: Yasuji Miyata, Kazuhiko Hirose