Patents by Inventor Masakazu Nakaya

Masakazu Nakaya 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).

  • Oxygen absorptive resin composition
    Publication number: 20030157283
    Abstract: The oxygen absorptive resin composition of the present invention includes: a thermoplastic resin (a) having carbon-carbon double bonds; a gas barrier resin (b) having an oxygen transmission rate of 500 ml·20 &mgr;m/m2·day·atm or less (20° C. 65% RH); and a transition metal salt (c). This resin composition and molded articles formed using the resin composition effectively absorb and scavenge oxygen when used to package products susceptible to degradation by oxygen, such as foods and drinks.
    Type: Application
    Filed: February 26, 2003
    Publication date: August 21, 2003
    Applicant: KURARAY CO. LTD,
    Inventors: Shinji Tai, Hiroyuki Shimo, Masakazu Nakaya, Hideo Takamatsu, Mizuho Maeda
  • Oxygen absorptive resin composition
    Patent number: 6599598
    Abstract: The oxygen resin composition of the present invention includes: a thermoplastic resin (a) having carbon-carbon double bonds; a gas barrier resin (b) having an oxygen transmission rate of 500 ml·20 &mgr;m/m2·day·atm or less (20° C. 65% RH); and a transmission matel salt (c). This resin composition and molded articles formed using the resin composition effectively absorb and scavenge oxygen when used to package products susceptible to degradation by oxygen, such as foods and drinks.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: July 29, 2003
    Assignee: Kuraray Co., Ltd.
    Inventors: Shinji Tai, Hiroyuki Shimo, Masakazu Nakaya, Hideo Takamatsu, Mizuho Maeda
  • Polyvinyl alcohol resin composition and multilayer packages
    Publication number: 20030022974
    Abstract: The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises 70 to 99.9 wt % of a polyvinyl alcohol resin (A) and 0.1 to 30 wt % of a thermoplastic resin (B) other than the polyvinyl alcohol resin (A), wherein the thermoplastic resin (B) has a carbon-carbon double bond and a functional group including a hetero atom, and an oxygen absorption rate of the resin composition is 0.001 m//m2 day or more.
    Type: Application
    Filed: May 1, 2002
    Publication date: January 30, 2003
    Inventors: Shinji Tai, Hiroyuki Shimo, Masakazu Nakaya, Mizuho Maeda
  • Resin composition and a multilayered container
    Publication number: 20030018114
    Abstract: The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises a gas barrier resin (A), a thermoplastic resin (B) other than the gas barrier resin (A), and a compatibilizer (C), wherein the gas barrier resin (A) has an oxygen transmission rate of 500 ml·20 &mgr;m/m2·days·atm (20° C., 65% RH) or less, the thermoplastic resin (B) has a carbon-carbon double bond, and an oxygen absorption rate of the resin composition is 0.001 m/m2·day or more.
    Type: Application
    Filed: May 1, 2002
    Publication date: January 23, 2003
    Inventors: Shinji Tai, Hiroyuki Shimo, Masakazu Nakaya, Kaoru Ikeda
  • Ethylene-vinyl alcohol copolymer composition and multilayered container using the same
    Publication number: 20020055572
    Abstract: A resin composition comprising 70 to 99.9% by weight of ethylene-vinyl alcohol copolymer (A) and 0.1 to 30% by weight of a thermoplastic resin (B) other than the ethylene-vinyl alcohol copolymer (A) is provided.
    Type: Application
    Filed: August 31, 2001
    Publication date: May 9, 2002
    Applicant: Kuraray Co., Ltd.
    Inventors: Shinji Tai, Hiroyuki Shimo, Masakazu Nakaya