Patents by Inventor Hisanobu Minamizawa

Hisanobu Minamizawa 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: 7700504
    Abstract: Problem to be Solved: To provide an elastic nonwoven fabric with a good elasticity, adequate strength under elongation, good antiblocking property and favorable feeling, suitable for fiber products, at low cost, as well as fiber products using the same. Solution: An elastic nonwoven fabric comprising long elastomeric fiber and nonelastomeric fiber in a weight ratio within a range from 50/50 to 95/5, which has an elongation recovery rate of the elastic nonwoven fabric after 50% elongation equal to or higher than 70%, and a resistance to peel two sheets of the nonwoven fabric apart equal to or lower than the strength of the fabric under 50% elongation; as well as fiber products using the same.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: April 20, 2010
    Assignees: Chisso Corporation, Chisso Polypro Fiber Company Limited
    Inventors: Yoshimi Tsujiyama, Hisanobu Minamizawa, Junji Iwata
  • Patent number: 7687593
    Abstract: Provided are: an addition polymer of fluorosilsesquioxane (a) having one addition polymerizable functional group or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group and an addition polymerizable monomer (b); a coating film including the polymer or the copolymer; and an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group and organopolysiloxane (c) having an addition polymerizable functional group, or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group, the organopolysiloxane (c) having an addition polymerizable functional group, and the addition polymerizable monomer (b).
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: March 30, 2010
    Assignee: Chisso Corporation
    Inventors: Mikio Yamahiro, Koji Ohguma, Hisao Oikawa, Hisanobu Minamizawa, Hiroyuki Sato, Kenichi Watanabe
  • Patent number: 7462573
    Abstract: PROBLEM TO BE SOLVED: To provide an elastic long-fiber non-woven fabric that exhibits excellent elasticity, appropriate stress upon elongation, an excellent anti-blocking property, and an excellent soft feel, and which is suitable for applications to fabric products; and to provide fabric products manufactured from such an elastic long-fiber non-woven fabric. SOLUTION: An elastic long-fiber non-woven fabric comprising composite long fibers comprising at least one of a non-elastomer resin and an elastomer resin, wherein the composite long fibers have a helical structure and an irregular-surface structure; the non-elastomer resin/elastomer resin volume ratio (%) of the composite long fibers falls within a range of 30/70 to 5/95; and the fineness of the composite long fibers is 5 dtex or less; and fabric products manufactured from such an elastic long-fiber non-woven fabric.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: December 9, 2008
    Assignees: Chisso Corporation, Chisso Polypro Fiber Company Limited
    Inventors: Yoshimi Tsujiyama, Hisanobu Minamizawa, Junji Iwata, Kouichi Hatada
  • Publication number: 20080233819
    Abstract: Problem to be Solved: To provide an elastic nonwoven fabric with a good elasticity, adequate strength under elongation, good antiblocking property and favorable feeling, suitable for fiber products, at low cost, as well as fiber products using the same. Solution: An elastic nonwoven fabric comprising long elastomeric fiber and nonelastomeric fiber in a weight ratio within a range from 50/50 to 95/5, which has an elongation recovery rate of the elastic nonwoven fabric after 50% elongation equal to or higher than 70%, and a resistance to peel two sheets of the nonwoven fabric apart equal to or lower than the strength of the fabric under 50% elongation; as well as fiber products using the same.
    Type: Application
    Filed: May 29, 2008
    Publication date: September 25, 2008
    Applicants: CHISSO POLYPRO FIBER COMPANY LIMITED, CHISSO CORPORATION
    Inventors: YOSHIMI TSUJIYAMA, HISANOBU MINAMIZAWA, JUNJI IWATA
  • Patent number: 7405171
    Abstract: PROBLEM TO BE SOLVED: To provide an elastic nonwoven fabric with a good elasticity, adequate strength under elongation, good antiblocking property and favorable feeling, suitable for fiber products, at low cost, as well as fiber products using the same. SOLUTION: An elastic nonwoven fabric comprising long elastomeric fiber and nonelastomeric fiber in a weight ratio within a range from 50/50 to 95/5, which has an elongation recovery rate of the elastic nonwoven fabric after 50% elongation equal to or higher than 70%, and a resistance to peel two sheets of the nonwoven fabric apart equal to or lower than the strength of the fabric under 50% elongation; as well as fiber products using the same.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: July 29, 2008
    Assignees: Chisso Corporation, Chisso Polypro Fiber Company Limited
    Inventors: Yoshimi Tsujiyama, Hisanobu Minamizawa, Junji Iwata
  • Publication number: 20070135602
    Abstract: Provided are: an addition polymer of fluorosilsesquioxane (a) having one addition polymerizable functional group or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group and an addition polymerizable monomer (b); a coating film including the polymer or the copolymer; and an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group and organopolysiloxane (c) having an addition polymerizable functional group, or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group, the organopolysiloxane (c) having an addition polymerizable functional group, and the addition polymerizable monomer (b).
    Type: Application
    Filed: September 28, 2006
    Publication date: June 14, 2007
    Inventors: Mikio Yamahiro, Koji Ohguma, Hisao Oikawa, Hisanobu Minamizawa, Hiroyuki Sato, Kenichi Watanabe
  • Publication number: 20040067710
    Abstract: PROBLEM TO BE SOLVED: To provide an elastic nonwoven fabric with a good elasticity, adequate strength under elongation, good antiblocking property and favorable feeling, suitable for fiber products, at low cost, as well as fiber products using the same.
    Type: Application
    Filed: August 5, 2003
    Publication date: April 8, 2004
    Inventors: Yoshimi Tsujiyama, Hisanobu Minamizawa, Junji Iwata
  • Publication number: 20030162458
    Abstract: PROBLEM TO BE SOLVED: To provide an elastic long-fiber non-woven fabric that exhibits excellent elasticity, appropriate stress upon elongation, an excellent anti-blocking property, and an excellent soft feel, and which is suitable for applications to fabric products; and to provide fabric products manufactured from such an elastic long-fiber non-woven fabric.
    Type: Application
    Filed: February 13, 2003
    Publication date: August 28, 2003
    Applicant: Chisso Corporation
    Inventors: Yoshimi Tsujiyama, Hisanobu Minamizawa, Junji Iwata, Kouichi Hatada
  • Patent number: 6489426
    Abstract: Propylene homopolymers or propylene-olefin copolymers, having at least one olefin selected from ethylene and &agr;-olefins having 4 or more carbon atoms where the propylene content in this copolymer is 98% by weight or more, are provided that are suitable for producing films with excellent antistatic performance, high rigidity and metallizability.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: December 3, 2002
    Assignee: Chisso Corporation
    Inventors: Naoshi Kawamoto, Yasuhiro Shiraishi, Atsuko Sawai, Yuji Ando, Shinji Nakata, Hisanobu Minamizawa, Ichiro Sakabe, Katsuhiko Ohno