Patents by Inventor Masahito Katsuya

Masahito Katsuya 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: 10287727
    Abstract: A fiber that can exhibit both excellent antistatic properties and high water repellency, and a high bulk nonwoven fabric with a good texture that exhibits high water repellency. More specifically, a highly water repellent fiber that is a conjugate fiber having a plurality of thermoplastic resins as the primary component thereof and having a fiber treatment agent comprising at least Component (A) and Component (B) below deposited thereon at 0.1 to 1.0 wt % in relation to the weight of the fiber, with Component (A) accounting for 75 to 97 wt % and Component (B) accounting for 25 to 3 wt % of the fiber treatment agent: Component (A): polysiloxane Component (B): alkane sulfonate metal salt.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: May 14, 2019
    Assignees: ES FiberVisions CO., LTD., ES FiberVisions Hong Kong Limited, ES FiberVisions LP, ES FiberVisions ApS
    Inventor: Masahito Katsuya
  • Publication number: 20140051314
    Abstract: A subject of the invention is to provide a fiber and a fibrous formed body, particularly, a nonwoven fabric all having an exceptional color fastness and high liquid absorption properties and high durable hydrophilic properties. This is attained by a fiber essentially based on at least one kind of thermoplastic resin, wherein a fiber treating agent containing component (A) to (D) described below is attached to the fiber, with specific ratio of each of component (A) to (D), wherein (A) is an alkyl phosphate metal salt in which the number of carbons of an alkyl group is less than 10; (B) is a trialkylglycine derivative; (C) is a hydroxycarboxylic acid; and (D) is an alkyl phosphate metal salt in which the number of carbons of alkyl group is in the range of 10 to 14.
    Type: Application
    Filed: April 27, 2012
    Publication date: February 20, 2014
    Applicants: ES FIBERVISIONS CO., LTD., ES FIBERVISIONS APS, ES FIBERVISIONS LP, ES FIBERVISIONS HONG KONG LIMITED
    Inventors: Masahito Katsuya, Tomoaki Suzuki
  • Publication number: 20110306260
    Abstract: The present invention provides a fiber that can exhibit both excellent antistatic properties and high water repellency, and a high bulk nonwoven fabric with a good texture that exhibits high water repellency. More specifically, the present invention is a highly water repellent fiber that is a conjugate fiber having a plurality of thermoplastic resins as the primary component thereof and having a fiber treatment agent comprising at least Component (A) and Component (B) below deposited thereon at 0.1 to 1.0 wt % in relation to the weight of the fiber, with Component (A) accounting for 75 to 97 wt % and Component (B) accounting for 25 to 3 wt % of the fiber treatment agent: Component (A): polysiloxane Component (B): alkane sulfonate metal salt.
    Type: Application
    Filed: February 26, 2010
    Publication date: December 15, 2011
    Applicants: ES FIBERVISIONS CO., LTD., ES FIBERVISIONS APS, ES FIBERVISIONS LP, ES FIBERVISIONS HONG KONG LIMITED
    Inventor: Masahito Katsuya
  • Publication number: 20100261399
    Abstract: To provide a conjugate fiber that demonstrates low-temperature processability and excellent thermal adhesiveness without shrinking significantly, can be processed with excellent card passability when processed into a nonwoven fabric, and can produce a bulky nonwoven fabric having excellent uniformity. Bulky nonwoven fabric and a formed article having excellent low-temperature processability and excellent feeling are also provided. A conjugate fiber in which a first component that contains at least 75% by weight of an ethylene ?-olefin copolymer having a melting point of 70 to 100° C.
    Type: Application
    Filed: December 15, 2008
    Publication date: October 14, 2010
    Applicants: ES FIBERVISIONS CO., LTD., ES FIBERVISIONS HONG KONG LIMITED, ES FIBERVISIONS LP, ES FIBERVISIONS APS
    Inventors: Masahito Katsuya, Toshikatsu Fujiwara, Hirokazu Terada
  • Patent number: 6436535
    Abstract: A fiber or fabric having durable hydrophilicity and excellent anti-staticity is produced by adhering specific amount of a fiber treating agent comprising the following components (A), (B), (C), (D) and (E) each at the following ratio onto the surface of thermoplastic resin fiber or fabric (A). 20 to 40% by weight polyglycerin fatty acid ester of specific structure, based on the total of (A) to (E); (B). 5 to 20% by weight of polyoxyalkylene modified silicone of specific structure, based on the total of (A) to (E); (C). 10 to 25% by weight of alkyl imidazolium alkyl sulfate of specific structure, based on the total of (A) to (E); (D). 5 to 20% by weight of alkylene oxide adduct of alkanoylamide, based on the total of (A) to (E); (E). 25 to 40% by weight of polyetherester of specific structure, based on the total (A) to (E).
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: August 20, 2002
    Assignee: Chisso Corporation
    Inventors: Koji Minamoto, Masahito Katsuya, Yukinori Kataoka
  • Patent number: 6211101
    Abstract: The present invention provides a durable hydrophilic fiber and fabric using said fiber having superior durable hydrophilicity being able to utilize preferably in the medical or hygienic material sections. The durable hydrophilic fiber of the invention can be obtained by applying 0.2 to 1.5% by weight of a fiber treating agent to a thermoplastic fiber based on the thermoplastic fiber. The fiber treating agent contains at least 40% by weight of a mixture comprising 80 to 20% by weight of (A) betaine ampho-ionic surface active agent and 20 to 80% by weight of (B) di-carboxylic acid ester compound from polyalkylene adduct of hydroxy-fatty acid ester.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: April 3, 2001
    Assignee: Chisso Corporation
    Inventors: Toshihiko Tsutsui, Masayasu Suzuki, Masahito Katsuya
  • Patent number: 5981068
    Abstract: Modified polyolefin fibers capable of easily producing a non-woven fabric having a high strength and a superior feeling, and provided with a broad range of processing temperature and further a low temperature adhesiveness and suitable to heating roll processing, and a non-woven fabric using the same are provided,which fibers are obtained by adhering 0.1 to 1.0% by weight of an oiling agent composed mainly of a dibasic acid ester and/or a fatty acid ester, to polyolefin fibers having an index of birefringence of 0.054 or less, and which non-woven fabric has a strength of 0.85 or higher (Kg/5 cm) at 134.degree. C. and a processing temperature width of 132.degree. to 138.degree. C.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: November 9, 1999
    Assignee: Chisso Corporation
    Inventors: Yoshimi Tsujiyama, Masahiko Taniguchi, Hidemi Ito, Masahito Katsuya
  • Patent number: 5750256
    Abstract: A water-repellent fiber having adhered to the fiber surface of a thermoplastic resin, which is a fiber a textile oil in the amount of 0.1-0.8% by weight of the fiber comprising ingredients of the following (A), (B) and (C) wherein the textile oil comprises:(A) 5-15% by weight of at least one alkylsulfonate,(B) 5-45% by weight of at least one compound selected from polyol esters and aliphatic acid alkanol amides, and(C) 40-90% by weight of at least one compound selected from dibasic acid esters and polyethylene glycol esters.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: May 12, 1998
    Assignee: Chisso Corporation
    Inventors: Hidemi Ito, Masahiko Taniguchi, Yoshimi Tsujiyama, Masahito Katsuya