Patents by Inventor Seiji Kayukawa

Seiji Kayukawa 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: 8272879
    Abstract: The present invention provides a planar connector having excellent performances including flatness, warp-deformation resistance, and heat resistance, being capable of responding to shape changes in recent planar connectors. Specifically, the planar connector is composed of a composite resin composition comprises (A) a liquid crystalline polymer containing 55% by mole or less of p-hydroxy benzoic acid residue and having a melting point of 330° C. or higher, (B) a plate-like inorganic filler, and (C) a fibrous filler having a weight average fiber length within a range of 250 to 600 ?m, the amount of (B) component being 25 to 35% by weight to the total composition, the amount of (C) component being 10 to 25% by weight to the total composition, the sum in total of (B) component and (C) component being 40 to 50% by weight to the total composition, wherein the connector has a lattice structure inside an outer frame, and has an opening inside the lattice area, and wherein the pitch interval of the lattice area is 1.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: September 25, 2012
    Assignee: Polyplastics Co., Ltd.
    Inventors: Hiroki Fukatsu, Raita Nishikawa, Hirokazu Ohshiba, Seiji Kayukawa, Kazufumi Watanabe
  • Patent number: 7980897
    Abstract: Provided is a material capable of forming a molded product which has good mechanical properties with low warpage while being excellent in any of the performance including heat resistance and flowability, even if the molded product is an asymmetric electronic parts. Specifically, the asymmetric electronic parts is prepared by molding a liquid crystalline polymer composition comprising (A) a fibrous filler having an average fiber diameter within the range of 5 to 30 ?m, having a weight average fiber length within the range of 250 to 350 ?m, excluding 10 ?m or shorter fiber length, and having a content of a fibrous filler being 700 ?m or longer within the range of 5% by weight or less; and (B) a plate-like filler having an average particle size within the range of 0.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: July 19, 2011
    Assignee: Polyplastics Co., Ltd.
    Inventors: Hiroki Fukatsu, Seiji Kayukawa, Hirokazu Ohshiba, Raita Nishikawa
  • Publication number: 20110086968
    Abstract: The present invention provides a planar connector having excellent performances including flatness, warp-deformation resistance, and heat resistance, being capable of responding to shape changes in recent planar connectors. Specifically, the planar connector is composed of a composite resin composition comprises (A) a liquid crystalline polymer containing 55% by mole or less of p-hydroxy benzoic acid residue and having a melting point of 330° C. or higher, (B) a plate-like inorganic filler, and (C) a fibrous filler having a weight average fiber length within a range of 250 to 600 ?m, the amount of (B) component being 25 to 35% by weight to the total composition, the amount of (C) component being 10 to 25% by weight to the total composition, the sum in total of (B) component and (C) component being 40 to 50% by weight to the total composition, wherein the connector has a lattice structure inside an outer frame, and has an opening inside the lattice area, and wherein the pitch interval of the lattice area is 1.
    Type: Application
    Filed: May 19, 2009
    Publication date: April 14, 2011
    Inventors: Hiroki Fukatsu, Raita Nishikawa, Hirokazu Ohshiba, Seiji Kayukawa, Kazufumi Watanabe
  • Publication number: 20090197471
    Abstract: Provided is a material capable of forming a molded product which has good mechanical properties with low warpage while being excellent in any of the performance including heat resistance and flowability, even if the molded product is an asymmetric electronic parts. Specifically, the asymmetric electronic parts is prepared by molding a liquid crystalline polymer composition comprising (A) a fibrous filler having an average fiber diameter within the range of 5 to 30 ?m, having a weight average fiber length within the range of 250 to 350 ?m, excluding 10 ?m or shorter fiber length, and having a content of a fibrous filler being 700 ?m or longer within the range of 5% by weight or less; and (B) a plate-like filler having an average particle size within the range of 0.
    Type: Application
    Filed: August 23, 2007
    Publication date: August 6, 2009
    Applicant: Polyplastics Co., Ltd.
    Inventors: Hiroki Fukatsu, Seiji Kayukawa, Hirokazu Ohshiba, Raita Nishikawa