Patents by Inventor Yukinari Negi

Yukinari Negi 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).

  • Publication number: 20210403710
    Abstract: The present invention provides a thermoplastic resin pellet capable of obtaining a molded body which is excellent in metallic coloring properties, surface smoothness property, and flow mark suppressing properties, and has a sufficient metallic appearance. The present invention relates a metallic-tone thermoplastic resin pellet comprising 100 parts by weight of a thermoplastic resin (A), 0.5 to 10 parts by mass of metallic particles (B), and 0 to 10 parts by mass of plate-like, fibrous and/or granular filler (C), wherein the pellet has a cylindrical shape having a circular or elliptical cross section perpendicular to the longitudinal direction, and the pellet has a length of 0.5 to 2.8 mm and a cross-sectional major diameter of 0.5 to 2.8 mm.
    Type: Application
    Filed: October 28, 2019
    Publication date: December 30, 2021
    Applicant: UNITIKA LTD.
    Inventors: Yukinari NEGI, Yoshihito KISARA, Masako TANAKA
  • Patent number: 8008389
    Abstract: Provided is a polyamide resin composition superior in mechanical properties such as strength and elastic modulus and also in toughness, durability, frictional abrasion resistance, and water absorption resistance, wherein the polyamide resin composition contains 0.1 to 4 parts by mass of an aliphatic epoxy compound (B) having three glycidyl groups in the molecule, formulated to 100 parts by mass of a polyamide resin (A) with silicate layers of swellable lamellar silicate dispersed therein. The epoxy equivalence of the aliphatic epoxy compound (B) is preferably 180 g/eq or less, and the aliphatic epoxy compound (B) preferably has trimethylolpropane and/or glycerol as a skeleton.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: August 30, 2011
    Assignee: Unitika Ltd.
    Inventor: Yukinari Negi
  • Publication number: 20090182086
    Abstract: Provided is a polyamide resin composition superior in mechanical properties such as strength and elastic modulus and also in toughness, durability, frictional abrasion resistance, and water absorption resistance. A polyamide resin composition, comprising 0.1 to 4 parts by mass of an aliphatic epoxy compound (B) having three glycidyl groups in the molecule, formulated to 100 parts by mass of a polyamide resin (A) with silicate layers of swellable lamellar silicate dispersed therein. The epoxy equivalence of the aliphatic epoxy compound (B) is preferably 180 g/eq or less, and the aliphatic epoxy compound (B) preferably has trimethylolpropane and/or glycerol as a skeleton.
    Type: Application
    Filed: April 24, 2007
    Publication date: July 16, 2009
    Inventor: Yukinari Negi