Patents by Inventor Kazuyuki Hosoi

Kazuyuki Hosoi 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).

  • Material for imparting thixotropy and pasty resin composition
    Patent number: 7186763
    Abstract: Surface-treated calcium carbonate characterized by giving, upon analysis by the method of mercury penetration, a void diameter distribution curve which has a peak for the most probable void diameter at smaller than 0.03 ?m and has a most probable void volume of 0.05 to 0.5 cm3/g; and a pasty resin composition containing the surface-treated calcium carbonate. The calcium carbonate preferably comprises one obtained by surface-treating calcium carbonate having a BET specific surface area of 10 to 100 m2/g with an unsaturated fatty acid (A) and a saturated fatty acid (B).
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: March 6, 2007
    Assignee: Shiraishi Kogyo Kaisha, Ltd.
    Inventors: Yoshisada Kayano, Isao Morioka, Kazuyuki Hosoi
  • Material for imparing thixotropy and pasty resin composition
    Publication number: 20050004266
    Abstract: Surface-treated calcium carbonate characterized by giving, upon analysis by the method of mercury penetration, a void diameter distribution curve which has a peak for the most probable void diameter at smaller than 0.03 ?m and has a most probable void volume of 0.05 to 0.5 cm3/g; and a pasty resin composition containing the surface-treated calcium carbonate. The calcium carbonate preferably comprises one obtained by surface-treating calcium carbonate having a BET specific surface area of 10 to 100 m2/g with an unsaturated fatty acid (A) and a saturated fatty acid (B).
    Type: Application
    Filed: November 19, 2002
    Publication date: January 6, 2005
    Inventors: Yoshisada Kayano, Isao Morioka, Kazuyuki Hosoi
  • Surface-coated calcium carbonate particles, method for manufacturing same, and adhesive
    Patent number: 6686044
    Abstract: The calcium carbonate particles of the present invention are coated on their surface with (1) a fatty acid mixture comprising (1A) at least one of saturated fatty acids and salts thereof and (1B) at least one of unsaturated fatty acids and salts thereof, the (1A):(1B) weight ratio being in the range of 30:70 to 70:30, and (2) an organic compound such as a phthalic ester. The calcium carbonate particles of the invention easily disperse in the resin and other components that constitute an adhesive composition, and impart excellent viscosity stability and highly improved adhesion to the resulting adhesive.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: February 3, 2004
    Assignee: Shiraishi Kogyo Kaisha, Ltd.
    Inventors: Go Nakai, Takao Fukuda, Kazuyuki Hosoi
  • Surface-coated calcium carbonate particles, method for manufacturing same, and adhesive
    Publication number: 20020102404
    Abstract: The calcium carbonate particles of the present invention are coated on their surface with (1) a fatty acid mixture comprising (1A) at least one of saturated fatty acids and salts thereof and (1B) at least one of unsaturated fatty acids and salts thereof, the (1A):(1B) weight ratio being in the range of 30:70 to 70:30, and (2) an organic compound such as a phthalic ester. The calcium carbonate particles of the invention easily disperse in the resin and other components that constitute an adhesive composition, and impart excellent viscosity stability and highly improved adhesion to the resulting adhesive.
    Type: Application
    Filed: December 4, 2001
    Publication date: August 1, 2002
    Inventors: Go Nakai, Takao Fukuda, Kazuyuki Hosoi