Patents by Inventor Akira Akaogi

Akira Akaogi 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).

  • Polymer emulsion and process for preparing the same
    Patent number: 6359032
    Abstract: The present invention provides a polymer emulsion which contains polymer particles having an average particle size of not more than 30 &mgr;m and having core-parts and shell-parts; which is composed of chitosan (a) and a polymer (b) of organic acids having a reactive vinyl group or a salt thereof, as constituent component of shell-part, and composed of a polymer (c) of hydrophobic monomers, as constituent component of core-part. Further, the present invention provides a coloring agent particle comprising a polymer particle in the above-mentioned polymer emulsion; and wherein a coloring material (k) is present in the shell-part and/or core-part. Furthermore, the present invention provides a deodorizing fiber wherein a polymer particle in the above-mentioned polymer emulsion is present on the surface of the fiber.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: March 19, 2002
    Assignee: Kao Corporation
    Inventors: Kazuo Kuwahara, Yoshihiro Hasebe, Akira Akaogi, Tsuneo Yasumura, Toshie Takahashi, Osamu Tachizawa, Eiji Terada
  • Polymer emulsion and process for preparing the same
    Publication number: 20010053803
    Abstract: The present invention provides a polymer emulsion which contains polymer particles having an average particle size of not more than 30 &mgr;m and having core-parts and shell-parts; which is composed of chitosan (a) and a polymer (b) of organic acids having a reactive vinyl group or a salt thereof, as constituent component of shell-part, and composed of a polymer (c) of hydrophobic monomers, as constituent component of core-part.
    Type: Application
    Filed: January 9, 2001
    Publication date: December 20, 2001
    Applicant: KAO CORPORATION
    Inventors: Kazuo Kuwahara, Yoshihiro Hasebe, Akira Akaogi, Tsuneo Yasumura, Toshie Takahashi, Osamu Tachizawa, Eiji Terada
  • Polymer emulsion and process for producing the same
    Patent number: 6252003
    Abstract: The present invention provides a polymer emulsion which contains polymer particles having an average particle size of not more than 30 &mgr;m and having core-parts and shell-parts; which is composed of chitosan (a) and a polymer (b) of organic acids having a reactive vinyl group or a salt thereof, as constituent component of shell-part, and composed of a polymer (c) of hydrophobic monomers, as constituent component of core-part. Further, the present invention provides a coloring agent particle comprising a polymer particle in the above-mentioned polymer emulsion; and wherein a coloring material (k) is present in the shell-part and/or core-part. Furthermore, the present invention provides a deodorizing fiber wherein a polymer particle in the above-mentioned polymer emulsion is present on the surface of the fiber.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: June 26, 2001
    Assignee: Kao Corporation
    Inventors: Kazuo Kuwahara, Yoshihiro Hasebe, Akira Akaogi, Tsuneo Yasumura, Toshie Takahashi, Osamu Tachizawa, Eiji Terada
  • Polyvalent metal salts of phosphoric diester and organo(poly)siloxanes modified with polyvalent metal salt of phosphoric diester
    Patent number: 5872272
    Abstract: The present invention relates to polyvalent metal salts of a phosphoric diester represented by formula (1) and organo(poly)siloxanes modified with a polyvalent metal salt of a phosphoric diester having the structural units represented by formulae (9) and (10): ##STR1## wherein R.sup.1 represents a C1 to C20 linear or branched alkyl group, R.sup.2 and R.sup.4 are the same or different and independently represent a C2 to C3 linear or branched alkylene group, R.sup.3 represents a C3 to C20 linear or C5 to C20 branched alkylene group, A represents a group --COO-- or --O--, x and y are the same or different from each other and independently represent an integer of 0 to 10, L represents a C1 to C40 linear or branched alkyl group or a group, R.sup.1 --(OR.sup.2).sub.x --A--R.sup.3 (OR.sup.4).sub.y -- wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, A, x and y have the same meaning as defined herein before, M represents a divalent or polyvalent metal atom, and m represents the same value as the valence of M.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: February 16, 1999
    Assignee: Kao Corporation
    Inventors: Shinji Yano, Junichi Fukasawa, Hironori Kawasaki, Munehisa Okutsu, Takeshi Ihara, Katsumi Kita, Yoshiaki Fujikura, Akira Akaogi