Patents by Inventor Hidehiro Ishizuka

Hidehiro Ishizuka 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: 8513336
    Abstract: A flame-retardant chlorine-containing resin composition is obtained by blending components (A), (B), and (C), and additionally component (D) if necessary, into a chlorine-containing resin: Component (A): a (poly)phosphate compound represented by the following general formula (1); Component (B): a (poly)phosphate compound represented by the following general formula (3); Component (C): wood flour; and Component (D): zinc oxide. In the formula (1), n represents a number from 1 to 100; X1 represents e.g. a triazine derivative represented by the general formula (2); and 0<p?n+2. In the formula (2), Z1 and Z2 each represent e.g. a —NR5R6 group. In the formula (3), r represents a number from 1 to 100; Y1 represents e.g. [R1R2N(CH2)mNR3R4]; R1, R2, R3, and R4 each represent e.g. a linear or branched alkyl group having 1 to 5 carbon atoms; m represents an integer from 1 to 10; and 0<q?r+2.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: August 20, 2013
    Assignee: Adeka Corporation
    Inventors: Hidehiro Ishizuka, Taro Mitsudera, Takayoshi Kaneda, Yuki Endo
  • Publication number: 20100317771
    Abstract: A flame-retardant chlorine-containing resin composition is obtained by blending components (A), (B), and (C), and additionally component (D) if necessary, into a chlorine-containing resin: Component (A): a (poly)phosphate compound represented by the following general formula (1); Component (B): a (poly)phosphate compound represented by the following general formula (3); Component (C): wood flour; and Component (D): zinc oxide. In the formula (1), n represents a number from 1 to 100; X1 represents e.g. a triazine derivative represented by the general formula (2); and 0<p?n+2. In the formula (2), Z4 and Z2 each represent e.g. a —NR5R6 group. In the formula (3), r represents a number from 1 to 100; Y1 represents e.g. [R1R2N(CH2)mNR3R4]; R1, R2, R3, and R4 each represent e.g. a linear or branched alkyl group having 1 to 5 carbon atoms; m represents an integer from 1 to 10; and 0<q?r+2.
    Type: Application
    Filed: February 16, 2009
    Publication date: December 16, 2010
    Applicant: ADEKA CORPORATION
    Inventors: Hidehiro Ishizuka, Taro Mitsudera, Takayoshi Kaneda, Yuki Endo
  • Patent number: 7534823
    Abstract: A vinyl chloride resin composition comprising 100 parts by mass of a vinyl chloride resin, (a) 0.001 to 10 parts by mass of at least one benzotriazole compound represented by general formula (I), and (b) 0.001 to 10 parts by mass of at least one salicylamide compound represented by general formula (II): wherein R1, R2, R3, and R4 each represent a hydrogen atom, a halogen atom, a hydroxyl group, a nitro group, a carboxyl group, an alkyl group, an alkoxycarbonyl group or an alkanoylamino group. wherein R represents a hydrogen atom, an alkyl group having 1 to 12 carbon atoms or an alkoxy group having 1 to 12 carbon atoms.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: May 19, 2009
    Assignee: Adeka Corporation
    Inventors: Hidehiro Ishizuka, Yutaka Yonezawa
  • Patent number: 7405252
    Abstract: A vinyl chloride resin composition comprising 100 parts by mass of a vinyl chloride resin and a co-ground mixture of (a) 0.001 to 10 parts by mass of at least one member selected from the group consisting of an organic phosphoric ester compound and a metal salt thereof and (b) 0.001 to 10 parts by mass of a grinding aid. The composition is excellent in transparency, heat stability, and heat discoloration resistance.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: July 29, 2008
    Assignee: Adeka Corporation
    Inventors: Hidehiro Ishizuka, Daisuke Takeda, Yutaka Yonezawa
  • Publication number: 20080045635
    Abstract: A vinyl chloride resin composition comprising 100 parts by mass of a vinyl chloride resin, (a) 0.001 to 10 parts by mass of at least one benzotriazole compound represented by general formula (I), and (b) 0.001 to 10 parts by mass of at least one salicylamide compound represented by general formula (II): wherein R1, R2, R3, and R4 each represent a hydrogen atom, a halogen atom, a hydroxyl group, a nitro group, a carboxyl group, an alkyl group, an alkoxycarbonyl group or an alkanoylamino group. wherein R represents a hydrogen atom, an alkyl group having 1 to 12 carbon atoms or an alkoxy group having 1 to 12 carbon atoms.
    Type: Application
    Filed: June 28, 2005
    Publication date: February 21, 2008
    Applicant: ADEKA Corporation
    Inventors: Hidehiro Ishizuka, Yutaka Yonezawa
  • Patent number: 7279509
    Abstract: An antibacterial composition for medical tools made of a vinyl chloride resin, which comprises a specific cyclic organic phosphoric ester compound and a specific pyrithione compound and has excellent antibacterial properties; and a medical tool made of an antibacterial vinyl chloride resin obtained by adding the antibacterial composition to a vinyl chloride resin.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: October 9, 2007
    Assignee: Adeka Corporation
    Inventors: Ryoji Kimura, Hidehiro Ishizuka, Junji Shibasaki
  • Publication number: 20070100049
    Abstract: A vinyl chloride resin composition comprising 100 parts by mass of a vinyl chloride resin and a co-ground mixture of (a) 0.001 to 10 parts by mass of at least one member selected from the group consisting of an organic phosphoric ester compound and a metal salt thereof and (b) 0.001 to 10 parts by mass of a grinding aid. The composition is excellent in transparency, heat stability, and heat discoloration resistance.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 3, 2007
    Applicant: Adeka Corporation
    Inventor: Hidehiro Ishizuka
  • Publication number: 20040166163
    Abstract: An antibacterial composition for medical tools made of a vinyl chloride resin, which comprises a specific cyclic organic phosphoric ester compound and a specific pyrithione compound and has excellent antibacterial properties; and a medical tool made of an antibacterial vinyl chloride resin obtained by adding the antibacterial composition to a vinyl chloride resin.
    Type: Application
    Filed: January 6, 2004
    Publication date: August 26, 2004
    Inventors: Ryoji Kimura, Hidehiro Ishizuka, Junji Shibasaki