Patents by Inventor Ryoichi Hiroi

Ryoichi Hiroi 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: 8258242
    Abstract: Disclosed are: a compatibilizing agent for a polymer alloy, which can increase the compatibility with a variety of polymers; a polymer alloy using the compatibilizing agent; and master batch for a polymer alloy. Specifically disclosed is a compatibilizing agent which is used for the preparation of a polymer alloy by blending at least one polymer (A) selected from the group consisting of a polyphenylene sulfide, a polyphenylene ether and a polyamide with a polymer (B) of a different type from the polymer (A) at such a ratio that the amount of the polymer (A) blended is the same as or more than that of the polymer (B). The compatibilizing agent comprises a nanosheet-shaped layered titanic acid which is produced by intercalate an organic basic compound between the layers of a layered titanic acid.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: September 4, 2012
    Assignee: Otsuka Chemical Co., Ltd.
    Inventors: Ryoichi Hiroi, Minoru Yamamoto
  • Publication number: 20090326153
    Abstract: Disclosed are: a compatibilizing agent for a polymer alloy, which can increase the compatibility with a variety of polymers; a polymer alloy using the compatibilizing agent; and master batch for a polymer alloy. Specifically disclosed is a compatibilizing agent which is used for the preparation of a polymer alloy by blending at least one polymer (A) selected from the group consisting of a polyphenylene sulfide, a polyphenylene ether and a polyamide with a polymer (B) of a different type from the polymer (A) at such a ratio that the amount of the polymer (A) blended is the same as or more than that of the polymer (B). The compatibilizing agent comprises a nanosheet-shaped layered titanic acid which is produced by intercalate an organic basic compound between the layers of a layered titanic acid.
    Type: Application
    Filed: August 16, 2007
    Publication date: December 31, 2009
    Inventors: Ryoichi Hiroi, Minoru Yamamoto
  • Patent number: 7455826
    Abstract: A layered titanic acid produced by subjecting a layered titanate represented by a general formula: AxMy?zTi2?(y+z)O4, wherein A and M represent metals having a valence of 1 to 3 and being different from each other, ? represents a defect to be occupied by titanium, x is a positive and real number satisfying 0<x<1.0, y and z are positive and real numbers satisfying 0<y+z<1.0, to an acid treatment, to thereby substitute hydrogen ions or hydronium ions for 40 to 99% of A and/or M ions; a lamellar titanic acid produced by reacting the layered titanic acid with a basic compound, to thereby delaminate the layered titanic acid; and a lamellar titanium oxide produced by subjecting the lamellar titanic acid to a heat treatment or the like.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: November 25, 2008
    Assignee: Otsuka Chemical Co., Ltd.
    Inventors: Akiyoshi Inubushi, Harue Matsunaga, Ryoichi Hiroi
  • Patent number: 7223831
    Abstract: A biodegradable resin composition comprising polylactic acid and nanosheeted layered titanic acid characterized in that the nonasheeted layered titanic acid is nanosheeted layered titanic acid obtained by a preparing process comprising the steps of: (1) treating layered titanate represented by the general formula: AxMy?zTi2?(y+z)O4??(1) [wherein A and M represent a different monovalent to trivalent metal, ? represents a part defective in Ti, x is a positive real number satisfying 0<x<1.0, and y and z are 0 or a positive real number satisfying 0<y+z<1.0, respectively] with an acid or warm water to replace an A ion and/or a M ion with hydrogen and/or a hydronium ion, and (2) reacting the resulting compound with a basic compound having interlayer swelling activity thereon, to swell or peel between layers.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: May 29, 2007
    Assignee: Otsuka Chemical Co., Ltd.
    Inventors: Minoru Yamamoto, Ryoichi Hiroi
  • Publication number: 20060089420
    Abstract: A biodegradable resin composition comprising polylactic acid and nanosheeted layered titanic acid characterized in that the nonasheeted layered titanic acid is nanosheeted layered titanic acid obtained by a preparing process comprising the steps of: (1) treating layered titanate represented by the general formula: AxMy?zTi2?(y+z)O4??(1) [wherein A and M represent a different monovalent to trivalent metal, ? represents a part defective in Ti, x is a positive real number satisfying 0<x<1.0, and y and z are 0 or a positive real number satisfying 0<y+z<1.0, respectively]with an acid or warm water to replace an A ion and/or a M ion with hydrogen and/or a hydronium ion, and (2) reacting the resulting compound with a basic compound having interlayer swelling activity thereon, to swell or peel between layers.
    Type: Application
    Filed: October 26, 2004
    Publication date: April 27, 2006
    Inventors: Minoru Yamamoto, Ryoichi Hiroi
  • Publication number: 20040234447
    Abstract: A layered titanic acid produced by subjecting a layered titanate represented by a general formula: AxMy□zTi2−(y+z)O4, wherein A and M represent metals having a valence of 1 to 3 and being different from each other, □ represents a defect to be occupied by titanium, x is a positive and real number satisfying 0<x<1.0, y and z are positive and real numbers satisfying 0<y+z<1.0, to an acid treatment, to thereby substitute hydrogen ions or hydronium ions for 40 to 99% of A and/or M ions; a lamellar titanic acid produced by reacting the layered titanic acid with a basic compound, to thereby delaminate the layered titanic acid; and a lamellar titanium oxide produced by subjecting the lamellar titanic acid to a heat treatment or the like.
    Type: Application
    Filed: February 19, 2004
    Publication date: November 25, 2004
    Inventors: Akiyoshi Inubushi, Harue Matsunaga, Ryoichi Hiroi