Patents by Inventor Saori Yoshimatsu

Saori Yoshimatsu 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).

  • Acetylide-form propargyl-containing resin composition for cationic electrocoating
    Patent number: 6387987
    Abstract: An acetylide-form propargyl-containing resin composition for cationic electrocoating, which comprises a resin having a skeleton of epoxy resin and has a number average molecular weight of 500 to 20,000, and which contains, per 100 grams of the resin composition solids, 5 to 400 millimoles of sulfonium group and 10 to 495 millimoles of propargyl group, the total content of the sulfonium and propargyl groups being not more than 500 millimoles per 100 grams of the resin composition solids, said propargyl group being partly in the form of an acetylide. This resin composition may further contain unsaturated double bond.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: May 14, 2002
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Hiroyuki Sakamoto, Toshitaka Kawanami, Ichiro Kawakami, Takayuki Kokubun, Takao Saito, Saori Yoshimatsu
  • Acetylide-form propargyl-containing resin composition for cationic electrocoating
    Publication number: 20010018498
    Abstract: An acetylide-form propargyl-containing resin composition for cationic electrocoating, which comprises a resin having a skeleton of epoxy resin and has a number average molecular weight of 500 to 20,000, and which contains, per 100 grams of the resin composition solids, 5 to 400 millimoles of sulfonium group and 10 to 495 millimoles of propargyl group, the total content of the sulfonium and propargyl groups being not more than 500 millimoles per 100 grams of the resin composition solids, said propargyl group being partly in the form of an acetylide. This resin composition may further contain unsaturated double bond.
    Type: Application
    Filed: February 15, 2001
    Publication date: August 30, 2001
    Applicant: Nippon Paint Co., Ltd.
    Inventors: Hiroyuki Sakamoto, Toshitaka Kawanami, Ichiro Kawakami, Takayuki Kokubun, Takao Saito, Saori Yoshimatsu
  • Aliphatic hydrocarbon group-containing resin composition for cationic electrocoating and cationic electrocoating composition
    Patent number: 6262146
    Abstract: An aliphatic hydrocarbon group-containing resin composition for cationic electrocoating, which comprises a resin having a skeleton of epoxy resin and has a number average molecular weight of 500 to 20,000, and which contains, per 100 grams of the nonvolatile matter in said resin composition, (a) 5 to 400 millimoles of sulfonium group, (b) 80 to 355 millimoles of at least one aliphatic hydrocarbon group containing 8 to 24 carbon atoms and optionally containing unsaturated double bond within its chain, and (c) 10 to 315 millimoles of at least one member selected from among propargyl group and a terminal unsaturated double bond-containing organic group containing 3 to 7 carbon atoms; the total content of said (a), said (b) and said (c) being not more than 500 millimoles per 100 grams of the nonvolatile matter in said resin composition.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: July 17, 2001
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Hiroyuki Sakamoto, Saori Yoshimatsu, Ichiro Kawakami, Koji Izumiya, Toshitaka Kawanami, Takao Saito
  • Acetylide-form propargyl-containing epoxy resin composition for cationic electrocoating
    Patent number: 6218481
    Abstract: An acetylide-form propargyl-containing resin composition for cationic electrocoating, which comprises a resin having a skeleton of epoxy resin and has a number average molecular weight of 500 to 20,000, and which contains, per 100 grams of the resin composition solids, 5 to 400 millimoles of sulfonium group and 10 to 495 millimoles of propargyl group, the total content of the sulfonium and propargyl groups being not more than 500 millimoles per 100 grams of the resin composition solids, said propargyl group being partly in the form of an acetylide. This resin composition may further contain unsaturated double bonds.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: April 17, 2001
    Assignee: Nippon Paint Co., LTD
    Inventors: Hiroyuki Sakamoto, Toshitaka Kawanami, Ichiro Kawakami, Takayuki Kokubun, Takao Saito, Saori Yoshimatsu
  • Thermosetting resin composition
    Patent number: 5780530
    Abstract: A thermosetting resin or coating composition contains (a) a film-forming polyol resin, (b) a curing agent reactive with the polyol resin, (c) a hydrolyzate/polycondensate of tri- or tetraalkoxysilane, and (d) a catalyst for promoting the reaction between the polyol resin (a) and the curing agent (b).
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: July 14, 1998
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Keita Mizutani, Saori Yoshimatsu, Kinya Yamakawa