Patents by Inventor Mamoru Ishitani

Mamoru Ishitani 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).

  • Water repellent coating composition, method for preparing the same, and coating films and coated articles using the same
    Patent number: 6462115
    Abstract: A water repellent coating composition includes fine particles having functional groups on their surfaces and having a particle diameter ranging from 10 nm to 1 mm; a coupling agent containing (a) a functional group which is capable of reacting with the functional group of the fine particles and (b) a water repellent fluorinated group; a binder resin for binding the fine particles; and a solvent for the binder.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: October 8, 2002
    Assignees: Nippon Telegraph and Telephone Corporation, NTT Advanced Technology Corporation
    Inventors: Masaya Takahashi, Susumu Fujimori, Mamoru Ishitani, Taketoshi Matsuura, Hisao Tabei, Yoshiaki Haga, Akira Nohara, Nobuhiro Funakoshi
  • Water repellent coating composition, and coated films and coated articles using the same
    Patent number: 6117555
    Abstract: A water repellent coating composition comprises a fluororesin powder having a specific surface area ranging from 27 to 48 m.sup.2 /g and a molecular weight ranging from 10,000 to 100,000; an acrylic-silicone binder resin; and a solvent. The fluororesin may be preferably at least one resin selected from polytetrafluoroethylene resins, tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer resins, and tetrafluoroethylene/hexafluoropropylene copolymer resins. The coating composition can be used in various fields including constructions, civil engineering, transportation, communication. The coating films and coated articles produced with the water repellent coating composition exhibit excellent water repellency, antisnow- or antiice-sticking properties, and weatherability.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: September 12, 2000
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Susumu Fujimori, Masaya Takahashi, Mamoru Ishitani, Shinji Tsuru, Akira Iwasawa, Fumio Yamamoto, Satoru Kurosawa