Patents by Inventor Susumu Hibi

Susumu Hibi 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).

  • Recyclable cold curing aqueous coating composition and method for recycling it
    Patent number: 6251483
    Abstract: The present invention provides a recyclable cold curing aqueous coating composition, comprising (a) an oxidative-polymerizable, modified epoxy resin with an acid value of 25 to 60, comprising 20 to 70 percents by weight of an epoxy resin based on the total weight of said modified epoxy resin, of which a particle size is not more than 200 nm in an aqueous medium, (b) an anticorrosive pigment and/or an ampholytic metal oxide and (c) a drier. The recyclable cold curing aqueous coating composition of the present invention can provide a coating film having improved water resistance and corrosion resistance, and repeatedly reuse by recycling and readjusting. The present invention also provides a method for recycling the cold curing aqueous coating composition.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: June 26, 2001
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Masakazu Watanabe, Masahiro Yamauchi, Susumu Hibi, Junichi Sueyoshi
  • Recyclable cold curing aqueous coating composition and method for recycling it
    Patent number: 6127001
    Abstract: The present invention provide a recyclable cold curing aqueous coating composition comprising an acrylic group-modified epoxidized ester resin with acid vale of 25 to 60, which is formed from an epoxy resin (a), a fatty acid (b) and an ethylenically unsaturated monomer (c) in a component (a)/component (b)/component (c) weigh % ratio of 20 to 70/20 to 50/3 to 50, the sum of (a), (b) and (c) being 100 weight %, and a method for reusing it. For the method of the present invention, the coating composition has improved recycling properties by optimizing the properties such as acid value of the resin, the pH of a collecting solution for use to collect the coating composition and a content of a hydrophilic solvent in the collecting solution.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: October 3, 2000
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Susumu Hibi, Masahiro Yamauchi, Junichi Sueyoshi
  • Method and apparatus for testing a magnetic bubble memory
    Patent number: 4233668
    Abstract: Method and apparatus for testing a magnetic bubble memory are disclosed wherein a most severe magnetic bubble domain arrangement which fully causes the ununiformity of magnetic interaction between magnetic bubble domains is experimentally determined, and a basic pattern [P] and a test information pattern determining an arrangement of the basic patterns [P] and complementary patterns [P] thereof for realizing that magnetic bubble domain arrangement are stored in memory units, respectively, and the basic patterns [P] and the complementary patterns [P] are sequentially read out in accordance with the test information pattern to generate magnetic bubble domain trains in a storage area of the magnetic bubble memory.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: November 11, 1980
    Assignees: Nippon Telegraph and Telephone Public Corporation, Hitachi, Ltd.
    Inventors: Nakahiko Yamaguchi, Susumu Hibi, Shigeru Yoshizawa, Shoji Yoshimoto, Akira Kobayashi