Patents by Inventor Kiyoshi Ohnishi

Kiyoshi Ohnishi 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).

  • Organic composite-plated steel plate and resin composition for coating material used therein
    Patent number: 6005029
    Abstract: The present invention comprises an improved organic composite-plated steel plate which is obtained by applying a thermosetting resin to a chromate-coated alloy-plated steel plate and curing this, wherein, various aqueous resin compositions having the form of basic coating film formation components, such as, for example, aqueous vinyl modified epoxy ester resins, or aqueous vinyl modified epoxy ester resin / blocked isocyanate compound-types, or aqueous vinyl modified epoxy ester resin / blocked isocyanate compounds / colloidal silica-types, are used as the thermosetting resin described above.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: December 21, 1999
    Assignees: Dainippon Ink and Chemicals, Inc., Nippon Steel Corporation
    Inventors: Shin'ichi Kuwamura, Atsushi Miyagaki, Kiyoshi Ohnishi, Masahide Amemoto, Hisao Odashima, Keitaro Shibata, Akihiro Kasuya, Kiyoshi Ohmori
  • Organic composite-plated steel plate and resin composition for coating material used therein
    Patent number: 5637403
    Abstract: The present invention comprises an improved organic composite-plated steel plate which is obtained by applying a thermosetting resin to a chromate-coated alloy-plated steel plate and curing this, wherein, various aqueous resin compositions having the form of basic coating film formation components, such as, for example, aqueous vinyl modified epoxy ester resins, or aqueous vinyl modified epoxy ester resin/blocked isocyanate compound-types, or aqueous vinyl modified epoxy ester resin/blocked isocyanate compounds/colloidal silica-types, are used as the thermosetting resin described above.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: June 10, 1997
    Assignees: Dainippon Ink and Chemicals, Inc., Nippon Steel Corporation
    Inventors: Shin'ichi Kuwamura, Atsushi Miyagaki, Kiyoshi Ohnishi, Masahide Amemoto, Hisao Odashima, Keitaro Shibata, Akihiro Kasuya, Kiyoshi Ohmori
  • Aqueous coating composition
    Patent number: 5141983
    Abstract: An aqueous coating composition comprising, as essential components, an aqueous polyurethane resin (A) obtained by reacting a diisocyanate and glycols containing a carboxylic acid group-containing glycol to prepare an urethane prepolymer, neutralizing the urethane prepolymer and subjecting the neutralized urethane prepolymer to chain extension with a hydrazine derivative, and an aqueous dispersion (B) of an acrylic copolymer whose constituent monomers contain carbonyl group-containing monomer or an amido group-containing monomer in an amount of at least 0.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: August 25, 1992
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Yoshiki Hasegawa, Fumio Yoshino, Shinichi Yoshioka, Kiyoshi Ohnishi