Patents by Inventor Takanobu Iizuka

Takanobu Iizuka 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: 6787190
    Abstract: This invention provides a water based paint composition containing polyurethane resin which is formed by urethanation reaction of polyisocyanate compound with polyalkylene glycol and a further reaction of so formed isocyanate-containing prepolymer with a monohydric alcohol having at least 5 carbons, and water-soluble organic solvent having boiling point not higher than 150° C.; and provides also a process for forming multi-layered coating, which comprises applying onto a metallic object cationic electropaint, above-described water based paint composition, water based intermediate coating and top coating, by the order stated.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: September 7, 2004
    Assignee: Kansai Paint Co., Ltd.
    Inventor: Takanobu Iizuka
  • Publication number: 20020177653
    Abstract: This invention provides a water based paint composition containing polyurethane resin which is formed by urethanation reaction of polyisocyanate compound with polyalkylene glycol and a further reaction of so formed isocyanate-containing prepolymer with a monohydric alcohol having at least 5 carbons, and water-soluble organic solvent having boiling point not higher than 150° C.; and provides also a process for forming multi-layered coating, which comprises applying onto a metallic object cationic electropaint, above-described water based paint composition, water based intermediate coating and top coating, by the order stated.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 28, 2002
    Inventor: Takanobu Iizuka
  • Patent number: 6436468
    Abstract: The present invention provides a repair coating process, the repair coating process consisting of grinding the part of an intermediate coating surface to be repaired and then performing a repair coating of the ground part with a thermo-curable organic solvent type repair paint (F) containing a neutralized product of a hydroxyl group-containing resin having an acid value of 5-100 mgKOH/g and a crosslinking agent in forming multilayer coating films by coating an electro-deposition paint (A) and an intermediate paint (B) and curing them by heating, then, after performing a repair coating on the intermediate coating surface, successively coating wet-on-wet a white water base coat (C), a pearly base coat (D), and a clear coat (E), and then curing by crosslinking the films of the above-mentioned coats (C), (D), and (E) simultaneously through heating.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: August 20, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventor: Takanobu Iizuka
  • Publication number: 20010033892
    Abstract: The present invention is to provide a repair coating process, which does not require heating the coating film coated to repair the part, from which dust, seediness etc.
    Type: Application
    Filed: April 30, 2001
    Publication date: October 25, 2001
    Inventor: Takanobu Iizuka
  • Patent number: 6296899
    Abstract: The present invention is to provide a repair coating process, the repair coating process consists of grinding the part of an intermediate coating surface to be repaired and then performing a repair coating of the ground part with a thermocurable organic solvent type repair paint (F) containing a neutralized product of a hydroxyl group-containing resin having an acid value of 5-100 mgKOH/g and a crosslinking agent in forming multilayer coating films by coating an electro-deposition paint (A) and an intermediate paint (B) and curing them by heating, then, after performing a repair coating on the intermediate coating surface, successively coating wet-on-wet a white type water base coat (C) a pearly base coat (D) and a clear coat (E), and then curing by crosslinking the films of the above-mentioned coats (C), (D) and (E) simultaneously through heating.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: October 2, 2001
    Assignee: Kansai Paint Co., Ltd.
    Inventor: Takanobu Iizuka