Patents by Inventor Yasuhiro Tomizaki
Yasuhiro Tomizaki 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: 9017768Abstract: The invention offers methods for forming multilayer coating film excelling in smoothness, distinctness of image, water resistance and chipping resistance, the methods comprising successively applying onto a coating object a water-based first coloring paint and a water-based second coloring paint, and simultaneously heating and curing the resultant first colored coating film and second colored coating film, in which the water-based first coloring paint comprises hydroxy-containing polyester resin, curing agent, and water-dispersible acrylic resin which is obtained by polymerization of a monomer component comprising 30-100 mass % of C5-22 alkyl-containing polymerizable unsaturated monomer and 0-70 mass % of polymerizable unsaturated monomer other than the C5-22 alkyl-containing polymerizable unsaturated monomer.Type: GrantFiled: June 24, 2009Date of Patent: April 28, 2015Assignee: Kansai Paint Co., Ltd.Inventors: Yasuhiro Tomizaki, Takuya Kawachi, Takahisa Ooya
-
Patent number: 8796369Abstract: The present invention provides an aqueous base coating composition comprising (A) a hydroxy-containing resin, (B) a melamine resin with a weight average molecular weight of 1,000 to 5,000, and (C) a diester compound represented by Formula (1); and a method for forming a multilayer coating film using this aqueous base coating composition.Type: GrantFiled: November 1, 2007Date of Patent: August 5, 2014Assignee: Kansai Paint Co., Ltd.Inventors: Yasuhiro Tomizaki, Hiroyuki Onoyama
-
Patent number: 8575259Abstract: The invention provides water-based paint compositions capable of forming coating film of excellent smoothness, distinctness of image, water resistance and chipping resistance, which comprise aqueous film-forming resin, curing agent and crosslinked resin particles having a core/shell type multilayer structure composed of the core part of a (co)polymer obtained by (co)polymerizing a monomer component comprising 30-100 mass % of polymerizable unsaturated monomer having C4-22 alkyl group and 0-70 mass % of other polymerizable unsaturated monomer, and the shell part having a crosslinked structure.Type: GrantFiled: December 12, 2008Date of Patent: November 5, 2013Assignee: Kansai Paint Co., Ltd.Inventors: Yasuhiro Tomizaki, Takuya Kawachi, Takahisa Ooya
-
Publication number: 20120305862Abstract: This invention provides a water-based primer composition comprising (A) an aqueous dispersion of modified polyolefin, (B) an aqueous urethane resin and/or aqueous acrylic resin, (C) a pyrazole-blocked polyisocyanate compound and (D) an electrically conducting pigment, its (C) pyrazole-blocked polyisocyanate compound content being within a range of 5-50 mass % based on the total solid content of the components (A), (B) and (C), said electrically conducting pigment (D) containing an electrically conducting metal oxide (D-1), and the content of the electrically conducting pigment (D) being within a range of 50-200 mass parts per 100 mass parts of the total solid resin content in the composition; and also methods for coating plastic shaped articles using the composition.Type: ApplicationFiled: February 3, 2011Publication date: December 6, 2012Inventors: Naoko Kasahara, Hideaki Katsuta, Yasuhiro Tomizaki, Kazutaka Ogura, Hiroshi Murata, Hironori Tonomura
-
Publication number: 20120302697Abstract: The problem to be solved by the present invention is to provide a coating composition that can reduce the heating temperature and shorten the heating time in the coating process, and that has excellent scratch resistance and weather resistance. The present invention provides a coating composition comprising a radically polymerizable unsaturated group-containing compound (A) and a hydroxyl-containing resin (B), the compound (A) being obtained by reacting a caprolactone-modified hydroxyalkyl (meth)acrylate with a polyisocyanate compound, and having an isocyanate equivalent of 300 to 3,800.Type: ApplicationFiled: September 15, 2010Publication date: November 29, 2012Inventors: Yuichi Inada, Mitsuru Kondoh, Genji Imai, Junpei Hashimoto, Masaharu Ishiguro, Yasuhiro Tomizaki
-
Publication number: 20110111242Abstract: The invention offers methods for forming multilayer coating film excelling in smoothness, distinctness of image, water resistance and chipping resistance, the methods comprising successively applying onto a coating object a water-based first coloring paint and a water-based second coloring paint, and simultaneously heating and curing the resultant first colored coating film and second colored coating film, in which the water-based first coloring paint comprises hydroxy-containing polyester resin, curing agent, and water-dispersible acrylic resin which is obtained by polymerization of a monomer component comprising 30-100 mass % of C5-22 alkyl-containing polymerizable unsaturated monomer and 0-70 mass % of polymerizable unsaturated monomer other than the C5-22 alkyl-containing polymerizable unsaturated monomer.Type: ApplicationFiled: June 24, 2009Publication date: May 12, 2011Inventors: Yasuhiro Tomizaki, Takuya Kawachi, Takahisa Ooya
-
Publication number: 20100255328Abstract: The invention provides water-based paint compositions capable of forming coating film of excellent smoothness, distinctness of image, water resistance and chipping resistance, which comprise aqueous film-forming resin, curing agent and crosslinked resin particles having a core/shell type multilayer structure composed of the core part of a (co)polymer obtained by (co)polymerizing a monomer component comprising 30-100 mass % of polymerizable unsaturated monomer having C4-22 alkyl group and 0-70 mass % of other polymerizable unsaturated monomer, and the shell part having a crosslinked structure.Type: ApplicationFiled: December 12, 2008Publication date: October 7, 2010Inventors: Yasuhiro Tomizaki, Takuya Kawachi, Takahisa Ooya
-
Publication number: 20090087667Abstract: The present invention offers a method for forming multilayer coating film excelling in coated appearance by coating water-based base coat paint and acid/epoxy curing type clear coat paint by 2-coat-1-bake system, wherein the water-based base coat paint contains specific water-soluble onium salt compound which is a curing catalyst of the clear coat paint.Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Inventors: Yasuhiro Tomizaki, Kojiro Kadowaki
-
Publication number: 20080206471Abstract: This invention provides coating compositions excelling in storage stability and curability, which comprise carboxyl group- and/or cyclic acid anhydride group-containing compound; polyepoxide; and latent curing catalyst composed of tertiary amine and acidic phosphoric acid ester.Type: ApplicationFiled: February 27, 2008Publication date: August 28, 2008Inventors: Yasuhiro Tomizaki, Takuya Kawachi, Kojiro Kadowaki
-
Publication number: 20080108743Abstract: The present invention provides an aqueous base coating composition comprising (A) a hydroxy-containing resin, (B) a melamine resin with a weight average molecular weight of 1,000 to 5,000, and (C) a diester compound represented by Formula (1); and a method for forming a multilayer coating film using this aqueous base coating composition.Type: ApplicationFiled: November 1, 2007Publication date: May 8, 2008Applicant: KANSAI PAINT CO., LTD.Inventors: Yasuhiro Tomizaki, Hiroyuki Onoyama
-
Patent number: 6645362Abstract: The present invention provides a method for forming a multi-layer paint film, comprising: applying a cationic electrodeposition paint containing a block polyisocyanate compound as a cross-linking agent on a surface of a painted matter, applying a water based intermediate coat paint containing a block polyisocyanate compound as a cross-linking agent on an electrodeposition paint film surface without curing the electrodeposition paint film to form an intermediate coat paint film, and then heating to cure both of the electrodeposition paint film and the intermediate coat paint film at the same time to thereby form a multi-layer paint film, wherein the above cationic electrodeposition paint contains a tin base catalyst of at lest 10 parts by weight per 100 parts by weight of the resin solid matter, and a cross-linking curing reaction in the electrodeposition paint film is controlled so that it starts earlier than a cross-linking curing reaction in the intermediate coat paint film.Type: GrantFiled: January 31, 2002Date of Patent: November 11, 2003Assignee: Kansai Paint Co., Ltd.Inventors: Yasuhiro Tomizaki, Akira Kasari, Takayoshi Hiraki
-
Patent number: 6645363Abstract: The present invention provides a method for forming a multi-layer paint film, comprising: applying a cationic electrodeposition paint containing a block polyisocyanate compound as a cross-linking agent on a surface of a painted matter, applying a water based intermediate coat paint containing a block polyisocyanate compound as a cross-linking agent on an electrodeposition paint film surface without curing the electrodeposition paint film to form an intermediate coat paint film, and then heating to cure both of the electrodeposition paint film and the intermediate coat paint film at the same time to thereby form a multi-layer paint film, wherein the above cationic electrodeposition paint contains a tin base catalyst of at least 10 parts by weight per 100 parts by weight of the resin solid matter, and a cross-linking curing reaction in the electrodeposition paint film is controlled so that it starts earlier than a cross-linking curing reaction in the intermediate coat paint film.Type: GrantFiled: April 5, 2002Date of Patent: November 11, 2003Assignee: Kansai Paint Co., Ltd.Inventors: Yasuhiro Tomizaki, Akira Kasari, Takayoshi Hiraki
-
Publication number: 20020136919Abstract: The present invention provides a method for forming a multi-layer paint film, comprising:Type: ApplicationFiled: April 5, 2002Publication date: September 26, 2002Inventors: Yasuhiro Tomizaki, Akira Kasari, Takayoshi Hiraki
-
Publication number: 20020104760Abstract: The present invention provides a method for forming a multi-layer paint film, comprising:Type: ApplicationFiled: January 31, 2002Publication date: August 8, 2002Inventors: Yasuhiro Tomizaki, Akira Kasari, Takayoshi Hiraki
-
Patent number: 6417277Abstract: The present invention provides a coating composition which is excellent in a curing property (particularly a low temperature curing property) of a coating film and which forms a coating film having excellent chipping resistance and adhesive property, and it comprises a hydroxyl group-containing resin (A), a cross-linking agent (B) and a phosphoric acid group-containing vinyl resin (C).Type: GrantFiled: September 27, 2000Date of Patent: July 9, 2002Assignee: Kansai Paint Co., Ltd.Inventors: Yasuhiro Tomizaki, Akira Kasari
-
Patent number: 6375820Abstract: The present invention provides a method for forming a multi-layer paint film, comprising: applying a cationic electrodeposition paint containing a block polyisocyanate compound as a cross-linking agent on a surface of a painted matter, applying a water based intermediate coat paint containing a block polyisocyanate compound as a cross-linking agent on an electrodeposition paint film surface without curing the electrodeposition paint film to form an intermediate coat paint film, and then heating to cure both of the electrodeposition paint film and the intermediate coat paint film at the same time to thereby form a multi-layer paint film.Type: GrantFiled: April 18, 2000Date of Patent: April 23, 2002Assignee: Kansai Paint Co., Ltd.Inventors: Yasuhiro Tomizaki, Akira Kasari, Takayoshi Hiraki
-
Patent number: 6346329Abstract: The present invention provides a curable resin composition with excellent low temperature curability and good storage stability, which comprises (A) a polyepoxide compound, (B) a curing agent containing at least one functional group selected from carboxyl group and acid anhydride group, and (C) a potential curing catalyst composed of a reaction product of an onium salt and diphenyl phosphate.Type: GrantFiled: March 31, 2000Date of Patent: February 12, 2002Assignee: Kansai Paint Co., Ltd.Inventor: Yasuhiro Tomizaki