Patents by Inventor Shuichi Nakahara
Shuichi Nakahara 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).
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Patent number: 10975261Abstract: The problem to be solved by the present invention is to provide an aqueous coating composition having an excellent finished appearance, such as smoothness and distinctness of image, as well as metallic feel and no metallic mottling when the composition comprises an effect pigment; excellent coating film performance, such as water resistance; and excellent storage stability. The present invention provides an aqueous coating composition comprising (A) acrylic resin particles, (B) a water-soluble acrylic resin, and (C) a phosphoric acid compound represented by a specific formula and having hydrocarbon (and optionally polyoxyalkylene); and also provides a method for forming a coating film, comprising applying the aqueous coating composition, as well as an article coated with the aqueous coating composition.Type: GrantFiled: December 10, 2015Date of Patent: April 13, 2021Assignee: KANSAI PAINT CO., LTD.Inventors: Daisuke Takayama, Hironori Tonomura, Naoto Matsushima, Shuichi Nakahara
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Patent number: 10913868Abstract: The problem to be solved by the present invention is to provide an aqueous coating composition that can form a multilayer coating film having excellent storage stability, excellent adhesion to plastic base materials, excellent finish, and excellent coating film performance, such as water resistance; and to also provide a coating method using the composition. The present invention provides an aqueous coating composition comprising (A) an aqueous dispersion of a modified polyolefin, (B) an aqueous acrylic resin and/or an aqueous polyester resin, and (C) a phosphoric acid compound represented by a specific formula; and also provides a method for forming a coating film, comprising applying the aqueous coating composition, as well as an article coated with the aqueous coating composition.Type: GrantFiled: December 10, 2015Date of Patent: February 9, 2021Assignee: KANSAI PAINT CO., LTD.Inventors: Daisuke Takayama, Hironori Tonomura, Naoto Matsushima, Shuichi Nakahara
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Patent number: 10639672Abstract: The problem to be solved by the present invention is to provide a method for forming a multilayer coating film using a 3-coat 1-bake process, the method comprising sequentially applying an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition to a substrate and simultaneously heat-curing the resulting three layers to form a multilayer coating film having an excellent finished appearance, such as smoothness and distinctness of image, as well as metallic feel and no metallic mottling when the composition comprises an effect pigment, and exhibiting excellent coating film performance, such as water resistance.Type: GrantFiled: December 10, 2015Date of Patent: May 5, 2020Assignee: KANSAI PAINT CO., LTD.Inventors: Daisuke Takayama, Hironori Tonomura, Naoto Matsushima, Shuichi Nakahara
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Patent number: 10508212Abstract: The problem to be solved by the present invention is to provide a method for forming a multilayer coating film using a 3-coat 1-bake process, the method comprising sequentially applying an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition to a substrate and simultaneously heat-curing the resulting three layers to form a multilayer coating film having excellent smoothness and distinctness of image, as well as excellent coating film performance, such as water resistance.Type: GrantFiled: December 10, 2015Date of Patent: December 17, 2019Assignee: KANSAI PAINT CO., LTD.Inventors: Daisuke Takayama, Hironori Tonomura, Naoto Matsushima, Shuichi Nakahara
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Publication number: 20180021810Abstract: The problem to be solved by the present invention is to provide a method for forming a multilayer coating film using a 3-coat 1-bake process, the method comprising sequentially applying an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition to a substrate and simultaneously heat-curing the resulting three layers to form a multilayer coating film having an excellent finished appearance, such as smoothness and distinctness of image, as well as metallic feel and no metallic mottling when the composition comprises an effect pigment, and exhibiting excellent coating film performance, such as water resistance.Type: ApplicationFiled: December 10, 2015Publication date: January 25, 2018Applicant: KANSAI PAINT CO., LTD.Inventors: Daisuke TAKAYAMA, Hironori TONOMURA, Naoto MATSUSHIMA, Shuichi NAKAHARA
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Publication number: 20180016462Abstract: The problem to be solved by the present invention is to provide a method for forming a multilayer coating film using a 3-coat 1-bake process, the method comprising sequentially applying an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition to a substrate and simultaneously heat-curing the resulting three layers to form a multilayer coating film having excellent smoothness and distinctness of image, as well as excellent coating film performance, such as water resistance.Type: ApplicationFiled: December 10, 2015Publication date: January 18, 2018Applicant: KANSAI PAINT CO., LTD.Inventors: Daisuke TAKAYAMA, Hironori TONOMURA, Naoto MATSUSHIMA, Shuichi NAKAHARA
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Publication number: 20170369732Abstract: The problem to be solved by the present invention is to provide an aqueous coating composition having an excellent finished appearance, such as smoothness and distinctness of image, as well as metallic feel and no metallic mottling when the composition comprises an effect pigment; excellent coating film performance, such as water resistance; and excellent storage stability. The present invention provides an aqueous coating composition comprising (A) acrylic resin particles, (B) a water-soluble acrylic resin, and (C) a phosphoric acid compound represented by a specific formula and having hydrocarbon (and optionally polyoxyalkylene); and also provides a method for forming a coating film, comprising applying the aqueous coating composition, as well as an article coated with the aqueous coating composition.Type: ApplicationFiled: December 10, 2015Publication date: December 28, 2017Applicant: KANSAI PAINT CO., LTD.Inventors: Daisuke TAKAYAMA, Hironori TONOMURA, Naoto MATSUSHIMA, Shuichi NAKAHARA
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Publication number: 20170355863Abstract: The problem to be solved by the present invention is to provide an aqueous coating composition that can form a multilayer coating film having excellent storage stability, excellent adhesion to plastic base materials, excellent finish, and excellent coating film performance, such as water resistance; and to also provide a coating method using the composition. The present invention provides an aqueous coating composition comprising (A) an aqueous dispersion of a modified polyolefin, (B) an aqueous acrylic resin and/or an aqueous polyester resin, and (C) a phosphoric acid compound represented by a specific formula; and also provides a method for forming a coating film, comprising applying the aqueous coating composition, as well as an article coated with the aqueous coating composition.Type: ApplicationFiled: December 10, 2015Publication date: December 14, 2017Applicant: KANSAI PAINT CO., LTD.Inventors: Daisuke TAKAYAMA, Hironori TONOMURA, Naoto MATSUSHIMA, Shuichi NAKAHARA
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Patent number: 8906465Abstract: This invention provides a method for forming multilayer coating film excelling in smoothness and distinctness of image, by 3-coat-1-bake system in which a step of applying onto a coating object a water-based intermediate paint (X) to form an intermediate coating film; a step of adjusting the solid content of the intermediate coating film to 70-100 mass %; a step of applying onto the intermediate coating film a water-based base coating paint (Y) containing 30-55 mass parts of alcoholic solvent having a boiling point of 170-250° C., to form a base coating film; a step of adjusting the solid content of the base coating film to 70-100 mass %; a step of applying a clear paint (Z) comprising 40-60 mass parts of carboxyl-containing compound and 60-40 mass parts of polyepoxide onto the base coating film to form a clear coating film; and heating the intermediate coating film, base coating film and clear coating film at 100-120° C. for 3-10 minutes and thereafter further heating them at 130-160° C.Type: GrantFiled: July 18, 2008Date of Patent: December 9, 2014Assignees: Toyota Jidosha Kabushiki Kaisha, Kansai Paint Co., Ltd.Inventors: Junya Ogawa, Koji Kanagawa, Shuichi Nakahara, Tadashi Iida, Hiroyuki Nagano, Yoshizumi Matsuno, Yasushi Nakao
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Patent number: 8592000Abstract: This invention relates to a method of forming multilayer coating film of excellent appearance by 3-coat-1-bake system, comprising successively applying onto a coating object, a water-based intermediate paint, water-based base paint and a clear paint; and then simultaneously heat-curing the resulting 3-layered coating film.Type: GrantFiled: January 22, 2010Date of Patent: November 26, 2013Assignees: Kansai Paint Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Shuichi Nakahara, Hiroshi Murata, Yuta Nodera, Junya Ogawa, Yukinori Nasu
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Patent number: 8309229Abstract: The invention discloses specific polyester resins which are obtained by the technique of reacting polyesterpolyol oligomer of specific monomeric composition further with polyvalent carboxylic acid (anhydride) and the like; thermosetting water-borne coating compositions using the polyester resins, and coating film-forming methods using the thermosetting water-borne coating compositions.Type: GrantFiled: June 9, 2005Date of Patent: November 13, 2012Assignee: Kansai Paint Co., Ltd.Inventors: Shuichi Nakahara, Hiromi Harakawa
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Patent number: 8076413Abstract: The present invention provides an aqueous metallic coating composition comprising: (A) an aqueous film-forming resin; (B) a curing agent; (C) a phosphoric acid group-containing resin having an acid value of 10 to 200 mg KOH/g and obtained by copolymerizing a phosphoric acid group-containing polymerizable unsaturated monomer (a) represented by formula (1) with other polymerizable unsaturated monomer(s) (b); (D) a nitrogen-containing compound represented by formula (2); and (E) a metallic pigment. The present invention further provides a method for forming a multilayer coating film using the aqueous metallic coating composition.Type: GrantFiled: September 27, 2007Date of Patent: December 13, 2011Assignee: Kansai Paint Co., Ltd.Inventors: Nobuhiko Narita, Shuichi Nakahara, Hiroyuki Onoyama, Hironori Tonomura, Yasushi Nakao, Yoshizumi Matsuno
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Publication number: 20110135935Abstract: An object of the present invention is to provide a method of producing a multilayer coating film having excellent smoothness and high distinctness of image.Type: ApplicationFiled: August 10, 2009Publication date: June 9, 2011Inventors: Takato Adachi, Kazuaki Kitazono, Shuichi Nakahara
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Patent number: 7838076Abstract: The present invention discloses a thermosetting aqueous paint, comprising an oligomer (A-1), having a specific acid value, hydroxyl value and number average molecular weight, and obtained by reacting a compound having at least one hydroxyl group and at least one carboxyl group in a molecule thereof, a monoepoxide compound having a long-chain hydrocarbon group, and as necessary, a polyvalent carboxylic acid and/or polyvalent carboxylic acid anhydride, and/or a polyester resin (A-2) obtained by further reacting a polyvalent carboxylic acid and/or a polyvalent carboxylic acid anhydride and/or a polyisocyanate compound with the oligomer, and a crosslinking agent (B); and also discloses a method for forming a paint film using this paint.Type: GrantFiled: September 7, 2005Date of Patent: November 23, 2010Assignee: Kansai Paint Co., Ltd.Inventors: Shuichi Nakahara, Hiromi Harakawa
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Publication number: 20100129662Abstract: This invention provides a method for forming multilayer coating film excelling in smoothness and distinctness of image, by 3-coat-1-bake system in which a step of applying onto a coating object a water-based intermediate paint (X) to form an intermediate coating film; a step of adjusting the solid content of the intermediate coating film to 70-100 mass %; a step of applying onto the intermediate coating film a water-based base coating paint (Y) containing 30-55 mass parts of alcoholic solvent having a boiling point of 170-250° C., to form a base coating film; a step of adjusting the solid content of the base coating film to 70-100 mass %; a step of applying a clear paint (Z) comprising 40-60 mass parts of carboxyl-containing compound and 60-40 mass parts of polyepoxide onto the base coating film to form a clear coating film; and heating the intermediate coating film, base coating film and clear coating film at 100-120° C. for 3-10 minutes and thereafter further heating them at 130-160° C.Type: ApplicationFiled: July 18, 2008Publication date: May 27, 2010Inventors: Junya Ogawa, Koji Kanagawa, Shuichi Nakahara, Tadashi Iida, Hiroyuki Nagano, Yoshizumi Matsuno, Yasushi Nakao
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Publication number: 20090280256Abstract: The present invention provides an aqueous metallic coating composition comprising: (A) an aqueous film-forming resin; (B) a curing agent; (C) a phosphoric acid group-containing resin having an acid value of 10 to 200 mg KOH/g and obtained by copolymerizing a phosphoric acid group-containing polymerizable unsaturated monomer (a) represented by formula (1) with other polymerizable unsaturated monomer(s) (b); (D) a nitrogen-containing compound represented by formula (2); and (E) a metallic pigment. The present invention further provides a method for forming a multilayer coating film using the aqueous metallic coating composition.Type: ApplicationFiled: September 27, 2007Publication date: November 12, 2009Inventors: Nobuhiko Narita, Shuichi Nakahara, Hiroyuki Onoyama, Hironori Tonomura, Yasushi Nakao, Yoshizumi Matsuno
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Publication number: 20090197094Abstract: The invention discloses specific polyester resins which are obtained by the technique of reacting polyesterpolyol oligomer of specific monomeric composition further with polyvalent carboxylic acid (anhydride) and the like; thermosetting water-borne coating compositions using the polyester resins, and coating film-forming methods using the thermosetting water-borne coating compositions.Type: ApplicationFiled: June 9, 2005Publication date: August 6, 2009Inventors: Shuichi Nakahara, Hiromi Harakawa
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Patent number: 7514123Abstract: A white conductive primer coating composition comprising (a) 100 parts by total weight of a chlorinated polyolefin resin with a chlorine content of 10 to 40 wt. % and at least one modifier resin selected from the group consisting of acrylic resins, polyester resins and polyurethane resins, (b) 5 to 50 parts by weight of a crosslinking agent, and (c) 10 to 200 parts by weight of a white conductive powder comprising white inorganic pigment particles having a tin dioxide covering layer containing tungsten; and a method of forming a multilayer coating film using the composition.Type: GrantFiled: March 4, 2004Date of Patent: April 7, 2009Assignee: Kansai Paint Co., Ltd.Inventors: Hiroyuki Onoyama, Yasuyuki Kataoka, Shuichi Nakahara, Yoshizumi Matsuno
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Publication number: 20080095944Abstract: The present invention discloses a thermosetting aqueous paint, comprising an oligomer (A-1), having a specific acid value, hydroxyl value and number average molecular weight, and obtained by reacting a compound having at least one hydroxyl group and at least one carboxyl group in a molecule thereof, a monoepoxide compound having a long-chain hydrocarbon group, and as necessary, a polyvalent carboxylic acid and/or polyvalent carboxylic acid anhydride, and/or a polyester resin (A-2) obtained by further reacting a polyvalent carboxylic acid and/or a polyvalent carboxylic acid anhydride and/or a polyisocyanate compound with the oligomer, and a crosslinking agent (B); and also discloses a method for forming a paint film using this paint.Type: ApplicationFiled: September 7, 2005Publication date: April 24, 2008Inventors: Shuichi Nakahara, Hiromi Harakawa
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Patent number: 7150899Abstract: The present invention provides a method for forming a coating film on a plastic substrate which comprises: (1) coating the plastic substrate with an aqueous white primer (A) having a water content of 15 to 48 wt. % to form a coating film having an L* value of 80 or more, (2) heating the coating film of the primer (A) to adjust the water content of the film to 1 to 10 wt. % and the surface electrical resistivity value of the film to less than 109 ?/square, (3) electrostatically coating the coating film of the primer (A) with a thermosetting clear colored coating composition (B), (4) electrostatically coating the uncured coating film of the coating composition (B) with a thermosetting clear coating composition (C), and (5) baking the three-layer coating film to obtain a cured multilayer coating film having an N value of 8.5 or more.Type: GrantFiled: October 28, 2003Date of Patent: December 19, 2006Assignee: Kansai Paint Co., Ltd.Inventors: Hiroyuki Onoyama, Yasuyuki Kataoka, Shuichi Nakahara, Yoshizumi Matsuno