Patents by Inventor Nobushige Numa
Nobushige Numa 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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Publication number: 20210261792Abstract: An antibacterial coated product includes, on a base material, a coating film of an antibacterial coating material that contains at least composite ceramic powders containing a photocatalytic component, adsorbent component, and metal component, and a binder, wherein the antibacterial activity (JIS Z 2801:2010) of the coating film is 2.0 or higher and the requirement(s) of (1) and/or (2) below is/are satisfied: (1) with respect to the composite ceramic powder in the antibacterial coating material, the volume average dispersed particle diameter (D50) is 250 nm or smaller, and the ratio of the 90% cumulative volume particle diameter (D90) and the volume average dispersed particle diameter (D50), or D90/D50, is 1.5 or lower; and (2) the thickness of the coating film is 80 ?m or smaller and the haze (JIS K 7136:2000) of the antibacterial coated product or coating film is 25 or lower.Type: ApplicationFiled: June 11, 2020Publication date: August 26, 2021Inventors: Kaname KUBOI, Nobushige NUMA, Kaoru SHIBATA
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Patent number: 6780902Abstract: The present invention provides an aqueous coating composition comprising a carboxyl-containing, acrylic-modified polyester resin (B) neutralized and dispersed in an aqueous medium, the polyester resin (B) being obtainable by reacting a carboxyl-containing acrylic resin (c) with an epoxy-modified polyester resin (A) prepared by esterification of a carboxyl-containing polyester resin (a) having a number average molecular weight of 1,000 to 30,000 and an acid value of 5 to 200 mg KOH/g with a 1,2-epoxy-containing low-molecular-weight epoxy compound (b) having a number average molecular weight of 1,200 or less.Type: GrantFiled: June 24, 2002Date of Patent: August 24, 2004Assignee: Kansai Paint Co., Ltd.Inventors: Yuji Hirose, Noboru Nakai, Reiziro Nishida, Nobushige Numa
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Patent number: 6706818Abstract: This invention provides a curable resin composition for one-pack type water-based paint which is readily cured regardless of coating environment, said resin composition comprising copolymer (I) which is produced by the copolymerization of unsaturated group-containing urethane prepolymer (A) which is obtained from a reaction of diisocyanate compound (a), glycol compound (b), carboxyl group-containing glycol compound (c) and hydroxyl group-containing ethylenically unsaturated monomer (d), with maleimide group-containing ethylenically unsaturated monomer (e), carbonyl group-containing ethylenically unsaturated monomer (f) and another ethylenically unsaturated monomer (g), and compound (II) which has, per molecule, two or more same or different functional groups selected from hydrazide group, semicarbazide group and hydrazone groupType: GrantFiled: May 30, 2002Date of Patent: March 16, 2004Assignee: Kansai Paint Co., Ltd.Inventors: Yushichi Ishihara, Masami Sugishima, Nobushige Numa, Mitsutaka Hasegawa, Hiroshi Inukai
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Patent number: 6686399Abstract: Processes for producing within a short time transparent alkyd resins which are substantially free of occurrence of foreign matters or filtration residues are disclosed, which comprise depolymerizing polyester resins whose chief starting material is terephthalic acid and which have been recovered from waste materials and regenerated, with use of a polyhydric alcohol component having tetra- or higher hydric alcohol, and thereafter adding thereto a polybasic acid component (and if necessary a fatty acid component) to effect an esterification reaction.Type: GrantFiled: February 28, 2002Date of Patent: February 3, 2004Assignee: Kansai Paint Co., Ltd.Inventors: Chicara Kawamura, Kei Ito, Ichiro Yoshihara, Nobushige Numa
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Publication number: 20030139496Abstract: This invention provides a curable resin composition for one-pack type water-based paint which is readily cured regardless of coating environment, said resin composition characteristically comprising both copolymer (I) which is produced from the emulsion polymerization of 1 to 30 % by weight of maleimide group-containing ethylenically unsaturated monomer (a), 1 to 30 % by weight of carbonyl group-containing ethylenically unsaturated monomer (b), 0.01 to 2 % by weight of compound (c) having two or more polymerizable unsaturated group per molecule and 38 to 97.99 % by weight of another ethylenically unsaturated monomer (d), and compound (II) which has, per molecule, two or more same or different functional groups selected from hydrazide group, semicarbazide group and hydrazone group.Type: ApplicationFiled: May 30, 2002Publication date: July 24, 2003Inventors: Masami Sugishima, Nobushige Numa, Keiichiro Saikawa, Mitsutaka Hasegawa, Hiroshi Inukai
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Publication number: 20030125471Abstract: This invention provides a curable resin composition for one-pack type water-based paint which is readily cured regardless of coating environment, said resin composition comprising copolymer (I) which is produced by the copolymerization of unsaturated group-containing urethane prepolymer (A) which is obtained from a reaction of diisocyanate compound (a), glycol compound (b), carboxyl group-containing glycol compound (c) and hydroxyl group-containing ethylenically unsaturated monomer (d), with maleimide group-containing ethylenically unsaturated monomer (e), carbonyl group-containing ethylenically unsaturated monomer (f) and another ethylenically unsaturated monomer (g), and compound (II) which has, per molecule, two or more same or different functional groups selected from hydrazide group, semicarbazide group and hydrazone groupType: ApplicationFiled: May 30, 2002Publication date: July 3, 2003Inventors: Yushichi Ishihara, Masami Sugishima, Nobushige Numa, Mitsutaka Hasegawa, Hiroshi Inukai
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Patent number: 6559231Abstract: The present invention relates to a curing type water base resin composition comprising: (I) a copolymer obtained by copolymerizing an ethylenically unsaturated monomer (a) having a maleimide group, an ethylenically unsaturated monomer (b) having a carbonyl group and other ethylenically unsaturated monomer (c) and (II) a compound having two or more groups per molecule which are the same or different and selected from a hydrazide group, a semicarbazide group and hydrazone group and further comprising, if necessary, as an additional component: (III) a copolymer having a carbonyl group and/or (IV) a water base polyurethane resin having a carbonyl group or a hydrazine group.Type: GrantFiled: November 30, 2001Date of Patent: May 6, 2003Assignee: Kansai Paint Co., Ltd.Inventors: Mitsutaka Hasegawa, Hiroshi Inukai, Eiichi Okazaki, Nobushige Numa, Masami Sugishima, Koki Nakamura, Keiichiro Saikawa, Yushichi Ishihara
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Publication number: 20030065068Abstract: The present invention provides a curable resin composition for a water base coating material comprising:Type: ApplicationFiled: May 30, 2002Publication date: April 3, 2003Inventors: Hiroshi Inukai, Mitsutaka Hasegawa, Nobushige Numa, Masami Sugishima, Koki Nakamura
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Publication number: 20030004230Abstract: The present invention provides an aqueous coating composition comprising a carboxyl-containing, acrylic-modified polyester resin (B) neutralized and dispersed in an aqueous medium, the polyester resin (B) being obtainable by reacting a carboxyl-containing acrylic resin (c) with an epoxy-modified polyester resin (A) prepared by esterification of a carboxyl-containing polyester resin (a) having a number average molecular weight of 1,000 to 30,000 and an acid value of 5 to 200 mg KOH/g with a 1,2-epoxy-containing low-molecular-weight epoxy compound (b) having a number average molecular weight of 1,200 or less.Type: ApplicationFiled: June 24, 2002Publication date: January 2, 2003Inventors: Yuji Hirose, Noburo Nakai, Reiziro Nishida, Nobushige Numa
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Publication number: 20020128379Abstract: The present invention relates to a curing type water base resin composition comprising:Type: ApplicationFiled: November 30, 2001Publication date: September 12, 2002Inventors: Mitsutaka Hasegawa, Hiroshi Inukai, Eiichi Okazaki, Nobushige Numa, Masami Sugishima, Koki Nakamura, Keiichiro Saikawa, Yushichi Ishihara
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Patent number: 6268429Abstract: The present invention provides an aqueous coating comprising: (A) a resin having hydroxyl group and carboxyl group in the molecule, (B) an alkyl-etherified methylolmelamine resin, and (C) an oxazoline group-containing compound. This aqueous coating can alleviate the problems of conventional aqueous coatings comprising (a) a resin having hydroxyl group and carboxyl group and (b) an alkyl-etherified methylolmelamine resin.Type: GrantFiled: January 13, 2000Date of Patent: July 31, 2001Assignee: Kansai Paint Co., Ltd.Inventors: Masaru Mitsuji, Nobushige Numa, Yugen Kawamoto
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Patent number: 6211301Abstract: Antifouling resins and methods for the production of an antifouling resin comprising reacting (i) a base resin (A) simultaneously comprising a carboxyl group and a group having a polyalkylene glycol structure represented by the formula (I) &Parenopenst;CmH2mO&Parenclosest;n R1 (I) wherein R1 is a hydrogen atom or a straight chain, branched, or cyclic alkyl group or an aralkyl group, m is 1, 2, 3, or 4, and n is an integer of not less than 1 and not more than 100 in the molecular unit, with (ii) the oxide or hydroxide of a metallic atom having a valence of not less than 2 in the presence of present water in an amount of 1-30 wt. %, based on the weight of said base resin (A).Type: GrantFiled: September 3, 1998Date of Patent: April 3, 2001Assignee: Kansai Paint Co., LTDInventors: Shinichi Ogino, Nobushige Numa
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Patent number: 6133380Abstract: An antifouling resinous composition comprising as an active component thereof one or more resins represented by the formulasFormula (1)R.sub.p --COO--M--(--o--M--).sub.m --OHFormula (2)R.sub.p --COO--M--(--O--M--).sub.n --OOC--R.sub.pFormula (3) ##STR1## wherein R.sub.p represents a basal resin, M represents in each occurrence the same or different divalent metallic atom, m represents an integer in the range of 1-10, n represents an integer in the range of 0-10, and k represents an integer in the range of 0-10, and contains a metal carboxylate in the molecular unit.Type: GrantFiled: February 12, 1998Date of Patent: October 17, 2000Assignee: Kansai Paint Co., LtdInventors: Koji Yamada, Nobushige Numa
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Patent number: 6072008Abstract: A resin composition for use in a coating composition comprising (A) a base resin having a hydroxyl value of 20 to 200, (B) a silicone compound consisting of a partial hydrolysis.condensation product of (i) an organofunctional group-containing alkoxysilane compound containing at least one organofunctional group selected from the group consisting of mercapto group, epoxy group, (meth)acryloyl group, vinyl group, haloalkyl group and amino group, (ii) a tetraalkoxysilane compound and preferably (iii) a trialkoxysilane compound, and (C) a reaction product prepared by partly reacting the hydroxyl group in the base resin (A) with alkoxysilyl group in the silicone compound (B).Type: GrantFiled: December 10, 1998Date of Patent: June 6, 2000Assignee: Kansai Paint Co., Ltd.Inventors: Yoshizumi Matsuno, Nobushige Numa
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Patent number: 6060554Abstract: The present invention provides an aqueous coating comprising:(A) a resin having hydroxyl group and carboxyl group in the molecule,(B) an alkyl-etherified methylolmelamine resin, and(C) an oxazoline group-containing compound.This aqueous coating can alleviate the problems of conventional aqueous coatings comprising (a) a resin having hydroxyl group and carboxyl group and (b) an alkyl-etherified methylolmelamine resin.Type: GrantFiled: January 22, 1998Date of Patent: May 9, 2000Assignee: Kansai Paint Co., Ltd.Inventors: Masaru Mitsuji, Nobushige Numa, Yugen Kawamoto
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Patent number: 6025449Abstract: A water-soluble acrylic resin which is prepared by neutralizing with a neutralizing agent an acrylic copolymer formed by copolymerizing (a) an alkylene oxide group-containing (meth)acrylate, (b) a cyclic saturated hydrocarbon group-containing (meth)acrylate, (c) a hydroxyl group-containing unsaturated monomer other than the monomer (a), and (d) other unsaturated monomer; a resin composition used for a water-based coating composition and containing, as a vehicle component, the above water-soluble acrylic resin; a water-based coating composition containing, as major components, (A) at Least one resin selected from the group consisting of a water-soluble resin and a water-dispersible resin and (B) a pigment, said pigment (B) being subjected to dispersion treatment; with a water-soluble acrylic resin (C), which is prepared by neutralizing with a neutralizing agent an acrylic copolymer formed by copolymerizing (a) an alkylene oxide group-containing (meth)acrylate, (b) a cyclic saturated hydrocarbon group-containinType: GrantFiled: February 27, 1998Date of Patent: February 15, 2000Assignee: Kansai Paint Co., Ltd.Inventors: Masashi Enomoto, Nobushige Numa, Tomokuni Ihara, Hirofumi Fukuyama, Hajime Sukejima, Hiroto Takeuchi
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Patent number: 5998507Abstract: A method for preparing a thermosetting powder coating material comprising: dispersing and mixing a base resin and a crosslinking agent in a dispersing and/or mixing machine equipped with a decompression device at a temperature in the range of 40 to 200.degree. C., to form a dispersed mixture, the dispersed mixture optionally containing a solvent and a pigment; optionally eliminating at least a portion of the solvent under reduced pressure; adding water to the dispersed mixture; reducing the pressure and lowering the temperature of the dispersed mixture to a temperature equal to or less than the softening point of the dispersed mixture; and bringing the dispersed mixture into a powder state or a granule state by dispersion force of the dispersing and/or mixing machine.Type: GrantFiled: May 13, 1998Date of Patent: December 7, 1999Assignee: Kansai Paint Co., Ltd.Inventors: Takato Adachi, Nobushige Numa
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Patent number: 5929158Abstract: The invention provides a non-aqueous polymer dispersion wherein a particulate polymer is dispersed in an organic solvent containing a dispersion stabilizer resin, the polymer being insoluble to the organic solvent and containing a fluoroalkyl group-containing (meth)acrylate as a monomer component. The invention further provides a curable composition comprising the non-aqueous polymer dispersion, a hydroxyl group containing resin and at least one crosslinking agent selected from the group consisting of amino resins, tris(alkoxycarbonylamino)triazines, polyisocyanate compounds and blocked polyisocyanate compounds. A highly stain-resistant coating film can be formed using the dispersion or composition of the invention.Type: GrantFiled: May 5, 1998Date of Patent: July 27, 1999Assignee: Kansai Paint Company, LimitedInventors: Yoshizumi Matsuno, Nobushige Numa, Chihiro Nagano, Satoshi Ikushima, Yasumasa Okumura
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Patent number: 5886082Abstract: An aqueous coating composition comprising, as main components,(A) an aqueous dispersion of a water-dispersible acrylic copolymer of acid value 20-150 optionally having hydroxyl group, which copolymer is obtained by copolymerizing an alkoxysilane group-containing vinyl monomer with a carboxyl group-containing unsaturated monomer and, as necessary, other polymerizable monomer copolymerizable with said monomers,(B) an aqueous polyurethane resin, and optionally(C) a polyisocyanate compound.With this composition, there can be formed, on a substrate, a coating film which is excellent in water resistance and solvent resistance and which is good in adhesivity, finish of film, etc.Type: GrantFiled: April 3, 1996Date of Patent: March 23, 1999Assignee: Kansai Paint Co., Ltd.Inventors: Nobushige Numa, Yoshihiro Okamoto
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Patent number: 5763535Abstract: A process for production of a powder coating comprising: copolymerizing a monomer mixture comprising a (meth)acrylate monomer having branched or cyclic substituents of four or more carbon atoms in its side chain and a (meth)acrylate monomer having functional groups to form a thermosetting vinyl copolymer (a) having a glass transition temperature of approximately 40.degree. to 100.degree. C. and a number average molecular weight of approximately 1,000 to 10,000; dissolving or dispersing said copolymer (a) and a crosslinking agent (b) in a solvent comprising approximately at least 50% by weight based on the weight of the solvent, of tert-butanol, to form a resulting coating solution having a melting point of not less than approximately -30.degree. C.; and lyophilizing said coating solution under a pressure not higher than approximately 50 mmHg.Type: GrantFiled: March 17, 1997Date of Patent: June 9, 1998Assignee: Kansai Paint Co., Ltd.Inventors: Takato Adachi, Nobushige Numa