Patents by Inventor Takahiro Mukuda

Takahiro Mukuda 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).

  • Publication number: 20200277447
    Abstract: Provided is a resin composition for producing a coating composition excellent in appearance, abrasion resistance, and hardness of a coating film. The resin composition of the present invention includes a compound A having a branched structure which has a terminal hydroxyl group, a polyisocyanate B, and an inorganic particle C, in which the inorganic particle C has a functional group enabling reacting with a hydroxyl group or an isocyanate group on a surface thereof.
    Type: Application
    Filed: May 20, 2020
    Publication date: September 3, 2020
    Applicant: Chiyoda-ku
    Inventors: Riina KANBARA, Takafumi ASAI, Masashi SERIZAWA, Takahiro MUKUDA, Yoshihiro KAMON
  • Publication number: 20200017613
    Abstract: Particles of an acrylic polymer comprising a constituent unit (A) derived from methyl methacrylate and a constituent unit (B) derived from a (meth)acrylic acid alkyl ester in which the alkyl group has 2 to 8 carbon atoms, wherein the particles having electrostatic buildup inhibition rate of 90 to 99.9° as obtained by a specific method.
    Type: Application
    Filed: September 25, 2019
    Publication date: January 16, 2020
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yoshikazu SAITO, Takahiro Mukuda, Hiroyuki Fukuoka, Makoto Moriya, Masaaki Kiura, Masashi Serizawa
  • Patent number: 10472433
    Abstract: Particles of an acrylic polymer comprising a constituent unit (A) derived from methyl methacrylic acid and a constituent unit (B) derived from a (meth)acrylic acid alkyl ester in which the alkyl group has 2 to 8 carbon atoms, wherein the particles having electrostatic buildup inhibition rate of 90 to 99.9%.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 12, 2019
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yoshikazu Saito, Takahiro Mukuda, Hiroyuki Fukuoka, Makoto Moriya, Masaaki Kiura, Masashi Serizawa
  • Publication number: 20180223015
    Abstract: Particles of an acrylic polymer comprising a constituent unit (A) derived from methyl methacrylic acid and a constituent unit (B) derived from a (meth)acrylic acid alkyl ester in which the alkyl group has 2 to 8 carbon atoms, wherein the particles having electrostatic buildup inhibition rate of 90 to 99.9%.
    Type: Application
    Filed: March 30, 2018
    Publication date: August 9, 2018
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yoshikazu SAITO, Takahiro MUKUDA, Hiroyuki FUKUOKA, Makoto MORIYA, Masaaki KIURA, Masashi SERIZAWA
  • Patent number: 8124702
    Abstract: A stabilizer containing a copolymer (A) obtained by polymerizing an unsaturated monomer mixture including 1 to 50 parts by mass of ethylenically unsaturated monomer (a) (formula (I)) having a piperidyl group in a molecule, 50 to 99 parts by mass of at least one monomer (b) (isobutyl methacrylate, an alkyl (meth)acrylate having an alkyl group with 6 to 13 carbon atoms, or an aromatic vinyl monomer), and 0 to 20 parts by mass of ethylenically unsaturated monomer (c) other than the monomers (a) and (b), where the total of the monomers (a), (b), and (c) is 100 parts by mass: wherein R1 represents H or an alkyl group having 1 to 2 carbon atoms, X represents an oxygen atom or an imino group, Y represents H or an alkyl or alkoxyl group each having 1 to 20 carbon atoms, and Z represents H or a cyano group.
    Type: Grant
    Filed: November 22, 2007
    Date of Patent: February 28, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Masaaki Kiura, Takahiro Mukuda
  • Patent number: 8048218
    Abstract: A coating comprising a polymer (I)-containing coating component and colloidal silica (II) of 60 nm or less average particle diameter, wherein 0.5 to 20 parts by mass, in terms of solid content, of colloidal silica (II) is contained per 100 parts by mass of polymer (I) and wherein the area of colloidal silica exposed from the surface of the coating occupies 35% or more based on the coating surface. This coating exhibits excellent antifouling performance and excels in transparency, weather resistance, water resistance, and elongation degree.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: November 1, 2011
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Junichi Nakamura, Motomi Tanaka, Mina Nomura, Hiroki Ishii, Yasutaka Doi, Takahiro Mukuda
  • Patent number: 7935772
    Abstract: Disclosed is a water-based resin composition containing a copolymer (A) which is obtained by carrying out emulsion polymerization of an unsaturated monomer composed of 0.5 to 50 parts by mass of a specific ethylenically unsaturated monomer (a) having a piperidyl group in a molecule and 50 to 99.5 parts by mass of an ethylenically unsaturated monomer (b), which does not substantially contain an ethylenically unsaturated monomer having a specific functional group in a molecule, with the total of the ethylenically unsaturated monomers (a) and (b) being 100 parts by mass, under the coexistence of 0.1 to 10 parts by mass of an emulsifier. Also disclosed are a weather resistance improver for water-based paints using the foregoing water-based resin composition, a weather resistance improver for thermoplastic resins, and a weather resistance improver for solvent-based paints.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: May 3, 2011
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Takahiro Mukuda, Masaaki Kiura, Motomi Tanaka
  • Publication number: 20100056675
    Abstract: Disclosed is a stabilizer capable of giving a high degree of thermal stability to a polypropylene resin (PP resin). Also disclosed is a PP resin composition to which the stabilizer is added having a high degree of stability.
    Type: Application
    Filed: November 22, 2007
    Publication date: March 4, 2010
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Masaaki Kiura, Takahiro Mukuda
  • Publication number: 20090105419
    Abstract: Disclosed is a water-based resin composition containing a copolymer (A) which is obtained by carrying out emulsion polymerization of an unsaturated monomer composed of 0.5 to 50 parts by mass of a specific ethylenically unsaturated monomer (a) having a piperidyl group in a molecule and 50 to 99.5 parts by mass of an ethylenically unsaturated monomer (b), which does not substantially contain an ethylenically unsaturated monomer having a specific functional group in a molecule, with the total of the ethylenically unsaturated monomers (a) and (b) being 100 parts by mass, under the coexistence of 0.1 to 10 parts by mass of an emulsifier. Also disclosed are a weather resistance improver for water-based paints using the foregoing water-based resin composition, a weather resistance improver for thermoplastic resins, and a weather resistance improver for solvent-based paints.
    Type: Application
    Filed: May 26, 2006
    Publication date: April 23, 2009
    Inventors: Takahiro Mukuda, Masaaki Kiura, Motomi Tanaka
  • Publication number: 20070129478
    Abstract: A coating comprsing a polymer (I)-containing coating component and colloidal. silica (II) of 60 nm or less average particle diameter, wherein 0.5 to 20 parts by mass, in terms of solid content, of colloidal silica (II) is contained per 100 parts by mass of polymer (I) and wherein the area of colloidal silica exposed from the surface of the coating occupies 35% or more based on the coating surface. This coating exhibits excellent antifouling performance and excels in transparency, weather resistance, water resistance, and elongation degree.
    Type: Application
    Filed: February 2, 2005
    Publication date: June 7, 2007
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Junichi Nakamura, Motomi Tanaka, Mina Nomura, Hiroki Ishii, Yasutaka Doi, Takahiro Mukuda