Patents by Inventor Masashi Serizawa

Masashi Serizawa 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: 11639423
    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: Grant
    Filed: May 20, 2020
    Date of Patent: May 2, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Riina Kanbara, Takafumi Asai, Masashi Serizawa, Takahiro Mukuda, Yoshihiro Kamon
  • Patent number: 11472893
    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: Grant
    Filed: September 25, 2019
    Date of Patent: October 18, 2022
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yoshikazu Saito, Takahiro Mukuda, Hiroyuki Fukuoka, Makoto Moriya, Masaaki Kiura, Masashi Serizawa
  • Patent number: 11427655
    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: Grant
    Filed: September 25, 2019
    Date of Patent: August 30, 2022
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yoshikazu Saito, Takahiro Mukuda, Hiroyuki Fukuoka, Makoto Moriya, Masaaki Kiura, Masashi Serizawa
  • Patent number: 11248065
    Abstract: An active energy ray-curable resin composition which contains (A) inorganic oxide particles each having an organic functional group on the surface, (B) a siloxane oligomer which has at least one functional group selected from the group consisting of a (meth)acryloyl group, an epoxy group and a vinyl group, while having a weight average molecular weight of 200-3,000, (C) a polyfunctional (meth)acrylate having a specific structure, (D) a urethane (meth)acrylate having two or more (meth)acryloyl groups in each molecule, and (E) an ultraviolet absorbent.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: February 15, 2022
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Akira Miyachi, Riina Kanbara, Masashi Serizawa
  • Patent number: 11021618
    Abstract: Provided are: a curable composition that makes it possible to form a cured film having excellent wear resistance and weather resistance; a laminate that is provided with the cured film; and an automobile headlamp lens. The curable composition makes it possible to obtain a cured film in which the relationship between a haze value (?Hx) that is obtained by a wear resistance test and a haze value (?Hy) that is obtained by a weather resistance test satisfies ?Hy??0.3 ?Hx+5.0 when a cured film having a thickness of 10 ?m is produced.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: June 1, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Jun Ito, Masashi Serizawa, Hiroyuki Satou, Akira Miyachi, Riina Kanbara
  • Publication number: 20210040340
    Abstract: Provided is a water-based ink which has high dispersibility of a pigment and imparts high smoothness and glossiness to a coating film obtainable from the water-based ink. Water-based ink of the present invention is a water-based ink containing a pigment, a vehicle, and water, in which the vehicle contains an alkali-soluble resin (I) and a composite resin (II), and the composite resin (II) is a composite resin of a urethane polymer (e) and an acrylic polymer (f).
    Type: Application
    Filed: September 16, 2020
    Publication date: February 11, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Etsu OU, Akira SATO, Shinsuke HARAGUCHI, Hiroshi TOKUE, Masashi SERIZAWA
  • 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: 20190112409
    Abstract: An active energy ray-curable resin composition which contains (A) inorganic oxide particles each having an organic functional group on the surface, (B) a siloxane oligomer which has at least one functional group selected from the group consisting of a (meth)acryloyl group, an epoxy group and a vinyl group, while having a weight average molecular weight of 200-3,000, (C) a polyfunctional (meth)acrylate having a specific structure, (D) a urethane (meth)acrylate having two or more (meth)acryloyl groups in each molecule, and (E) an ultraviolet absorbent.
    Type: Application
    Filed: December 12, 2018
    Publication date: April 18, 2019
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Akira MIYACHI, Riina KANBARA, 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: 9823563
    Abstract: To provide an alcohol compound containing fewer impurities at a high yield by conducting the following steps: a hydroboration process in which a reaction mixture is obtained by reacting in a solvent a compound represented by formula (C) and a boron agent selected from a group of diborane and borane complexes; and an oxidation process in which the pH of the reaction mixture is set at 0.5 to 4, which is conducted after treating the reaction mixture with hydrogen peroxide. In the formula, A1 to A6 are each independently a hydrogen atom, methyl group or ethyl group, and X is an oxygen atom, sulfur atom, methylene group or ethylene group.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: November 21, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Satoshi Sakuma, Masashi Serizawa, Atsushi Yasuda, Nobuhisa Yada, Shinichi Maeda
  • Publication number: 20170183515
    Abstract: Provided are: a curable composition that makes it possible to form a cured film having excellent wear resistance and weather resistance; a laminate that is provided with the cured film; and an automobile headlamp lens. The curable composition makes it possible to obtain a cured film in which the relationship between a haze value (?Hx) that is obtained by a wear resistance test and a haze value (?Hy) that is obtained by a weather resistance test satisfies ?Hy??0.3 ?Hx+5.0 when a cured film having a thickness of 10 ?m is produced.
    Type: Application
    Filed: March 30, 2015
    Publication date: June 29, 2017
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Jun ITO, Masashi SERIZAWA, Hiroyuki SATOU, Akira MIYACHI, Riina KANABARA
  • Publication number: 20140134539
    Abstract: To provide an alcohol compound containing fewer impurities at a high yield by conducting the following steps: a hydroboration process in which a reaction mixture is obtained by reacting in a solvent a compound represented by formula (C) and a boron agent selected from a group of diborane and borane complexes; and an oxidation process in which the pH of the reaction mixture is set at 0.5 to 4, which is conducted after treating the reaction mixture with hydrogen peroxide. In the formula, A1 to A6 are each independently a hydrogen atom, methyl group or ethyl group, and X is an oxygen atom, sulfur atom, methylene group or ethylene group.
    Type: Application
    Filed: June 14, 2012
    Publication date: May 15, 2014
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Satoshi Sakuma, Masashi Serizawa, Atsushi Yasuda, Nobushi Yada, Shinichi Maeda