Patents by Inventor Noriyoshi Ogawa

Noriyoshi Ogawa 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: 20220389144
    Abstract: Provided is a curable resin composition which can be molded by casting to obtain composite materials each composed of a polycarbonate resin and an acrylic resin and having high transparency and high impact strength. More specifically, provided is a curing resin composition comprising an acrylic monomer having a saturated group, a polycarbonate resin having an unsaturated-group-containing terminal structure at a molecular end, and a free-radical polymerization initiator.
    Type: Application
    Filed: October 21, 2020
    Publication date: December 8, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyoshi OGAWA, Shun ISHIKAWA
  • Publication number: 20220306802
    Abstract: Provided is a polycarbonate resin having excellent solubility in low-boiling-point non-halogenated solvents and having a high glass transition temperature. The polycarbonate resin includes constituent units (A) represented by general formula (1) and constituent units (B) represented by general formula (2), the molar ratio of the constituent units (A) to the constituent units (B), A/B, being 45/55 to 95/5.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 29, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Toshihito GOTO, Noriyoshi OGAWA
  • Publication number: 20220289906
    Abstract: The present application provides a polycarbonate-based coating resin composition having high adhesiveness, more specifically provides a polycarbonate resin composition that contains not less than 0.1 parts by mass of a polyisocyanate compound and 100 parts by mass of a terminal-modified polycarbonate resin (A) having a structural unit (2) and a terminal structure represented by structural formula (1). [In formula (1) and formula (2), R1-R7, X, Y, Z, and a are as described in the description.
    Type: Application
    Filed: September 1, 2020
    Publication date: September 15, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kohei YOSHIYA, Noriyoshi OGAWA
  • Publication number: 20220177644
    Abstract: A terminally modified polycarbonate resin that has ultraviolet absorbing capability is provided. More specifically, the terminally modified polycarbonate resin has a structure represented by general formula (A) and a constituent unit that is derived from a dihydric phenol. (In general formula (A), R1 represents a hydrogen atom or an alkyl group having 1-6 carbon atoms; R2 represents an alkylene group having 1-6 carbon atoms; R3 represents a hydrogen atom or a methyl group; R4 represents a hydrogen atom or a halogen atom; and * represents the bonding position to the main chain of the polycarbonate resin.
    Type: Application
    Filed: March 30, 2020
    Publication date: June 9, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Shun ISHIKAWA, Noriyoshi OGAWA
  • Patent number: 11091666
    Abstract: The present invention addresses the problem of providing: a peelable coating composition for which peeling due to light impact or scratch after drying is effectively prevented while peeling easily in operations in which peeling is intended; and a coating film obtained by drying said composition. The problem is solved by an easy peel coating composition comprising a polycarbonate resin with structural units represented by general formula (1): (1) and a non-halogen-based organic solvent, wherein the content of the polycarbonate resin in the composition is 0.1-50 mass % and the proportion of structural units represented by general formula (2): (2) in the structural units represented by general formula (1) is 0-80% as a mole ratio.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: August 17, 2021
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Noriyoshi Ogawa
  • Patent number: 10711099
    Abstract: The present invention addresses the problem of providing an optical use polycarbonate resin composition which exhibits good fluidity, has a high refractive index, is inexpensive and exhibits impact resistance. This problem can be solved by an optical use polycarbonate resin composition that contains a polycarbonate resin (A) which contains a constituent unit represented by formula (1) and has an intrinsic viscosity of 0.320-0.630 dL/g, and polycarbonate resin (B) which contains a constituent unit represented by formula (2) and has an intrinsic viscosity of 0.320-0.600 dL/g, wherein the polycarbonate resin that contains a constituent unit represented by formula (2) is contained at a proportion of 45-75 mass %.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: July 14, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Noriyoshi Ogawa
  • Patent number: 10676566
    Abstract: The present invention can provide a polyarylate obtained from a dihydric phenol component and an aromatic dicarboxylic acid component. The polyarylate is characterized in that the dihydric phenol component contains a compound represented by general formula (A) or (B) as a primary raw material, and the pencil hardness of the polyarylate is H or higher. (In the formula, R1 and R2 each independently denote a hydrogen atom, an alkyl group having 1-6 carbon atoms or a phenyl group. However, neither R1 nor R1 represents a methyl group.) (In the formula, R3 and R4 each independently denote a hydrogen atom or a methyl group. In addition, a is an integer between 4 and 11. However, a is not 5 if R3 and R4 are both hydrogen atoms.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: June 9, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyoshi Ogawa, Hiroo Katagiri, Genki Sugiyama
  • Publication number: 20190359847
    Abstract: The present invention addresses the problem of providing: a peelable coating composition for which peeling due to light impact or scratch after drying is effectively prevented while peeling easily in operations in which peeling is intended; and a coating film obtained by drying said composition. The problem is solved by an easy peel coating composition comprising a polycarbonate resin with structural units represented by general formula (1): (1) and a non-halogen-based organic solvent, wherein the content of the polycarbonate resin in the composition is 0.1-50 mass % and the proportion of structural units represented by general formula (2): (2) in the structural units represented by general formula (1) is 0-80% as a mole ratio.
    Type: Application
    Filed: November 8, 2017
    Publication date: November 28, 2019
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Noriyoshi OGAWA
  • Publication number: 20190276596
    Abstract: The present invention addresses the problem of providing an optical use polycarbonate resin composition which exhibits good fluidity, has a high refractive index, is inexpensive and exhibits impact resistance. This problem can be solved by an optical use polycarbonate resin composition that contains a polycarbonate resin (A) which contains a constituent unit represented by formula (1) and has an intrinsic viscosity of 0.320-0.630 dL/g, and polycarbonate resin (B) which contains a constituent unit represented by formula (2) and has an intrinsic viscosity of 0.320-0.600 dL/g, wherein the polycarbonate resin that contains a constituent unit represented by formula (2) is contained at a proportion of 45-75 mass %.
    Type: Application
    Filed: April 7, 2017
    Publication date: September 12, 2019
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Noriyoshi OGAWA
  • Patent number: 10287394
    Abstract: The present invention can provide an injection-molded body for a vehicle, the injection-molded body having a terminal structure that is indicated by general formula (1) and containing a polycarbonate resin that has a viscosity-average molecular weight of 18,000-24,000.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: May 14, 2019
    Assignee: MITSUBUSHU GAS CHEMICAL COMPANY, INC.
    Inventors: Yuusuke Nii, Noriyoshi Ogawa
  • Publication number: 20190127520
    Abstract: The present invention can provide a polyarylate obtained from a dihydric phenol component and an aromatic dicarboxylic acid component. The polyarylate is characterized in that the dihydric phenol component contains a compound represented by general formula (A) or (B) as a primary raw material, and the pencil hardness of the polyarylate is H or higher. (In the formula, R1 and R2 each independently denote a hydrogen atom, an alkyl group having 1-6 carbon atoms or a phenyl group. However, neither R1 nor R1 represents a methyl group.) (In the formula, R3 and R4 each independently denote a hydrogen atom or a methyl group. In addition, a is an integer between 4 and 11. However, a is not 5 if R3 and R4 are both hydrogen atoms.
    Type: Application
    Filed: December 20, 2018
    Publication date: May 2, 2019
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyoshi OGAWA, Hiroo KATAGIRI, Genki SUGIYAMA
  • Patent number: 10202487
    Abstract: The present invention can provide a polyarylate obtained from a dihydric phenol component and an aromatic dicarboxylic acid component. The polyarylate is characterized in that the dihydric phenol component contains a compound represented by general formula (A) or (B) as a primary raw material, and the pencil hardness of the polyarylate is H or higher. (In the formula, R1 and R2 each independently denote a hydrogen atom, an alkyl group having 1-6 carbon atoms or a phenyl group. However, neither R1 nor R2 represents a methyl group.) (In the formula, R3 and R4 each independently denote a hydrogen atom or a methyl group. In addition, a is an integer between 4 and 11. However, a is not 5 if R3 and R4 are both hydrogen atoms.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: February 12, 2019
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyoshi Ogawa, Hiroo Katagiri, Genki Sugiyama
  • Publication number: 20180079861
    Abstract: The present invention can provide an injection-molded body for a vehicle, the injection-molded body having a terminal structure that is indicated by general formula (1) and containing a polycarbonate resin that has a viscosity-average molecular weight of 18,000-24,000.
    Type: Application
    Filed: March 28, 2016
    Publication date: March 22, 2018
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yuusuke NII, Noriyoshi OGAWA
  • Publication number: 20150337079
    Abstract: The present invention can provide a polyarylate obtained from a dihydric phenol component and an aromatic dicarboxylic acid component. The polyarylate is characterized in that the dihydric phenol component contains a compound represented by general formula (A) or (B) as a primary raw material, and the pencil hardness of the polyarylate is H or higher. (In the formula, R1 and R2 each independently denote a hydrogen atom, an alkyl group having 1-6 carbon atoms or a phenyl group. However, neither R1 nor R2 represents a methyl group.) (In the formula, R3 and R4 each independently denote a hydrogen atom or a methyl group. In addition, a is an integer between 4 and 11. However, a is not 5 if R3 and R4 are both hydrogen atoms.
    Type: Application
    Filed: January 21, 2014
    Publication date: November 26, 2015
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyoshi OGAWA, Hiroo KATAGIRI, Genki SUGIYAMA
  • Patent number: 9163157
    Abstract: The present invention relates to a multilayer laminated product which at least contains a layer formed of an acrylic resin composition containing an acrylic resin as a main component, and a specific terminally-modified polycarbonate resin. Moreover, the multilayer laminated product of the present invention has an excellent releasability and low frictional properties.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: October 20, 2015
    Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.
    Inventors: Masahiko Minemura, Noriyoshi Ogawa, Tatsuya Kanagawa
  • Patent number: 8900781
    Abstract: An electrophotographic photoreceptor belt which is excellent in durability and therefore little cracks even when fingerprints of an operator or hand cream adheres to the belt, wherein a binder resin for photosensitive layers comprising as the main component a polycarbonate resin which comprises bisphenol A type constituent units represented by the formula (I) as the main constituent unit (preferably in an amount of at least 90% by weight based on the whole of the constituent units) and which has a limiting viscosity of 1 to 1.6 dl/g and preferably a molecular weight distribution of 3.2 to 4.3 as calculated from the weight-average molecular weight and number-average molecular weight determined by GPC is used in a photosensitive layer (particularly carrier transport layer) of the belt.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: December 2, 2014
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventor: Noriyoshi Ogawa
  • Publication number: 20140242392
    Abstract: An acrylic resin composition containing an acrylic resin as a main component and a terminal-modified polycarbonate resin having terminal groups represented by the following formula (1): wherein each of R1 to R2 independently represents an alkylene group having 1-20 carbon atoms, each of R3 to R7 independently represents a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, an alkyl group having 1-9 carbon atoms, an aryl group having 6-12 carbon atoms, an alkenyl group having 2-5 carbon atoms, an alkoxy group having 1-5 carbon atoms or an aralkyl group having 7-17 carbon atoms, and “a” represents an integer of 1 to 1000.
    Type: Application
    Filed: May 8, 2014
    Publication date: August 28, 2014
    Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC Filsheet Co., Ltd.
    Inventors: Noriyoshi OGAWA, Tatsuya KANAGAWA
  • Patent number: 8450035
    Abstract: Disclosed is an electrophotographic photosensitive body which is remarkably improved in pencil scratch resistance and wear resistance. Specifically disclosed is an electrophotographic photosensitive body wherein a polycarbonate resin having a structural unit (1) represented by the formula below is used as a binder resin for a photosensitive layer (or for a charge-transporting layer in case of multilayer type) which is formed on a conductive base. [chemical formula 1] (1) (In the formula, R1-R30 respectively represent a hydrogen atom or a substituent selected from the group consisting of fluorine, chlorine, bromine, iodine, an alkyl group having 1-17 carbon atoms, an aryl group having 6-12 carbon atoms, an alkoxy group having 1-5 carbon atoms, an alkenyl group having 2-12 carbon atoms and an aralkyl group having 7-17 carbon atoms.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: May 28, 2013
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Noriyoshi Ogawa, Toru Oikawa
  • Publication number: 20120183780
    Abstract: An acrylic resin composition containing an acrylic resin as a main component and a terminal-modified polycarbonate resin having terminal groups represented by the following formula (1): wherein each of R1 to R2 independently represents an alkylene group having 1-20 carbon atoms, each of R3 to R7 independently represents a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, an alkyl group having 1-9 carbon atoms, an aryl group having 6-12 carbon atoms, an alkenyl group having 2-5 carbon atoms, an alkoxy group having 1-5 carbon atoms or an aralkyl group having 7-17 carbon atoms, and “a” represents an integer of 1 to 1000.
    Type: Application
    Filed: March 26, 2012
    Publication date: July 19, 2012
    Inventors: Noriyoshi OGAWA, Tatsuya Kanagawa
  • Patent number: 8137876
    Abstract: An electrophotographic photoreceptor which is excellent in wear resistance and crack resistance and has a long photoreceptor lifetime can be produced by using a polycarbonate resin composition prepared by blending 100 parts by weight of a polycarbonate resin with 0.01 to 5 parts by weight of a silicone-modified polyurethane obtained by reacting (a) a diol component represented by the general formula (I) with (b) an active hydrogen containing polysiloxane compound, (c) a polyisocyanate component and, if necessary, (d) a chain extender as the material for the backing film of a photoreceptor belt. [Chemical formula 1](I) wherein R1 and R2 are each independently hydrogen or alkyl; R3 is hydrogen, alkyl, alkoxy, halogeno or alkoxycarbonyl; M is a single bond, substituted or unsubstituted alkylene, or oxyalkylene; and n is an integer of 0 to 4.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: March 20, 2012
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventor: Noriyoshi Ogawa