Patents by Inventor Jichio Deguchi

Jichio Deguchi 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: 5985181
    Abstract: There is provided a semiconductive resin composition comprising the following components (A), (B), (D) and (E):(A) 5 to 100 parts by weight of a modified ethylene copolymer obtainable by subjecting an ethylene copolymer (a1) and a vinyl monomer (a2) to graft polymerization conditions,(B) 0.5 to 15 parts by weight of an unsaturated silane compound,(D) 10 to 110 parts by weight of carbon black, and(E) 0 to 95 parts by weight of an ethylene copolymer, provided that the amounts of the components shown above are based on 100 parts by weight in total of the components (A) and (E),wherein the component (B) is incorporated into the composition by subjecting the component (B) to melt graft reaction together with the component (A) and/or component (E) in the presence of 0.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: November 16, 1999
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yoshie Yoshida, Toshikazu Mizutani, Masaki Kitagawa, Jichio Deguchi
  • Patent number: 5945481
    Abstract: A case for memory disks having excellent antistatic properties, which comprises a thermoplastic resin composition comprising 100 parts by weight of the following component (A), 3 to 30 parts by weight of the following component (B) and 5 to 40 parts by weight of the following component (C):component (A): a crystalline propylene resin having a melt flow rate (MFR) of 1 to 80 g/10 min;component (B): a thermoplastic elastomer selected from (b.sup.1) olefin copolymer elastomers having a Mooney viscosity (ML.sub.1+4 (100.degree. C.)) of 10 to 85, and (b.sup.2) hydrogenated products of a block copolymer of styrene or a derivative thereof and a conjugated diene, containing 15 to 50% by weight of styrene or a derivative thereof, having a weight-average molecular weight of 50,000 to 220,000; andcomponent (C): an acrylamide copolymer.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: August 31, 1999
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Toshikazu Mizutani, Jichio Deguchi
  • Patent number: 5834559
    Abstract: A thermoplastic resin composition having excellent antistatic properties comprising 100 parts by weight of the following component (A), 3 to 30 parts by weight of the following component (B) and 5 to 40 parts by weight of the following component (C): component (A): a crystalline propylene resin having a melt flow rate (MFR) of 1 to 80 g/10 min; component (B): a thermoplastic elastomer selected from (b.sup.1) olefin copolymer elastomers having a Mooney viscosity (ML.sub.1+4 (100.degree. C.)) of 10 to 85, and (b.sup.2) hydrogenated products of a block copolymer of styrene or a derivative thereof and a conjugated diene, containing 15 to 50% by weight of styrene or a derivative thereof, having a weight-average molecular weight of 50,000 to 220,000; and component (C): an acrylamide copolymer.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: November 10, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Jichio Deguchi, Toshikazu Mizutani
  • Patent number: 5151324
    Abstract: Pattern coloring material for synthetic resins, comprising particulate matter of a cross-linked olefin polymer containing pigment, which is useful as a material for producing synthetic resin molded products with colored patterns. The material is produced by kneading crosslinkable olefin polymer with pigment, granulating the kneaded mixture and subjecting the particulate matter thereby obtained to a cross-linking treatment.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: September 29, 1992
    Assignees: Mitsubishi Petrochemical Co., Ltd., O.K.-Kasei Co., Ltd.
    Inventors: Tadashi Hanatani, Satoru Sanzen, Jichio Deguchi
  • Patent number: 4558094
    Abstract: Crosslinked product of a propylene resin having practically sufficient performances such as heat resistance, impact strength, rigidity, etc. is produced by exposing a composition to water or steam in the presence of a silanol condensation catalyst to effect crosslinking, the composition being comprised of (A) 60 to 90 wt % of a modified propylene resins with an ethylenically unsaturated silane compound grafted thereon, (B) 20 to 5 wt % of an ethylene resin and (C) 20 to 5 wt % of an ethylene-.alpha.-olefin copolymer rubber.
    Type: Grant
    Filed: December 15, 1983
    Date of Patent: December 10, 1985
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Jichio Deguchi, Takayuki Inoue