Patents by Inventor Isao Kuribayashi

Isao Kuribayashi 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).

  • HEAT-RESISTANT POLYOLEFIN-BASED MICROPOROUS MEMBRANE AND A METHOD FOR PREPARING THE SAME
    Publication number: 20220213306
    Abstract: A resin composition comprising 25 to 50% by mass of ultrahigh molecular weight polyethylene, 1 to 15% by mass of polyethylene, 35 to 65% by mass of a copolymer of 4-methyl-1-pentene with ?-olefin having 3 or more carbon atoms, 0.1 to 2% by mass of a hydrogenated polymer of one or more polymers selected from the group consisting of polybutadiene, polyisoprene and a butadiene-isoprene copolymer, and 0.5 to 5% by mas of a propylene-based elastomer. The resin composition provides a separator suitable for a lithium-ion secondary battery.
    Type: Application
    Filed: April 24, 2020
    Publication date: July 7, 2022
    Applicant: KEE Co., Ltd.
    Inventors: Isao KURIBAYASHI, Kazuishi SATO, Masao NISHIMURA
  • Secondary battery
    Patent number: 5631100
    Abstract: A secondary battery is comprising an organic electrolytic solution contained in a casing and, disposed therein, a positive electrode comprised of a lithium-containing composite metal oxide as a cathode active material and a negative electrode comprised of a carbonaceous material as an anode active material, wherein the positive and negative electrodes are separated through a separator disposed therebetween and wherein the organic electrolytic solution has a water content of from 5 ppm to 450 ppm.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: May 20, 1997
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Akira Yoshino, Yumiko Takizawa, Akira Koyama, Katsuhiko Inoue, Masataka Yamashita, Yasufumi Minato, Isao Kuribayashi
  • Polyphenylene ether compositions
    Patent number: 4543391
    Abstract: Polyphenylene ether compositions having enhanced commercial value as engineering resin, which are excellent in the appearance characteristics, such as surface gloss and weld part beauty, and stress crack resistance. The present resin composition is composed of a polyether resin (PPE) and a rubber reinforced high impact polystyrene (HIPS), if desired, together with a vinyl aromatic compound resin, wherein the PPE has specific characteristics with respect to the intrinsic viscosity, the eluting amount, and others.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: September 24, 1985
    Assignee: Asahi-Dow Limited
    Inventors: Isao Kuribayashi, Kunio Fukuda
  • Aromatic polyether resin composition
    Patent number: 4299757
    Abstract: A graft copolymer having a styrene polymer grafted onto a trunk polymer consituted of (a) hydrogenated block copolymer of a styrene compound and a diene compound and (b) an olefinic polymer or copolymer is blended with a polyphenylene ether type resin to give a resin composition reduced in anisotropy and having good oil resistance and mechanical properties.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: November 10, 1981
    Assignee: Asahi-Dow Limited
    Inventors: Isao Kuribayashi, Jurou Ohzeki, Kiyoshi Shimamura