Patents by Inventor Minobu Iinuma

Minobu Iinuma 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).

  • Conductive roll
    Patent number: 9095870
    Abstract: The object of the present invention is to provide a conductive roll having high resistance to permanent set and high resistance to adhesion. The conductive roll 1 has a rubber elastic portion formed of a rubber material including a carbon-carbon double bond and exhibiting electric conductivity. The surface of the rubber elastic portion is exposed as the surface of the roll. An organic group including one or more groups selected from silicone groups and fluorine-containing groups is bonded through an isocyanuric acid skeleton to the surface of the rubber elastic portion. The organic group may be a group derived from an organic compound including one or more groups selected from silicone groups and fluorine-containing groups and having a carbon-carbon double bond.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: August 4, 2015
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Shinkichi Kashihara, Satoshi Tatsumi, Minobu Iinuma, Yosuke Hayashi, Koji Morihara
  • CONDUCTIVE ROLL
    Publication number: 20130053229
    Abstract: The object of the present invention is to provide a conductive roll having high resistance to permanent set and high resistance to adhesion. The conductive roll 1 has a rubber elastic portion formed of a rubber material including a carbon-carbon double bond and exhibiting electric conductivity. The surface of the rubber elastic portion is exposed as the surface of the roll. An organic group including one or more groups selected from silicone groups and fluorine-containing groups is bonded through an isocyanuric acid skeleton to the surface of the rubber elastic portion. The organic group may be a group derived from an organic compound including one or more groups selected from silicone groups and fluorine-containing groups and having a carbon-carbon double bond.
    Type: Application
    Filed: August 30, 2012
    Publication date: February 28, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Shinkichi Kashihara, Satoshi Tatsumi, Minobu Iinuma, Yosuke Hayashi, Koji Morihara
  • Electrically conductive polymer, semiconductive composition using the same and semiconductive member for electrophotographic equipment
    Patent number: 7309456
    Abstract: An electrically conductive polymer available at low-cost and superior both in electrical conductivity and solubility. The electrically conductive polymer is solvent soluble and is obtained by imparting electrical conductivity to a pi-electron conjugated polymer by means of a dopant; the dopant comprises an alkylbenzenesulfonic acid or its salt having 2 or more alkyl substituent groups, wherein a total carbon number of the alkyl substituent groups is 10 to 37.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: December 18, 2007
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Hitoshi Yoshikawa, Minobu Iinuma, Hiroki Sugiura
  • Electrically conductive polymer, semiconductive composition using the same and semiconductive member for electrophotographic equipment
    Publication number: 20050045856
    Abstract: An electrically conductive polymer available at low-cost and superior both in electrical conductivity and solubility. The electrically conductive polymer is solvent soluble and is obtained by imparting electrical conductivity to a pi-electron conjugated polymer by means of a dopant; the dopant comprises an alkylbenzenesulfonic acid or its salt having 2 or more alkyl substituent groups, wherein a total carbon number of the alkyl substituent groups is 10 to 37.
    Type: Application
    Filed: August 27, 2004
    Publication date: March 3, 2005
    Applicant: TOKAI RUBBER INDUSTRIES, LTD
    Inventors: Hitoshi Yoshikawa, Minobu Iinuma, Hiroki Sugiura