Patents by Inventor Mayuko Kodama

Mayuko Kodama 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).

  • Blade for electrophotographic apparatus
    Patent number: 7619052
    Abstract: A blade for electrophotographic apparatus which has a blade member formed of a polyurethane resin, wherein the polyurethane resin is a resin produced by using a polyurethane raw-material composition containing at least the following components (A) to (E): (A) a polyisocyanate; (B) a polyol having a number average molecular weight of 2,000 or more and 4,000 or less; (C) a chain extender having a molecular weight of 200 or less: (D) a polyol having a number average molecular weight which is smaller than the number average molecular weight of the component-(B) polyol and is larger than the molecular weight of the component-(C) chain extender; and (E) a urethane curing catalyst.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: November 17, 2009
    Assignee: Canon Kasei Kabushiki Kaisha
    Inventors: Shouji Inoue, Taku Hatanaka, Kenichi Mochizuki, Mayuko Kodama
  • Blade for electrophotographic apparatus
    Publication number: 20060229425
    Abstract: A blade for electrophotographic apparatus which has a blade member formed of a polyurethane resin, wherein the polyurethane resin is a resin produced by using a polyurethane raw-material composition containing at least the following components (A) to (E): (A) a polyisocyanate; (B) a polyol having a number average molecular weight of 2,000 or more and 4,000 or less; (C) a chain extender having a molecular weight of 200 or less: (D) a polyol having a number average molecular weight which is smaller than the number average molecular weight of the component-(B) polyol and is larger than the molecular weight of the component-(C) chain extender; and (E) a urethane curing catalyst.
    Type: Application
    Filed: March 24, 2006
    Publication date: October 12, 2006
    Applicant: Canon Kasei Kabushiki Kaisha
    Inventors: Shouji Inoue, Taku Hatanaka, Kenichi Mochizuki, Mayuko Kodama