Patents by Inventor Hideko Akai

Hideko Akai 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).

  • Toner for the development of electrostatic image and process for the preparation thereof
    Publication number: 20020006569
    Abstract: The present invention provides a process for the preparation of a novel toner satisfying a high resolution, a low temperature fixability and a high offset resistance at a low cost. A novel toner for the development of an electrostatic image is provided comprising an agglomerate of particles containing at least primary polymer particles, wherein said primary polymer particles substantially comprise a wax encapsulated therein.
    Type: Application
    Filed: January 9, 2001
    Publication date: January 17, 2002
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hideko Akai, Noriaki Takahashi, Usei Jo, Tomohiro Yamazaki, Masahiro Nukui, Kazunori Maruyama, Takashi Kokubo
  • Polyester, process for producing the same and molding product therefrom
    Patent number: 5852164
    Abstract: A polyester comprises a dicarboxylic acid moiety comprising terephthalic acid or its ester forming derivative and a diol moiety comprising ethylene glycol and 1,4-cyclohexanedimethanol of 10 to 60 mol % based on the whole diol moiety, the intrinsic viscosity of the polyester being 0.68 to 0.95 dl/g, the "b" value of color tone of the produced pellets of polyester being -5 to 5, the number of the carboxylic acid terminals being not more than 30 eq/ton, and the sum of the numbers of the vinyl terminals, the vinylidene terminals and the methylcyclohexene terminals being not more than 25 eq/ton.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: December 22, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hideko Akai, Katsuji Tanaka, Masahiko Fujimoto, Noboru Sato