Patents by Inventor Shunichirou Kurihara

Shunichirou Kurihara 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).

  • Electrophotographic photoreceptor, and image forming device and electrophotographic photoreceptor cartridge using the same member cartridge
    Patent number: 8273509
    Abstract: To realize an electrophotographic photoreceptor excellent in abrasion resistance, the photosensitive layer of the photoreceptor comprises a polyester resin containing a repeating structural unit represented by the formula (1) and a hydrazone compound. (In the formula (1), Ar1 to Ar4 each represents, independently of each other, an arylene group which may have a substituent. X1 represents a bivalent group (including a single bond) and X2 represents a bivalent group (including a single bond) with 3 or less atoms.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: September 25, 2012
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yuka Nagao, Tadashi Mizushima, Masami Tsurumori, Tomoko Nakagawa, Hiroaki Takamura, Shunichirou Kurihara, Tooru Uenaka, Masayuki Hiroi
  • ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, IMAGE FORMING DEVICE USING SAME, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER CARTRIDGE
    Publication number: 20090232551
    Abstract: To realize an electrophotographic photoreceptor excellent in abrasion resistance, the photosensitive layer of the photoreceptor comprises a polyester resin containing a repeating structural unit represented by the formula (1) and a hydrazone compound. (In the formula (1), Ar1 to Ar4 each represents, independently of each other, an arylene group which may have a substituent. X1 represents a bivalent group (including a single bond) and X2 represents a bivalent group (including a single bond) with 3 or less atoms.
    Type: Application
    Filed: January 9, 2007
    Publication date: September 17, 2009
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yuka Nagao, Tadashi Mizushima, Masami Tsurumori, Tomoko Nakagawa, Hiroaki Takamura, Shunichirou Kurihara, Tooru Uenaka, Masayuki Hiroi