Patents by Inventor Kazuko Nakazono

Kazuko Nakazono 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).

  • Diol, and polycarbonate resin or polyester resin
    Patent number: 9018339
    Abstract: A diol from which a resin material having high processability and a high refractive index can be manufactured, a polycarbonate resin and a polyester resin which is a polymer of the diol, and a molded article and an optical element formed of the polymer. The diol is represented by the general formula (1) shown below; the polycarbonate resin and the polyester resin are polymers thereof; and the molded article and the optical element are formed of the polymers, wherein R1 and R2 each independently denote one of a hydrogen atom and an alkyl group having 1 or more and 6 or less carbon atoms; Q denotes one of an oxyethylene group, a thioethylene group and a single bond.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: April 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumoto Hosokawa, Takahiro Kojima, Toshikazu Takata, Kazuko Nakazono, Yasuhiro Kohsaka, Yasuhito Koyama, Toshihide Hasegawa, Ryota Seto
  • Diol, and polycarbonate resin or polyester resin
    Patent number: 8735531
    Abstract: A diol from which a resin material having high processability and a high refractive index can be manufactured, a polycarbonate resin and a polyester resin which is a polymer of the diol, and a molded article and an optical element formed of the polymer. The diol is represented by the general formula (1) shown below; the polycarbonate resin and the polyester resin are polymers thereof; and the molded article and the optical element are formed of the polymers, wherein R1 and R2 each independently denote one of a hydrogen atom and an alkyl group having 1 or more and 6 or less carbon atoms; Q denotes one of an oxyethylene group, a thioethylene group and a single bond.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 27, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumoto Hosokawa, Takahiro Kojima, Toshikazu Takata, Kazuko Nakazono, Yasuhiro Kohsaka, Yasuhito Koyama, Toshihide Hasegawa, Ryota Seto
  • Rotaxane compound and antitumor agent
    Patent number: 8207357
    Abstract: An antitumor agent which is not easily excreted from tumor cells and is suitable for a topical treatment. Specifically disclosed is a rotaxane compound with contains a compound represented by chemical formula 1 as the base structure. (In chemical formula 1, m?2, n?3, and X represents an anionic molecule or an anionic atom.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: June 26, 2012
    Assignees: Wan Station Co., Ltd., Tokyo Institute of Technology, Fukuoka University, Kinki University
    Inventors: Toshikazu Takata, Yasuhito Koyama, Kazuko Nakazono, Toshihide Hasegawa, Young-Gi Lee, Nobufumi Ono, Kazuto Nishio, Yoshihiko Fujita
  • DIOL, AND POLYCARBONATE RESIN OR POLYESTER RESIN
    Publication number: 20110282025
    Abstract: A diol from which a resin material having high processability and a high refractive index can be manufactured, a polycarbonate resin and a polyester resin which is a polymer of the diol, and a molded article and an optical element formed of the polymer. The diol is represented by the general formula (1) shown below; the polycarbonate resin and the polyester resin are polymers thereof; and the molded article and the optical element are formed of the polymers, wherein R1 and R2 each independently denote one of a hydrogen atom and an alkyl group having 1 or more and 6 or less carbon atoms; Q denotes one of an oxyethylene group, a thioethylene group and a single bond.
    Type: Application
    Filed: March 10, 2010
    Publication date: November 17, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Katsumoto Hosokawa, Takahiro Kojima, Toshikazu Takata, Kazuko Nakazono, Yasuhiro Kohsaka, Yasuhito Koyama, Toshihide Hasegawa, Ryota Seto
  • ROTAXANE COMPOUND AND ANTITUMOR AGENT
    Publication number: 20110237807
    Abstract: An antitumor agent which is not easily excreted from tumor cells and is suitable for a topical treatment. Specifically disclosed is a rotaxane compound with contains a compound represented by chemical formula 1 as the base structure.
    Type: Application
    Filed: October 21, 2009
    Publication date: September 29, 2011
    Applicants: WAN STATION CO., LTD., TOKYO INSTITUTE OF TECHNOLOGY, FUKUOKA UNIVERSITY, KINKI UNIVERSITY
    Inventors: Toshikazu Takata, Yasuhito Koyama, Kazuko Nakazono, Toshihide Hasegawa, Young-Gi Lee, Nobufumi Ono, Kazuto Nishio, Yoshihiko Fujita