Patents by Inventor Kazuya Nakamichi

Kazuya Nakamichi 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).

  • Patent number: 7048995
    Abstract: A polyester resin produced by polycondensing a dicarboxylic acid component containing an aromatic dicarboxylic acid or its ester-forming derivative as the main component and a diol component containing ethylene glycol as the main component in the presence of at least an antimony compound and a phosphorus compound, via an esterification reaction or an ester exchange reaction, which is characterized in that the amount of antimony eluted when immersed in hot water of 95° C. for 60 minutes in the form of particles having a number average particle weight of 24 mg, is not more than 1 ?g per 1 g of the polyester resin, as antimony atoms (Sb).
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: May 23, 2006
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yoshihiro Fujimori, Kiyotoshi Fujioka, Masahiro Nukui, Yutaka Yatsugi, Kazuya Nakamichi, Noboru Satou, Toshio Kambe, Hirotsugu Niwa
  • Publication number: 20040086733
    Abstract: A polyester resin produced by polycondensing a dicarboxylic acid component containing an aromatic dicarboxylic acid or its ester-forming derivative as the main component and a diol component containing ethylene glycol as the main component in the presence of at least an antimony compound and a phosphorus compound, via an esterification reaction or an ester exchange reaction, which is characterized in that the amount of antimony eluted when immersed in hot water of 95° C. for 60 minutes in the form of particles having a number average particle weight of 24 mg, is not more than 1 &mgr;g per 1 g of the polyester resin, as antimony atoms (Sb).
    Type: Application
    Filed: August 21, 2003
    Publication date: May 6, 2004
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yoshihiro Fujimori, Kiyotoshi Fujioka, Masahiro Nukui, Yutaka Yatsugi, Kazuya Nakamichi, Noboru Satou, Toshio Kambe, Hirotsuga Niwa
  • Patent number: 6703474
    Abstract: A polyester resin produced by polycondensing a dicarboxylic acid component containing an aromatic dicarboxylic acid or its ester-forming derivative as the main component and a diol component containing ethylene glycol as the main component in the presence of at least an antimony compound and a phosphorus compound, via an esterification reaction or an ester exchange reaction, which is characterized in that the amount of antimony eluted when immersed in hot water of 95° C. for 60 minutes in the form of particles having a number average particle weight of 24 mg, is not more than 1 &mgr;g per 1 g of the polyester resin, as antimony atoms (Sb).
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: March 9, 2004
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yoshihiro Fujimori, Kiyotoshi Fujioka, Masahiro Nukui, Yutaka Yatsugi, Kazuya Nakamichi, Noboru Satou
  • Publication number: 20030144459
    Abstract: A polyester resin produced by polycondensing a dicarboxylic acid component containing an aromatic dicarboxylic acid or its ester-forming derivative as the main component and a diol component containing ethylene glycol as the main component in the presence of at least an antimony compound and a phosphorus compound, via an esterification reaction or an ester exchange reaction, which is characterized in that the amount of antimony eluted when immersed in hot water of 95° C. for 60 minutes in the form of particles having a number average particle weight of 24 mg, is not more than 1 &mgr;g per 1 g of the polyester resin, as antimony atoms (Sb).
    Type: Application
    Filed: September 24, 2002
    Publication date: July 31, 2003
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yoshihiro Fujimori, Kiyotoshi Fujioka, Masahiro Nukui, Yutaka Yatsugi, Kazuya Nakamichi, Noboru Satou, Toshio Kambe, Hirotsugu Niwa
  • Patent number: 4560807
    Abstract: A process for producing dimethyl ether useful as a propellant by dehydrating methanol and recovering dimethyl ether from the dehydrated product by distillation, which comprises(A) a reaction step wherein the dehydration reaction of methanol is conducted in a vapor phase under pressure of from 2 to 50 kg/cm.sup.2 G in the presence of a solid acid catalyst,(B) a first distillation step wherein the reaction mixture formed by the above reaction step is cooled and introduced into a pressurized distillation column under pressure of at least 5 kg/cm.sup.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: December 24, 1985
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Nobuyuki Murai, Kazuya Nakamichi, Masayuki Otake, Takashi Ushikubo
  • Patent number: 4436656
    Abstract: A novel glycoprotein substance possessing a high antitumor activity is provided, which is recovered and isolated from the liquid portion coming from cooking of raw scallop shellfish with a hot aqueous solvent or vapor of such solvent and which is amphoteric electrolyte in nature with an average molecular weight of about 5000 and with an isoelectric point of pH 5.2.
    Type: Grant
    Filed: August 2, 1983
    Date of Patent: March 13, 1984
    Assignee: Maruzen Oil Co., Ltd.
    Inventors: Takuma Sasaki, Kazuya Nakamichi, Yakudo Tachibana, Kiyoshi Minami
  • Patent number: 4436657
    Abstract: A novel glycoprotein substance possessing a high antitumor activity is provided, which is recovered and isolated from the liquid portion coming from cooking of raw scallop with a hot aqueous solvent or vapor of such solvent and which is amphoteric electrolyte in nature with an average molecular weight of about 470,000 and with an isoelectric point of pH 5.5.
    Type: Grant
    Filed: August 2, 1983
    Date of Patent: March 13, 1984
    Assignee: Maruzen Oil Co., Ltd.
    Inventors: Takuma Sasaki, Kazuya Nakamichi, Yakudo Tachibana, Kiyoshi Minami
  • Patent number: 4390468
    Abstract: A new antitumor agent is provided which consists essentially of water-soluble, macromolecular glycoprotein substances having a range of molecular weights within the limits of from 10,000 to 300,000 and which is prepared from shellfish or mollusc by taking up the liquid portion which comes from the cooking of raw shellfish in an aqueous solvent, typically water or a saline solution, or vapor of such solvent and which is to be discarded as waste, concentrating the liquid portion to a smaller volume or to dryness, dissolving the resulting concentrate or dry powder in an aqueous solvent and isolating the desired water-soluble, macromolecular glycoprotein substances therefrom. The isolation of the desired substances is preferably carried out by an ion-exchange chromatography with a basic anion-exchanger followed by a gel-filtration.
    Type: Grant
    Filed: August 4, 1982
    Date of Patent: June 28, 1983
    Assignee: Maruzen Oil Co., Ltd.
    Inventors: Takuma Sasaki, Kazuya Nakamichi