Patents by Inventor Nobuyuki Kuriyama

Nobuyuki Kuriyama 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: 5397539
    Abstract: A plurality of cartridges are set to a cartridge standby section. Each cartridge has a specimen tub, a dilution tub and three reaction tubs, and a specimen is placed in the specimen tub in advance. A specimen dispensing unit first distributes the specimen from the specimen tub to three reaction tubs of the same cartridge. Thereafter the cartridges are successively transported to a first reagent dispensing section, a first reaction path, a second dispensing section, a second reaction path, an unreacted component removing section, a luminescent reagent dispensing section and a hydrogen peroxide dispensing section in the stated order. Examination processes including reagent dispensing and unreacted component removal are carried out simultaneously for the three reaction tubs of each cartridge. Finally, reaction mixtures are subjected to photometry in a photometric section.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: March 14, 1995
    Assignee: Toray Industries, Inc.
    Inventors: Mutsumi Hayashi, Tatsuo Ogasawara, Yayoi Mizutani, Nobuyuki Kuriyama
  • Patent number: 5019316
    Abstract: A system for producing a drawn yarn having a durable mechanical and thermal stability in practical use from a fiber-forming polymer by means of a single continuous process is disclosed. A yarn extruded from a spinneret is first introduced into a liquid bath for cooling and subsequently to a hot chamber filled with a pressurized steam for heat-treatment, in which the yarn is drawn against a resistance caused by the liquid bath. The vessel of the liquid bath is provided with a yarn exit path adapted to allow the passage of the yarn but inhibit the leakage of the liquid and to remove a concomitant liquid from the yarn. The hot chamber is provided with inlet and outlet paths for the yarn also adapted to allow the passage of the yarn but inhibit the leakage of the steam. The system is suitable for producing for industrial use a yarn composed of thicker individual filaments.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: May 28, 1991
    Assignee: Toray Industries, Inc.
    Inventors: Kunihiko Ueda, Katsumi Hasegawa, Nobuyuki Kuriyama