Patents by Inventor Nobuhiro Kitagawa

Nobuhiro Kitagawa 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).

  • Publication number: 20080011106
    Abstract: The present invention is to present a sample analyzer which is capable of preventing the size of the overall apparatus from being increased and the control of the apparatus from becoming more complex. The sample analyzer comprises: a first holding section; a second holding section, a dispenser for dispensing a reagent; analyzing means for analyzing a measurement sample; first receiving means for receiving an replacement instruction; second receiving means for receiving an order including a sample analysis item; and control means for controlling the dispenser so as to dispense a first reagent contained in a first reagent container held by the second holding section, when the first receiving means receives the instruction for replacement of a second reagent container held by the first holding section, and the second receiving means receives the order including the sample analysis item which uses the first reagent.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 17, 2008
    Inventors: Nobuhiro Kitagawa, Shuhei Kaneko, Kyozo Fujita
  • Publication number: 20080014118
    Abstract: The present invention is to present a sample analyzer which is able to move a reagent container containing a reagent which a user desires to replace to a pick up position. The sample analyzer comprises: a holding section comprising a plurality of holding regions for holding reagent containers, and being capable of moving the holding regions; analyzing means for analyzing a measurement sample prepared by mixing a sample and the reagent contained in the reagent container held by the holding section; receiving means for receiving a specification of a holding region from the plurality of holding regions to replace or add a reagent; and control means for controlling the holding section so as to move the specified holding region to a replacement-addition position at which the reagent is replaced or added, when the receiving means receives the specification of the holding region.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 17, 2008
    Inventors: Nobuhiro Kitagawa, Shuhei Kaneko, Kyozo Fujita
  • Publication number: 20070269342
    Abstract: The present invention is to present a sample analyzer which can conduct a stable feeding of container used for preparing a measuring sample.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 22, 2007
    Inventor: Nobuhiro Kitagawa
  • Patent number: 7296590
    Abstract: A liquid suction device for sucking liquid contained in a vessel is described herein. A liquid retention room having an inflow port and an exhaust port is inserted into the vessel via an opening at an upper part of the vessel and is dipped in the liquid. A suction tube connected to the exhaust port extends from the opening of the vessel. A float member provided in the liquid retention room is enabled to open and close the exhaust port. The liquid is retained in the liquid retention room when the retention room is dipped in the liquid and the float member is floated upward so as to open the exhaust port. The retained liquid is exhausted from the inflow port when the liquid is lessened to reach a predetermined volume or below, and the exhaust port is closed by the float member.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: November 20, 2007
    Assignee: Sysmex Corporation
    Inventor: Nobuhiro Kitagawa
  • Publication number: 20070062316
    Abstract: The present invention provides a liquid sample suctioning device capable of simplifying a structure thereof, preventing clogging of a pipette and contamination of a liquid sample, and closing a hole formed in a lid after the liquid sample is suctioned. The liquid sample suctioning device is adapted to suction the liquid sample in the container by piercing through the lid mounted on an opening of the container, comprising a piercer having a leading end insertable into the container by piercing through the lid and forming a deformation piece deformable toward an inner side of the container in the lid, a pipette configured for suctioning the liquid sample in the container, a first driving part for moving up and down the piercer, and a second driving part for moving up and down the pipette along the piercer.
    Type: Application
    Filed: September 5, 2006
    Publication date: March 22, 2007
    Inventors: Nobuhiro Kitagawa, Shuhei Kaneko
  • Publication number: 20050183774
    Abstract: The liquid suction device for sucking liquid contained in a vessel is described that include: a liquid retention room inserted into the vessel via an opening at an upper part of the vessel and dipped in the liquid, the liquid retention room having an inflow port and an exhaust port; a suction tube connected to the exhaust port and extending from the opening of the vessel; and a float member provided in the liquid retention room, the float member opening and closing the exhaust port, wherein the liquid is retained in the liquid retention room when the retention room is dipped in the liquid, the float member is floated upward so as to open the exhaust port, the liquid in the vessel is sucked outward via the inflow port, the liquid retention room, the exhaust port and the suction tube, the retained liquid is exhausted from the inflow port when the liquid in the vessel is lessened to reach a predetermined volume or below, and the exhaust port is closed by the float member.
    Type: Application
    Filed: February 18, 2005
    Publication date: August 25, 2005
    Inventor: Nobuhiro Kitagawa
  • Patent number: 6827904
    Abstract: A liquid dispensing apparatus, includes a container for containing a liquid, a container setting part for setting the container, a dispensing mechanism part having a pipette for drawing and dispensing the liquid, a raising/lowering part for raising and lowering the pipette, a base for holding the raising/lowering part and provided with a projecting part, and a base driving part for moving the base. A lid capable of being opened/closed with an opening/closing pivot part is coupled to the container, and the lid is provided with a hook part projecting upward from the lid for engaging with the projecting part, which opens the lid by abutting against the hook part and moving the hook part toward the pivot part side of the container as the base moves relatively to the container and retains the state of the lid opened.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: December 7, 2004
    Assignee: Sysmex Corporation
    Inventor: Nobuhiro Kitagawa
  • Patent number: 6513716
    Abstract: An automatic apparatus for reading bar codes consists of a bar code reader, a reflecting member for reflecting light irradiated from the bar code reader to a bar code, a driving member for moving the reflecting member on a travel path parallel to the direction of the irradiated light and at least one abutment part provided on the travel path. A first container setting part for setting first containers and a second container setting part for setting second containers are arranged on both sides, respectively, of the travel path, and the reflecting member may rotate between a first position to allow the bar code reader to reader first bar codes of the first containers through the reflecting member and a second position to allow the bar code reader to read second bar codes of the second containers through the reflecting member.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: February 4, 2003
    Assignee: Sysmex Corporation
    Inventor: Nobuhiro Kitagawa
  • Publication number: 20010048029
    Abstract: An automatic apparatus for reading bar codes consists of a bar code reader, a reflecting member for reflecting light irradiated from the bar code reader to a bar code, a driving means for moving the reflecting member on a travel path parallel to the direction of the irradiated light and at least one abutment part provided on said travel path. A first container setting part for setting first containers and a second container setting part for setting second containers are arranged on both sides, respectively, of said travel path, and the reflecting member may rotate between a first position to allow said bar code reader to read first bar codes of the first containers through the reflecting member and a second position to allow said bar code reader to read second bar codes of the second containers through the reflecting member.
    Type: Application
    Filed: April 23, 2001
    Publication date: December 6, 2001
    Inventor: Nobuhiro Kitagawa
  • Publication number: 20010028863
    Abstract: A liquid dispensing apparatus, including a container for containing a liquid; a container setting part for setting the container; and a dispensing mechanism part having a pipette for drawing and dispensing the liquid, a raising/lowering part for raising and lowering the pipette, a base for holding the raising/lowering part and a base driving part for moving the base.
    Type: Application
    Filed: March 30, 2001
    Publication date: October 11, 2001
    Inventor: Nobuhiro Kitagawa
  • Patent number: 5896804
    Abstract: A compact syringe pump having a high quantitative accuracy and a high durability is provided. The syringe pump comprises a motor, a rotating cylinder, a moving element, a guide means for introducing the moving element in an axial direction of the rotating cylinder, a piston rod disposed on the moving element and a cylinder within which the piston rod moves, wherein the guide means comprises a guide pin extending through the moving element in the axial direction of the rotating cylinder and a pair of upper supporting member and lower supporting member for supporting both ends of the guide pin so that the guide pin becomes in parallel to the axial direction of the rotating cylinder, the upper supporting member rotatably supports the rotating cylinder at an upper end portion of the rotating cylinder and the lower supporting member rotatably supports the rotating cylinder at an upper surface portion of the bottom portion of the rotating cylinder, thereby preventing the rotating cylinder from swinging.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: April 27, 1999
    Assignee: Toa Medical Electronics Co., Ltd.
    Inventors: Rokusaburo Kimura, Nobuhiro Kitagawa
  • Patent number: 5879142
    Abstract: A fluid transfer system employing a roller pump for squeezing an elastically deformable tube by a roller to allow fluid to be transferred from a transfer source to a transfer destination, said fluid transfer system being characterized by comprising: a short-cut passageway connecting between an inlet passageway and an outlet passageway of said tube fitted onto said roller pump; and a passageway switching means for selectively bringing fluid into fluid communication with said short-cut passageway.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: March 9, 1999
    Assignee: Toa Medical Electronics Co., Ltd.
    Inventor: Nobuhiro Kitagawa
  • Patent number: 5695721
    Abstract: A specimen stirring device has a stirring impeller on a rotating shaft enclosed in a pipe having one or more side holes in a central portion thereof and a nozzle portion at its end and by rotation of the stirring impeller can create a circulating flow of specimen liquid flowing out of the pipe through the nozzle portion, upward along the outside of the pipe and back into the pipe through the side holes and thereby efficiently stir a specimen liquid in a specimen container even if the specimen container is long and slender or has a tapered bottom and without there being a possibility of the stirring impeller and the specimen container making contact with and damaging each other. A specimen sampling apparatus including this specimen stirring device is also disclosed.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: December 9, 1997
    Assignee: Toa Medical Electronics Co., Ltd.
    Inventors: Nobuhiro Kitagawa, Masakazu Fukuda
  • Patent number: 5062237
    Abstract: A noosing bear trap comprises a main body defining an interior space and provided with an access opening which allows insertion of a bear's hand into the interior space for taking a bait placed therein at a position spaced from the access opening. A capturing wire is fixable at one end and formed at the other end with a diametrically variable noosing loop located at or adjacent the access opening. The noosing loop is normally in a non-tensioned condition but adapted to be tensioned for diametrical reduction in response to the movement of the bear's hand for taking the bait.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: November 5, 1991
    Inventors: Nobuhiro Kitagawa, Sigeru Gotsugi
  • Patent number: 5035413
    Abstract: The printer drives the sheet feeding mechanism in response to the initial sheet-setting command and both the first sensor's and the second sensor's detection of no sheet, first forward until the second sheet sensor detects no sheet, then backward until the second sheet sensor detects no sheet, and finally forward the predetermined distance. The paper is neither caught nor crumpled near the exit of the first sheet supplier when the paper is fed backward.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: July 30, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Keiko Yamada, Mitsunobu Suda, Ichirou Kawashima, Nobuhiro Kitagawa