Patents by Inventor Taisaku Seino

Taisaku Seino 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: 8747744
    Abstract: An automatic chemical analyzer in which a reaction solution is stirred by air ejected from an air ejection hole placed above a reaction container. The reaction region can be washed and cleaned sufficiently without causing damage, such as exfoliation of a coating reagent. A reaction container disk is provided with a pore and a pressure detector connected with the pore. Before and after the stirring operation, the ejection hole (nozzle) ejecting air is moved and the output value of the pressure detector is compared with a previously measured normal value. With a discharge pipe and a suction pipe inserted to the opening of the reaction container to be close to both ends of the opening and the side wall of the container, the reaction region at the bottom of the container is washed by continuous discharge and suction of cleaning fluid.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: June 10, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hironobu Yamakawa, Yoichi Aruga, Takenori Okusa, Taisaku Seino
  • Publication number: 20120183439
    Abstract: A chemical analyzer has a reaction vessel magazine 1 having multiple magazine cells 2 having an opening at each of its two ends that houses a reaction vessel 3, and the openings are sealed with protective films 4 and 5. A cutter 9 faces one of the openings of a magazine cell 2 so as to cut the protective film 5 of the magazine cell 2. Also, a pushrod 8 is provided in such a way as to face the other opening of the magazine cell 2 so as to push out the reaction vessel 3 placed inside the cell 2 through the other opening of the cell 2 that the cutter 9 faces. Thus, during removal of the reaction vessel 3 from the magazine cell 2, the antibody or antigen layer on the reaction vessel 3 can be prevented from being damaged.
    Type: Application
    Filed: August 10, 2010
    Publication date: July 19, 2012
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Taisaku Seino, Takenori Okusa
  • Publication number: 20120107180
    Abstract: An automatic chemical analyzer in which a reaction solution is stirred by air ejected from an air ejection hole placed above a reaction container. The reaction region can be washed and cleaned sufficiently without causing damage, such as exfoliation of a coating reagent. A reaction container disk 161 is provided with a pore 240 and a pressure detector 241 connected with the pore. Before and after the stirring operation, the ejection hole (nozzle) 170 ejecting air is moved and the output value of the pressure detector is compared with a previously measured normal value. With a discharge pipe 1101 and a suction pipe 1102 inserted to the opening of the reaction container 1140 to be close to both ends of the opening and the side wall of the container, the reaction region 1150 at the bottom of the container is washed by continuous discharge and suction of cleaning fluid.
    Type: Application
    Filed: February 22, 2010
    Publication date: May 3, 2012
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hironobu Yamakawa, Yoichi Aruga, Takenori Okusa, Kenichi Takahashi, Taisaku Seino
  • Patent number: 7678576
    Abstract: The invention provides a chemical analysis apparatus which easily agitates and warms up. A chemical analysis apparatus has a motor, a retaining disc which can be rotated by the motor, a plurality of inspection cartridges which are arranged on the retaining disc, a punching machine for punching the inspection cartridges, a warming apparatus and a detection apparatus. The inspection cartridge includes a container formed by a concave portion and a base plate having a flow path. A cover covering the container and the flow path is installed to the base plate. A liquid solution is moved to the container in an outer peripheral side with respect to a rotation axis from the container in an inner peripheral side with respect to the rotation axis via the flow path, by utilizing a centrifugal force generated on the basis of the rotation of the retaining disc.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: March 16, 2010
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Shigeyuki Sasaki, Yoshihiro Nagaoka, Noriyo Nishijima, Naruo Watanabe, Michihiro Saito, Taisaku Seino, Satoshi Takahashi
  • Publication number: 20090016931
    Abstract: A chemical analysis device capable of suppressing deterioration of analysis and test accuracy while avoiding contamination by residual samples or reagents and having no complicated configuration is constructed. A pipetting unit is equipped with a syringe, plunger, and needle unit in which a carrier for capturing nucleic acid and a detection cell is mounted on the needle unit. A pipetting unit drive system is configured so that the pipetting unit is detachable. After the detection cell is removed from the pipetting unit and fixed to a nucleic acid amplification detection unit, a suction/dispensing operation of samples/reagents is performed by the pipetting unit and components to be measured are captured by the carrier. Captured components are measured after being dispensed into the detection cell fixed to the nucleic acid amplification detection unit.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 15, 2009
    Inventors: Taisaku Seino, Hiroshi Umetsu, Michihiro Saito, Takayuki Kanda, Kumiko Hattori
  • Patent number: 7400753
    Abstract: A fluorescent or luminescence image of at least part of a biological sample is imaged, then a transmission light image of at least part of the biological sample is imaged, and thereafter the fluorescent or luminescence image and the transmission light image are overlaid such that the identical area of the sample is coincided to display. The present invention allows detecting the accurate location of fluorescence or luminescence in a given part of the biological sample.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: July 15, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Taisaku Seino, Satoshi Takahashi, Kenji Yasuda, Yoshitada Oshida
  • Patent number: 7309568
    Abstract: A method and apparatus of stably obtaining fluorescent images of two or more fluorescent samples includes disposing the samples onto compartments defined on a substrate. The compartments are sequentially irradiated with an exciting light where the intensity varies. A value of fluorescence as generated from each of the samples is determined, and a fluorescent image is obtained based on the value of fluorescence.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: December 18, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Yoshitada Oshida, Satoshi Takahashi, Kenji Yasuda, Taisaku Seino
  • Patent number: 7217352
    Abstract: An electrophoresis device is disclosed that is capable of reducing waves occurring in a fluid in which the capillary tips of a capillary assay are immersed. A plurality of partition plate members can be provided in a container containing the fluid to divide the surface of the fluid into several sections. The container can be transported at a high speed, and the capillary tips can be immersed in the fluid quickly, thereby preventing resolution degradation caused by a long period of exposure of the capillary tips to air. Throughput of sample analysis can also be improved because it is not necessary to wait until waves disappear before conducting an analysis.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: May 15, 2007
    Assignees: Hitachi High-Technologies Corporation, Applera Corporation
    Inventors: Taisaku Seino, Tomoyuki Sakai, Miho Ozawa, Masaya Kojima, Eric S. Nordman
  • Publication number: 20060159586
    Abstract: The invention provides a chemical analysis apparatus which easily agitates and warms up. A chemical analysis apparatus has a motor, a retaining disc which can be rotated by the motor, a plurality of inspection cartridges which are arranged on the retaining disc, a punching machine for punching the inspection cartridges, a warming apparatus and a detection apparatus. The inspection cartridge includes a container formed by a concave portion and a base plate having a flow path. A cover covering the container and the flow path is installed to the base plate. A liquid solution is moved to the container in an outer peripheral side with respect to a rotation axis from the container in an inner peripheral side with respect to the rotation axis via the flow path, by utilizing a centrifugal force generated on the basis of the rotation of the retaining disc.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 20, 2006
    Inventors: Shigeyuki Sasaki, Yoshihiro Nagaoka, Noriyo Nishijima, Naruo Watanabe, Michihiro Saito, Taisaku Seino, Satoshi Takahashi
  • Patent number: 7064813
    Abstract: Disclosed is an apparatus for measuring a micro area in a specimen in which a reagent necessary for observation and examination of a cell smear specimen or a tissue specimen is dropped to cause a reaction for a measurement and an analysis by way of an image. The apparatus includes: a micro reaction unit that is able to select a specific micro area in the specimen and to subject the specific micro area to a reaction-operation; a unit that measures; records and displays an image of the micro area; and a control unit that controls the measuring, recording, and displaying unit. Reactions can be effected quickly on such specimens as smear cell specimens and tissue slice specimens. The application of the reagent solution can be saved. A comparison between local presence of a gene or anti-body and a cell image can be made quickly and easily.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: June 20, 2006
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Satoshi Takahashi, Kenji Yasuda, Yoshitada Oshida, Taisaku Seino
  • Publication number: 20060073584
    Abstract: A chemical analyzing apparatus accommodates therein a structure for retaining a sample and reagents. A detecting mechanism detects the sample after reaction with a reagent. After or during extraction of a biological substance from the sample in the structure, a temperature of a fluid in a space around the structure is controlled to a value which is suitable for enzyme.
    Type: Application
    Filed: September 30, 2005
    Publication date: April 6, 2006
    Inventors: Shigeyuki Sasaki, Yoshihiro Nagaoka, Hirotoshi Ishimaru, Nobuyuki Maki, Toshiaki Yokobayashi, Michihiro Saito, Taisaku Seino
  • Publication number: 20040239916
    Abstract: A fluorescent or luminescence image of at least part of a biological sample is imaged, then a transmission light image of at least part of the biological sample is imaged, and thereafter the fluorescent or luminescence image and the transmission light image are overlaid such that the identical area of the sample is coincided to display. The present invention allows detecting the accurate location of fluorescence or luminescence in a given part of the biological sample.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 2, 2004
    Inventors: Taisaku Seino, Satoshi Takahashi, Kenji Yasuda, Yoshitada Oshida
  • Patent number: 6760105
    Abstract: A DNA sample added with a plurality of fluorescent marks is irradiated with excitation lights having a plurality of wavelengths and when fluorescence intensities are detected separately, the excitation light and a position on the sample are relatively changed over a desired area once to thereby detect the plurality of fluorescent marks at high speed.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: July 6, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Yoshitada Oshida, Satoshi Takahashi, Taisaku Seino, Kenji Yasuda
  • Publication number: 20030221965
    Abstract: An electrophoresis device is disclosed that is capable of reducing waves occurring in a fluid in which the capillary tips of a capillary assay are immersed. A plurality of partition plate members can be provided in a container containing the fluid to divide the surface of the fluid into several sections. The container can be transported at a high speed, and the capillary tips can be immersed in the fluid quickly, thereby preventing resolution degradation caused by a long period of exposure of the capillary tips to air. Throughput of sample analysis can also be improved because it is not necessary to wait until waves disappear before conducting an analysis.
    Type: Application
    Filed: May 28, 2003
    Publication date: December 4, 2003
    Inventors: Taisaku Seino, Tomoyuki Sakai, Miho Ozawa, Masaya Kojima, Eric S. Nordman
  • Patent number: 6606472
    Abstract: An image forming device and method utilizing an electrostatic latent image recording medium, developing units reserving different colors for developing images on the recording medium, a dryer for drying the developed images, and an adhesion reinforcer for enhancing adhesion of toner particles including electrostatically pressing dried toner particles against a front surface of the electrostatic latent image recording medium.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: August 12, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Akira Mori, Yukio Yamamoto, Kazumi Takahashi, Shogo Matsumoto, Junichi Matsuno, Taisaku Seino, Toshio Ogiso, Yasushi Kinoshita, Keiji Kamio, Kazutaka Sato
  • Publication number: 20030087282
    Abstract: A wide-dynamic range, high-resistivity and high-speed method of stably obtaining fluorescent images of two or more samples which may includes a fluorescent material, comprising the steps of: disposing each of said samples onto each of two or more compartments which an area on a substrate is split into; sequentially irradiating said compartments with an exciting light wherein each of said compartments is irradiated with said exciting light with the intensity changed; detecting one or more fluorescent lights as generated from each of said samples corresponding to said changed intensity of said exciting light every each of said samples; determining the true value of fluorescence as generated from each of said samples by using information on said one or more fluorescent lights as detected every each of said samples; and obtaining a fluorescent image of each of said samples by using said true value of fluorescence from each of said samples, and an apparatus for carrying out the same are provided.
    Type: Application
    Filed: August 26, 2002
    Publication date: May 8, 2003
    Applicant: Hitachi, Ltd. Incorporation: Japan
    Inventors: Yoshitada Oshida, Satoshi Takahashi, Kenji Yasuda, Taisaku Seino
  • Publication number: 20030081209
    Abstract: Disclosed is an apparatus for measuring a micro area in a specimen in which a reagent necessary for observation and examination of a cell smear specimen or a tissue specimen is dropped to cause a reaction for a measurement and an analysis by way of an image. The apparatus includes a micro reaction unit that is able to select a specific micro area in the specimen and to subject the specific micro area to a reaction-operation; a unit that measures an image of the micro area and records and displays the image of the micro area; and a control unit that controls the measuring, recording, and displaying unit. Hybridization reaction, immune reaction etc. can be effected quickly on such specimens as smear cell specimens and tissue slice specimens. The application of the reagent solution can be saved. A comparison between local presence of a gene or anti-body and a cell image can be made quickly and easily.
    Type: Application
    Filed: September 25, 2002
    Publication date: May 1, 2003
    Inventors: Satoshi Takahashi, Kenji Yasuda, Yoshitada Oshida, Taisaku Seino
  • Publication number: 20020140933
    Abstract: A DNA sample added with a plurality of fluorescent marks is irradiated with excitation lights having a plurality of wavelengths and when fluorescence intensities are detected separately, the excitation light and a position on the sample are relatively changed over a desired area once to thereby detect the plurality of fluorescent marks at high speed.
    Type: Application
    Filed: January 18, 2002
    Publication date: October 3, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Yoshitada Oshida, Satoshi Takahashi, Taisaku Seino, Kenji Yasuda
  • Publication number: 20020114742
    Abstract: Disclosed is a test chamber capable of performing a stain step without moving the test chamber itself under a microscope. The test chamber for observing and testing a smeared specimen, with cells and a tissue specimen comprises an observation portion (fixing portion) for observing the specimen and reagent storage portions, each storing a different reagent (stain liquid, rinse liquid) for stain from others therein, and sends the reagent to the specimen in response to stimulation from the outside to perform the stain.
    Type: Application
    Filed: February 20, 2002
    Publication date: August 22, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Satoshi Takahashi, Taisaku Seino, Kenji Yasuda
  • Patent number: 6069641
    Abstract: An ion flow recording apparatus performs recording making density modulation every pixel. When developing on a fine grain toner is to be performed using a liquid developer for an electrostatic latent image, a developing unit (developing roller) is disposed to face a direction of gravity. Namely, a control valve is provided on a pipe for application of a developer to the developing roller or on a joint portion between the pipe and a developer tank, developing units of different two colors are joined to their developer tank portions, and a rotary shaft is provided on the joint portion to be positioned at a point of symmetry to provide alternate use of the two developing units upon turning them. Therefore, developing for a plurality of colors can be simply performed, and such turning of the developing units enables prevention of the toner from deposition in the liquid developer during developing, thereby making it possible to perform a clear recording.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: May 30, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Junichi Matsuno, Shogo Matsumoto, Taisaku Seino, Yasushi Kinoshita, Akira Mori, Keiji Kamio, Akira Sasaki, Mitsuo Suzuki, Tetsuro Akasaki, Shigetaka Furukawa