Patents by Inventor Masahiro Kozuka

Masahiro Kozuka 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: 20220128549
    Abstract: The present disclosure relates to a method for labeling particles with magnetic particles and an apparatus for labeling particles with magnetic particles.
    Type: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Applicant: ARKRAY, Inc.
    Inventors: Hiroshi Ito, Masahiro Kozuka, Takahide Inouchi, Shigeru Kitamura
  • Patent number: 11249077
    Abstract: The present disclosure relates to a method for labeling particles with magnetic particles and an apparatus for labeling particles with magnetic particles.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 15, 2022
    Assignee: ARKRAY, Inc.
    Inventors: Hiroshi Ito, Masahiro Kozuka, Takahide Inouchi, Shigeru Kitamura
  • Patent number: 10994281
    Abstract: Provided is a method for separating particles, a separation apparatus, and a separation system.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 4, 2021
    Assignee: ARKRAY, Inc.
    Inventor: Masahiro Kozuka
  • Publication number: 20180100850
    Abstract: The present disclosure relates to a method for collecting or detecting cells, and a cell collection system. The present disclosure also relates to a method for collecting or detecting rare cells in a specimen, and a rare cell collection system used therefor.
    Type: Application
    Filed: October 4, 2017
    Publication date: April 12, 2018
    Applicant: ARKRAY, Inc.
    Inventors: Hidenori Takagi, Masahiro Kozuka, Hiroshi Ito
  • Publication number: 20180093280
    Abstract: Provided is a method for separating particles, a separation apparatus, and a separation system.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 5, 2018
    Applicant: ARKRAY, Inc.
    Inventor: Masahiro Kozuka
  • Publication number: 20180095079
    Abstract: The present disclosure relates to a method for labeling particles with magnetic particles and an apparatus for labeling particles with magnetic particles.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 5, 2018
    Applicant: ARKRAY, Inc.
    Inventors: Hiroshi Ito, Masahiro Kozuka, Takahide Inouchi, Shigeru Kitamura
  • Patent number: 9645154
    Abstract: A method for detecting a cancer cell, including: contacting in vitro a peripheral blood-containing sample including test cells and a labeling substance; allowing the test cells to incorporate the labeling substance to label the test cells; and detecting, as a cancer cell, a cell showing a higher degree of labeling with the labeling substance than that shown by a normal cell in the peripheral blood-containing sample.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: May 9, 2017
    Assignee: ARKRAY, Inc.
    Inventors: Hidenori Takagi, Hiroshi Ito, Masahiro Kozuka
  • Patent number: 8865456
    Abstract: The present invention provides a nucleic acid collection device that can estimate the nucleic acid collection amount when collecting nucleic acids from a biological sample containing nucleic acids. The nucleic acid collection device comprises a sucking and discharging unit for sucking in and forcing out a sample containing nucleic acids, a collector for collecting the nucleic acids by sucking in and forcing out the sample using the sucking and discharging unit, a pressure measurer for measuring a discharging pressure when forcing out the sample and a sucking pressure when sucking in the sample, and measuring a differential pressure that is the difference between the discharging pressure and the sucking pressure, and an estimator for estimating the collection amount of nucleic acids collected based on the differential pressure.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: October 21, 2014
    Assignee: ARKRAY, Inc.
    Inventors: Masahiro Kozuka, Yukihiro Sukawa
  • Patent number: 8843602
    Abstract: In a network boot system, a client terminal is caused to detect a revision of a virtual disk so as to decide operations of a read cache driver. The client terminal has a physical storage device. An operating system operating on the client terminal has a read cache mechanism that read-caches data that has been read out from a boot server. The read cache mechanism includes a filter driver for converting an access to a local bus of the client terminal into an access to the network, and a read cache driver for driving a storage device. The data in the virtual disk is compared with the revision of the read cache data. The operations of the read cache driver are decided based on the comparison result.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: September 23, 2014
    Assignee: CO-CONV, Corp.
    Inventors: Shin Maruyama, Masahiro Kozuka
  • Publication number: 20130288273
    Abstract: A method for detecting a cancer cell, including: contacting in vitro a peripheral blood-containing sample including test cells and a labeling substance; allowing the test cells to incorporate the labeling substance to label the test cells; and detecting, as a cancer cell, a cell showing a higher degree of labeling with the labeling substance than that shown by a normal cell in the peripheral blood-containing sample.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 31, 2013
    Applicant: ARKRAY, INC.
    Inventors: Hidenori Takagi, Hiroshi Ito, Masahiro Kozuka
  • Publication number: 20130112002
    Abstract: The present invention provides a nucleic acid collection device that can estimate the nucleic acid collection amount when collecting nucleic acids from a biological sample containing nucleic acids. The nucleic acid collection device comprises a sucking and discharging unit for sucking in and forcing out a sample containing nucleic acids, a collector for collecting the nucleic acids by sucking in and forcing out the sample using the sucking and discharging unit, a pressure measurer for measuring a discharging pressure when forcing out the sample and a sucking pressure when sucking in the sample, and measuring a differential pressure that is the difference between the discharging pressure and the sucking pressure, and an estimator for estimating the collection amount of nucleic acids collected based on the differential pressure.
    Type: Application
    Filed: April 27, 2012
    Publication date: May 9, 2013
    Applicant: ARKRAY, INC.
    Inventors: Masahiro Kozuka, Yukihiro Sukawa
  • Patent number: 8433888
    Abstract: To minimize network access to a server in a network boot system. A server which stores an OS operating on a client terminal and a client terminal which includes a physical storage device are connected to each other over a network. The client terminal includes a physical memory and a network interface, and the OS includes a network driver for driving the network interface, a filter driver for converting access to a local bus of the client terminal into access to the network, and a read cache driver for driving the storage device. The read cache driver caches data which is read out from the server by the filter driver in the storage device.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: April 30, 2013
    Assignee: Co-Conv, Corp.
    Inventors: Shin Maruyama, Masahiro Kozuka
  • Publication number: 20120231463
    Abstract: The present invention provides a primer set for specifically amplifying a target region in a MTHFR gene by a nucleic acid amplification method, a MTHFR gene amplification reagent containing the primer set, and use of the primer set.
    Type: Application
    Filed: November 19, 2010
    Publication date: September 13, 2012
    Applicant: Arkray, Inc.
    Inventors: Mitsuharu Hirai, Masahiro Kozuka
  • Publication number: 20110275126
    Abstract: Provided are a simple method for producing a nucleic acid sample that does not need to use high-risk chaotropic salt in large amounts, does not need to use a limited special carrier, and offers a superior level of safety; and a method for producing a nucleic acid amplification product using the same. With respect to a cell sample containing cells, by releasing nucleic acid complexes from the cells and bringing this treatment liquid into contact with a carrier, the nucleic acid complexes are held in the carrier. Further, in the presence of a dispersion medium, by applying heat treatment to the carrier, DNAs such as genomic DNA and mitochondrial DNA, and RNA are released. Thereby, a nucleic acid sample can be recovered.
    Type: Application
    Filed: January 15, 2010
    Publication date: November 10, 2011
    Applicant: ARKRAY, Inc.
    Inventor: Masahiro Kozuka
  • Publication number: 20110083006
    Abstract: In a network boot system, a client terminal is caused to detect a revision of a virtual disk so as to decide operations of a read cache driver. The client terminal has a physical storage device. An operating system operating on the client terminal has a read cache mechanism that read-caches data that has been read out from a boot server. The read cache mechanism includes a filter driver for converting an access to a local bus of the client terminal into an access to the network, and a read cache driver for driving a storage device. The data in the virtual disk is compared with the revision of the read cache data. The operations of the read cache driver are decided based on the comparison result.
    Type: Application
    Filed: May 28, 2009
    Publication date: April 7, 2011
    Applicant: CO-CONV, Corp.
    Inventors: Shin Maruyama, Masahiro Kozuka
  • Publication number: 20100299512
    Abstract: To minimize network access to a server in a network boot system. A server which stores an OS operating on a client terminal and a client terminal which includes a physical storage device are connected to each other over a network. The client terminal includes a physical memory and a network interface, and the OS includes a network driver for driving the network interface, a filter driver for converting access to a local bus of the client terminal into access to the network, and a read cache driver for driving the storage device. The read cache driver caches data which is read out from the server by the filter driver in the storage device.
    Type: Application
    Filed: May 5, 2008
    Publication date: November 25, 2010
    Applicant: CO-CONV, CORP.
    Inventors: Shin Maruyama, Masahiro Kozuka