Patents by Inventor Kazuki Nakabayashi

Kazuki Nakabayashi 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: 20210325408
    Abstract: Disclosed is a method for assisting prediction of exacerbation of respiratory infection, comprising measuring a biomarker in a specimen collected from a subject suffering from a respiratory infection or a subject suspected of having a respiratory infection, wherein the biomarker is at least one selected from the group consisting of IFN?3, CCL17, CXCL11, IP-10, IL-6 and CXCL9, and a measured value of the biomarker is used as an index to predict exacerbation of the respiratory infection.
    Type: Application
    Filed: April 15, 2021
    Publication date: October 21, 2021
    Applicants: NATIONAL CENTER FOR GLOBAL HEALTH AND MEDICINE, SYSMEX CORPORATION
    Inventors: Masashi MIZOKAMI, Masaya SUGIYAMA, Norio OHMAGARI, Noriko KINOSHITA, Youichi TAKAHAMA, Kazuki NAKABAYASHI
  • Patent number: 8945841
    Abstract: Methods of judging the lymph node metastasis of stomach cancer, apparatuses for judging the lymph node metastasis of stomach cancer and kits used therefor are disclosed.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: February 3, 2015
    Assignee: Sysmex Corporation
    Inventors: Hideki Takata, Kayo Shoji, Kazuki Nakabayashi, Yasuhiro Otomo
  • Publication number: 20140162895
    Abstract: The invention provides a system adapted to a method for determining behavior of thyroid tumor. The system comprises a processor, and a memory, under control of said processor, including software instructions adapted to enable the system to perform operations.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 12, 2014
    Applicant: SYSMEX CORPORATION
    Inventors: Hiroyuki SHIMIZU, Kazuki NAKABAYASHI, Motonari DAITO
  • Patent number: 8465924
    Abstract: A treatment solution for preparing a sample solution for nucleic acid amplification reaction is described. The treatment solution comprises dimethyl sulfoxide and aqueous solvent. The sample solution prepared by treating a biological sample with the treatment solution is used in the amplification reaction of a nucleic acid, whereby the nucleic acid can be efficiently recovered from a biological sample, and the influence of an inhibitor during nucleic acid amplification can be effectively reduced.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: June 18, 2013
    Assignee: Sysmex Corporation
    Inventors: Yasuhiro Otomo, Kazuhiko Takeda, Shigeki Abe, Kazuki Nakabayashi
  • Patent number: 8187809
    Abstract: The present invention provides a novel marker capable of accurately diagnosing the lymph node metastasis of stomach cancer. An mRNA, or a fragment thereof, coding for at least one protein selected from TFF1, AGR2, PRSS8, MUC1, MUC4 and MUC17 can be useful as a lymph node metastasis marker.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: May 29, 2012
    Assignee: Sysmex Corporation
    Inventors: Hideki Takata, Takayuki Takahata, Kazuki Nakabayashi, Kayo Shoji, Yasuhiro Otomo
  • Publication number: 20120095301
    Abstract: In order to provide a method of testing lymph node metastasis in cervical cancer which can determine the presence of lymph node metastasis in cervical cancer with higher accuracy, the method includes acquiring information about mRNA expression level of at least one gene selected from the group consisting of SERPINB5, CK15, CK4, PI3, and ANXA8 contained in a measurement sample prepared from a lymph node tissue from a cervical cancer patient which may have cervical cancer metastasis; and determining whether cervical cancer has spread to the lymph node tissue based on the information about mRNA expression level acquired.
    Type: Application
    Filed: October 13, 2011
    Publication date: April 19, 2012
    Applicant: SYSMEX CORPORATION
    Inventors: Kazuki NAKABAYASHI, Kayo HIYAMA
  • Publication number: 20110311981
    Abstract: A method of determining a lymph node metastasis in a lung cancer, comprising: acquiring mRNA expression level of stratifin contained in a measurement sample prepared by using a lymph node tissue of a lung cancer patient who may have a lymph node metastasis; and determining that the lymph node tissue is a lymph node metastasis of the lung cancer when the acquired mRNA expression level of stratifin is overexpressed. An apparatus and a computer program product are also disclosed.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 22, 2011
    Applicant: SYSMEX CORPORATION
    Inventors: Kayo Hiyama, Yuichiro Yoshida, Masaki Kobayashi, Kazuki Nakabayashi
  • Patent number: 8053193
    Abstract: The invention provides a method for judging whether cancer cells are present or not in a sample, comprising a obtaining step of obtaining values related to an expression level of a caner marker gene and a housekeeping gene; a first comparing step of comparing the value related to the expression level of the cancer marker gene with a first threshold value; a normalizing step of normalizing the value related to the expression level of the cancer marker gene based on the value related to the expression level of the housekeeping gene; a second comparing step of comparing the normalized value with a second threshold value; and a judging step of judging whether cancer cells are present or not in the sample based on comparison results obtained in the first and second comparing steps, as well as an apparatus for judging whether cancer cells are present or not.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: November 8, 2011
    Assignee: Sysmex Corporation
    Inventors: Yasuhiro Otomo, Kazuki Nakabayashi, Kayo Shoji, Hideki Takata
  • Publication number: 20110076689
    Abstract: The present invention provides a means and method for detecting TYR mRNA. As a primer for detecting TYP mRNA, a primer comprising a first sequence at the 5? end side and a second sequence at the 3? end side, wherein the first sequence has 10 to 30 nucleotides in length, and the first sequence is a sequence of a polynucleotide capable of hybridizing with a strand complementary to a first region which is a partial region of SEQ ID NO: 1; and wherein the second sequence has 10 to 30 nucleotides in length, and the second sequence is a sequence of a polynucleotide capable of hybridizing with a second region located in the 3? end side from the first region in SEQ ID NO: 1 is used.
    Type: Application
    Filed: May 29, 2009
    Publication date: March 31, 2011
    Applicant: SYSMEX CORPORATION
    Inventors: Kayo Hiyama, Kazuki Nakabayashi, Yasuhiro Otomo
  • Publication number: 20110053168
    Abstract: Disclosed is a primer for detecting mRNA for CK7. The primer comprises a first sequence on its 5?-terminal side and a second sequence on its 3?-terminal side. The first sequence has a length of 10 to 30 nucleotides, and can hybridize with a strand complementary to a first region which is a region contained in the sequence depicted in SEQ ID NO:1. The second sequence has a length of 10 to 30 nucleotides, and can hybridize with a second region which is located on the 3?-terminal side from the first region in the sequence depicted in SEQ ID NO:1.
    Type: Application
    Filed: March 12, 2009
    Publication date: March 3, 2011
    Applicant: SYSMEX CORPORATION
    Inventors: Kayo Hiyama, Kazuki Nakabayashi, Yasuhiro Otomo, Hideki Takata
  • Publication number: 20090081671
    Abstract: The invention provides a method for judging whether cancer cells are present or not in a sample, comprising a obtaining step of obtaining values related to an expression level of a caner marker gene and a housekeeping gene; a first comparing step of comparing the value related to the expression level of the cancer marker gene with a first threshold value; a normalizing step of normalizing the value related to the expression level of the cancer marker gene based on the value related to the expression level of the housekeeping gene; a second comparing step of comparing the normalized value with a second threshold value; and a judging step of judging whether cancer cells are present or not in the sample based on comparison results obtained in the first and second comparing steps, as well as an apparatus for judging whether cancer cells are present or not.
    Type: Application
    Filed: July 18, 2008
    Publication date: March 26, 2009
    Applicant: SYSMEX CORPORATION
    Inventors: Yasuhiro Otomo, Kazuki Nakabayashi, Kayo Shoji, Hideki Takata
  • Publication number: 20080227094
    Abstract: Methods of judging the lymph node metastasis of stomach cancer, apparatuses for judging the lymph node metastasis of stomach cancer and kits used therefor are disclosed.
    Type: Application
    Filed: January 7, 2008
    Publication date: September 18, 2008
    Applicant: SYSMEX CORPORATION
    Inventors: Hideki Takata, Kayo Shoji, Kazuki Nakabayashi, Yasuhiro Otomo
  • Publication number: 20080182259
    Abstract: The present invention provides a novel marker capable of accurately diagnosing the lymph node metastasis of stomach cancer. An mRNA, or a fragment thereof, coding for at least one protein selected from TFF1, AGR2, PRSS8, MUC1, MUC4 and MUC17 can be useful as a lymph node metastasis marker.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 31, 2008
    Applicant: SYSMEX CORPORATION
    Inventors: Hideki Takata, Takayuki Takahata, Kazuki Nakabayashi, Kayo Shoji, Yasuhiro Otomo
  • Publication number: 20080166771
    Abstract: In detecting a nucleic acid by using the nucleic acid amplification method, it is intended to shorten the time required for the measurement so as to systematically and efficiently examine a gene, etc. To achieve this object, use is made of a method of directly amplifying a nucleic acid by treating a collected biological sample wherein a means of inhibiting the degradation activity of the nucleic acid is introduced during or after the step of homogenizing the biological sample and thus the nucleic acid is directly amplified without isolating/purifying the nucleic acid component from the biological sample. In this method, the means of inhibiting the degradation activity of the nucleic acid is introduced at an acidic pH value (more specifically, from pH 2.5 to pH 5) with the use of a salt interacting with a substance inhibiting the nucleic acid amplification reaction and/or the nucleic acid component so as to directly amplify the nucleic acid without isolating/purifying the nucleic acid component.
    Type: Application
    Filed: July 12, 2007
    Publication date: July 10, 2008
    Inventors: Sachiyo Tada, Tomokazu Yoshida, Keiichiro Shohmi, Masahiro Nishida, Kazuki Nakabayashi, Koichi Yamagata
  • Patent number: 7312053
    Abstract: In detecting a nucleic acid by using the nucleic acid amplification method, it is intended to shorten the time required for the measurement so as to systematically and efficiently examine a gene, etc. To achieve this object, use is made of a method of directly amplifying a nucleic acid by treating a collected biological sample wherein a means of inhibiting the degradation activity of the nucleic acid is introduced during or after the step of homogenizing the biological sample and thus the nucleic acid is directly amplified without isolating/purifying the nucleic acid component from the biological sample. In this method, the means of inhibiting the degradation activity of the nucleic acid is introduced at an acidic pH value (more specifically, from pH 2.5 to pH 5) with the use of a salt interacting with a substance inhibiting the nucleic acid amplification reaction and/or the nucleic acid component so as to directly amplify the nucleic acid without isolating/purifying the nucleic acid component.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: December 25, 2007
    Assignee: Sysmex Corporation
    Inventors: Sachiyo Tada, Tomokazu Yoshida, Keiichiro Shohmi, Masahiro Nishida, Kazuki Nakabayashi, Koichi Yamagata
  • Publication number: 20070287157
    Abstract: A method and apparatus for judging the presence or absence of metastasis of malignant tumor is herein described. The method comprising: measuring an absolute amount of a tumor marker; and judging the presence or absence of metastasis of malignant tumor by comparing the absolute amount with a predetermined threshold value. The apparatus comprising: a measuring assembly for obtaining information related to an absolute amount of a tumor marker; and a computer for obtaining absolute amount of the tumor marker based on the information related to the absolute amount of the tumor marker, and judging the presence or absence of metastasis by comparing the absolute amount of the tumor marker with a predetermined threshold value.
    Type: Application
    Filed: June 8, 2007
    Publication date: December 13, 2007
    Applicant: SYSMEX CORPORATION
    Inventors: Kazuki Nakabayashi, Yasuhiro Otomo, Motonari Daito, Hideki Takata, Kayo Hiyama
  • Publication number: 20070172857
    Abstract: The present invention relates to a primer and method for detecting lymph node metastasis of a cancer cell derived from a colon cancer by detecting a marker in a sample prepared from a lymph node obtained from a living body, wherein the marker is a mRNA or a fragment of the mRNA, the mRNA being transcribed from a gene coding a specific protein.
    Type: Application
    Filed: December 22, 2006
    Publication date: July 26, 2007
    Applicant: SYSMEX CORPORATION
    Inventors: Motonari Daito, Takayuki Takahata, Riko Sonoda, Yasuhiro Otomo, Kazuki Nakabayashi
  • Publication number: 20060188911
    Abstract: A genetic testing method for specifically amplifying a DNA complementary to a target nucleic acid existing in a biologic sample, measuring the amplified DNA, and generating diagnosis support information on the basis of a measurement result is described that includes steps of: (a) specifically amplifying a DNA complementary to an internal standard nucleic acid by using a known amount of the internal standard nucleic acid in the absence of the biologic sample component, and obtaining a first measurement result on the basis of the amplification, wherein the DNA has a property to be specifically amplified in the presence of the biologic sample component; (b) specifically amplifying the DNA complementary to the target nucleic acid in the presence of the biologic sample component, and obtaining a second measurement result on the basis of the amplification; and (c) comparing the first and second measurement results to obtain diagnosis support information.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 24, 2006
    Inventors: Yasuhiro Otomo, Kazuki Nakabayashi, Motonari Daito
  • Publication number: 20060121515
    Abstract: A treatment solution for preparing a sample solution for nucleic acid amplification reaction is described. The treatment solution comprises dimethyl sulfoxide and aqueous solvent. The sample solution prepared by treating a biological sample with the treatment solution is used in the amplification reaction of a nucleic acid, whereby the nucleic acid can be efficiently recovered from a biological sample, and the influence of an inhibitor during nucleic acid amplification can be effectively reduced.
    Type: Application
    Filed: December 6, 2005
    Publication date: June 8, 2006
    Inventors: Yasuhiro Otomo, Kazuhiko Takeda, Shigeki Abe, Kazuki Nakabayashi
  • Publication number: 20050089857
    Abstract: In detecting a nucleic acid by using the nucleic acid amplification method, it is intended to shorten the time required for the measurement so as to systematically and efficiently examine a gene, etc. To achieve this object, use is made of a method of directly amplifying a nucleic acid by treating a collected biological sample wherein a means of inhibiting the degradation activity of the nucleic acid is introduced during or after the step of homogenizing the biological sample and thus the nucleic acid is directly amplified without isolating/purifying the nucleic acid component from the biological sample. In this method, the means of inhibiting the degradation activity of the nucleic acid is introduced at an acidic pH value (more specifically, from pH 2.5 to pH 5) with the use of a salt interacting with a substance inhibiting the nucleic acid amplification reaction and/or the nucleic acid component so as to directly amplify the nucleic acid without isolating/purifying the nucleic acid component.
    Type: Application
    Filed: January 8, 2003
    Publication date: April 28, 2005
    Applicant: SYSMEX CORPORATION
    Inventors: Sachiyo Tada, Tomokazu Yoshida, Keiichiro Shohmi, Masahiro Nishida, Kazuki Nakabayashi, Koichi Yamagata