Patents by Inventor Shigeki Mitsunaga

Shigeki Mitsunaga 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: 10711306
    Abstract: The purpose of the present invention is to provide a method and kit for highly precise DNA typing, in which a high throughput sequencer is used and ambiguity derived from phase ambiguity is eliminated. The present invention provides a method for the DNA typing of HLA, which is characterized by comprising: (1) a step of preparing sets of primers which respectively hybridize specifically to an upstream region and a downstream region of at least 2 genes selected from genes belonging to HLA class I and HLA class II in a human genome sequence, and are capable of amplifying under the same PCR conditions; (2) a step of simultaneously amplifying said at least 2 genes in a test sample (DNA) using the sets of primers in a single container under the same PCR conditions; (3) a step of determining the nucleotide sequences of PCR amplified products; and (4) a step of optionally carrying out a homology search within a database.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: July 14, 2020
    Assignee: GENODIVE PHARMA INC.
    Inventors: Takashi Shiina, Shingo Suzuki, Yuki Wada, Shigeki Mitsunaga, Hidetoshi Inoko
  • Patent number: 10704095
    Abstract: The purpose of the present invention is to provide a method and kit for highly precise DNA typing, in which ambiguity derived from phase ambiguity is eliminated. The present invention provides a method for the DNA typing of HLA, which is characterized by comprising: (1) a step of preparing a set of primers which can respectively anneal specifically to an upstream region and a downstream region of each of HLA-A, HLA-B, HLA-C, HLA-DQA1, HLA-DQB1, HLA-DPA1 and HLA-DPB1 gene in the nucleotide sequence for the human genome, and a set of primers which can respectively anneal specifically to exon-2 and a 3?-side non-translated region in HLA-DRB1; (2) a step of carrying out the PCR amplification of a sample to be tested (DNA) using the sets of primers; (3) a step of determining the nucleotide sequence for a PCR-amplified product; and (4) an optional step of carrying out the homology search in a data base.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: July 7, 2020
    Assignee: GENODIVE PHARMA INC.
    Inventors: Takashi Shiina, Shingo Suzuki, Yuki Wada, Shigeki Mitsunaga, Hidetoshi Inoko
  • Patent number: 10494673
    Abstract: The present invention addresses the problem of providing a method and kit for the DNA profiling of HLA genes using a high-throughput massively parallel sequencer. The present invention pertains to a method for the DNA profiling of HLA genes, said method being characterized by including: (1) a step for preparing a primer set that anneals specifically to exon 4 and intron 1 and includes exon 2 and exon 3 of at least one target gene selected from the group consisting of HLA-DRB1, HLA-DRB3, HLA-DRB4, HLA-DRB5, HLA-DQB1 and HLA-DPB1 in the base sequence of the human genome; (2) a step for amplifying a sample (DNA) by PCR using the primer set; (3) a step for determining the base sequence of the amplified PCR product; and (4) a step for carrying out a homology search against a database.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: December 3, 2019
    Assignee: GENODIVE PHARMA INC.
    Inventors: Takashi Shiina, Shingo Suzuki, Yuki Wada, Shigeki Mitsunaga, Hidetoshi Inoko
  • Publication number: 20170029885
    Abstract: The present invention addresses the problem of providing a method and kit for the DNA profiling of HLA genes using a high-throughput massively parallel sequencer. The present invention pertains to a method for the DNA profiling of HLA genes, said method being characterized by including: (1) a step for preparing a primer set that anneals specifically to exon 4 and intron 1 and includes exon 2 and exon 3 of at least one target gene selected from the group consisting of HLA-DRB1, HLA-DRB3, HLA-DRB4, HLA-DRB5, HLA-DQB1 and HLA-DPB1 in the base sequence of the human genome; (2) a step for amplifying a sample (DNA) by PCR using the primer set; (3) a step for determining the base sequence of the amplified PCR product; and (4) a step for carrying out a homology search against a database.
    Type: Application
    Filed: November 27, 2014
    Publication date: February 2, 2017
    Inventors: Takashi Shiina, Shingo Suzuki, Yuki Wada, Shigeki Mitsunaga, Hidetoshi Inoko
  • Publication number: 20160208326
    Abstract: The purpose of the present invention is to provide a method and kit for highly precise DNA typing, in which ambiguity derived from phase ambiguity is eliminated. The present invention provides a method for the DNA typing of HLA, which is characterized by comprising: (1) a step of preparing a set of primers which can respectively anneal specifically to an upstream region and a downstream region of each of HLA-A, HLA-B, HLA-C, HLA-DQA1, HLA-DQB1, HLA-DPA1 and HLA-DPB1 gene in the nucleotide sequence for the human genome, and a set of primers which can respectively anneal specifically to exon-2 and a 3?-side non-translated region in HLA-DRB1; (2) a step of carrying out the PCR amplification of a sample to be tested (DNA) using the sets of primers; (3) a step of determining the nucleotide sequence for a PCR-amplified product; and (4) an optional step of carrying out the homology search in a data base.
    Type: Application
    Filed: April 1, 2016
    Publication date: July 21, 2016
    Inventors: Takashi Shiina, Shingo Suzuki, Yuki Ozaki, Shigeki Mitsunaga, Hidetoshi Inoko
  • Publication number: 20160060695
    Abstract: The purpose of the present invention is to provide a method and kit for highly precise DNA typing, in which a high throughput sequencer is used and ambiguity derived from phase ambiguity is eliminated. The present invention provides a method for the DNA typing of HLA, which is characterized by comprising: (1) a step of preparing sets of primers which respectively hybridize specifically to an upstream region and a downstream region of at least 2 genes selected from genes belonging to HLA class I and HLA class II in a human genome sequence, and are capable of amplifying under the same PCR conditions; (2) a step of simultaneously amplifying said at least 2 genes in a test sample (DNA) using the sets of primers in a single container under the same PCR conditions; (3) a step of determining the nucleotide sequences of PCR amplified products; and (4) a step of optionally carrying out a homology search within a database.
    Type: Application
    Filed: May 9, 2014
    Publication date: March 3, 2016
    Inventors: Takashi Shiina, Shingo Suzuki, Yuki Wada, Shigeki Mitsunaga, Hidetoshi Inoko
  • Publication number: 20140206005
    Abstract: The purpose of the present invention is to provide a method and kit for highly precise DNA typing, in which ambiguity derived from phase ambiguity is eliminated. The present invention provides a method for the DNA typing of HLA, which is characterized by comprising: (1) a step of preparing a set of primers which can respectively anneal specifically to an upstream region and a downstream region of each of HLA-A, HLA-B, HLA-C, HLA-DQA1, HLA-DQB1, HLA-DPA1 and HLA-DPB1 gene in the nucleotide sequence for the human genome, and a set of primers which can respectively anneal specifically to exon-2 and a 3?-side non-translated region in HLA-DRB1; (2) a step of carrying out the PCR amplification of a sample to be tested (DNA) using the sets of primers; (3) a step of determining the nucleotide sequence for a PCR-amplified product; and (4) an optional step of carrying out the homology search in a data base.
    Type: Application
    Filed: May 18, 2012
    Publication date: July 24, 2014
    Applicant: GENODIVE PHARMA INC.
    Inventors: Takashi Shiina, Shingo Suzuki, Yuki Ozaki, Shigeki Mitsunaga, Hidetoshi Inoko
  • Publication number: 20120135917
    Abstract: Provided are: a method for blocking the biosynthesis of an outer membrane protein (OMP) necessary for the survival of Gram-negative bacteria by inhibiting the formation of a YaeT complex in the outer membrane of the bacteria and an agent therefor for the purpose of basically solving a problem of the development of multidrug resistance in Gram-negative bacteria. Specifically disclosed is an anti-Gram-negative bacteria agent, wherein the agent exerts a bactericidal action, a growth-inhibiting action, and/or a drug efflux-inhibiting action on Gram-negative bacteria by inhibiting the formation of a YaeT complex. The agent is preferably a peptide molecule comprising an amino acid sequence consisting of at least LTLR or a peptide molecule comprising an amino acid sequence consisting of at least FIRL.
    Type: Application
    Filed: June 16, 2010
    Publication date: May 31, 2012
    Inventors: Eisaku Yoshihara, Shigeki Mitsunaga, Hidetoshi Inoko