Patents by Inventor Nobuaki Okumura

Nobuaki Okumura 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: 20230243835
    Abstract: An adenocarcinoma detection method based on a protein fragment of WFDC2 protein in a sample originating from a subject, the method comprising determining a presence of adenocarcinoma by comparing a first determination value and a threshold value set in advance, the first determination value being a value derived by dividing a first fragment quantity, which is a quantity of a protein fragment having an amino acid sequence of SEQ ID NO: 1 in the sample as determined by an ELISA method, by a reference quantity defined by a total quantity of WFDC2 protein or a creatinine concentration in the sample as determined by an ELISA method.
    Type: Application
    Filed: June 22, 2021
    Publication date: August 3, 2023
    Applicants: MITSUI CHEMICALS, INC., OSAKA UNIVERSITY, UNIVERSITY OF MIYAZAKI
    Inventors: Komako ISHIKAWA, Koh AMANO, Toshifumi TAKAO, Nobuaki OKUMURA, Toshiki TAKEI, Masamitsu NAKAZATO, Hironobu TSUBOUCHI
  • Publication number: 20220370513
    Abstract: There are disclosed an antioxidant agent, an antisaccharification agent, a neurite outgrowth promoting agent, and a cognitive function improving agent, which contain propolis and a ginkgo leaf extract as active ingredients.
    Type: Application
    Filed: October 28, 2020
    Publication date: November 24, 2022
    Inventors: Tomomi ISHIKAWA, Nobuaki OKUMURA, Chika NISHIMORI, Takahiro FUJIOKA, Ayanori YAMAKI, Hiroko NAGAI, Takashi ASAMA
  • Patent number: 11435354
    Abstract: There is provided a simple and minimally invasive adenocarcinoma detection method. The adenocarcinoma detection method of the present invention includes a step of detecting in vitro a presence or absence of an abnormal cleavage in a specific protein in a test subject-derived sample. The abnormal cleavage in the specific protein is, for example, a cleavage resulting in one or more breaks in a peptide bond in the specific protein and/or a cleavage resulting in a deletion of one or two more amino acid residues at one or more sites of the specific protein. The adenocarcinoma detection method of the present invention includes a step of detecting a presence or amount of a protein having the abnormal cleavage or a decrease in an amount of a normal protein.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: September 6, 2022
    Assignees: UNIVERSITY OF MIYAZAKI, OSAKA UNIVERSITY
    Inventors: Masamitsu Nakazato, Nobuhiro Matsumoto, Yasuji Arimura, Hironobu Tsubouchi, Toshifumi Takao, Nobuaki Okumura, Masafumi Fukuda
  • Publication number: 20200333343
    Abstract: There is provided a simple and minimally invasive adenocarcinoma detection method. The adenocarcinoma detection method of the present invention includes a step of detecting in vitro a presence or absence of an abnormal cleavage in a specific protein in a test subject-derived sample. The abnormal cleavage in the specific protein is, for example, a cleavage resulting in one or more breaks in a peptide bond in the specific protein and/or a cleavage resulting in a deletion of one or two more amino acid residues at one or more sites of the specific protein. The adenocarcinoma detection method of the present invention includes a step of detecting a presence or amount of a protein having the abnormal cleavage or a decrease in an amount of a normal protein.
    Type: Application
    Filed: February 16, 2017
    Publication date: October 22, 2020
    Inventors: Masamitsu Nakazato, Nobuhiro Matsumoto, Yasuji Arimura, Hironobu Tsubouchi, Toshifumi Takao, Nobuaki Okumura, Masafumi Fukuda
  • Publication number: 20200124605
    Abstract: Provided is a lung adenocarcinoma detection method that is simple and is less invasive. The lung adenocarcinoma detection method of the present invention includes the step of detecting the presence or absence of an abnormal cleavage in kininogen I in a sample collected from a subject in vitro. The abnormal cleavage in kininogen I is, for example, a cleavage that can form at least one cleaved site in a peptide bond in kininogen I and/or a cleavage that causes the deletion of at least one amino acid residue at least one site in kininogen I. The lung adenocarcinoma detection method according to the present invention includes the step of detecting the presence or amount of a protein having the above-mentioned abnormal cleavage or the loss of the amount of a normal protein, and the like.
    Type: Application
    Filed: June 7, 2018
    Publication date: April 23, 2020
    Inventors: Masamitsu NAKAZATO, Nobuhiro MATSUMOTO, Hironobu TSUBOUCHI, Yasuji ARIMURA, Shigehisa YANAGI, Toshifumi TAKAO, Nobuaki OKUMURA
  • Publication number: 20100055762
    Abstract: This invention relates to an agent for promoting differentiation of an ES cell, preferably an agent for promoting differentiation of an ES cell into a hepatocyte or a prophylactic agent for teratoma, comprising uPA. Furthermore this invention relates to a method of promoting differentiation of an ES cell, preferably a method of promoting differentiation of an ES cell into a hepatocyte, comprising the step of contacting uPA with the ES cell, or a method of preparing a hepatocyte comprising the step of contacting uPA with an ES cell to differentiate the ES cell into a hepatocyte.
    Type: Application
    Filed: March 24, 2006
    Publication date: March 4, 2010
    Inventors: Toyohiko Ariga, Taiichiro Seki, Go Watanabe, Hiroto Nakashima, Nobuaki Okumura, Yuichi Hasebe