Patents by Inventor Junichi Sumitani

Junichi Sumitani 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).

  • Mutant ?-glucosidase
    Patent number: 11261436
    Abstract: Provided is a mutant ?-glucosidase capable of more efficiently saccharifying biomass. A mutant ?-glucosidase comprising an amino acid sequence having at least 80% sequence identity to SEQ ID NO: 1, wherein the amino acid sequence has asparagine at one or more positions selected from the group consisting of positions corresponding to positions 787, 790, and 797 of SEQ ID NO: 1, and has ?-glucosidase activity.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: March 1, 2022
    Assignee: Kao Corporation
    Inventors: Hiroshi Kakeshita, Nozomu Shibata, Junichi Sumitani, Yutaro Baba, Shuji Tani, Takashi Kawaguchi
  • Mutant ?-glucosidase
    Patent number: 11225679
    Abstract: Provision of a mutant ?-glucosidase having high protease resistance. A mutant ?-glucosidase consists of an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 1, wherein the amino acid sequence comprises Gln and Thr respectively at positions corresponding to positions 649 and 655 of SEQ ID NO: 1 or Tyr-Glu-Pro-Ala-Ser-Gly in a region corresponding to the region from position 653 to position 658 of SEQ ID NO: 1, and has ?-glucosidase activity.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: January 18, 2022
    Assignee: Kao Corporation
    Inventors: Junichi Sumitani, Yutaro Baba, Shuji Tani, Takashi Kawaguchi
  • Mutant Beta-Glucosidase
    Publication number: 20210024969
    Abstract: Provision of a mutant ?-glucosidase having high protease resistance. A mutant ?-glucosidase consists of an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 1, wherein the amino acid sequence comprises Gln and Thr respectively at positions corresponding to positions 649 and 655 of SEQ ID NO: 1 or Tyr-Glu-Pro-Ala-Ser-Gly in a region corresponding to the region from position 653 to position 658 of SEQ ID NO: 1, and has ?-glucosidase activity.
    Type: Application
    Filed: February 21, 2019
    Publication date: January 28, 2021
    Applicant: Kao Corporation
    Inventors: Junichi SUMITANI, Yutaro BABA, Shuji TANI, Takashi KAWAGUCHI
  • Mutant Beta-Glucosidase
    Publication number: 20210017511
    Abstract: Provided is a mutant ?-glucosidase capable of more efficiently saccharifying biomass. A mutant ?-glucosidase comprising an amino acid sequence having at least 80% sequence identity to SEQ ID NO: 1, wherein the amino acid sequence has asparagine at one or more positions selected from the group consisting of positions corresponding to positions 787, 790, and 797 of SEQ ID NO: 1, and has ?-glucosidase activity.
    Type: Application
    Filed: February 21, 2019
    Publication date: January 21, 2021
    Applicant: Kao Corporation
    Inventors: Hiroshi KAKESHITA, Nozomu SHIBATA, Junichi SUMITANI, Yutaro BABA, Shuji TANI, Takashi KAWAGUCHI
  • COMPOSITION FOR ASSAYING GLYCATED PROTEINS
    Publication number: 20120129202
    Abstract: Compositions for accurately assaying a glycated protein by: 1) avoiding effects of globulin and ascorbic acid components, 2) stabilizing proteases and at least enzymes acting on glycated amino acids; 3) accurately assaying albumin; and 4) assaying glycated albumin while avoiding the effects of glycated hemoglobin, and an assay method are provided. Thus, the contents of a glycated protein and glycated albumin can be more accurately determined.
    Type: Application
    Filed: December 9, 2011
    Publication date: May 24, 2012
    Inventors: Takuji Kouzuma, Issei Yoshioka, Motoo Arai, Junichi Sumitani, Shigeyuki Imamura
  • Composition for assaying glycated proteins
    Patent number: 8105800
    Abstract: Composition for accurately assaying a glycated protein by: 1) avoiding effects of globulin and ascorbic acid components, 2) siabilizing proteases and at least enzymes acting on glycated amino acids; 3) accurately assaying albumin; and 4) assaying glycated albumin while avoiding the effects of glycated hemoglobin, and an assay method are provided. Thus, the contents of a glycated protein and glycated albumin can be more accurately determined.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: January 31, 2012
    Assignee: Asahi Kasei Pharma Corporation
    Inventors: Takuji Kouzuma, Issei Yoshioka, Motoo Arai, Junichi Sumitani, Shigeyuki Imamura
  • COMPOSITION FOR ASSAYING GLYCATED PROTEINS
    Publication number: 20110312009
    Abstract: Compositions for accurately assaying a glycated protein by: 1) avoiding effects of globulin and ascorbic acid components, 2) stabilizing proteases and at least enzymes acting on glycated amino acids; 3) accurately assaying albumin; and 4) assaying glycated albumin while avoiding the effects of glycated hemoglobin, and an assay method are provided. Thus, the contents of a glycated protein and glycated albumin can be more accurately determined.
    Type: Application
    Filed: July 31, 2007
    Publication date: December 22, 2011
    Inventors: Takuji Kouzuma, Issei Yoshioka, Motoo Arai, Junichi Sumitani, Shigeyuki Imamura
  • Composition for assaying glycoprotein
    Patent number: 7250269
    Abstract: Compositions for accurately assaying a glycated protein by: 1) avoiding effects of globulin and ascorbic acid components, 2) siabilizing proteases and at least enzymes acting on glycated amino acids; 3) accurately assaying albumin; and 4) assaying glycated albumin while avoiding the effects of glycated hemoglobin, and an assay method are provided. Thus, the contents of a glycated protein and glycated albumin can be more accurately determined.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: July 31, 2007
    Assignee: Asahi Kasei Pharma Corporation
    Inventors: Takuji Kouzuma, Issei Yoshioka, Motoo Arai, Junichi Sumitani, Shigeyuki Imamura
  • Composition for assaying glycoprotein
    Publication number: 20050101771
    Abstract: Compositions for accurately assaying a glycated protein by: 1) avoiding effects of globulin and ascorbic acid components, 2) siabilizing proteases and at least enzymes acting on glycated amino acids; 3) accurately assaying albumin; and 4) assaying glycated albumin while avoiding the effects of glycated hemoglobin, and an assay method are provided. Thus, the contents of a glycated protein and glycated albumin can be more accurately determined.
    Type: Application
    Filed: January 30, 2002
    Publication date: May 12, 2005
    Inventors: Takuji Kouzuma, Issei Yoshioka, Motoo Arai, Junichi Sumitani, Shigeyuki Imamura