Patents by Inventor Koreyoshi Imamura

Koreyoshi Imamura 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).

  • N?-acyl-L-lysine-specific aminoacylase
    Patent number: 7888079
    Abstract: The present invention provides an aminoacylase having superior abilities in specifically acylating and hydrolyzing e-amino group of Lys, and a method of producing N?-acyl-L-lysine. The present invention provides N?-acyl-L-lysine-specific aminoacylase containing the amino acid sequence of SERPXTTLLRNGDVH (X unknown) at the N-terminal, and a method of producing N?-acyl-L-lysine comprising acting the aminoacylase on L-Lys and a carboxylic acid.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: February 15, 2011
    Assignees: Ajinomoto Co., Inc., National University Corporation Okayama University
    Inventors: Kazuhiro Nakanishi, Koreyoshi Imamura, Hiroyuki Imanaka, Mayuko Koreishi, Noriki Nio
  • N-EPSILON-ACYL-L-LYSINE-SPECIFIC AMINOACYLASE
    Publication number: 20070298469
    Abstract: The present invention provides an aminoacylase having superior abilities in specifically acylating and hydrolyzing e-amino group of Lys, and a method of producing N?-acyl-L-lysine. The present invention provides N?-acyl-L-lysine-specific aminoacylase containing the amino acid sequence of SERPXTTLLRNGDVH (X unknown) at the N-terminal, and a method of producing N?-acyl-L-lysine comprising acting the aminoacylase on L-Lys and a carboxylic acid.
    Type: Application
    Filed: August 21, 2007
    Publication date: December 27, 2007
    Applicants: Ajinomoto Co., Inc., National University Corporation Okayama University
    Inventors: Kazuhiro Nakanishi, Koreyoshi Imamura, Hiroyuki Imanaka, Mayuko Koreishi, Noriki Nio
  • Hydrolyzing/dehydration condensing enzymes, method for producing the enzyme and method for synthesizing amide by using the enzyme
    Publication number: 20040106172
    Abstract: A hydrolyzing/dehydration condensing enzyme having the physical and chemical properties (1) to (3): (1) function and substrate specificity: the enzyme catalyzes a hydrolyzing or dehydration condensing reaction of an amide bond; (2) an optimal temperature range of about 55° C.; and (3) an optimal pH range of 6-8.
    Type: Application
    Filed: August 26, 2003
    Publication date: June 3, 2004
    Applicant: Okayama University
    Inventors: Kazuhiro Nakanishi, Takaharu Sakiyama, Koreyoshi Imamura
  • Capsaicin-decomposing/synthesizing enzymes and a method for producing the same
    Publication number: 20030157670
    Abstract: Capsaicin decomposing/synthesizing enzymes are disclosed, which each have the following physical and chemical properties: (1) function and substrate specificity: the enzyme catalyzes a decomposition and/or synthesis reaction of capsaicin and/or capsaicin analogs; (2) an optimal temperature range: near 55° C.; and(3) an optimal pH range of 7-8. Microorganisms to be used for producing these enzymes are also disclosed.
    Type: Application
    Filed: July 17, 2002
    Publication date: August 21, 2003
    Applicant: OKAYAMA UNIVERSITY
    Inventors: Kazuhiro Nakanishi, Takaharu Sakiyama, Koreyoshi Imamura