Patents by Inventor Takanobu IURA

Takanobu IURA 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: 20230323317
    Abstract: The present invention provides a novel hydrolase that can industrially produce optically highly pure (1S,2S)-1-alkoxycarbonyl-2-vinylcyclopropane carboxylic acid with high efficiency at low costs, and a production method using the hydrolase.
    Type: Application
    Filed: December 30, 2022
    Publication date: October 12, 2023
    Applicant: API CORPORATION
    Inventors: Toyokazu YOSHIDA, Koichi ISHIDA, Ryoma MIYAKE, Takanobu IURA, Hiroshi KAWABATA
  • Patent number: 11572551
    Abstract: The present invention provides a novel hydrolase that can industrially produce optically highly pure (1S,2S)-1-alkoxycarbonyl-2-vinylcyclopropane carboxylic acid with high efficiency at low costs, and a production method using the hydrolase.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: February 7, 2023
    Assignee: API CORPORATION
    Inventors: Toyokazu Yoshida, Koichi Ishida, Ryoma Miyake, Takanobu Iura, Hiroshi Kawabata
  • Publication number: 20230025343
    Abstract: The present invention provides a carbonyl reductase having the activity of reducing a carbonyl group-containing compound to convert the compound into an optically active compound, and a production method of an optically active compound using the enzyme. Specifically, a carbonyl reductase having one or more mutations in which the 54th aspartic acid, the 157th methionine, the 170th alanine, the 211th isoleucine, the 214th methionine, and the 249th methionine are each substituted by other specific amino acid in the amino acid sequence shown in SEQ ID NO: 1 or a homologue of the amino acid sequence, and a production method of an optically active compound using the same are provided.
    Type: Application
    Filed: November 20, 2020
    Publication date: January 26, 2023
    Applicant: API CORPORATION
    Inventors: Takanobu IURA, Yasumasa DEKISHIMA, Takeshi SAKAMOTO, Mari HARA, Hirotoshi HIRAOKA, Harald GRĂ–GER, Jieun CHOI
  • Patent number: 11396666
    Abstract: A method for producing a compound represented by formula (3) including bringing a carbon-carbon double bond reductase, a microorganism or cell having an ability to produce the enzyme, a processed product of the microorganism or cell, and/or a culture solution containing the enzyme which is obtained by culturing the microorganism or cell, and a carbonyl reductase, a microorganism or cell having an ability to produce the enzyme, a processed product of the microorganism or cell, and/or a culture solution containing the enzyme which is obtained by culturing the microorganism or cell into contact with a compound represented by formula (1) to obtain a compound represented by formula (3):
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: July 26, 2022
    Assignee: API CORPORATION
    Inventors: Haruka Sasano, Takanobu Iura, Kenji Oki
  • Publication number: 20220098623
    Abstract: A method for producing a compound represented by formula (3) including bringing a carbon-carbon double bond reductase, a microorganism or cell having an ability to produce the enzyme, a processed product of the microorganism or cell, and/or a culture solution containing the enzyme which is obtained by culturing the microorganism or cell, and a carbonyl reductase, a microorganism or cell having an ability to produce the enzyme, a processed product of the microorganism or cell, and/or a culture solution containing the enzyme which is obtained by culturing the microorganism or cell into contact with a compound represented by formula (1) to obtain a compound represented by formula (3):
    Type: Application
    Filed: April 17, 2020
    Publication date: March 31, 2022
    Applicant: API CORPORATION
    Inventors: Haruka SASANO, Takanobu IURA, Kenji OKI
  • Publication number: 20210024905
    Abstract: The present invention provides a novel hydrolase that can industrially produce optically highly pure (1S,2S)-1-alkoxycarbonyl-2-vinylcyclopropane carboxylic acid with high efficiency at low costs, and a production method using the hydrolase.
    Type: Application
    Filed: March 29, 2019
    Publication date: January 28, 2021
    Applicant: API CORPORATION
    Inventors: Toyokazu YOSHIDA, Koichi ISHIDA, Ryoma MIYAKE, Takanobu IURA, Hiroshi KAWABATA
  • Patent number: 10815201
    Abstract: Production of pitavastatin calcium safely on an industrial scale with a high yield and high selectivity at low cost. A method of producing pitavastatin calcium including step (i) for acetalizing a compound represented by the formula (1) to give a compound represented by the formula (3), step (ii) for reacting a compound represented by the formula (3) with an acid to give a compound represented by the formula (4), and step (iii) for hydrolyzing a compound represented by the formula (4) and reacting same with a calcium compound.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: October 27, 2020
    Assignee: API CORPORATION
    Inventors: Naoyuki Watanabe, Takanobu Iura, Hideki Oomiya, Masaki Nagahama
  • Publication number: 20200283390
    Abstract: Production of pitavastatin calcium safely on an industrial scale with a high yield and high selectivity at low cost. A method of producing pitavastatin calcium including step (i) for acetalizing a compound represented by the formula (1) to give a compound represented by the formula (3), step (ii) for reacting a compound represented by the formula (3) with an acid to give a compound represented by the formula (4), and step (iii) for hydrolyzing a compound represented by the formula (4) and reacting same with a calcium compound.
    Type: Application
    Filed: April 17, 2020
    Publication date: September 10, 2020
    Applicant: API CORPORATION
    Inventors: Naoyuki WATANABE, Takanobu IURA, Hideki OOMIYA, Masaki NAGAHAMA
  • Patent number: 10676441
    Abstract: Production of pitavastatin calcium safely on an industrial scale with a high yield and high selectivity at low cost. A method of producing pitavastatin calcium including step (i) for acetalizing a compound represented by the formula (1) to give a compound represented by the formula (3), step (ii) for reacting a compound represented by the formula (3) with an acid to give a compound represented by the formula (4), and step (iii) for hydrolyzing a compound represented by the formula (4) and reacting same with a calcium compound.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: June 9, 2020
    Assignee: API CORPORATION
    Inventors: Naoyuki Watanabe, Takanobu Iura, Hideki Oomiya, Masaki Nagahama
  • Publication number: 20180222865
    Abstract: Production of pitavastatin calcium safely on an industrial scale with a high yield and high selectivity at low cost. A method of producing pitavastatin calcium including step (i) for acetalizing a compound represented by the formula (1) to give a compound represented by the formula (3), step (ii) for reacting a compound represented by the formula (3) with an acid to give a compound represented by the formula (4), and step (iii) for hydrolyzing a compound represented by the formula (4) and reacting same with a calcium compound.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 9, 2018
    Applicant: API CORPORATION
    Inventors: Naoyuki WATANABE, Takanobu IURA, Hideki OOMIYA, Masaki NAGAHAMA