Patents by Inventor Tsutomu Arakawa

Tsutomu Arakawa 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: 11001627
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 11, 2021
    Assignee: Coherus BioSciences, Inc.
    Inventors: Tsutomu Arakawa, Douglas Farrar
  • Patent number: 10954295
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: March 23, 2021
    Assignee: Coherus BioSciences, Inc.
    Inventors: Tsutomu Arakawa, Douglas Farrar
  • Patent number: 10954294
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: March 23, 2021
    Assignee: Coherus BioSciences, Inc.
    Inventors: Tsutomu Arakawa, Douglas Farrar
  • Patent number: 10954293
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: March 23, 2021
    Assignee: Coherus BioSciences, Inc.
    Inventors: Tsutomu Arakawa, Douglas Farrar
  • Patent number: 10947306
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: March 16, 2021
    Assignee: Coherus BioSciences, Inc.
    Inventors: Tsutomu Arakawa, Douglas Farrar
  • Publication number: 20190330325
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 31, 2019
    Applicant: COHERUS BIOSCIENCES, INC.
    Inventors: Tsutomu ARAKAWA, Douglas FARRAR
  • Publication number: 20190300601
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 3, 2019
    Applicant: COHERUS BIOSCIENCES, INC.
    Inventors: Tsutomu ARAKAWA, Douglas FARRAR
  • Publication number: 20190300600
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 3, 2019
    Applicant: COHERUS BIOSCIENCES, INC.
    Inventors: Tsutomu ARAKAWA, Douglas FARRAR
  • Publication number: 20190300602
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 3, 2019
    Applicant: COHERUS BIOSCIENCES, INC.
    Inventors: Tsutomu ARAKAWA, Douglas FARRAR
  • Publication number: 20180037642
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Application
    Filed: September 29, 2017
    Publication date: February 8, 2018
    Inventors: Tsutomu Arakawa, Douglas Farrar
  • Patent number: 9872499
    Abstract: The invention provides a virus-inactivating composition with pH of 3.8 to 5.5, containing (A) 0.02 to 0.3 M arginine and (B) a component such as 0.01 to 10 mM flavonoid, polyphenol, or ascorbic acid derivative, 0.005 to 5 mass % of an arginine derivative, and 0.1 to 2.5 mass % of an extract solution of natural product.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: January 23, 2018
    Assignee: AJINOMOTO CO., INC.
    Inventors: Daisuke Ejima, Haruna Sato, Hajime Koyama, Tsutomu Arakawa
  • Publication number: 20170143834
    Abstract: Pharmaceutical compositions, in particular, compositions comprising growth hormone (GH) and insulin-like growth factor (IGF-1) which are stable at a desirable pH without aggregation formation, and processes for preparing such compositions.
    Type: Application
    Filed: September 30, 2016
    Publication date: May 25, 2017
    Inventors: Enona GOPINATH, Susan PARK, Tsutomu ARAKAWA, Joël RICHARD, Fabio FAIS
  • Patent number: 9462810
    Abstract: The present invention provides a method for conveniently producing a protein formulation in which viruses are inactivated, without impairing the quality of the obtained protein formulation, characterized by including the step of exposing the protein formulation contaminated with the viruses to a 0.1-2M aqueous solution of arginine, an arginine derivative, or a mixture thereof, the aqueous solution being adjusted to pH 3.5 to 5. The present invention also provides a virus inactivation method characterized by including the step of contacting a virus-containing object with a 0.1-2M aqueous solution of arginine, an arginine derivative, or a mixture thereof, the aqueous solution being adjusted to pH 3.5 to 5.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: October 11, 2016
    Assignee: AJINOMOTO CO., INC.
    Inventors: Hajime Koyama, Tsutomu Arakawa, Daisuke Ejima
  • Publication number: 20140107207
    Abstract: The present invention provides a method for conveniently producing a protein formulation in which viruses are inactivated, without impairing the quality of the obtained protein formulation, characterized by including the step of exposing the protein formulation contaminated with the viruses to a 0.1-2M aqueous solution of arginine, an arginine derivative, or a mixture thereof, the aqueous solution being adjusted to pH 3.5 to 5. The present invention also provides a virus inactivation method characterized by including the step of contacting a virus-containing object with a 0.1-2M aqueous solution of arginine, an arginine derivative, or a mixture thereof, the aqueous solution being adjusted to pH 3.5 to 5.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: AJINOMOTO CO., INC.
    Inventors: Hajime Koyama, Tsutomu Arakawa, Daisuke Ejima
  • Publication number: 20140072560
    Abstract: A mixed mode chromatography method for separating correctly folded from incorrectly folded conformations of a given protein is provided. The method is highly effective in separating correctly folded etanercept from incorrectly folded etanercept and aggregates in commercially attractive yields capable of affording etanercept preparations having very high purity in terms of correctly folded etanercept versus incorrectly folded etanercept. The invention is further directed to protein preparations and formulations comprising correctly folded proteins obtained using the present methods, and methods of treatment using the high purity preparations obtained from the mixed mode method.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 13, 2014
    Applicant: COHERUS BIOSCIENCES, INC.
    Inventors: Tsutomu Arakawa, Douglas Farrar
  • Patent number: 8669045
    Abstract: The present invention provides a method for conveniently producing a protein formulation in which viruses are inactivated, without impairing the quality of the obtained protein formulation, characterized by including the step of exposing the protein formulation contaminated with the viruses to a 0.1-2M aqueous solution of arginine, an arginine derivative, or a mixture thereof, the aqueous solution being adjusted to pH 3.5 to 5. The present invention also provides a virus inactivation method characterized by including the step of contacting a virus-containing object with a 0.1-2M aqueous solution of arginine, an arginine derivative, or a mixture thereof, the aqueous solution being adjusted to pH 3.5 to 5.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: March 11, 2014
    Assignee: Ajinomoto Co., Inc.
    Inventors: Hajime Koyama, Tsutomu Arakawa, Daisuke Ejima
  • Patent number: 8632778
    Abstract: The present invention provides stabilized preparations containing an antibody in a glycine buffer and/or a histidine buffer and also provides processes for preparing a protein-containing stabilized preparation, comprising adjusting the pH with a basic amino acid or a basic amino acid derivative or a salt thereof.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: January 21, 2014
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Masaya Kakuta, Tadao Yamazaki, Akira Hayasaka, Yoshiki Hayashi, Tsutomu Arakawa
  • Patent number: 8470328
    Abstract: The present invention provides a method of purifying an antibody by protein A affinity chromatography. More specifically, the present invention provides a technique relating to an elution buffer solution which provides a good antibody recovery rate without denaturation.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: June 25, 2013
    Assignee: Ajinomoto Co., Inc.
    Inventors: Ryosuke Yumioka, Daisuke Ejima, Tsutomu Arakawa
  • Patent number: 8444990
    Abstract: Anti-Her2 antibodies which induce apoptosis in Her2 expressing cells are disclosed. The antibodies are used to “tag” Her2 overexpressing tumors for elimination by the host immune system. Also disclosed are hybridoma cell lines producing the antibodies, methods for treating cancer using the antibodies, and pharmaceutical compositions.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: May 21, 2013
    Assignee: Amgen Inc.
    Inventors: Tsutomu Arakawa, Yoshiko Kita
  • Patent number: 8435527
    Abstract: The present invention provides a method of purifying an antibody by protein A affinity chromatography. More specifically, the present invention provides a technique relating to an elution buffer solution which provides a good antibody recovery rate without denaturation.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 7, 2013
    Assignee: Ajinomoto Co., Inc.
    Inventors: Ryosuke Yumioka, Daisuke Ejima, Tsutomu Arakawa