Patents by Inventor Yukichi Hatano

Yukichi Hatano 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: 20240158436
    Abstract: Disclosed is a method for producing a fusion protein in which an antibody and a lysosomal enzyme are fused. The method is a method for producing a fusion protein in which an antibody and a human lysosomal enzyme are fused, the method including: (a) culturing mammalian cells producing the fusion protein in a serum-free medium to secrete the fusion protein in a culture medium; (b) collecting a culture supernatant by removing the mammalian cells from the culture medium; and (c) purifying the fusion protein from the culture supernatant by using a column chromatography using a material to which a substance having affinity for the antibody is bound as a solid phase, an anion exchange column chromatography, a cation exchange column chromatography, and a size exclusion column chromatography.
    Type: Application
    Filed: March 8, 2022
    Publication date: May 16, 2024
    Applicant: JCR PHARMACEUTICALS CO., LTD.
    Inventors: Shinji Kakimoto, Tsuyoshi Fukui, Yukichi Hatano, Ayaka Kotani, Takuya Miura, Toshifumi Ishiguro
  • Publication number: 20240132566
    Abstract: Disclosed is a method for producing a fusion protein of human serum albumin and human growth hormone. The method comprises (a) a step of culturing a mammalian cell capable of producing the protein in a serum-free medium and causing the protein to be secreted into the culture fluid, (b) a step of collecting a culture supernatant by removing the mammalian cell from the culture fluid, and (c) a step of purifying the protein from the culture supernatant by using column chromatography using a material to which an antibody having an affinity for the protein is bound as a stationary phase, column chromatography using a material having an affinity for phosphate group as a stationary phase, cation exchange column chromatography, and size exclusion column chromatography.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 25, 2024
    Applicant: JCR PHARMACEUTICALS CO., LTD.
    Inventors: Shinji KAKIMOTO, Tsuyoshi FUKUI, Yukichi HATANO, Ayaka KOTANI, Ryota KATSUNO, Yuko OKADA
  • Patent number: 11512135
    Abstract: Disclosed is a method for production of a fusion protein in which an antibody and a lysosomal enzyme are fused. The method comprises; (a) a step of culturing mammalian cells producing the fusion protein in a serum-free medium to let the mammalian cells secrete the fusion protein in the culture medium, (b) a step of collecting culture supernatant by removing the mammalian cells from the culture medium, and (c) a step of purifying the fusion protein from the culture supernatant by using a column chromatography employing as a solid phase a material to which a substance having affinity for the fusion protein has been bound, a column chromatography employing as a solid phase a material having affinity for the phosphate group, and a size exclusion column chromatography.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: November 29, 2022
    Assignee: JCR Pharmaceuticals Co., Ltd.
    Inventors: Yuri Koshimura, Hiroyuki Sonoda, Miroslav Matev, Shinji Kakimoto, Tsuyoshi Fukui, Yukichi Hatano
  • Patent number: 10604779
    Abstract: Disclosed is a highly efficient method for production of highly pure mutant-type human erythropoietin. The method is for production of mutant-type human erythropoietin, in which a transformed mammalian cell is allowed to produce the mutant-type human erythropoietin, and the supernatant of the culture is subjected to hydrophobic column chromatography, multimodal anion exchange column chromatography, anion exchange column chromatography, phosphate group affinity column chromatography, and gel filtration column chromatography, in this order.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: March 31, 2020
    Assignee: JCR PHARMACEUTICALS CO., LTD.
    Inventors: Shinji Kakimoto, Miroslav Matev, Tsuyoshi Fukui, Yukichi Hatano, Junya Tani, Kazutoshi Mihara, Kenichi Takahashi, Atsushi Sugimura
  • Patent number: 10385325
    Abstract: Disclosed is a method for production of recombinant human alpha-galactosidase A (rh alpha-Gal A) in a large scale, with a high purity. The method comprises the steps of (a) culturing rh alpha-Gal A-producing mammalian cells in a serum-free medium, (b) collecting culture supernatant, (c) subjecting the culture supernatant to anion-exchange column chromatography, (d) to hydrophobic column chromatography, (e) to a column chromatography employing as solid phase a material having affinity for phosphate group, (f) to cation-exchange column chromatography, (g) to dye-affinity column chromatography, and (h) to gel filtration column chromatography, in the order.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: August 20, 2019
    Assignee: JCR PHARMACEUTICALS CO., LTD.
    Inventors: Tsuyoshi Fukui, Atsuko Kawasaki, Yukichi Hatano, Yae Ito, Kazutoshi Mihara, Atsushi Sugimura
  • Publication number: 20190225700
    Abstract: Disclosed is a method for production of a fusion protein in which an antibody and a lysosomal enzyme are fused. The method comprises; (a) a step of culturing mammalian cells producing the fusion protein in a serum-free medium to let the mammalian cells secrete the fusion protein in the culture medium, (b) a step of collecting culture supernatant by removing the mammalian cells from the culture medium, and (c) a step of purifying the fusion protein from the culture supernatant by using a column chromatography employing as a solid phase a material to which a substance having affinity for the fusion protein has been bound, a column chromatography employing as a solid phase a material having affinity for the phosphate group, and a size exclusion column chromatography.
    Type: Application
    Filed: August 25, 2017
    Publication date: July 25, 2019
    Applicant: JCR Pharmaceuticals Co., Ltd.
    Inventors: Yuri Koshimura, Hiroyuki Sonoda, Miroslav Matev, Shinji Kakimoto, Tsuyoshi Fukui, Yukichi Hatano
  • Publication number: 20190078129
    Abstract: Disclosed is a highly efficient method for production of highly pure mutant-type human erythropoietin. The method is for production of mutant-type human erythropoietin, in which a transformed mammalian cell is allowed to produce the mutant-type human erythropoietin, and the supernatant of the culture is subjected to hydrophobic column chromatography, multimodal anion exchange column chromatography, anion exchange column chromatography, phosphate group affinity column chromatography, and gel filtration column chromatography, in this order.
    Type: Application
    Filed: March 7, 2017
    Publication date: March 14, 2019
    Inventors: Shinji KAKIMOTO, Miroslav MATEV, Tsuyoshi FUKUI, Yukichi HATANO, Junya TANI, Kazutoshi MIHARA, Kenichi TAKAHASHI, Atsushi SUGIMURA
  • Publication number: 20180016564
    Abstract: Disclosed is a method for production of recombinant human alpha-galactosidase A (rh alpha-Gal A) in a large scale, with a high purity. The method comprises the steps of (a) culturing rh alpha-Gal A-producing mammalian cells in a serum-free medium, (b) collecting culture supernatant, (c) subjecting the culture supernatant to anion-exchange column chromatography, (d) to hydrophobic column chromatography, (e) to a column chromatography employing as solid phase a material having affinity for phosphate group, (f) to cation-exchange column chromatography, (g) to dye-affinity column chromatography, and (h) to gel filtration column chromatography, in the order.
    Type: Application
    Filed: January 21, 2016
    Publication date: January 18, 2018
    Inventors: Tsuyoshi FUKUI, Atsuko KAWASAKI, Yukichi HATANO, Yae ITO, Kazutoshi MIHARA, Atsushi SUGIMURA
  • Patent number: 9617529
    Abstract: Disclosed is a method for production of recombinant human alpha-galactosidase A (rh alpha-Gal A) in a large scale, with a high purity. The method comprises the steps of (a) culturing rh alpha-Gal A-producing mammalian cells in a serum-free medium, (b) collecting culture supernatant, (c) subjecting the culture supernatant to anion-exchange column chromatography, (d) to hydrophobic column chromatography, (e) to a column chromatography employing as solid phase a material having affinity for phosphate group, (f) to cation-exchange column chromatography, and (g) to gel filtration column chromatography, in the order.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: April 11, 2017
    Assignee: JCR PHARMACEUTICALS CO., LTD.
    Inventors: Masahiro Asano, Toshihiro Yagi, Tsuyoshi Fukui, Atsuko Kawasaki, Yukichi Hatano, Kazutoshi Mihara, Atsushi Sugimura
  • Publication number: 20150210992
    Abstract: Disclosed is a method for production of recombinant human alpha-galactosidase A (rh alpha-Gal A) in a large scale, with a high purity. The method comprises the steps of (a) culturing rh alpha-Gal A-producing mammalian cells in a serum-free medium, (b) collecting culture supernatant, (c) subjecting the culture supernatant to anion-exchange column chromatography, (d) to hydrophobic column chromatography, (e) to a column chromatography employing as solid phase a material having affinity for phosphate group, (f) to cation-exchange column chromatography, and (g) to gel filtration column chromatography, in the order.
    Type: Application
    Filed: July 24, 2013
    Publication date: July 30, 2015
    Inventors: Masahiro Asano, Toshihiro Yagi, Tsuyoshi Fukui, Atsuko Kawasaki, Yukichi Hatano, Kazutoshi Mihara, Atsushi Sugimura