Patents by Inventor Tadanobu NAKAYAMA

Tadanobu NAKAYAMA 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).

  • METHOD FOR SELECTING, ASSESSING, OR PRODUCING SODIUM LAURYL SULFATE AS RAW MATERIAL FOR PHARMACEUTICAL FORMULATION, OR FORMULATION OR THE LIKE CONTAINING SAME
    Publication number: 20240100058
    Abstract: The present invention provides a method for determining a sodium lauryl sulfate having a desired quality as a pharmaceutical raw material for a formulation by detecting a slight difference in quality of sodium lauryl sulfate to be used as a pharmaceutical raw material for a formulation. The present invention relates to a method for sorting a raw material for a formulation which can provide a pharmaceutical formulation excellent in stability by pretreating the material for a formulation under a predetermined accelerated condition and detecting an impurity. According to the method of the present invention, it is possible to determine the quality of sodium lauryl sulfate of a pharmaceutical raw material for a formulation having no effect on the quality of a pharmaceutical formulation containing alectinib or a salt thereof.
    Type: Application
    Filed: December 25, 2020
    Publication date: March 28, 2024
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Tadanobu NAKAYAMA, Yoshiko KURE, Takuro SASAYAMA
  • AMORPHOUS FORM OF TETRACYCLIC COMPOUND
    Publication number: 20230339885
    Abstract: An amorphous form of 9-ethyl-6,6-dimethyl-8-(4-morpholin-4-yl-piperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile and a solid dispersion containing the amorphous form can be used extremely advantageously as drugs for oral administration.
    Type: Application
    Filed: November 4, 2022
    Publication date: October 26, 2023
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Koji Shiraki, Tadanobu NAKAYAMA, Tomoaki OTA
  • AMORPHOUS FORM OF TETRACYCLIC COMPOUND
    Publication number: 20210238160
    Abstract: An amorphous form of 9-ethyl-6,6-dimethyl-8-(4-morpholin-4-yl-piperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile and a solid dispersion containing the amorphous form can be used extremely advantageously as drugs for oral administration.
    Type: Application
    Filed: September 14, 2020
    Publication date: August 5, 2021
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Koji Shiraki, Tadanobu NAKAYAMA, Tomoaki OTA
  • Amorphous form of tetracyclic compound
    Patent number: 10774067
    Abstract: An amorphous form of 9-ethyl-6,6-dimethyl-8-(4-morpholin-4-yl-piperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile and a solid dispersion containing the amorphous form can be used extremely advantageously as drugs for oral administration.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: September 15, 2020
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Koji Shiraki, Tadanobu Nakayama, Tomoaki Ota
  • AMORPHOUS FORM OF TETRACYCLIC COMPOUND
    Publication number: 20190284163
    Abstract: An amorphous form of 9-ethyl-6,6-dimethyl-8-(4-morpholin-4-yl-piperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile and a solid dispersion containing the amorphous form can be used extremely advantageously as drugs for oral administration.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 19, 2019
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Koji Shiraki, Tadanobu NAKAYAMA, Tomoaki OTA
  • Amorphous form of tetracyclic compound
    Patent number: 10344014
    Abstract: An amorphous form of 9-ethyl-6,6-dimethyl-8-(4-morpholin-4-yl-piperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile and a solid dispersion containing the amorphous form can be used extremely advantageously as drugs for oral administration.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: July 9, 2019
    Assignee: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Koji Shiraki, Tadanobu Nakayama, Tomoaki Ota
  • AMORPHOUS FORM OF TETRACYCLIC COMPOUND
    Publication number: 20170217927
    Abstract: An amorphous form of 9-ethyl-6,6-dimethyl-8-(4-morpholin-4-yl-piperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile and a solid dispersion containing the amorphous form can be used extremely advantageously as drugs for oral administration.
    Type: Application
    Filed: August 7, 2015
    Publication date: August 3, 2017
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Koji SHIRAKI, Tadanobu NAKAYAMA, Tomoaki OTA