Patents by Inventor Ryosuke HIROTA

Ryosuke HIROTA 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).

  • OXAZOLE COMPOUND CRYSTAL
    Publication number: 20240076275
    Abstract: Provided is a crystal of a specific oxazole compound that has specific inhibitory activity against PDE4, and that shows excellent stability. Specifically, provided is a crystal of an oxazole compound represented by formula (5) wherein the crystal has peaks at diffraction angles)2?(°) of 9.6±0.2, 19.1±0.2, and 21.2±0.2 in an X-ray powder diffraction pattern measured using CuK? characteristic X-rays.
    Type: Application
    Filed: October 31, 2023
    Publication date: March 7, 2024
    Applicant: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Naohiko Kanai, Takayuki Yasutomi, Ryosuke Hirota
  • Oxazole compound crystal
    Patent number: 11840512
    Abstract: Provided is a crystal of a specific oxazole compound that has specific inhibitory activity against PDE4, and that shows excellent stability. Specifically, provided is a crystal of an oxazole compound represented by formula (5) wherein the crystal has peaks at diffraction angles 2?(°) of 9.6±0.2, 19.1±0.2, and 21.2±0.2 in an X-ray powder diffraction pattern measured using CuK? characteristic X-rays.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: December 12, 2023
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Naohiko Kanai, Takayuki Yasutomi, Ryosuke Hirota
  • OXAZOLE COMPOUND CRYSTAL
    Publication number: 20220411386
    Abstract: Provided is a crystal of a specific oxazole compound that has specific inhibitory activity against PDE4, and that shows excellent stability. Specifically, provided is a crystal of an oxazole compound represented by formula (5) wherein the crystal has peaks at diffraction angles 2?(°) of 9.6±0.2, 19.1±0.2, and 21.2±0.2 in an X-ray powder diffraction pattern measured using CuK? characteristic X-rays.
    Type: Application
    Filed: July 7, 2022
    Publication date: December 29, 2022
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Naohiko Kanai, Takayuki Yasutomi, Ryosuke Hirota
  • Oxazole compound crystal
    Patent number: 11414391
    Abstract: Provided is a crystal of a specific oxazole compound that has specific inhibitory activity against PDE4, and that shows excellent stability. Specifically, provided is a crystal of an oxazole compound represented by formula (5) wherein the crystal has peaks at diffraction angles 2?(°) of 9.6±0.2, 19.1±0.2, and 21.2±0.2 in an X-ray powder diffraction pattern measured using CuK? characteristic X-rays.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: August 16, 2022
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Naohiko Kanai, Takayuki Yasutomi, Ryosuke Hirota
  • OXAZOLE COMPOUND CRYSTAL
    Publication number: 20210147370
    Abstract: Provided is a crystal of a specific oxazole compound that has specific inhibitory activity against PDE4, and that shows excellent stability. Specifically, provided is a crystal of an oxazole compound represented by formula (5) wherein the crystal has peaks at diffraction angles 2?(°) of 9.6±0.2, 19.1±0.2, and 21.2±0.2 in an X-ray powder diffraction pattern measured using CuK? characteristic X-rays.
    Type: Application
    Filed: April 3, 2019
    Publication date: May 20, 2021
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Naohiko KANAI, Takayuki YASUTOMI, Ryosuke HIROTA