Patents by Inventor Shiro Yokota

Shiro Yokota 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: 10792248
    Abstract: An aqueous suspension preparation that comprises a macrolide antibacterial agent as an active component. The aqueous suspension preparation is characterized by comprising nanoparticles of a macrolide antibacterial agent and a dispersion stabilizer; an aqueous suspension in which the average particle size of nanoparticles is 500 nm or less and the D90 particle size is 1,500 nm or less; a parenterally administered pharmaceutical composition that comprises this aqueous suspension preparation; an injection preparation; and eye drops or ear drops, more specifically, eye drops for the treatment or prevention of inflammatory diseases of the eye or ear drops for the treatment or prevention of inflammatory diseases of the ear.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: October 6, 2020
    Assignee: ACTIVUS PHARMA CO., LTD.
    Inventors: Takahiro Tada, Kazuhiro Kagami, Shiro Yokota, Kenta Kikuchi
  • Publication number: 20200129526
    Abstract: A method of treating an inflammatory or infectious disease includes administering an effective amount of pharmaceutical composition to a subject in need of treatment of the inflammatory or infectious disease. The composition includes an aqueous suspension of nanoparticles of a glucocorticosteroid compound.
    Type: Application
    Filed: December 31, 2019
    Publication date: April 30, 2020
    Inventors: Takahiro TADA, Kazuhiro KAGAMI, Shiro YOKOTA, Kenta KIKUCHI
  • Publication number: 20160271057
    Abstract: An aqueous suspension preparation that comprises a macrolide antibacterial agent as an active component. The aqueous suspension preparation is characterized by comprising nanoparticles of a macrolide antibacterial agent and a dispersion stabilizer; an aqueous suspension in which the average particle size of nanoparticles is 500 nm or less and the D90 particle size is 1,500 nm or less; a parenterally administered pharmaceutical composition that comprises this aqueous suspension preparation; an injection preparation; and eye drops or ear drops, more specifically, eye drops for the treatment or prevention of inflammatory diseases of the eye or ear drops for the treatment or prevention of inflammatory diseases of the ear.
    Type: Application
    Filed: November 7, 2014
    Publication date: September 22, 2016
    Inventors: Takahiro TADA, Kazuhiro KAGAMI, Shiro YOKOTA, Kenta KIKUCHI
  • Patent number: 9278071
    Abstract: An organic compound nano-powder comprising a granular organic compound with an average particle diameter of 500 nm or less and a 90%-diameter of less than 1500 nm and a carbohydrate compound comprising at least any one of a sugar and a sugar alcohol and with amount of 0.3 times or more by mass relative to amount of the organic compound, a method for producing the same, and a suspension having the organic compound dispersed in a liquid dispersion medium in which the organic compound is insoluble or poorly soluble.
    Type: Grant
    Filed: May 11, 2013
    Date of Patent: March 8, 2016
    Assignee: ACTIVUS PHARMA CO., LTD.
    Inventors: Takahiro Tada, Kazuhiro Kagami, Shiro Yokota
  • Publication number: 20140328917
    Abstract: An organic compound nano-powder comprising a granular organic compound with an average particle diameter of 500 nm or less and a 90%-diameter of less than 1500 nm and a carbohydrate compound comprising at least any one of a sugar and a sugar alcohol and with amount of 0.3 times or more by mass relative to amount of the organic compound, a method for producing the same, and a suspension having the organic compound dispersed in a liquid dispersion medium in which the organic compound is insoluble or poorly soluble.
    Type: Application
    Filed: May 11, 2013
    Publication date: November 6, 2014
    Inventors: Takahiro Tada, Kazuhiro Kagami, Shiro Yokota
  • Patent number: 4392026
    Abstract: A system for testing subscriber lines and terminals by leading the subscriber line to the testing system through an associated semiconductor switch of a type driven by a constant current. The system includes a circuit for varying a current fed through the switch from the subscriber line to be tested, a circuit for measuring current values corresponding to the circuit states of the circuit, and a circuit for determining on the basis of the measured values derived from the measuring circuit a current value from which the constant current component for driving the switch is eliminated.
    Type: Grant
    Filed: October 7, 1981
    Date of Patent: July 5, 1983
    Assignees: Hitachi, Ltd., Nippon Telegraph & Telephone Public Corporation
    Inventors: Takafumi Kojima, Kenzo Tamaki, Shiro Yokota