Patents by Inventor Jun Nihira

Jun Nihira 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).

  • Pharmaceutical preparation comprising aminopyrazole derivative
    Patent number: 9814776
    Abstract: The pharmaceutical formulations according to the present invention include an alkyl sulfate salt and a compound represented by general formula (I) below (where R1 to R4 are as defined in the specification) or tautomers thereof, or pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: November 14, 2017
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Jun Nihira, Kensuke Okazaki, Shiho Yoshimura
  • Method for producing a composite organic compound powder for medical use
    Patent number: 9782484
    Abstract: The purpose of present invention is to provide a medicine which has low contamination with a fine-pulverizing medium, is safe and has improved bioavailability. A method for producing a composite organic compound powder for medical use is used which comprises: mixing a poorly water-soluble and crystalline organic compound powder, a physiologically acceptable salt, a physiologically acceptable polyol, and a carboxyvinyl polymer and fine-pulverizing the organic compound powder; and removing at least the salt and the polyol during or after fine-pulverizing.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: October 10, 2017
    Assignee: ACTIVUS PHARMA CO., LTD.
    Inventors: Takashi Hirokawa, Takahiro Tada, Jun Nihira
  • PHARMACEUTICAL PREPARATION COMPRISING AMINOPYRAZOLE DERIVATIVE
    Publication number: 20150238607
    Abstract: The pharmaceutical formulations according to the present invention include an alkyl sulfate salt and a compound represented by general formula (I) below (where R1 to R4 are as defined in the specification) or tautomers thereof, or pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: July 31, 2014
    Publication date: August 27, 2015
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Jun Nihira, Kensuke Okazaki, Shiho Yoshimura
  • METHOD FOR PRODUCING A COMPOSITE ORGANIC COMPOUND POWDER FOR MEDICAL USE
    Publication number: 20140038931
    Abstract: The purpose of present invention is to provide a medicine which has low contamination with a fine-pulverizing medium, is safe and has improved bioavailability. A method for producing a composite organic compound powder for medical use is used which comprises: mixing a poorly water-soluble and crystalline organic compound powder, a physiologically acceptable salt, a physiologically acceptable polyol, and a carboxyvinyl polymer and fine-pulverizing the organic compound powder; and removing at least the salt and the polyol during or after fine-pulverizing.
    Type: Application
    Filed: August 27, 2013
    Publication date: February 6, 2014
    Applicant: ACTIVUS PHARMA CO., LTD.
    Inventors: Takashi HIROKAWA, Takahiro TADA, Jun NIHIRA
  • COMPOSITE ORGANIC COMPOUND POWDER FOR MEDICAL USE, METHOD FOR PRODUCING SAME AND SUSPENSION OF SAME
    Publication number: 20110165259
    Abstract: [Problem to be Solved] The purpose of present invention is to provide a medicine which has low contamination with a fine-pulverizing medium, is safe and has improved bioavailability. [Solution] A method for producing a composite organic compound powder for medical use is used which comprises: mixing a poorly water-soluble and crystalline organic compound powder, a physiologically acceptable salt, a physiologically acceptable polyol, and a carboxyvinyl polymer and fine-pulverizing the organic compound powder; and removing at least the salt and the polyol during or after fine-pulverizing.
    Type: Application
    Filed: September 15, 2009
    Publication date: July 7, 2011
    Applicant: ACTIVUS PHARMA CO., LTD.
    Inventors: Takashi Hirokawa, Takahiro Tada, Jun Nihira