Patents by Inventor Yuki Kasashima

Yuki Kasashima 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: 10058536
    Abstract: To provide: (1) a modified release liquid (suspension) containing mirabegron, (2) a ready-to-suspend pharmaceutical composition containing mirabegron, and (3) a mirabegron-containing pharmaceutical composition that does not generate undissolved lumps, even when it is suspended at the time of use. The present invention relates to a pharmaceutical composition containing a complex of mirabegron or a pharmaceutically acceptable salt thereof with sodium polystyrene sulfonate.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: August 28, 2018
    Assignee: ASTELLAS PHARMA INC.
    Inventors: Seiji Takae, Toshiro Sakai, Yuki Kasashima, Yurina Ansei, Tsuyoshi Kiyota
  • Publication number: 20180036288
    Abstract: To provide: (1) a modified release liquid (suspension) containing mirabegron, (2) a ready-to-suspend pharmaceutical composition containing mirabegron, and (3) a mirabegron-containing pharmaceutical composition that does not generate undissolved lumps, even when it is suspended at the time of use. The present invention relates to a pharmaceutical composition containing a complex of mirabegron or a pharmaceutically acceptable salt thereof with sodium polystyrene sulfonate.
    Type: Application
    Filed: March 31, 2016
    Publication date: February 8, 2018
    Applicant: ASTELLAS PHARMA INC.
    Inventors: SEIJI TAKAE, TOSHIRO SAKAI, YUKI KASASHIMA, YURINA ANSEI, TSUYOSHI KIYOTA
  • Publication number: 20150031734
    Abstract: Provided is a mirabegron-containing pharmaceutical composition in which the leakage of mirabegron can be inhibited when the pharmaceutical composition is dispersed in a liquid, and in which the change in pharmacokinetics caused by the presence or absence of food intake is decreased. The pharmaceutical composition comprises an acid addition salt of alkyl sulfuric acid and mirabegron, and a base for modified release.
    Type: Application
    Filed: March 29, 2013
    Publication date: January 29, 2015
    Inventors: Yuki Kasashima, Keiichi Yoshihara, Yoshitaka Ito, Takatsune Yoshida, Yumi Matsui
  • Patent number: 7815939
    Abstract: Regarding an object of sufficient suppression of unpleasant taste in the oral cavity and quick dissolution in the gastrointestinal tract, which is generated when a drug having a strong unpleasant taste such as bitterness, astringency and the like is applied to a quickly disintegrating preparations in the oral cavity, this invention has achieved the aforementioned object for the first time by employing a constitution of coating a coat of a water-soluble polymer and a specified ratio of a pH-independent water-insoluble polymer and hydroxypropylcellulose.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: October 19, 2010
    Assignee: Astellas Pharma Inc.
    Inventors: Yuki Kasashima, Ippei Kurimoto, Hitoshi Kawai
  • Publication number: 20090239791
    Abstract: A pharmaceutical composition comprising a lipophilic substance which inhibits IL-2 production, and a base capable of inhibiting blood exposure of the substance and delivering the substance to lymph following oral administration, is disclosed. The pharmaceutical composition can inhibit blood exposure of the substance to reduce its adverse effects, and can develop desired pharmacological effects.
    Type: Application
    Filed: October 23, 2008
    Publication date: September 24, 2009
    Applicant: Astellas Pharma Inc.
    Inventors: Takayuki Yoshida, Kiyo Nakanishi, Atsushi Maeda, Kazuhiro Sako, Yuki Kasashima, Hiromu Kondo, Tatsunobu Yoshioka, Yuuki Tsutsui
  • Publication number: 20070231399
    Abstract: Regarding an object of sufficient suppression of unpleasant taste in the oral cavity and quick dissolution in the gastrointestinal tract, which is generated when a drug having a strong unpleasant taste such as bitterness, astringency and the like is applied to a quickly disintegrating preparations in the oral cavity, this invention has achieved the aforementioned object for the first time by employing a constitution of coating a coat of a water-soluble polymer and a specified ratio of a pH-independent water-insoluble polymer and hydroxypropylcellulose.
    Type: Application
    Filed: July 19, 2006
    Publication date: October 4, 2007
    Applicant: Astellas Pharma, Inc.
    Inventors: Yuki Kasashima, Ippei Kurimoto, Hitoshi Kawai
  • Publication number: 20050175689
    Abstract: The present invention makes it possible to provide drug-containing coated microparticles for quick-disintegrating oral tablets wherein microparticles containing a drug with an unpleasant taste are coated with a film composed of (1) a pH-independent water-insoluble polymer accounting for 60% or more but less than 80% of the film and (2) a pH-independent water-soluble substance accounting for more than 20% to 40% or less of the film, these microparticles being characterized in that the rate of dissolution of the drug from the drug-containing microparticles is 0% to 10% in one minute and 80% to 100% in 30 minutes, and the average particle diameter is 350 ?m or less, in order to realize sufficient control of oral drug dissolution and fast gastrointestinal drug dissolution.
    Type: Application
    Filed: October 27, 2004
    Publication date: August 11, 2005
    Applicant: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Ippei Kurimoto, Yuki Kasashima, Hitoshi Kawai, Yuuki Takaishi, Masataka Katsuma, Hiroshi Ohi, Takayuki Yoshida, Hiroaki Tasaki