Patents by Inventor Shigeru Chikase

Shigeru Chikase 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: 8648065
    Abstract: An objective of the present invention is to provide a cefditoren pivoxil pharmaceutical preparation which can safely be administered to a patient and not only improves wettability of cefditoren pivoxil, but also further improves absorbability through the intestinal tracts by maintaining amorphous particles having a high oral absorbability in a liquid for a long period of time. The present invention is a pharmaceutical composition comprising amorphous cefditoren pivoxil and a sucrose fatty acid ester, which is obtainable by mixing or wet-granulating particles containing amorphous cefditoren pivoxil with the sucrose fatty acid ester while amorphous cefditoren pivoxil maintains its particle state.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: February 11, 2014
    Assignee: Meiji Seika Pharma Co., Ltd.
    Inventors: Yukiko Yokoi, Shigeru Chikase, Hiroyuki Yamaguchi
  • Publication number: 20110294901
    Abstract: An objective of the present invention is to provide a composition that has improved oral absorption and comprises a slightly soluble drug, and to provide a process for producing the same. According to the present invention, there is provided a finely pulverized composition comprising a slightly soluble drug such as 22?-methoxyolean-12-ene-3?, 24(4?)-diol and a hydrophilic surfactant. According to the present invention, there is also provided a process for producing the finely pulverized composition according to the present invention, characterized in that, after the dispersion of a slightly soluble drug and a hydrophilic surfactant in a solvent, the dispersion is pulverized with a high-pressure homogenizer.
    Type: Application
    Filed: January 29, 2010
    Publication date: December 1, 2011
    Inventors: Shigeru Chikase, Dai Kawada
  • Publication number: 20070053973
    Abstract: According to the present invention, there is provided a solid dispersion composition which can maintain amorphous cefditoren pivoxil in a suspension for a long period of time. The present invention is a solid dispersion composition comprising at least 0.1 mg of a sugar ester fatty acid on the basis of an amount equivalent to 100 mg efficacy of cefditoren pivoxil.
    Type: Application
    Filed: October 7, 2004
    Publication date: March 8, 2007
    Inventors: Shigeru Chikase, Yukiko Yokoi
  • Publication number: 20060051411
    Abstract: An objective of the present invention is to provide a cefditoren pivoxil pharmaceutical preparation which can safely be administered to a patient and not only improves wettability of cefditoren pivoxil, but also further improves absorbability through the intestinal tracts by maintaining amorphous particles having a high oral absorbability in a liquid for a long period of time. The present invention is a pharmaceutical composition comprising amorphous cefditoren pivoxil and a sugar ester fatty acid, which is obtainable by mixing or wet-granulating particles containing amorphous cefditoren pivoxil with the sugar ester fatty acid while amorphous cefditoren pivoxil maintains its particle state.
    Type: Application
    Filed: April 28, 2003
    Publication date: March 9, 2006
    Inventors: Yukiko Yokoi, Shigeru Chikase, Hiroyuki Yamaguchi