Patents by Inventor Yoshinobu Aoki

Yoshinobu Aoki 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: 8722133
    Abstract: The present invention herein provides an imidafenacin-containing orally rapidly disintegrating tablet which is excellent in the photostability. The present invention comprises the steps of: (A) granulating imidafenacin together with starch to thus give a granulated product having an imidafenacin concentration ranging from 0.001 to 3% by mass and a starch concentration ranging from 40 to 99.999% by mass; (B) covering the granulated product prepared in the step (A) with a non-cellulosic coating agent; and (C) blending the granulated product obtained in the preceding step (B) with an excipient and a disintegrating agent and then forming the resulting mixture into a tablet according to the compression molding technique.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: May 13, 2014
    Assignee: Kyorin Pharmaceutical Co., Ltd.
    Inventors: Toshihiro Ishizaki, Yoshinobu Aoki
  • Publication number: 20110002988
    Abstract: Provided herein is an imidafenacin-containing orally rapidly disintegrating tablet which is excellent in the photostability. The orally rapidly disintegrating tablets comprises (1) a granulated product containing imidafenacin or imidafenacin particles, which is or are coated with povidone or a gastric juice-soluble polymer; and (2) a composition containing an excipient and a disintegrating agent, wherein the resulting composition is subjected to compression molding.
    Type: Application
    Filed: January 30, 2009
    Publication date: January 6, 2011
    Applicant: KYORIN PHARMACEUTICAL CO., LTD.
    Inventors: Toshihiro Ishizaki, Yoshinobu Aoki
  • Publication number: 20100323090
    Abstract: The present invention herein provides an imidafenacin-containing orally rapidly disintegrating tablet which is excellent in the photostability. The present invention comprises the steps of: (A) granulating imidafenacin together with starch to thus give a granulated product having an imidafenacin concentration ranging from 0.001 to 3% by mass and a starch concentration ranging from 40 to 99.999% by mass; (B) covering the granulated product prepared in the step (A) with a non-cellulosic coating agent; and (C) blending the granulated product obtained in the preceding step (B) with an excipient and a disintegrating agent and then forming the resulting mixture into a tablet according to the compression molding technique.
    Type: Application
    Filed: January 30, 2009
    Publication date: December 23, 2010
    Applicant: KYORIN PHARMACEUTICAL CO., LTD.
    Inventors: Toshihiro Ishizaki, Yoshinobu Aoki
  • Publication number: 20080107727
    Abstract: A multiple-unit oral sustained release preparation is provided which allows controlled release of imidafenacin [4-(2-methyl-1-imidazolyl)-2,2-diphenylbutylamide]. The preparation serves to ensure a prolonged effect of imidafenacin and prevent rapid elevation in the blood levels of imidafenacin. Specifically, granules or powders comprising imidafenacin dispersed in a water-insoluble polymer or a higher alcohol are used in the preparation. These preparations achieve sustained release of imidafenacin since the molecular network structure that the water-insoluble polymer or the higher alcohol forms during the preparation of the granules or powders serves to control the rate of diffusion of imidafenacin in water. Granules comprising a core granule having two layers of an inner imidafenacin coating and an outer water-insoluble polymer coating are used in the preparation. The water-insoluble polymer coating serves to control the rate of diffusion of imidafenacin in water and ensure sustained release of imidafenacin.
    Type: Application
    Filed: January 30, 2006
    Publication date: May 8, 2008
    Inventors: Katashi Nakashima, Yoshinobu Aoki, Kazuo Kazama, Toshihiro Ishizaki
  • Patent number: 4582858
    Abstract: A process for producing a mixed alcohol by contacting a synthesis gas with a catalyst, wherein the catalyst is a solid substance prepared by:calcining a mixture of (A) a copper compound, (B) a nickel compound, and (C) a compound of at least one metal selected from the metals belonging to Groups II-VII of the Periodic Table;impregnating the above-calcined product with (D) an alkali metal compound and/or an alkaline earth metal compound;calcining the resulting mixture; andreducing the thus-calcined product.The selectivity of the mixed alcohol is high in the process of the present invention. This is one of the advantages of the present invention. Furthermore the proportion of alcohols other than methanol in the mixed alcohol is relatively high, and thus the mixed alcohol is suitable for use as an alcohol component to be compounded to gasoline.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: April 15, 1986
    Assignee: Research Association for Petroleum Alternatives Development
    Inventors: Masatoshi Shibata, Yoshinobu Aoki, Tsutomu Uchiyama
  • Patent number: 4564643
    Abstract: A process for producing a mixed alcohol by contacting a synthesis gas with a catalyst, wherein the catalyst is a solid substance prepared by:calcining a mixture of (A) a zinc compound, (B) a compound of at least one metal selected from iron, cobalt, and nickel, and (C) a compound of at least one metal selected from the metals belonging to Groups II-VII of the Periodic Table;impregnating the above-calcined product with (D) an alkali metal compound and/or an alkaline earth metal compound;calcining the resulting mixture; andreducing the thus-calcined product.The selectivity of the mixed alcohol is high in the process of the present invention. This is one of the advantages of the present invention. Furthermore, the proportion of alcohols other than methanol in the mixed alcohol is relatively high, and thus the mixed alcohol is suitable for use as an alcohol component to be compounded to gasoline.
    Type: Grant
    Filed: May 7, 1985
    Date of Patent: January 14, 1986
    Assignee: Research Association for Petroleum Alternatives Development
    Inventors: Masatoshi Shibata, Soichi Uchiyama, Yoshinobu Aoki