Patents by Inventor Tatsunobu Yoshioka

Tatsunobu Yoshioka 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: 9918970
    Abstract: Disclosed is a pharmaceutical composition comprising a complex between solifenacin or a pharmaceutically acceptable salt thereof and an ion exchange resin, and an acrylic based polymer.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: March 20, 2018
    Assignee: Astellas Pharma Inc.
    Inventors: Tatsunobu Yoshioka, Makoto Murai, Hiroaki Tasaki
  • Publication number: 20110288118
    Abstract: Disclosed is a pharmaceutical composition comprising a complex between solifenacin or a pharmaceutically acceptable salt thereof and an ion exchange resin, and an acrylic based polymer.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 24, 2011
    Applicant: Astellas Pharma Inc.
    Inventors: Tatsunobu YOSHIOKA, Makoto Murai, Hiroaki Tasaki
  • 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: 20080199522
    Abstract: The present invention was completed based on these discoveries and relates to in a hydrogel-forming compression-coated solid pharmaceutical preparation comprising a core tablet containing drug and outer layer made from hydrogel-forming polymer substance and hydrophilic base, the improvement, a timed-release compression-coated solid composition for oral administration, said composition comprising (1) drug and freely erodible filler are mixed with the core tablet, (2) the percentage erosion of the core tablet is approximately 40 to approximately 90%, and (3) the outer layer essentially does not contain the same drug as the above-mentioned drug. By releasing a drug after a specific lag time, it becomes possible to effectively deliver a drug to a specific site in the digestive tract.
    Type: Application
    Filed: August 20, 2007
    Publication date: August 21, 2008
    Applicant: Astellas Pharma, Inc.
    Inventors: Toyohiro Sawada, Kazuhiro Sako, Tatsunobu Yoshioka, Shunsuke Watanabe
  • Publication number: 20080103124
    Abstract: A pharmaceutical composition with an enhanced bioavailability, particularly improved an oral absorption, comprising cefdinir or a pharmaceutically acceptable salt thereof and aminoalkyl methacrylate copolymer E is disclosed.
    Type: Application
    Filed: October 24, 2007
    Publication date: May 1, 2008
    Inventors: Tatsunobu Yoshioka, Yoshiyuki Murakami, Noboru Yamashita, Shigemitsu Tomei, Katsumi Saito, Akira Takagi
  • Publication number: 20060292221
    Abstract: The present invention was completed based on these discoveries and relates to in a hydrogel-forming compression-coated solid pharmaceutical preparation comprising a core tablet containing drug and outer layer made from hydrogel-forming polymer substance and hydrophilic base, the improvement, a timed-release compression-coated solid composition for oral administration, said composition comprising (1) drug and freely erodible filler are mixed with the core tablet, (2) the percentage erosion of the core tablet is approximately 40 to approximately 90%, and (3) the outer layer essentially does not contain the same drug as the above-mentioned drug. By releasing a drug after a specific lag time, it becomes possible to effectively deliver a drug to a specific site in the digestive tract.
    Type: Application
    Filed: August 9, 2006
    Publication date: December 28, 2006
    Applicant: Astellas Pharma, Inc.
    Inventors: Toyohiro Sawada, Kazuhiro Sako, Tatsunobu Yoshioka, Shunsuke Watanabe
  • Publication number: 20050163840
    Abstract: The present invention is a system for averting undesirable pharmacokinetic drug interaction between a drug and concomitant drug(s), which consists of controlling the in vivo release time and/or release site of the drug and/or the concomitant drug.
    Type: Application
    Filed: June 10, 2004
    Publication date: July 28, 2005
    Applicant: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Toyohiro Sawada, Kazuhiro Sako, Tatsunobu Yoshioka, Shunsuke Watanabe
  • Patent number: 6761895
    Abstract: The present invention is a system for averting undesirable pharmacokinetic drug interaction between a drug and concomitant drug(s), which consists of controlling the in vivo release time and/or release site of the drug and/or the concomitant drug.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: July 13, 2004
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Toyohiro Sawada, Kazuhiro Sako, Tatsunobu Yoshioka, Shunsuke Watanabe
  • Patent number: 6562375
    Abstract: The present invention is to provide a stable pharmaceutical composition for oral use and preparation thereof in which changes are prevented in drug release at stored even under the exposure to light by adding yellow ferric oxide and/or red ferric oxide in a matrix type sustained-release preparation containing a drug, hydrophilic base, and polyethylene oxide. The present invention is to further provide a method for preventing changes in drug release at stored under the exposure to light in a matrix type sustained-release preparation containing a drug, hydrophilic base, and polyethylene oxide. The quality assurance period of the product can be prolonged and the product value can be improved by the present invention.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: May 13, 2003
    Assignee: Yamanouchi Pharmaceuticals, Co., Ltd.
    Inventors: Kazuhiro Sako, Toyohiro Sawada, Keiichi Yoshihara, Tatsunobu Yoshioka, Shunsuke Watanabe
  • Publication number: 20020028240
    Abstract: The present invention was completed based on these discoveries and relates to in a hydrogel-forming compression-coated solid pharmaceutical preparation comprising a core tablet containing drug and outer layer made from hydrogel-forming polymer substance and hydrophilic base, the improvement, a timed-release compression-coated solid composition for oral administration, said composition comprising (1) drug and freely erodible filler are mixed with the core tablet, (2) the percentage erosion of the core tablet is approximately 40 to approximately 90%, and (3) the outer layer essentially does not contain the same drug as the above-mentioned drug. By releasing a drug after a specific lag time, it becomes possible to effectively deliver a drug to a specific site in the digestive tract.
    Type: Application
    Filed: April 12, 2001
    Publication date: March 7, 2002
    Inventors: Toyohiro Sawada, Kazuhiro Sako, Tatsunobu Yoshioka, Shunsuke Watanabe
  • Publication number: 20020022054
    Abstract: The present invention is a system for averting undesirable pharmacokinetic drug interaction between a drug and concomitant drug(s), which consists of controlling the in vivo release time and/or release site of the drug and/or the concomitant drug.
    Type: Application
    Filed: April 12, 2001
    Publication date: February 21, 2002
    Inventors: Toyohiro Sawada, Kazuhiro Sako, Tatsunobu Yoshioka, Shunsuke Watanable