Patents by Inventor Kazuyoshi Sagara

Kazuyoshi Sagara 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).

  • Publication number: 20150045352
    Abstract: The present invention provides a composition controlling a pH range of release and/or a release rate, which contains (i) a thienotriazolodiazepine compound of the formula (I) and (ii) at least one kind of ingredient selected from the group consisting of a water-soluble polymer, an enteric polymer, a water-insoluble polymer and a porous polymer and/or a surfactant, as well as a production method thereof.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Inventors: Kazuyoshi SAGARA, Tomoyuki OMURA, Hirofumi SAMEMOTO, Hirotsugu KOMATSU
  • Patent number: 8883777
    Abstract: The present invention provides a composition controlling a pH range of release and/or a release rate, which contains (i) a thienotriazolodiazepine compound of the formula (I) and (ii) at least one kind of ingredient selected from the group consisting of a water-soluble polymer, an enteric polymer, a water-insoluble polymer and a porous polymer and/or a surfactant, as well as a production method thereof.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: November 11, 2014
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Kazuyoshi Sagara, Tomoyuki Omura, Hirofumi Samemoto, Hirotsugu Komatsu
  • Publication number: 20120202798
    Abstract: The present invention provides a composition controlling a pH range of release and/or a release rate, which contains (i) a thienotriazolodiazepine compound of the formula (I) and (ii) at least one kind of ingredient selected from the group consisting of a water-soluble polymer, an enteric polymer, a water-insoluble polymer and a porous polymer and/or a surfactant, as well as a production method thereof.
    Type: Application
    Filed: April 17, 2012
    Publication date: August 9, 2012
    Inventors: Kazuyoshi SAGARA, Tomoyuki Omura, Hirofumi Samemoto, Hirotsugu Komatsu
  • Publication number: 20090012064
    Abstract: The present invention provides a composition controlling a pH range of release and/or a release rate, which contains (i) a thienotriazolodiazepine compound of the formula (I) and (ii) at least one kind of ingredient selected from the group consisting of a water-soluble polymer, an enteric polymer, a water-insoluble polymer and a porous polymer and/or a surfactant, as well as a production method thereof.
    Type: Application
    Filed: August 5, 2008
    Publication date: January 8, 2009
    Inventors: Kazuyoshi Sagara, Tomoyuki Omura, Hirofumi Samemoto, Hirotsugu Komatsu
  • Publication number: 20030130268
    Abstract: The present invention provides a composition controlling a pH range of release and/or a release rate, which contains (i) a thienotriazolodiazepine compound of the formula (I) 1
    Type: Application
    Filed: December 16, 2002
    Publication date: July 10, 2003
    Inventors: Kazuyoshi Sagara, Tomoyuki Omura, Hirofumi Samemoto, Hirotsugu Komatsu
  • Patent number: 6586524
    Abstract: The present invention relates to cationic polymeric conjugates and methods of preparing and using them as gene carriers. The cationic polymeric conjugates comprise a poly(ethylene glycol) (PEG) grafted cationic polymer and a targeting moiety(TM), wherein 0.1 to 10 mole percent of the cationic groups of the cationic polymer are substituted with PEG-TM.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: July 1, 2003
    Assignee: Expression Genetics, Inc.
    Inventor: Kazuyoshi Sagara
  • Publication number: 20030018002
    Abstract: A polymeric conjugate for targeted gene delivery comprising a poly(ethylene glycol) (PEG) grafted cationic polymer and a targeting moiety(TM), wherein 0.1 to 10 mole percent of the cationic groups of the cationic polymer are substituted with said PEG-TM, and the grafted cationic polymer contains at least 50% unsubstituted free cationic groups. The TM is preferably lactose or galactose, which are capable of specifically targeting hepatocytes. Methods of preparing and using the TM-PEG-CP as polymeric gene carriers to efficiently transfect cells are disclosed.
    Type: Application
    Filed: July 19, 2001
    Publication date: January 23, 2003
    Applicant: Expression Genetics, Inc.
    Inventor: Kazuyoshi Sagara
  • Patent number: 5776488
    Abstract: A liposome preparation comprising a water-soluble 2'-deoxy-2'methylidenecytidine compound encapsulated therein and a compound which positively charges the surface of lipid membrane. This liposome preparation is not only expected to decrease toxicity to myeloid tissue, which is caused by a water-soluble 2'-deoxycytidine compound having anti-malignant tumor activity, but also expected to accumulate the active ingredient in tumor tissues by virtue of an improved residence thereof in blood. Therefore, the preparation can maintain or enhance anti-tumor effects without causing side effects, and is useful for the treatment of malignant tumors.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: July 7, 1998
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Yoshiyuki Mori, Kazuyoshi Sagara, Hiroaki Mizuta, Akihiro Fujii