Patents by Inventor Akiko Takagi

Akiko Takagi 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: 8173633
    Abstract: Disclosed is a protein kinase C enhancer characterized by containing a benzothiophene alkyl ether derivative represented by the general formula below or a salt thereof. (In the formula, R1 and R2 may be the same or different and represent one or more groups selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkenyl group, an amino group, a heterocyclic group, an optionally protected amino group, a hydroxyl group, a carboxyl group, an oxo group and the like; R3 represents an alkylamino group, an amino group, a hydroxyl group or the like; and m and n may be the same or different and represent an integer of 1-6.) This protein kinase C enhancer is useful for treatment or prevention of various diseases associated with protein kinase C.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: May 8, 2012
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Tetsuo Fukushima, Akiko Takagi, Nobuo Terashima
  • Publication number: 20110245228
    Abstract: Disclosed is a protein kinase C enhancer characterized by containing a benzothiophene alkyl ether derivative represented by the general formula below or a salt thereof. (In the formula, R1 and R2 may be the same or different and represent one or more groups selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkenyl group, an amino group, a heterocyclic group, an optionally protected amino group, a hydroxyl group, a carboxyl group, an oxo group and the like; R3 represents an alkylamino group, an amino group, a hydroxyl group or the like; and m and n may be the same or different and represent an integer of 1-6.) This protein kinase C enhancer is useful for treatment or prevention of various diseases associated with protein kinase C.
    Type: Application
    Filed: June 17, 2011
    Publication date: October 6, 2011
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Tetsuo FUKUSHIMA, Akiko Takagi, Nobuo Terashima
  • Publication number: 20100184997
    Abstract: Disclosed is a protein kinase C enhancer characterized by containing a benzothiophene alkyl ether derivative represented by the general formula below or a salt thereof. (In the formula, R1 and R2 may be the same or different and represent one or more groups selected from a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an alkenyl group, an amino group, a heterocyclic group, an optionally protected amino group, a hydroxyl group, a carboxyl group, an oxo group and the like; R3 represents an alkylamino group, an amino group, a hydroxyl group or the like; and m and n may be the same or different and represent an integer of 1-6.) This protein kinase C enhancer is useful for treatment or prevention of various diseases associated with protein kinase C.
    Type: Application
    Filed: August 2, 2007
    Publication date: July 22, 2010
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Tetsuo Fukushima, Akiko Takagi, Nobuo Terashima
  • Patent number: 5011973
    Abstract: The process for producing bischoline-disulfonate derivatives of Formula (I) ##STR1## useful for enhancing the digestive function comprising reacting, in the presence of an organic solvent, a trimethylammonium salt derivative of Formula (II) ##STR2## wherein R.sup.1 and R.sup.2 are individually lower alkyl and X is a group removable by a disulfonic acid of Formula (III)R(SO.sub.3 H).sub.2 (III)wherein R is a naphthylene, or an organic base salt of said acid.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: April 30, 1991
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Yasuyuki Suzuki, Noboru Takagawa, Mikio Kawabata, Mariko Hayashi, Akiko Takagi, Takako Wakamiya, Isamu Saikawa