Patents by Inventor Koji Fuji

Koji Fuji 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: 20220287748
    Abstract: A prophylactic or therapeutic agent for spinal muscular atrophy according to the present invention includes a compound represented by the formula (I) or a salt thereof: wherein: W1, W2, and W3 are each independently selected from the group consisting of C—R2, C—R3, C—Rc, and C—Rd, and are defined by one of the followings (i) to (iv): (i) when W3 is C—R2, then W1 is C—R3, W2 is C—Rc or N, and R1 is a hydrogen atom; (ii) when W3 is C—R3, then W1 is C—R2, W2 is C—Rc or N, and R1 is a hydrogen atom, C1-8 alkyl, or C1-8 alkoxy; (iii) when W1 is C—R2, then W2 is C—Rc or N, W3 is C—Rd, and R1 is an aliphatic heterocycle containing one or more nitrogen atoms, the aliphatic heterocycle being optionally substituted with a non-aromatic substituent; and (iv) when W2 is C—R2, W1 is C—Rc, W3 is C—Rd, and R1 is an aliphatic heterocycle containing one or more nitrogen atoms, the aliphatic heterocycle being optionally substituted with a non-aromatic substituent; R2 is a 6- or more membered aromatic ring optionally s
    Type: Application
    Filed: June 27, 2019
    Publication date: September 15, 2022
    Inventors: Koji Fuji, Takeshi Yamasaki, Shunya Suzuki, Koji Ono, Hiroki Takahagi
  • Patent number: 7998968
    Abstract: A compound represented by the formula (I): wherein R1 is an oxo group, ?N—R or the like; a group represented by the formula: is a group represented by the formula: R2 is a group represented by the formula: R3 and R4 are each H, or C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, C1-C6 alkylamino, di(C1-C6)alkylamino or C1-C6 alkylthio, each of which is optionally substituted; and R5 is H, or C1-C6 alkyl, C2-C6 alkenyl, cyclic group, each of which is optionally substituted, —CO—R8 or —O—R8?, or a salt thereof. For example, the compound may be substituted pyrimidines and pharmaceutical compositions of the formula (I) where X=—CR3; X1=—CR2 or —NR2; and X2=—CR5 or —NR5. The compound of the present invention is useful as a drug for the prophylaxis or treatment of cardiovascular diseases, metabolic diseases and/or central nervous system diseases.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: August 16, 2011
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Takanobu Kuroita, Hiroki Sakamoto, Hideyuki Igawa, Minoru Sasaki, Kouhei Asano, Tsuyoshi Maekawa, Koji Fuji
  • Publication number: 20110112120
    Abstract: A compound represented by the formula (I): wherein R1 is an oxo group, ?N—R or the like; a group represented by the formula: is a group represented by the formula: R2 is a group represented by the formula: R3 and R4 are each H, or C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, C1-C6 alkylamino, di(C1-C6)alkylamino or C1-C6 alkylthio, each of which is optionally substituted; and R5 is H, or C1-C6 alkyl, C2-C6 alkenyl, cyclic group, each of which is optionally substituted, —CO—R8 or —O—R8?, or a salt thereof. The compound of the present invention is useful as a drug for the prophylaxis or treatment of cardiovascular diseases, metabolic diseases and/or central nervous system diseases.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 12, 2011
    Inventors: Takanobu Kuroita, Hiroki Sakamoto, Hideyuki Igawa, Minoru Sasaki, Kouhei Asano, Tsuyoshi Maekawa, Koji Fuji
  • Patent number: 7803940
    Abstract: A compound represented by the formula (I): wherein R1 is an oxo group, ?N—R or the like; a group represented by the formula: is a group represented by the formula: R2 is a group represented by the formula: R3 and R4 are each H, or C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, C1-C6 alkylamino, di(C1-C6)alkylamino or C1-C6 alkylthio, each of which is optionally substituted; and R5 is H, or C1-C6 alkyl, C2-C6 alkenyl, cyclic group, each of which is optionally substituted, —CO—R8 or —O—R8?, or a salt thereof. The compound of the present invention is useful as a drug for the prophylaxis or treatment of cardiovascular diseases, metabolic diseases and/or central nervous system diseases.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: September 28, 2010
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Takanobu Kuroita, Hiroki Sakamoto, Hideyuki Igawa, Minoru Sasaki, Kouhei Asano, Tsuyoshi Maekawa, Koji Fuji
  • Publication number: 20100113780
    Abstract: A compound represented by the formula (I): wherein R1 is an oxo group, ?N—R or the like; a group represented by the formula: is a group represented by the formula: R2 is a group represented by the formula: R3 and R4 are each H, or C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, C1-C6 alkylamino, di(C1-C6)alkylamino or C1-C6 alkylthio, each of which is optionally substituted; and R5 is H, or C1-C6 alkyl, C2-C6 alkenyl, cyclic group, each of which is optionally substituted, —CO—R8 or —O—R8?, or a salt thereof. The compound of the present invention is useful as a drug for the prophylaxis or treatment of cardiovascular diseases, metabolic diseases and/or central nervous system diseases.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 6, 2010
    Inventors: Takanobu Kuroita, Hiroki Sakamoto, Hideyuki Igawa, Minoru Sasaki, Kouhei Asano, Tsuyoshi Maekawa, Koji Fuji
  • Publication number: 20100105709
    Abstract: A compound represented by the formula (I): wherein R1 is an oxo group, ?N—R or the like; a group represented by the formula: is a group represented by the formula: R2 is a group represented by the formula: R3 and R4 are each H, or C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, C1-C6 alkylamino, di(C1-C6)alkylamino or C1-C6 alkylthio, each of which is optionally substituted; and R5 is H, or C1-C6 alkyl, C2-C6 alkenyl, cyclic group, each of which is optionally substituted, —CO—R8 or —O—R8?, or a salt thereof. The compound of the present invention is useful as a drug for the prophylaxis or treatment of cardiovascular diseases, metabolic diseases and/or central nervous system diseases.
    Type: Application
    Filed: November 25, 2009
    Publication date: April 29, 2010
    Inventors: Takanobu Kuroita, Hiroki Sakamoto, Hideyuki Igawa, Minoru Sasaki, Kouhei Asano, Tsuyoshi Maekawa, Koji Fuji
  • Publication number: 20100094000
    Abstract: The present invention relates to wherein each symbol is as defined in the specification. The compound has a superior mineralocorticoid receptor antagonistic action and is useful as an agent for the prophylaxis or treatment of a disease or condition mediated by the mineralocorticoid receptor activation.
    Type: Application
    Filed: September 2, 2009
    Publication date: April 15, 2010
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Shoji FUKUMOTO, Norio OHYABU, Taiichi OHRA, Takahiro SUGIMOTO, Tomoaki HASUI, Koji FUJI, Christopher S. SIEDEM, Cassandra GAUTHIER
  • Publication number: 20090176812
    Abstract: A compound represented by the formula (I): wherein R1 is an oxo group, ?N—R or the like; a group represented by the formula: is a group represented by the formula: R2 is a group represented by the formula: R3 and R4 are each H, or C1-C6 alkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, C1-C6 alkylamino, di(C1-C6)alkylamino or C1-C6 alkylthio, each of which is optionally substituted; and R5 is H, or C1-C6 alkyl, C2-C6 alkenyl, cyclic group, each of which is optionally substituted, —CO—R8 or —O—R8?, or a salt thereof. The compound of the present invention is useful as a drug for the prophylaxis or treatment of cardiovascular diseases, metabolic diseases and/or central nervous system diseases.
    Type: Application
    Filed: May 2, 2008
    Publication date: July 9, 2009
    Inventors: Takanobu Kuroita, Hiroki Sakamoto, Hideyuki Igawa, Minoru Sasaki, Kouhei Asano, Tsuyoshi Maekawa, Koji Fuji