Patents by Inventor Toshiaki Tsujino

Toshiaki Tsujino 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).

  • Nitrogen-containing heterocyclic compound or salt thereof
    Patent number: 9145415
    Abstract: The object is to provide an Fms-like tyrosine kinase 3 (FLT3) inhibitor useful as a therapeutic agent for acute myeloid leukemia (AML). A novel nitrogen-containing heterocyclic compound represented by the general formula [1] or a salt thereof is provided. The compound or a salt thereof of the present invention can be used as an active ingredient of a pharmaceutical composition for a treatment of a disease or condition relating to FLT3, such as acute myeloid leukemia (AML) and acute promyelocytic leukemia (APL).
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: September 29, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Masaru Takasaki, Toshiaki Tsujino, Shintarou Tanabe, Megumi Ookubo, Kimihiko Sato, Atsush Hirai, Daisuke Terada, Shinsuke Inuki, Shinsuke Mizumoto
  • NITROGEN-CONTAINING HETEROCYCLIC COMPOUND OR SALT THEREOF
    Publication number: 20150045339
    Abstract: The object is to provide an Fms-like tyrosine kinase 3 (FLT3) inhibitor useful as a therapeutic agent for acute myeloid leukemia (AML). A novel nitrogen-containing heterocyclic compound represented by the general formula [1] or a salt thereof is provided. The compound or a salt thereof of the present invention can be used as an active ingredient of a pharmaceutical composition for a treatment of a disease or condition relating to FLT3, such as acute myeloid leukemia (AML) and acute promyelocytic leukemia (APL).
    Type: Application
    Filed: October 16, 2014
    Publication date: February 12, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Masaru TAKASAKI, Toshiaki TSUJINO, Shintarou TANABE, Megumi OOKUBO, Kimihiko SATO, Atsushi HIRAI, Daisuke TERADA, Shinsuke INUKI, Shinsuke MIZUMOTO
  • Fused imidazole derivative
    Patent number: 8030327
    Abstract: The present invention relates to a compound represented by the Formula [I]: Wherein: the A ring is a 5-membered aromatic heterocyclic group containing at least one hetero atom selected from a nitrogen atom, and the like; A1 and A2, are each a nitrogen atom, and the like; X2, X3, X4, and X5 are all carbon atoms, or alternatively any one of X2, X3, X4, and X5 is a nitrogen atom and the rest are all carbon atoms; R1 is a hydrogen atom, or the like; R2, R3, R4, and R5, are each a hydrogen atom, or the like; R6 and R6?, are each a hydrogen atom, and the like; R7 is an aryl group and the like; and R8 is an amino group or a hydroxy group, or a pharmaceutically acceptable salt or ester thereof.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: October 4, 2011
    Assignee: MDS K.K.
    Inventors: Yoshiyuki Sato, Hideki Kurihara, Kaori Kamijo, Yu Onozaki, Toshiaki Tsujino, Tetsuya Sugimoto, Akiko Watanabe, Morihiro Mitsuya, Hideya Komatani
  • ALKYLAMINOPYRIDINE DERIVATIVE
    Publication number: 20110015181
    Abstract: The present invention relates to a compound that is useful for treatment of, for example, hypertension, arteriosclerosis, bulimia and obesity because of having an antagonistic action to a neuropeptide Y receptor and is represented by formula (I) [wherein R1 represents hydrogen, cyano, or the like; R represents a group represented by formula (II); X1 represents C1-4 lower alkylene or the like; X2 represents lower alkylene or the like; and Het represents a 5-membered heteroaromatic ring that has at least one nitrogen atom and, in addition, one or two hetero atoms selected from the group consisting of nitrogen, sulfur and oxygen atoms] or to a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: March 4, 2009
    Publication date: January 20, 2011
    Inventors: Makoto Ando, Hirokatsu Ito, Minoru Kameda, Hiroshi Kawamoto, Kensuke Kobayashi, Hiroshi Miyazoe, Chisato Nakama, Nagaaki Sato, Toshiaki Tsujino
  • Novel Fused Imidazole Derivative
    Publication number: 20080103136
    Abstract: The present invention relates to a compound represented by the Formula [I]: Wherein: the A ring is a 5-membered aromatic heterocyclic group containing at least one hetero atom selected from a nitrogen atom, and the like; A1 and A2, are each a nitrogen atom, and the like; X2, X3, X4, and X5 are all carbon atoms, or alternatively any one of X2, X3, X4, and X5 is a nitrogen atom and the rest are all carbon atoms; R1 is a hydrogen atom, or the like; R2, R3, R4, and R5, are each a hydrogen atom, or the like; R6 and R6?, are each a hydrogen atom, and the like; R7 is an aryl group and the like; and R8 is an amino group or a hydroxy group, or a pharmaceutically acceptable salt or ester thereof.
    Type: Application
    Filed: November 7, 2005
    Publication date: May 1, 2008
    Inventors: Yoshiyuki Sato, Hideki Kurihara, Kaori Kamijo, Yu Onozaki, Toshiaki Tsujino, Tetsuya Sugimoto, Akiko Watanabe, Morihiro Mitsuya, Hideya Komatani