Patents by Inventor Tuyoshi Nishitoba

Tuyoshi Nishitoba 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).

  • Quinoline derivatives and quinazoline derivatives inhibiting autophosphorylation of macrophage colony stimulating factor receptor
    Patent number: 7598258
    Abstract: An objective of the present invention is to provide compounds which have inhibitory activity against autophosphorylation of macrophage colony-stimulating factor receptors. The compounds of the present invention are represented by formula (I) and salt and solvate thereof: wherein X represents CH or N; Z represents O or S; R1, R2, and R3 represent H, optionally substituted alkoxy or the like; R4 represents H; R5, R6, R7, and R8 represent H, halogen, alkyl, alkoxy, trifluoromethyl or the like; R9 and R10 represent H, alkyl or the like; and any one of R11 and R12 represents H with the other representing alkyl and R13 represents an optionally substituted carbocyclic or heterocyclic ring or the like, or R11 represents H and R12 and R13 combine together to form a bicyclic carbocyclic ring.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: October 6, 2009
    Assignee: Kirin Beer Kabushiki Kaisha
    Inventors: Kazuo Kubo, Hiroaki Ohno, Toshiyuki Isoe, Tuyoshi Nishitoba