Patents by Inventor Takaaki Sumiyoshi

Takaaki Sumiyoshi 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: 20100179118
    Abstract: The present invention relates to a compound represented by the following formula (I), which is useful as an antiallergic agent and/or an anti-inflammatory agent, or a physiologically acceptable salt thereof and the like: wherein R1 and R2 are the same or different and each is an optionally substituted aryl group and the like, R3 is a hydrogen atom, a C1-6 alkyl group and the like, R4 and R5 are the same or different and each is a hydrogen atom, a halogen atom, a hydroxy group, a C1-6 alkyl group and the like, X is a single bond or —C(R6)(R7)—, R6 and R7 are the same or different and each is a hydrogen atom, a halogen atom, an optionally substituted C1-6 alkyl group and the like, or R6 and R7 optionally form, together with the carbon atom bonded thereto, an optionally substituted C3-8 cycloalkyl group and the like, ring group A is an azetidin-1-yl group and the like, m is 0, 1 or 2, and n is 0, 1 or 2.
    Type: Application
    Filed: September 7, 2007
    Publication date: July 15, 2010
    Applicant: DAINIPPON SUMITOMO PHARMA CO., LTD.
    Inventors: Michinori Ozawa, Tomoya Shiro, Takaaki Sumiyoshi, Mari Itoh