Patents by Inventor Okihisa Tokuda

Okihisa Tokuda 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).

  • Spiroindoline compound, and medicinal agent comprising same
    Patent number: 8921576
    Abstract: The present invention provides a novel compound represented by a general formula (1) as shown below, which has a glucokinase-activating action in the liver and pancreatic ?-cells and which is useful as an agent for preventing and/or treating diseases caused by hyperglycemia, such as diabetes. A spiroindoline compound represented by the general formula (1), or a salt thereof, or a solvate of the compound or the salt: [wherein ring A represents a nitrogen-containing 5-10 membered heteroaryl group; R1 and R2, which are the same or different, each represent a hydrogen atom, a halogen atom, a halo C1-6 alkyl group, a C6-10 aryl group, a cyano group, a C1-6 alkyl group optionally having a substituent, a C2-6 alkenyl group optionally having a substituent, etc.; R3 represents a hydrogen atom, a C1-6 alkyl group optionally having a substituent, etc.; and R4 represents a hydrogen atom, a halogen atom, a C1-6 alkyl group optionally having a substituent, etc.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: December 30, 2014
    Assignee: Kowa Company, Ltd.
    Inventors: Takahisa Ogamino, Yukiyoshi Yamazaki, Shin Tanikawa, Ayumu Okuda, Tomoaki Fukuda, Okihisa Tokuda, Yoshiharu Miyake, Shinsuke Itoh, Hiroyuki Ishiwata
  • NOVEL SPIROINDOLINE COMPOUND, AND MEDICINAL AGENT COMPRISING SAME
    Publication number: 20140309207
    Abstract: The present invention provides a novel compound represented by a general formula (1) as shown below, which has a glucokinase-activating action in the liver and pancreatic ?-cells and which is useful as an agent for preventing and/or treating diseases caused by hyperglycemia, such as diabetes. A spiroindoline compound represented by the general formula (1), or a salt thereof, or a solvate of the compound or the salt: [wherein ring A represents a nitrogen-containing 5-10 membered heteroaryl group; R1 and R2, which are the same or different, each represent a hydrogen atom, a halogen atom, a halo C1-6 alkyl group, a C6-10 aryl group, a cyano group, a C1-6 alkyl group optionally having a substituent, a C2-6 alkenyl group optionally having a substituent, etc.; R3 represents a hydrogen atom, a C1-6 alkyl group optionally having a substituent, etc.; and R4 represents a hydrogen atom, a halogen atom, a C1-6 alkyl group optionally having a substituent, etc.
    Type: Application
    Filed: October 18, 2012
    Publication date: October 16, 2014
    Inventors: Takahisa Ogamino, Yukiyoshi Yamazaki, Shin Tanikawa, Ayumu Okuda, Tomoaki Fukuda, Okihisa Tokuda, Yoshiharu Miyake, Shinsuke Itoh, Hiroyuki Ishiwata