Patents by Inventor Tatsuya Iwanami

Tatsuya Iwanami 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).

  • Di-substituted imineheterocyclic compounds
    Patent number: 6900202
    Abstract: There is provided di-substituted iminoheterocyclic compounds of the following formula (I): in which, A is optionally substituted alkyl group, optionally substituted aryl group or optionally substituted heterocyclic group; X is oxygen atom, sulfur atom, carbon atom or nitrogen atom; the group —X—Y— represents optionally substituted alkylene or cyclic alkenylene bond; and B1 and B2 are, hydrogen atom, optionally substituted alkyl group, optionally substituted aryl group or optionally substituted heterocyclic group, independent from each other, or a pharmaceutically acceptable salt thereof. These compounds have good affinity for ?4?2 nicotinic acetylcholine receptors and activate the same to thereby exert a preventive or therapeutic effect on cerebral dysfunction.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: May 31, 2005
    Assignee: Daiichi Suntory Pharma Co., Ltd.
    Inventors: Masahiro Imoto, Tatsuya Iwanami, Minako Akabane, Yoshihiro Tani
  • Substituted 1-aza-2-imino-heterocycles and their use as nicotinic acetylcholin receptors activators
    Publication number: 20030134848
    Abstract: There is provided heterocyclic compounds of the following formula (I): 1
    Type: Application
    Filed: November 21, 2001
    Publication date: July 17, 2003
    Inventors: Masahiro Imoto, Tatsuya Iwanami, Minako Akabane, Yoshihiro Tani
  • Cyclic amidine compounds
    Publication number: 20030100769
    Abstract: There is provided cyclic amidine compounds of the following formula (I): 1
    Type: Application
    Filed: December 11, 2001
    Publication date: May 29, 2003
    Inventors: Masahiro Imoto, Tatsuya Iwanami, Minako Akabane, Yoshihiro Tani
  • Di-substituted imineheterocyclic compounds
    Publication number: 20030078259
    Abstract: There is provided di-substituted iminoheterocyclic compounds of the following formula (I): 1
    Type: Application
    Filed: November 20, 2001
    Publication date: April 24, 2003
    Inventors: Masahiro Imoto, Tatsuya Iwanami, Minako Akabane, Yoshihiro Tani
  • Heterocyclic compounds having effect of activating a4beta2 nicotinic acetylcholine receptors
    Publication number: 20020028809
    Abstract: There is provided heterocyclic compounds of the following formula (I): 1
    Type: Application
    Filed: August 22, 2001
    Publication date: March 7, 2002
    Applicant: SUNTORY LIMITED
    Inventors: Masahiro Imoto, Tatsuya Iwanami, Minako Akabane, Yoshihiro Tani