Patents by Inventor Atsushi Tengeiji

Atsushi Tengeiji 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).

  • Chromone derivative having osteogenesis promoting effect
    Patent number: 9221811
    Abstract: Compounds or pharmacologically acceptable salts thereof for promoting osteogenesis, improving bone metabolism, preventing or treating bone fracture, preventing or treating a disease associated with bone metabolism, or in the field of orthopedics for the promotion of healing of bone fracture, a bone defect, and bone diseases such as osteoarthritis as well as in the field of dentistry for the treatment of periodontal disease and the stabilization of artificial tooth root.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: December 29, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Katsuhiro Kawakami, Toshihiro Kiho, Atsushi Tengeiji, Kentoku Gotanda, Kazumasa Aoki, Kazuki Yano
  • CHROMONE DERIVATIVE HAVING OSTEOGENESIS PROMOTING EFFECT
    Publication number: 20140349991
    Abstract: Compounds or pharmacologically acceptable salts thereof for promoting osteogenesis, improving bone metabolism, preventing or treating bone fracture, preventing or treating a disease associated with bone metabolism, or in the field of orthopedics for the promotion of healing of bone fracture, a bone defect, and bone diseases such as osteoarthritis as well as in the field of dentistry for the treatment of periodontal disease and the stabilization of artificial tooth root.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 27, 2014
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Katsuhiro Kawakami, Toshihiro Kiho, Atsushi Tengeiji, Kentoku Gotanda, Kazumasa Aoki, Kazuki Yano
  • Pyrazolopyrimidine derivative
    Patent number: 8158638
    Abstract: Problem to be Solved To provide a novel compound inhibiting the effect of HSP90, in particular a novel compound inhibiting the function of HSP90 as a chaperone protein and having antitumor activity. Solution The present invention provides a pyrazolopyrimidine compound represented by the formula (1) having various substituents which inhibits the ATPase activity of HSP90 and which has antitumor activity, an HSP90 inhibitor comprising the compound represented by the formula (1), a medicament comprising the compound represented by the formula (1), an anticancer agent comprising the compound represented by the formula (1), a pharmaceutical composition comprising the compound represented by the formula (1) and a method for treating cancer using the compound represented by the formula (1).
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: April 17, 2012
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Satoru Ohsuki, Atsushi Tengeiji, Masahiro Ikeda, Yoshihiro Shibata, Chikahiro Nagata, Takashi Shimada
  • PYRAZOLOPYRIMIDINE DERIVATIVE
    Publication number: 20100113410
    Abstract: Problem to be Solved To provide a novel compound inhibiting the effect of HSP90, in particular a novel compound inhibiting the function of HSP90 as a chaperone protein and having antitumor activity. Solution The present invention provides a pyrazolopyrimidine compound represented by the formula (1) having various substituents which inhibits the ATPase activity of HSP90 and which has antitumor activity, an HSP90 inhibitor comprising the compound represented by the formula (1), a medicament comprising the compound represented by the formula (1), an anticancer agent comprising the compound represented by the formula (1), a pharmaceutical composition comprising the compound represented by the formula (1) and a method for treating cancer using the compound represented by the formula (1).
    Type: Application
    Filed: September 14, 2007
    Publication date: May 6, 2010
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Satoru Ohsuki, Atsushi Tengeiji, Masahiro Ikeda, Yoshihiro Shibata, Chikahiro Nagata, Takashi Shimada