Patents by Inventor Takayuki Ishizawa

Takayuki Ishizawa 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).

  • Amorphous substance of tricyclic triazolobenzazepine derivative
    Patent number: 7229985
    Abstract: Disclosed are 2-(1-isopropoxycarbonyloxy-2-methylpropyl)-7,8-dimethoxy-4(5H), 10-dioxo-2H-1,2,3-triazolo[4,5-c][1]benzazepine, which has been rendered amorphous and possesses improved absorption and dissoluvability, and a pharmaceutical composition comprising the same. Also disclosed are processes for producing 2-(1-isopropoxycarbonyloxy-2-methylpropyl)-7,8-dimethoxy-4(5H), 10-dioxo-2H-1,2,3-triazolo[4,5-c][1]benzazepine, which has been rendered amorphous, and a pharmaceutical composition comprising the same.
    Type: Grant
    Filed: December 25, 2002
    Date of Patent: June 12, 2007
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Toyoaki Ishikura, Takayuki Ishizawa, Kenji Suemune, Mayumi Ishiwata, Chikako Udagawa
  • Amorphous substance of tricyclic triazolobenzazepine derivative
    Publication number: 20050130955
    Abstract: Disclosed are 2-(1-isopropoxycarbonyloxy-2-methylpropyl)-7,8-dimethoxy-4(5H), 10-dioxo-2H-1,2,3-triazolo[4,5-c][1]benzazepine, which has been rendered amorphous and possesses improved absorption and dissoluvability, and a pharmaceutical composition comprising the same. Also disclosed are processes for producing 2-(1-isopropoxycarbonyloxy-2-methylpropyl)-7,8-dimethoxy-4(5H), 10-dioxo-2H-1,2, 3-triazolo[4,5-c][1]benzazepine, which has been rendered amorphous, and a pharmaceutical composition comprising the same.
    Type: Application
    Filed: December 25, 2002
    Publication date: June 16, 2005
    Applicant: MEIJI SEIKA KAISHA, LTD
    Inventors: Toyoaki Ishikura, Takayuki Ishizawa, Kenji Suemune, Mayumi Ishiwata, Chikako Udagawa
  • Reconfigurable toy vehicle
    Patent number: D301262
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: May 23, 1989
    Assignee: Takara Co., Ltd.
    Inventor: Takayuki Ishizawa
  • Reconfigurable toy vehicle
    Patent number: D301263
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: May 23, 1989
    Assignee: Takara Co. Ltd.
    Inventor: Takayuki Ishizawa
  • Reconfigurable toy truck
    Patent number: D301264
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: May 23, 1989
    Assignee: Takara Co., Ltd.
    Inventor: Takayuki Ishizawa
  • Reconfigurable toy vehicle
    Patent number: D301265
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: May 23, 1989
    Assignee: Takara Co., Ltd.
    Inventor: Takayuki Ishizawa
  • Reconfigurable toy vehicle
    Patent number: D301266
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: May 23, 1989
    Assignee: Takara Co., Ltd
    Inventor: Takayuki Ishizawa
  • Reconfigurable toy vehicle
    Patent number: D301349
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: May 30, 1989
    Assignee: Takara Co., Ltd.
    Inventor: Takayuki Ishizawa
  • Reconfigurable toy jet-plane
    Patent number: D302449
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: July 25, 1989
    Assignee: Takara Co., Ltd.
    Inventor: Takayuki Ishizawa
  • Reconfigurable double headed figure toy
    Patent number: D305050
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: December 12, 1989
    Assignee: Takara Co., Ltd.
    Inventor: Takayuki Ishizawa
  • Reconfigurable toy insect
    Patent number: D305054
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: December 12, 1989
    Assignee: Takara Co., Ltd.
    Inventor: Takayuki Ishizawa
  • Reconfigurable toy tiger
    Patent number: D305255
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: December 26, 1989
    Assignee: Takara Co., Ltd.
    Inventor: Takayuki Ishizawa