Patents by Inventor Nobuyuki Ae

Nobuyuki Ae 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).

  • Process of a quaternary ammonium salt
    Patent number: 9309255
    Abstract: The present invention relates to a novel process for preparing quaternary ammonium salt derivatives.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: April 12, 2016
    Assignee: SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Nobuyuki Ae, Yuji Fujiwara
  • PROCESS OF A QUATERNARY AMMONIUM SALT
    Publication number: 20150087830
    Abstract: The present invention relates to a novel process for preparing quaternary ammonium salt derivatives.
    Type: Application
    Filed: November 7, 2014
    Publication date: March 26, 2015
    Inventors: Nobuyuki AE, Yuji FUJIWARA
  • Process of a quaternary ammonium salt
    Patent number: 8921551
    Abstract: The present invention relates to a novel process for preparing quaternary ammonium salt derivatives.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: December 30, 2014
    Assignee: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Nobuyuki Ae, Yuji Fujiwara
  • PROCESS OF PREPARING A QUATERNARY AMMONIUM SALT USING PHOSPHATE
    Publication number: 20140256939
    Abstract: The present invention relates to a novel process for preparing quaternary ammonium salt derivatives.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Nobuyuki AE, Yuji FUJIWARA
  • PROCESS OF A QUATERNARY AMMONIUM SALT USING PHOSPHATE
    Publication number: 20140031548
    Abstract: The present invention relates to a novel process for preparing quaternary ammonium salt derivatives.
    Type: Application
    Filed: September 30, 2013
    Publication date: January 30, 2014
    Inventors: Nobuyuki AE, Yuji Fujiwara
  • Process of a quaternary ammonium salt using phosphate
    Patent number: 8586737
    Abstract: The present invention relates to a novel process for preparing quaternary ammonium salt derivatives.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: November 19, 2013
    Assignee: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Nobuyuki AE, Yuji Fujiwara
  • PROCESS OF A QUATERNARY AMMONIUM SALT USING PHOSPHATE
    Publication number: 20110263848
    Abstract: The present invention relates to a novel process for preparing quaternary ammonium salt derivatives.
    Type: Application
    Filed: April 26, 2011
    Publication date: October 27, 2011
    Applicant: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Nobuyuki AE, Yuji Fujiwara
  • PROCESS OF A QUATERNARY AMMONIUM SALT
    Publication number: 20110263847
    Abstract: The present invention relates to a novel process for preparing quaternary ammonium salt derivatives.
    Type: Application
    Filed: April 26, 2011
    Publication date: October 27, 2011
    Applicant: Dainippon Sumitomo Pharma Co, Ltd.
    Inventors: Nobuyuki AE, Yuji Fujiwara
  • Tricyclic indole-2-carboxylic acid compound used as NMDA receptor antagonist
    Patent number: 6495587
    Abstract: The present invention provides novel tricyclic indole-2-carboxylic acids of the following chemical formula, which have potent NMDA receptor antagonistic activity.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: December 17, 2002
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Nobuyuki Ae, Seiji Katayama, Hisakazu Kishimoto, Ryu Nagata
  • Tricyclic quinoxalinedione derivatives
    Patent number: 5719152
    Abstract: A tricyclic quinoxalinedione derivative represented by the formula 1: ##STR1## wherein X represents hydrogen, alkyl, halogen, cyano, trifluoromethyl, or nitro;R.sup.1 represents hydrogen, alkyl, cycloalkyl, or cycloalkylalkyl;G represents --CONR.sup.2 -- or --NR.sup.2 CO--, wherein R.sup.2 represents hydrogen or alkyl;J represents an acidic group or a group which is convertible thereto in vivo;E represents an basic group or a group which is convertible thereto in vivo;Y represents a single bond, alkylene, alkenylene, substituted alkylene, or Y.sup.1 --Q--Y.sup.2, wherein Y.sup.1 represents a single bond or alkylene, Y.sup.2 represents alkylene, and Q represents a heteroatom selected from oxygen or sulfur;Z represents alkylene,or a pharmaceutically acceptable salt thereof, these compounds are selective antagonists of glycine binding site of the NMDA receptor.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: February 17, 1998
    Assignee: Sumitomo Pharmaceuticals Co., Ltd.
    Inventors: Ryu Nagata, Norihiko Tanno, Toru Kodo, Hiroshi Yamaguchi, Nobuyuki Ae
  • Tricyclic indole-2-carboxylic acid derivatives
    Patent number: 5496843
    Abstract: A tricyclic indole-2-carboxylic acid derivative represented by the formula 1: ##STR1## wherein X represents alkyl, halogen or cyano;R.sup.1 represents hydrogen, or a protecting group of carboxyl group;W represents hydrogen, --CO.sub.2 R.sup.3i, --CONR.sup.3i R.sup.4i, --A--CO.sub.2 R.sup.3i or --A--CONR.sup.3i R.sup.4i, wherein --A-- represents alkylene and R.sup.3i and R.sup.4i independently represent hydrogen, alkyl, aryl or substituted aryl,or a pharmaceutically acceptable salt thereof, these compounds are selective antagonists of glycine binding site of the NMDA receptor.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: March 5, 1996
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Ryu Nagata, Norihiko Tanno, Nobuyuki Ae