Patents by Inventor Keisuke Kimpara

Keisuke Kimpara 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).

  • NITROGEN-CONTAINING HETEROCYCLIC COMPOUND HAVING INHIBITORY EFFECT ON PRODUCTION OF KYNURENINE
    Publication number: 20230218612
    Abstract: The present invention provides a nitrogen-containing heterocyclic compound or a pharmaceutically acceptable salt thereof having an inhibitory effect on the production of kynurenine, represented by formula (I): (wherein R6 and R7 may be the same or different and each represent a hydrogen atom or the like, R8, R9, R10, and R11 may be the same or different and each represent a hydrogen atom or the like, R1 represents lower alkyl which may be substituted with cycloalkyl, or the like, and R3 represents optionally substituted aryl or an optionally substituted heterocyclic group).
    Type: Application
    Filed: March 8, 2023
    Publication date: July 13, 2023
    Applicant: Kyowa Kirin Co., Ltd.
    Inventors: Yuichi FUKUDA, Toshimi KANAI, Yoshisuke NAKASATO, Keisuke KIMPARA
  • NITROGEN-CONTAINING HETEROCYCLIC COMPOUND HAVING INHIBITORY EFFECT ON PRODUCTION OF KYNURENINE
    Publication number: 20200179376
    Abstract: The present invention provides a nitrogen-containing heterocyclic compound or a pharmaceutically acceptable salt thereof having an inhibitory effect on the production of kynurenine, represented by formula (I): (wherein R6 and R7 may be the same or different and each represent a hydrogen atom or the like, R8, R9, R10, and R11 may be the same or different and each represent a hydrogen atom or the like, R1 represents lower alkyl which may be substituted with cycloalkyl, or the like, and R3 represents optionally substituted aryl or an optionally substituted heterocyclic group).
    Type: Application
    Filed: December 4, 2019
    Publication date: June 11, 2020
    Applicant: Kyowa Kirin Co., Ltd.
    Inventors: Yuichi Fukuda, Toshimi Kanai, Yoshisuke Nakasato, Keisuke Kimpara
  • Nitrogen-containing heterocyclic compound having inhibitory effect on production of kynurenine
    Patent number: 10548891
    Abstract: The present invention provides a nitrogen-containing heterocyclic compound or a pharmaceutically acceptable salt thereof having an inhibitory effect on the production of kynurenine, represented by formula (I): (wherein R6 and R7 may be the same or different and each represent a hydrogen atom or the like, R8, R9, R10, and R11 may be the same or different and each represent a hydrogen atom or the like, R1 represents lower alkyl which may be substituted with cycloalkyl, or the like, and R3 represents optionally substituted aryl or an optionally substituted heterocyclic group).
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: February 4, 2020
    Assignee: KYOWA HAKKO KIRIN CO., LTD.
    Inventors: Yuichi Fukuda, Toshimi Kanai, Yoshisuke Nakasato, Keisuke Kimpara
  • NITROGEN-CONTAINING HETEROCYCLIC COMPOUND HAVING INHIBITORY EFFECT ON PRODUCTION OF KYNURENINE
    Publication number: 20150352106
    Abstract: The present invention provides a nitrogen-containing heterocyclic compound or a pharmaceutically acceptable salt thereof having an inhibitory effect on the production of kynurenine, represented by formula (I): (wherein R6 and R7 may be the same or different and each represent a hydrogen atom or the like, R8, R9, R10, and R11 may be the same or different and each represent a hydrogen atom or the like, R1 represents lower alkyl which may be substituted with cycloalkyl, or the like, and R3 represents optionally substituted aryl or an optionally substituted heterocyclic group).
    Type: Application
    Filed: August 17, 2015
    Publication date: December 10, 2015
    Inventors: Yuichi FUKUDA, Toshimi Kanai, Yoshisuke Nakasato, Keisuke Kimpara
  • Kynurenine production inhibitor
    Patent number: 8673908
    Abstract: Provided is a kynurenine production inhibitor comprising a nitrogen-containing heterocyclic compound represented by formula (I): (wherein R50 and R51 may be the same or different and each represent a hydrogen atom or the like, G1 and G2 may be the same or different and each represent a nitrogen atom or the like, X represents formula (III): (wherein m1 and m2 may be the same or different and each represent an integer of 0 or 1, Y represents an oxygen atom or the like, and R6 and R7 may be the same or different and each represent a hydrogen atom or the like), R1 represents optionally substituted lower alkyl or the like, R2 represents a hydrogen atom or the like, and R3 represents optionally substituted lower alkyl or the like), and the like.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: March 18, 2014
    Assignee: Kyowa Hakko Kirin Co., Ltd.
    Inventors: Nobuyoshi Amishiro, Yuichi Fukuda, Keisuke Kimpara, Motoya Mie, Hisashi Tagaya, Takeshi Takahashi
  • NITROGEN-CONTAINING HETEROCYCLIC COMPOUND HAVING INHIBITORY EFFECT ON PRODUCTION OF KYNURENINE
    Publication number: 20130065905
    Abstract: The present invention provides a nitrogen-containing heterocyclic compound or a pharmaceutically acceptable salt thereof having an inhibitory effect on the production of kynurenine, represented by formula (I): (wherein R6 and R7 may be the same or different and each represent a hydrogen atom or the like, R8, R9, R19, and R11 may be the same or different and each represent a hydrogen atom or the like, R1 represents lower alkyl which may be substituted with cycloalkyl, or the like, and R3 represents optionally substituted aryl or an optionally substituted heterocyclic group).
    Type: Application
    Filed: May 9, 2011
    Publication date: March 14, 2013
    Applicant: Kyowa Hakko Kirin Co., Ltd.
    Inventors: Yuichi Fukuda, Toshimi Kanai, Yoshisuke Nakasato, Keisuke Kimpara