Patents by Inventor Keiichiro HIRAI

Keiichiro HIRAI 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).

  • 6-MEMBERED HETEROCYCLIC DERIVATIVES AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME
    Publication number: 20210292283
    Abstract: A compound represented by Formula (I): wherein or the like Y1 is O or the like; Z1 is C(R4) or N; Z2a is C(R5a) or the like; Z3a is C(R6) or the like; R4, R5a and R6 are each independently a hydrogen atom or the like; R1 is substituted or unsubstituted aromatic carbocyclyl or the like; R2a, R2b, R2c and R2d are each independently a hydrogen atom or the like; X is N(R7a) or the like; R7a is a hydrogen atom or the like; R3 is or the like Ring B is a 6-membered aromatic carbocycle or the like; R9a and R10a are each independently halogen or the like; n is an integer from 1 to 5; m is an integer from 0 to 4; and p 1 is an integer from 0 to 3, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 23, 2021
    Applicant: Shionogi & Co., Ltd.
    Inventors: Satoru TANAKA, Tomoyuki OGAWA, Hiroyuki KAI, Yuki OGATA, Keiichiro HIRAI, Noriyuki KUROSE, Yasuhiko FUJII
  • 6-membered heterocyclic derivatives and pharmaceutical composition comprising the same
    Patent number: 11124486
    Abstract: A compound represented by Formula (I): wherein or the like, Y1 is O or the like; Z1 is C(R4) or N; Z2a is C(R5a) or the like; Z3a is C(R6) or the like; R4, R5a and R6 are each independently a hydrogen atom or the like; R1 is substituted or unsubstituted aromatic carbocyclyl or the like; R2a, R2b, R2c and R2d are each independently a hydrogen atom or the like; X is N(R7a) or the like; R7a is a hydrogen atom or the like; R3 is or the like, Ring B is a 6-membered aromatic carbocycle or the like; R9a and R10a are each independently halogen or the like; n is an integer from 1 to 5; m is an integer from 0 to 4; and p1 is an integer from 0 to 3, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: September 21, 2021
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Tomoyuki Ogawa, Hiroyuki Kai, Keiichiro Hirai
  • 6-membered heterocyclic derivatives and pharmaceutical composition comprising the same
    Patent number: 10774051
    Abstract: A compound represented by Formula (I): wherein or the like Y1 is O or the like; Z1 is C(R4) or N; Z2a is C(R5a) or the like; Z3a is C(R6) or the like; R4, R5a and R6 are each independently a hydrogen atom or the like; R1 is substituted or unsubstituted aromatic carbocyclyl or the like; R2a, R2b, R2c and R2d are each independently a hydrogen atom or the like; X is N(R7a) or the like; R7a is a hydrogen atom or the like; R3 is or the like Ring B is a 6-membered aromatic carbocycle or the like; R9a and R10a are each independently halogen or the like; n is an integer from 1 to 5; m is an integer from 0 to 4; and p1 is an integer from 0 to 3, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: September 15, 2020
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Tomoyuki Ogawa, Hiroyuki Kai, Keiichiro Hirai
  • 6-MEMBERED HETEROCYCLIC DERIVATIVES AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME
    Publication number: 20200262796
    Abstract: A compound represented by Formula (I): Chemical Formula 1 wherein Chemical Formula 2 or the like Y1 is O or the like; Z1 is C(R4) or N; Z2a is C(R5a) or the like; Z3a is C(R6) or the like; R4, R5a and R6 are each independently a hydrogen atom or the like; R1 is substituted or unsubstituted aromatic carbocyclyl or the like; R2a, R2b, R2c and R2d are each independently a hydrogen atom or the like; X is N(R7a) or the like; R7a is a hydrogen atom or the like; R3 is Chemical Formula 3 or the like Ring B is a 6-membered aromatic carbocycle or the like; R9a and R10a are each independently halogen or the like; n is an integer from 1 to 5; m is an integer from 0 to 4; and p is an integer from 0 to 3, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: April 17, 2020
    Publication date: August 20, 2020
    Applicant: Shionogi & Co., Ltd.
    Inventors: Satoru TANAKA, Tomoyuki OGAWA, Hiroyuki KAI, Yuki OGATA, Keiichiro HIRAI, Noriyuki KUROSE, Yasuhiko FUJII
  • 6-MEMBERED HETEROCYCLIC DERIVATIVES AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME
    Publication number: 20180118694
    Abstract: A compound represented by Formula (I): wherein or the like Y1 is O or the like; Z1 is C(R4) or N; Z2a is C(R5a) or the like; Z3a is C(R6) or the like; R4, R5a and R6 are each independently a hydrogen atom or the like; R1 is substituted or unsubstituted aromatic carbocyclyl or the like; R2a, R2b, R2c and R2d are each independently a hydrogen atom or the like; X is N(R7a) or the like; R7a is a hydrogen atom or the like; R3 is or the like Ring B is a 6-membered aromatic carbocycle or the like; R9a and R10a are each independently halogen or the like; n is an integer from 1 to 5; m is an integer from 0 to 4; and p1 is an integer from 0 to 3, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: April 22, 2016
    Publication date: May 3, 2018
    Applicant: Shionogi & Co., Ltd.
    Inventors: Satoru TANAKA, Tomoyuki OGAWA, Hiroyuki KAI, Yuki OGATA, Keiichiro HIRAI, Noriyuki KUROSE, Yasuhiko FUJII