Patents by Inventor Youichi KAWAKITA

Youichi KAWAKITA 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).

  • Patent number: 11897879
    Abstract: Provided is a compound that can have an effect of inhibiting MALT1 and is expected as useful as a prophylactic or therapeutic drug for cancer, etc. A compound represented by formula (I) [wherein each symbol is as defined in the description], a salt thereof, or a cocrystal, a hydrate or a solvate of the same.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: February 13, 2024
    Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Takaharu Hirayama, Yoshiteru Ito, Noriyuki Nii, Youichi Kawakita, Shinichi Imamura
  • Patent number: 11390634
    Abstract: Provided is a compound represented by the following formula, or a salt thereof: [wherein each symbol is as defined herein.].
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: July 19, 2022
    Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Youichi Kawakita, Takuto Kojima, Noriyuki Nii, Yoshiteru Ito, Nobuki Sakauchi, Hiroshi Banno, Xin Liu, Koji Ono, Keisuke Imamura, Shinichi Imamura
  • Publication number: 20220089595
    Abstract: Provided is a compound that can have an effect of inhibiting MALT1 and is expected as useful as a prophylactic or therapeutic drug for cancer, etc. A compound represented by formula (I) [wherein each symbol is as defined in the description], a salt thereof, or a cocrystal, a hydrate or a solvate of the same.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 24, 2022
    Inventors: Takaharu Hirayama, Yoshiteru Ito, Noriyuki Nii, Youichi Kawakita, Shinichi Imamura
  • Publication number: 20220048916
    Abstract: Provided is a compound that can have an effect of inhibiting MALT1 and is expected as useful as a prophylactic or therapeutic drug for cancer, etc. A compound represented by formula (I) [wherein each symbol is as defined in the description], a salt thereof, or a cocrystal, a hydrate or a solvate of the same.
    Type: Application
    Filed: November 27, 2019
    Publication date: February 17, 2022
    Applicant: Takeda Pharmaceutical Company Limited
    Inventors: Takaharu Hirayama, Yoshiteru Ito, Hiroshi Banno, Hidekazu Tokuhara, Toshio Tanaka, Yasuyoshi Arikawa, Noriyuki Nii, Youichi Kawakita, Shinichi Imamura
  • Patent number: 11230545
    Abstract: Provided is a compound that can have an effect of inhibiting MALT1 and is expected as useful as a prophylactic or therapeutic drug for cancer, etc. A compound represented by formula (I) [wherein each symbol is as defined in the description], a salt thereof, or a cocrystal, a hydrate or a solvate of the same.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: January 25, 2022
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Takaharu Hirayama, Yoshiteru Ito, Hiroshi Banno, Hidekazu Tokuhara, Toshio Tanaka, Yasuyoshi Arikawa, Noriyuki Nii, Youichi Kawakita, Shinichi Imamura
  • Publication number: 20210332045
    Abstract: Provided is a compound that can have an effect of inhibiting MALT1 and is expected as useful as a prophylactic or therapeutic drug for cancer, etc. A compound represented by formula (I) [wherein each symbol is as defined in the description], a salt thereof, or a cocrystal, a hydrate or a solvate of the same.
    Type: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Inventors: Takaharu Hirayama, Yoshiteru Ito, Hiroshi Banno, Hidekazu Tokuhara, Toshio Tanaka, Yasuyoshi Arikawa, Noriyuki Nii, Youichi Kawakita, Shinichi Imamura
  • Publication number: 20210115067
    Abstract: Provided is a compound represented by the following formula, or a salt thereof: [wherein each symbol is as defined herein.].
    Type: Application
    Filed: December 22, 2020
    Publication date: April 22, 2021
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Youichi KAWAKITA, Takuto KOJIMA, Noriyuki NII, Yoshiteru ITO, Nobuki SAKAUCHI, Hiroshi BANNO, Xin LIU, Koji ONO, Keisuke IMAMURA, Shinichi IMAMURA
  • Patent number: 10981934
    Abstract: Provided is a compound represented by the following formula, or a salt thereof: [wherein each symbol is as defined herein.].
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: April 20, 2021
    Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Youichi Kawakita, Takuto Kojima, Noriyuki Nii, Yoshiteru Ito, Nobuki Sakauchi, Hiroshi Banno, Xin Liu, Koji Ono, Keisuke Imamura, Shinichi Imamura
  • Publication number: 20200140462
    Abstract: Provided is a compound represented by the following formula, or a salt thereof: [wherein each symbol is as defined herein.].
    Type: Application
    Filed: October 25, 2019
    Publication date: May 7, 2020
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Youichi KAWAKITA, Takuto KOJIMA, Noriyuki NII, Yoshiteru ITO, Nobuki SAKAUCHI, Hiroshi BANNO, Xin LIU, Koji ONO, Keisuke IMAMURA, Shinichi IMAMURA
  • Patent number: 10577382
    Abstract: Provided is a compound represented by the following formula, or a salt thereof: [wherein each symbol is as defined herein].
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: March 3, 2020
    Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Youichi Kawakita, Takuto Kojima, Noriyuki Nii, Yoshiteru Ito, Nobuki Sakauchi, Hiroshi Banno, Xin Liu, Koji Ono, Keisuke Imamura, Shinichi Imamura
  • Publication number: 20190106437
    Abstract: Provided is a compound represented by the following formula, or a salt thereof: [wherein each symbol is as defined herein.].
    Type: Application
    Filed: April 27, 2017
    Publication date: April 11, 2019
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Youichi KAWAKITA, Takuto KOJIMA, Noriyuki NII, Yoshiteru ITO, Nobuki SAKAUCHI, Hiroshi BANNO, Xin LIU, Koji ONO, Keisuke IMAMURA, Shinichi IMAMURA
  • Publication number: 20100216788
    Abstract: The present invention provides a compound represented by the formula: wherein R1a is a hydrogen atom, R2a is a C1-6 alkyl group substituted by a group represented by —NR6a—CO—(CH2)n—SO2— optionally halogenated C1-4 alkyl wherein n is an integer of 1 to 4, R6a is a hydrogen atom or a C1-4 alkyl group, and —(CH2)n— is optionally substituted by C1-4 alkyl, R3a is a hydrogen atom or a C1-6 alkyl group, R4a is a halogen atom or a C1-6 alkyl group, R5a is a halogen atom or a C1-6 alkyl group, and Xa is a hydrogen atom or a halogen atom, or a salt thereof. The compound of the present invention has a superior tyrosine kinase inhibitory action, is highly safe, and is sufficiently satisfactory as a pharmaceutical product.
    Type: Application
    Filed: December 1, 2006
    Publication date: August 26, 2010
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Tomoyasu Ishikawa, Kazuhiro Miwa, Masaki Seto, Hiroshi Banno, Youichi Kawakita
  • Publication number: 20100004238
    Abstract: The present invention provides a fused heterocyclic compound having a tyrosine kinase inhibitory action, which is represented by the formula: wherein R1 is a hydrogen atom, a halogen atom, or an optionally substituted group bonded via a carbon atom, a nitrogen atom or an oxygen atom; R2 is a hydrogen atom, or an optionally substituted group bonded via a carbon atom or a sulfur atom, or R1 and R2, or R2 and R3 are optionally bonded to each other to form an optionally substituted ring structure; R3 is a hydrogen atom or an optionally substituted aliphatic hydrocarbon group, or R3 is optionally bonded to the carbon atom on ring A to form an optionally substituted ring structure; ring A is an optionally substituted benzene ring; and ring B is (i) an optionally substituted fused ring, or (ii) a pyridine ring having optionally substituted carbamoyl (the pyridine ring is optionally further substituted).
    Type: Application
    Filed: December 11, 2007
    Publication date: January 7, 2010
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Tomoyasu Ishikawa, Hiroshi Banno, Youichi Kawakita, Tomohiro Ohashi, Osamu Kurasawa
  • Publication number: 20090233937
    Abstract: The present invention provides a fused heterocyclic compound having a tyrosine kinase inhibitory action, which is represented by the formula: wherein ring A is an optionally substituted benzene ring; ring B is an optionally substituted benzoisothiazole ring; R1 is a hydrogen atom, a halogen atom, or an optionally substituted group bonded via a carbon atom, a nitrogen atom or an oxygen atom; R2 is a hydrogen atom, or an optionally substituted group bonded via a carbon atom or a sulfur atom; R3 is a hydrogen atom or an optionally substituted aliphatic hydrocarbon group; or R1 and R2, or R2 and R3 are optionally bonded to each other to form an optionally substituted ring structure; or R3 is optionally bonded to the carbon atom on ring A to form an optionally substituted ring structure; or a salt thereof.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 17, 2009
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Tomoyasu ISHIKAWA, Youichi KAWAKITA
  • Publication number: 20080269238
    Abstract: The present invention provides a compound represented by the following Formula: wherein A is an aryl group or a heteroaryl group, each of which may be substituted; R1 is a group which is bonded through carbon; R2 is hydrogen or an aliphatic hydrocarbon group; and X is —NR3—, —O—, —S—, —SO—, —SO2—, or —CHR3— (wherein R3 is hydrogen or an aliphatic hydrocarbon group), or a salt thereof, or a prodrug thereof, which has growth factor receptor tyrosine kinase inhibitory activity and low toxicity, and is useful for prevention and treatment of cancer, and thus can be sufficiently used as a medicine.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 30, 2008
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Yoshihiro Sugihara, Youichi Kawakita