Patents by Inventor Hitoshi Ban

Hitoshi Ban 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: 12673941
    Abstract: [Problem] The present disclosure provides tertiary amide derivatives substituted with a 4-membered ring structure that are useful as medicines and pharmaceutically acceptable salts thereof, pharmaceutical compositions comprising the same, and therapeutic agents and/or prophylactic agents for conditions in which CBP/P300 is involved, comprising the composition.
    Type: Grant
    Filed: April 11, 2025
    Date of Patent: July 7, 2026
    Assignees: Sumitomo Pharma Co., Ltd., NATIONAL CANCER CENTER
    Inventors: Shunichiro Uesugi, Yusuke Kamei, Hitoshi Ban, Seiji Kamioka, Yusuke Imazaki, Hideaki Ogiwara, Mariko Sasaki
  • Patent number: 12662494
    Abstract: The present invention relates to the compound of formula (1a) wherein a-d and p are 1 or 2, R1-R4 are hydrogen atom or the like, and R18 is —CF3 or the like, or a pharmaceutically acceptable salt thereof, which has an anticancer effect by inhibiting the binding between a MLL fusion protein that is fused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: June 23, 2026
    Assignee: Sumitomo Pharma Co., Ltd.
    Inventors: Seiji Kamioka, Naoaki Shimada, Hitoshi Ban, Kazuto Yamazaki, Akihiko Arakawa, Wataru Hirose
  • Patent number: 12617779
    Abstract: Provided is a self-degradation type CDK9 inhibitor prodrug and a liposome encapsulating the same. The present disclosure provides a compound represented by formula (1) or a pharmaceutically acceptable salt thereof: wherein R1 is an optionally substituted C1-6 alkyl group, R2 and R3 are the same or different, each independently a hydrogen atom or an optionally substituted C1-6 alkyl group, X is CH2 or an oxygen atom, n is 1 or 2, p is 0, 1 or 2, q is 1 or 2, and r is 0, 1 or 2, wherein, if X is an oxygen atom, q is 2.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: May 5, 2026
    Assignee: Sumitomo Pharma Co., Ltd.
    Inventors: Seiji Kamioka, Naoaki Shimada, Makoto Matsuoka, Hitoshi Ban
  • Publication number: 20260053911
    Abstract: The present invention provides a compound of the formula (1): wherein X, R1, R2, R3, R4, R5, R6, Y1, Y2, L, and m are as defined in the description, and a pharmaceutically acceptable salt thereof, which are useful as a vaccine adjuvant.
    Type: Application
    Filed: August 28, 2025
    Publication date: February 26, 2026
    Inventors: Hidenori Kimura, Hitoshi Ban, Yoshiaki Isobe, Hitoshi Watanabe
  • Patent number: 12559487
    Abstract: The present invention relates to the compound of formula (1a) wherein p is 1 or 2, R1-R4 are hydrogen atom or the like, Ring A is cycloalkylene or the like, L is single bond or the like, and R is methyl or the like, or a pharmaceutically acceptable salt thereof, which has an anticancer effect by inhibiting the binding between a MLL fusion protein that is fused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: February 24, 2026
    Assignee: Sumitomo Pharma Co., Ltd.
    Inventors: Seiji Kamioka, Naoaki Shimada, Wataru Hirose, Hitoshi Ban
  • Publication number: 20260022109
    Abstract: The present disclosure provides a compound that exerts an anticancer action based on CHK1 inhibition. The present disclosure was completed by finding that a compound represented by formula (1) or a pharmaceutically acceptable salt thereof exhibits an excellent antitumor action by having a potent inhibitory action against CHK1: wherein R1, R2, L, V, W, and Q are as defined herein, X, Y, and Z each independently represent CR8 or a nitrogen atom, wherein X, Y, and Z are not simultaneously CR8, and R8 is as defined herein.
    Type: Application
    Filed: August 6, 2025
    Publication date: January 22, 2026
    Applicant: Sumitomo Pharma Co., Ltd.
    Inventors: Seiji KAMIOKA, Hitoshi BAN, Makoto MATSUOKA, Wataru HIROSE, Naoaki SHIMADA, Kento HAYASHI, Hiroki UMEHARA
  • Patent number: 12440560
    Abstract: The present invention provides a compound of the formula (1): wherein X, R1, R2, R3, R4, R5, R6, Y1, Y2, L, and m are as defined in the description, and a pharmaceutically acceptable salt thereof, which are useful as a vaccine adjuvant.
    Type: Grant
    Filed: January 23, 2024
    Date of Patent: October 14, 2025
    Assignee: Sumitomo Pharma Co., Ltd.
    Inventors: Hidenori Kimura, Hitoshi Ban, Yoshiaki Isobe, Hitoshi Watanabe
  • Patent number: 12427192
    Abstract: The present invention relates to a compound useful as a vaccine adjuvant for cancer vaccine, a preparation process thereof, a pharmaceutical composition comprising the compound, and use of the compound as a vaccine adjuvant for cancer vaccine.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: September 30, 2025
    Assignee: Sumitomo Pharma Co., Ltd.
    Inventors: Hitoshi Ban, Yosuke Takanashi, Masashi Goto, Natsuko Suginobe, Yusuke Imazaki, Yoshiko Iwata
  • Patent number: 12410154
    Abstract: The present disclosure provides a compound that exerts an anticancer action based on CHK1 inhibition. The present disclosure was completed by finding that a compound represented by formula (1) or a pharmaceutically acceptable salt thereof exhibits an excellent antitumor action by having a potent inhibitory action against CHK1: wherein R1, R2, L, V, W, and Q are as defined herein, X, Y, and Z each independently represent CR8 or a nitrogen atom, wherein X, Y, and Z are not simultaneously CR8, and R8 is as defined herein.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: September 9, 2025
    Assignee: Sumitomo Pharma Co., Ltd.
    Inventors: Seiji Kamioka, Hitoshi Ban, Makoto Matsuoka, Wataru Hirose, Naoaki Shimada, Kento Hayashi, Hiroki Umehara
  • Patent number: 12398149
    Abstract: The present invention relates to the compound of formula (I) wherein R1A, R1B, R1C, and R1D are hydrogen atom, etc., R2A and R2B are hydrogen atom, etc., R3A, R3B, R3C, and R3D are hydrogen atom, etc., L is bond, etc., V is C1-6 alkylene, Q is optionally-substituted imidazole, or a pharmaceutically acceptable salt thereof, as a novel anti-tumor agent that targets CSCs which are thought to be closely involved in the persistent proliferation of malignant tumor, metastasis or recurrence of cancer, and resistance to anti-tumor agents.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: August 26, 2025
    Assignee: Sumitomo Pharma Co., Ltd.
    Inventors: Hitoshi Ban, Seiji Kamioka, Yusuke Sawayama, Miki Hashizume
  • Publication number: 20250263415
    Abstract: [Problem] The present disclosure provides tertiary amide derivatives substituted with a 4-membered ring structure that are useful as medicines and pharmaceutically acceptable salts thereof, pharmaceutical compositions comprising the same, and therapeutic agents and/or prophylactic agents for conditions in which CBP/P300 is involved, comprising the composition.
    Type: Application
    Filed: February 6, 2025
    Publication date: August 21, 2025
    Applicants: Sumitomo Pharma Co., Ltd., NATIONAL CANCER CENTER
    Inventors: Shunichiro UESUGI, Yusuke KAMEI, Hitoshi BAN, Seiji KAMIOKA, Yusuke IMAZAKI, Hideaki OGIWARA, Mariko SASAKI
  • Publication number: 20250257055
    Abstract: [Problem] The present disclosure provides tertiary amide derivatives substituted with a 4-membered ring structure that are useful as medicines and pharmaceutically acceptable salts thereof, pharmaceutical compositions comprising the same, and therapeutic agents and/or prophylactic agents for conditions in which CBP/P300 is involved, comprising the composition.
    Type: Application
    Filed: April 11, 2025
    Publication date: August 14, 2025
    Applicants: Sumitomo Pharma Co., Ltd., NATIONAL CANCER CENTER
    Inventors: Shunichiro UESUGI, Yusuke KAMEI, Hitoshi BAN, Seiji KAMIOKA, Yusuke IMAZAKI, Hideaki OGIWARA, Mariko SASAKI
  • Patent number: 12383608
    Abstract: The present application relates to WT1 helper peptides consisting of an amino acid sequence of 9 to 30 amino acid residues including a sequence: KLSHL as part thereof, and combinations of a WT1 helper peptide and a conjugate of cancer antigen peptides.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 12, 2025
    Assignees: SUMITOMO PHARMA CO., LTD., INTERNATIONAL INSTITUTE OF CANCER IMMUNOLOGY, INC.
    Inventors: Hitoshi Ban, Masashi Goto, Yosuke Takanashi
  • Publication number: 20250177395
    Abstract: The compound of formula (1a) wherein p is 1 or 2, R1-R4 are hydrogen atom or the like, and a-d are 1 or 2, or a pharmaceutically acceptable salt thereof, which has an antitumor effect by inhibiting the binding between a MLL fusion protein that is infused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin
    Type: Application
    Filed: February 4, 2025
    Publication date: June 5, 2025
    Applicant: Sumitomo Pharma Co., Ltd.
    Inventors: Seiji KAMIOKA, Hitoshi BAN, Naoaki SHIMADA, Wataru HIROSE, Akihiko ARAKAWA, Kazuto YAMAZAKI, Kenjiro HIRA
  • Publication number: 20250129049
    Abstract: Provided is a compound that exerts an anti-cancer action based on checkpoint kinase 1 (CHK1) inhibition. It was found that the following compound represented by formula (1) or a pharmaceutically acceptable salt thereof has a potent inhibitory action against CHK1, and thereby exhibits an excellent anti-tumor action, which resulted in the completion of the present disclosure: wherein R1, L, V, W, Q, Ring A, Y1a, Y1b, Z1a, and Z1b is as defined in the description.
    Type: Application
    Filed: December 23, 2022
    Publication date: April 24, 2025
    Applicant: Sumitomo Pharma Co., Ltd.
    Inventors: Seiji KAMIOKA, Kento HAYASHI, Hitoshi BAN, Naoaki SHIMADA, Makoto MATSUOKA, Wataru HIROSE
  • Patent number: 12263167
    Abstract: The compound of formula (1a) wherein p is 1 or 2, R1-R4 are hydrogen atom or the like, and a-d are 1 or 2, or a pharmaceutically acceptable salt thereof, which has an antitumor effect by inhibiting the binding between a MLL fusion protein that is infused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.
    Type: Grant
    Filed: January 12, 2024
    Date of Patent: April 1, 2025
    Assignee: Sumitomo Pharma Co., Ltd.
    Inventors: Seiji Kamioka, Hitoshi Ban, Naoaki Shimada, Wataru Hirose, Akihiko Arakawa, Kazuto Yamazaki, Kenjiro Hira
  • Patent number: 12178879
    Abstract: A compound represented by formula (1): wherein R1 represents a hydrogen atom or a sulfonyl group; and Z represents a group represented by formula (Z-1), or a salt thereof.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: December 31, 2024
    Assignee: SUMITOMO PHARMA CO., LTD.
    Inventors: Hitoshi Ban, Atsushi Suwa
  • Publication number: 20240368138
    Abstract: Provided is a self-degradation type CDK9 inhibitor prodrug and a liposome encapsulating the same. The present disclosure provides a compound represented by formula (1) or a pharmaceutically acceptable salt thereof: wherein R1 is an optionally substituted C1-6 alkyl group, R2 and R3 are the same or different, each independently a hydrogen atom or an optionally substituted C1-6 alkyl group, X is CH2 or an oxygen atom, n is 1 or 2, p is 0, 1 or 2, q is 1 or 2, and r is 0, 1 or 2, wherein, if X is an oxygen atom, q is 2.
    Type: Application
    Filed: March 2, 2023
    Publication date: November 7, 2024
    Applicant: Sumitomo Pharma Co., Ltd.
    Inventors: Seiji KAMIOKA, Naoaki SHIMADA, Makoto MATSUOKA, Hitoshi BAN
  • Publication number: 20240245766
    Abstract: The present invention provides a compound of the formula (1): wherein X, R1, R2, R3, R4, R5, R6, Y1, Y2, L, and m are as defined in the description, and a pharmaceutically acceptable salt thereof, which are useful as a vaccine adjuvant.
    Type: Application
    Filed: January 23, 2024
    Publication date: July 25, 2024
    Inventors: Hidenori Kimura, Hitoshi Ban, Yoshiaki Isobe, Hitoshi Watanabe
  • Patent number: 12018093
    Abstract: A compound represented by formula (1): wherein AA represents a particular amino acid residue or a C1-6 alkyl ester thereof, and when there is a plurality of AAs, each AA may be the same as or different from each other and AAs are bonded to each other via an amide bond; an N-terminal nitrogen atom of (AA)m forms an amide bond together with carbonyl (a); Q represents an unsubstituted phenyl group, or a group represented by formula (Q-1), formula (Qa-2), formula (Qa-3), formula (Qa-4), formula (Qa-5), formula (Qa-6) or formula (Qa-7); R1a and R1b each independently represent a hydrogen atom or a C1-6 alkyl group; and m represents an integer of 1 to 10, or a salt thereof.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: June 25, 2024
    Assignee: SUMITOMO PHARMA CO., LTD.
    Inventors: Hitoshi Ban, Yukihiro Nishio, Atsushi Suwa