Patents by Inventor Masakazu Miyazaki

Masakazu Miyazaki 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: 11944620
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: April 2, 2024
    Assignee: ASTELLAS PHARMA INC.
    Inventors: Masakazu Miyazaki, Ryohei Ishiba, Yuki Takaishi, Fumiaki Uejo
  • Patent number: 11938131
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-(3-methoxy-4-4-(4-methylpiperazin-1-yl)piperidin-1-yl phenylamino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: March 26, 2024
    Assignee: ASTELLAS PHARMA INC.
    Inventors: Masakazu Miyazaki, Ryohei Ishiba, Yuki Takaishi, Fumiaki Uejo
  • Patent number: 11938130
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: March 26, 2024
    Assignee: ASTELLAS PHARMA INC.
    Inventors: Masakazu Miyazaki, Ryohei Ishiba, Yuki Takaishi, Fumiaki Uejo
  • Patent number: 11938132
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: March 26, 2024
    Assignee: ASTELLAS PHARMA INC.
    Inventors: Masakazu Miyazaki, Ryohei Ishiba, Yuki Takaishi, Fumiaki Uejo
  • Patent number: 11938133
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: March 26, 2024
    Assignee: ASTELLAS PHARMA INC.
    Inventors: Masakazu Miyazaki, Ryohei Ishiba, Yuki Takaishi, Fumiaki Uejo
  • Publication number: 20230310422
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 5, 2023
    Publication date: October 5, 2023
    Inventors: Masakazu MIYAZAKI, Ryohei ISHIBA, Yuki TAKAISHI, Fumiaki UEJO
  • Publication number: 20230301992
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 28, 2023
    Inventors: Masakazu MIYAZAKI, Ryohei ISHIBA, Yuki TAKAISHI, Fumiaki UEJO
  • Publication number: 20230277531
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 7, 2023
    Inventors: Masakazu MIYAZAKI, Ryohei ISHIBA, Yuki TAKAISHI, Fumiaki UEJO
  • Publication number: 20230277529
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 7, 2023
    Inventors: Masakazu MIYAZAKI, Ryohei ISHIBA, Yuki TAKAISHI, Fumiaki UEJO
  • Publication number: 20230277532
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 7, 2023
    Inventors: Masakazu MIYAZAKI, Ryohei ISHIBA, Yuki TAKAISHI, Fumiaki UEJO
  • Publication number: 20230277530
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 7, 2023
    Inventors: Masakazu MIYAZAKI, Ryohei ISHIBA, Yuki TAKAISHI, Fumiaki UEJO
  • Publication number: 20230129146
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 27, 2023
    Inventors: Masakazu MIYAZAKI, Ryohei ISHIBA, Yuki TAKAISHI, Fumiaki UEJO
  • Publication number: 20220152020
    Abstract: Provided is a pharmaceutical composition containing 6-ethyl-3-{3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]anilino}-5-[(oxan-4-yl)amino]pyrazine-2-carboxamide or a pharmaceutically acceptable salt thereof and a sweetener for reducing the bitterness of gilteritinib, suppressing the decrease in dissolution stability of gilteritinib due to, for example, stress such as heat and/or humidity over time, and having excellent dissolution stability. The pharmaceutical composition contains gilteritinib or a pharmaceutically acceptable salt thereof, a sweetener, and sugars and/or sugar alcohols.
    Type: Application
    Filed: April 2, 2020
    Publication date: May 19, 2022
    Inventors: Akihiko SASAKI, Ko TANAKA, Masakazu MIYAZAKI, Seiji TAKAE
  • Publication number: 20200383977
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-4[-4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: August 24, 2020
    Publication date: December 10, 2020
    Inventors: Masakazu MIYAZAKI, Ryohei ISHIBA, Yuki TAKAISHI, Fumiaki UEJO
  • Patent number: 10786500
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: September 29, 2020
    Assignee: ASTELLAS PHARMA INC.
    Inventors: Masakazu Miyazaki, Ryohei Ishiba, Yuki Takaishi, Fumiaki Uejo
  • Publication number: 20180185359
    Abstract: Provided is a stable pharmaceutical composition for oral administration comprising 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, wherein the generation of related substances during storage is inhibited. In the stable pharmaceutical composition for oral administration, the proportion of crystals of compound A or a pharmaceutically acceptable salt thereof is 60% or more with respect to the total amount of compound A or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: July 1, 2016
    Publication date: July 5, 2018
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Masakazu MIYAZAKI, Ryohei ISHIBA, Yuki TAKAISHI, Fumiaki UEJO
  • Patent number: 9775832
    Abstract: Provided is a pharmaceutical composition for oral administration enabling improved solubility, improved dissolution properties, and improved oral absorbability of (2R)—N-({5-[3-(2,5-difluorophenyl)-2-(1,3-dihydro-2H-benzimidazole-2-ylidene)-3-oxopropanoyl]-2-fluorophenyl}sulfonyl)-2-hydroxypropane imide amide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, as well as size reduction. The pharmaceutical composition for oral administration contains an amorphous form of compound A or its pharmaceutically acceptable salt, and a polymer.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 3, 2017
    Assignee: ASTELLAS PHARMA INC.
    Inventors: Hiroyuki Kojima, Masakazu Miyazaki, Mare Nishiura, Takashi Nishizato
  • Publication number: 20170143678
    Abstract: Provided is a pharmaceutical composition for oral administration enabling improved solubility, improved dissolution properties, and improved oral absorbability of (2R)—N-({5-[3-(2,5-difluorophenyl)-2-(1,3-dihydro-2H-benzimidazole-2-ylidene)-3-oxopropanoyl]-2-fluorophenyl}sulfonyl)-2-hydroxypropane imide amide (hereinafter referred to as compound A) or a pharmaceutically acceptable salt thereof, as well as size reduction. The pharmaceutical composition for oral administration contains an amorphous form of compound A or its pharmaceutically acceptable salt, and a polymer.
    Type: Application
    Filed: June 24, 2015
    Publication date: May 25, 2017
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Hiroyuki KOJIMA, MASAKAZU MIYAZAKI, MARE NISHIURA, TAKASHI NISHIZATO
  • Patent number: 5636312
    Abstract: A video image mixing apparatus which can prevent a fluctuation of a mixed video image by a mixed video signal in the case where a playback video signal obtained by playing a recording medium in a special playing mode and a graphics video signal. When a discontinuity of the phase of a color burst signal in the playback video signal obtained by playing the recording medium is detected, the playback video signal and the graphics video signal are delayed by a predetermined time period and the delayed signals are mixed subsequently, thereby keeping the phases of chroma signals of the playback video signal and graphics video signal equal even in a special playing mode such as a still image reproducing mode or the like. In another embodiment, the mixed video signal of the playback video signal and graphics video signal is delayed by a predetermined time and is generated.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: June 3, 1997
    Assignee: Pioneer Electronic Corporation
    Inventors: Manabu Okamoto, Takashi Yoshimi, Hiroyasu Matsuura, Noriyoshi Takeya, Hitoshi Yamazaki, Masakazu Miyazaki, Hirofumi Matoba
  • Patent number: D537778
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: March 6, 2007
    Assignee: TDK Corporation
    Inventor: Masakazu Miyazaki