Patents by Inventor Naoaki Yamazaki

Naoaki Yamazaki 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).

  • Optically active azabicyclo ring derivative
    Patent number: 11911381
    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: May 23, 2022
    Date of Patent: February 27, 2024
    Assignee: Sumitomo Pharma Co., Ltd.
    Inventors: Seiji Kamioka, Hitoshi Ban, Naoaki Shimada, Wataru Hirose, Akihiko Arakawa, Kazuto Yamazaki, Kenjiro Hira
  • Cellulose powder
    Patent number: 8221789
    Abstract: Cellulose powder having an especially excellent balance among moldability, fluidity and disintegrating property is provided. Cellulose powder having an average polymerization degree of 150-450, an average L/D (the ratio of the major axis to the minor axis) value of particles of 75 ?m or less of 2.0-4.5, an average particle size of 20-250 ?m, an apparent specific volume of 4.0-7.0 cm3/g, an apparent tapping specific volume of 2.4-4.5 cm3/g, and an angle of repose of 55° or less.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: July 17, 2012
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Kazuhiro Obae, Etsuo Kamada, Yohsuke Honda, Shun'ichi Gomi, Naoaki Yamazaki
  • Cellulose powder
    Patent number: 7939101
    Abstract: Cellulose powder having an especially excellent balance among moldability, fluidity and disintegrating property is provided. Cellulose powder having an average polymerization degree of 150-450, an average L/D (the ratio of the major axis to the minor axis) value of particles of 75 ?m or less of 2.0-4.5, an average particle size of 20-250 ?m, an apparent specific volume of 4.0-7.0 cm3/g, an apparent tapping specific volume of 2.4-4.5 cm3/g, and an angle of repose of 55° or less.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: May 10, 2011
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Kazuhiro Obae, Etsuo Kamada, Yohsuke Honda, Shun'ichi Gomi, Naoaki Yamazaki
  • CELLULOSE POWDER
    Publication number: 20100291161
    Abstract: Cellulose powder having an especially excellent balance among moldability, fluidity and disintegrating property is provided. Cellulose powder having an average polymerization degree of 150-450, an average L/D (the ratio of the major axis to the minor axis) value of particles of 75 ?m or less of 2.0-4.5, an average particle size of 20-250 ?m, an apparent specific volume of 4.0-7.0 cm3/g, an apparent tapping specific volume of 2.4-4.5 cm3/g, and an angle of repose of 55° or less.
    Type: Application
    Filed: July 27, 2010
    Publication date: November 18, 2010
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Kazuhiro Obae, Etsuo Kamada, Yohsuke Honda, Shun'ichi Gomi, Naoaki Yamazaki
  • Cellulose powder
    Publication number: 20040053887
    Abstract: Cellulose powder having an especially excellent balance among moldability, fluidity and disintegrating property is provided. Cellulose powder having an average polymerization degree of 150-450, an average L/D (the ratio of the major axis to the minor axis) value of particles of 75 &mgr;m or less of 2.0-4.5, an average particle size of 20-250 &mgr;m, an apparent specific volume of 4.0-7.0 cm3/g, an apparent tapping specific volume of 2.4-4.5 cm3/g, and an angle of repose of 55° or less.
    Type: Application
    Filed: January 3, 2003
    Publication date: March 18, 2004
    Inventors: Kazuhiro Obae, Etsuo Kamada, Yohsuke Honda, Shun?apos;ichi Gomi, Naoaki Yamazaki