Patents by Inventor Kazuhiro Oobae

Kazuhiro Oobae 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: 9132195
    Abstract: With regard to compositions derived from active ingredients and other additives in medical, food and industrial fields, there have been problems that the active ingredients cannot be uniformly mixed, and that the active ingredients become segregated and lose uniformity as the active ingredients undergo transport, input, and filling processes. There is provided a cellulose powder which improves the uniformity of compositions containing active ingredients or other additives to prevent segregation of the active ingredients, wherein the cellulose powder contains cellulose I type crystals, has an average particle diameter of less than 30 ?m, a powder density of 0.1 to 0.45 g/cm3, a tapping density of 0.1 to 0.5 g/cm3, a repose angle of 35 to 50°, a specific surface of more than or equal to 0.1 m2/g and less than 20 m2/g, an internal friction angle of 36 to 42°, and is a cellulose powder including a secondary flocculation structure in which primary particles are flocculated.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: September 15, 2015
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Yosuke Honda, Kazuhiro Oobae
  • Publication number: 20110062630
    Abstract: With regard to compositions derived from active ingredients and other additives in medical, food and industrial fields, there have been problems that the active ingredients cannot be uniformly mixed, and that the active ingredients become segregated and lose uniformity as the active ingredients undergo transport, input, and filling processes. There is provided a cellulose powder which improves the uniformity of compositions containing active ingredients or other additives to prevent segregation of the active ingredients, wherein the cellulose powder contains cellulose I type crystals, has an average particle diameter of less than 30 ?m, a powder density of 0.1 to 0.45 g/cm3, a tapping density of 0.1 to 0.5 g/cm3, a repose angle of 35 to 50°, a specific surface of more than or equal to 0.1 m2/g and less than 20 m2/g, an internal friction angle of 36 to 42°, and is a cellulose powder including a secondary flocculation structure in which primary particles are flocculated.
    Type: Application
    Filed: May 21, 2009
    Publication date: March 17, 2011
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Yosuke Honda, Kazuhiro Oobae
  • Patent number: 6699845
    Abstract: An excipient comprising trehalose having a purity of 99.0% or more, a proportion of particles of 75 &mgr;m or more of 2 to 90 wt %, an average particle size of 10 to 250 &mgr;m, an apparent specific volume of 1.5 to 3.5 ml/g, and a whiteness of 90% or more.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: March 2, 2004
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Kazuhiro Oobae, Etsuo Kamada, Shun'ichi Gomi
  • Publication number: 20020042393
    Abstract: An excipient comprising trehalose having a purity of 99.0% or more, a proportion of particles of 75 &mgr;m or more of 2 to 90 wt %, an average particle size of 10 to 250 &mgr;m, an apparent specific volume of 1.5 to 3.5 ml/g, and a whiteness of 90% or more.
    Type: Application
    Filed: January 12, 2001
    Publication date: April 11, 2002
    Inventors: Kazuhiro Oobae, Etsuo Kamada, Shun?apos; ichi Gomi