Patents by Inventor Takeshi Hom-ma

Takeshi Hom-ma 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).

  • Aggregates of spherical multivalent metal alginate microparticles and methods of making them
    Publication number: 20030206953
    Abstract: The present invention discloses a process for preparing controlled-release preparations which can rapidly release 99% or more of a slightly soluble medicament (which has by itself shows a slow dissolution rate) in the upper part of the small intestine and compositions thereof. The present invention also discloses a process comprising carrying a slightly soluble medicament which has a slow intestinal dissolution rate on aggregates of the spherical microparticles of a multivalent metal alginate, in which each of the secondary particles (i.e., the aggregates) has a specific surface area ranging from 1 to 280 m2/g and compositions thereof.
    Type: Application
    Filed: June 8, 2001
    Publication date: November 6, 2003
    Inventors: Takeshi Hom-Ma, Nagayoshi Myo, Takaya Sato, Hironobu Nanbu
  • Aggregates of spherical multivalent metal alginate microparticles and methods of making them
    Patent number: 6274174
    Abstract: The present inventors have made studies for the purpose of establishing a process for preparing controlled-release preparations which can rapidly release 99% or more of a slightly soluble medicament (which has by itself shows a slow dissolution rate) in the upper part of the small intestine. As a result, the inventors have succeeded in establishing a process comprising carrying a slightly soluble medicament which has a slow intestinal dissolution rate on aggregates of the spherical microparticles of a multivalent metal alginate, in which each of the secondary particles (i.e., the aggregates) has a specific surface area ranging from 1 to 280 m2/g. This success leads to the accomplishment of the present invention.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: August 14, 2001
    Assignees: Nisshinbo Industries, Inc., Freund Industrial Co., Ltd.
    Inventors: Takeshi Hom-ma, Nagayoshi Myo, Takaya Sato, Hironobu Nanbu