Patents by Inventor Ariko Imaoji

Ariko Imaoji 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: 6471944
    Abstract: Powdery aerosol preparations, which are characterized in that 50 to 90% by weight of a propellant having a vapor pressure at 20° C. of 4.5 kg/cm2 or less, 5 to 30% by weight of an aliphatic hydrocarbon having a boiling point of 5 to 40° C., 0.5 to 20% by weight of a powdery component and 1 to 20% by weight of a lower alcohol are packed in a container provided with a straight nozzle button having an orifice of 0.7 to 2.0 mm, show improved adhesion of the powders and the active ingredients to the skin and give an excellent feel in using, are provided.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: October 29, 2002
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Tsuyoshi Uchiyama, Megumi Suzuki, Ariko Imaoji
  • Patent number: 6161735
    Abstract: The present invention is intended to provide a dispenser structure for aerosol containers, which can control the discharge rate of aerosol and ensure satisfactory and safe dispensing of the aerosol while preventing the particle size of the dispensed aerosol from becoming too fine and preventing its excessive scattering which too fine particles would entail. Its structure is characterized in that it includes a dispenser (1) provided with a dispensing guide or first nozzle (11) communicating with a dispensing valve (2); a second nozzle (10) provided within the dispensing guide or first nozzle (11) and having a smaller dispensing port (10a) whose bore d is not more than 0.5 mm; and a larger dispensing port (1a) having a bore b of 0.8 to 3 mm and a length c of not less than 5 mm, formed within the dispensing guide or first nozzle (11) downstream, in the direction of dispensing from the second nozzle (10).
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: December 19, 2000
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Tsuyoshi Uchiyama, Ariko Imaoji