Patents by Inventor Takahito Asaba

Takahito Asaba 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: 7551117
    Abstract: The present invention provides an all-weather radio wave absorber having reflector capable of smoothly attenuating harmful microwave or millimeter wave from 400 MHz to 100 GHz generated from various electronic devices so that bad effects on human body or electronic device can be eliminated. The all-weather radio wave absorber having reflector comprises a laminated radio wave absorbing composite comprising a foamed upper radio wave absorber 1 with a rugged surface or a flat surface including conductive particles such as carbon particles, ferrite particles or the like in continuous foams 2 formed therein, one or more foamed intermediate planar radio wave absorbers 3 including conductive particles such as carbon particles 7, ferrite particles or the like in continuous foams 2 formed therein, a thin radio wave reflector 4 at the bottom, and a flexible cover for wrapping the laminated absorbers and reflector together.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: June 23, 2009
    Assignee: Ubiquitous Environment Company
    Inventor: Takahito Asaba
  • Publication number: 20090021416
    Abstract: The present invention provides an all-weather radio wave absorber having reflector capable of smoothly attenuating harmful microwave or millimeter wave from 400 MHz to 100 GHz generated from various electronic devices so that bad effects on human body or electronic device can be eliminated. The all-weather radio wave absorber having reflector comprises a laminated radio wave absorbing composite comprising a foamed upper radio wave absorber 1 with a rugged surface or a flat surface including conductive particles such as carbon particles, ferrite particles or the like in continuous foams 2 formed therein, one or more foamed intermediate planar radio wave absorbers 3 including conductive particles such as carbon particles 7, ferrite particles or the like in continuous foams 2 formed therein, a thin radio wave reflector 4 at the bottom, and a flexible cover for wrapping the laminated absorbers and reflector together.
    Type: Application
    Filed: April 12, 2005
    Publication date: January 22, 2009
    Inventor: Takahito Asaba