Patents by Inventor Naoko Takemura

Naoko Takemura 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).

  • Light reflective sheet and light reflector using it
    Patent number: 5710856
    Abstract: A light reflective sheet is here disclosed which comprises a porous resin sheet and a protective layer laminated on at least one surface of the porous resin sheet; the porous resin sheet comprises a polyolefin resin and 100 to 300 parts by weight of a finely powdery inorganic filler with respect to 100 parts by weight of a polyolefin resin; the porous resin sheet is stretched at an area stretch magnification of 1.5 to 20 times; the light reflectance of the porous resin sheet at a wave length of 550 nm is 95% or more; and the stiffness of the light reflective sheet is at least 50 mm. A light reflector using the light reflective sheet is also disclosed. Preferably, the protective layer has a function as a UV light protective layer and/or a light leakage preventing auxiliary layer.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: January 20, 1998
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Toshiyuki Ishii, Katsumi Senba, Takayuki Kajihara, Naoko Takemura