Patents by Inventor Tomio Matsubara

Tomio Matsubara 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).

  • Deeply dyed polyester fabric
    Patent number: 5385784
    Abstract: A deeply dyed polyester fabric exhibiting a lightness index L* value of 25 to 60. Fibers at least in the surface layer portion of either or both of the warps and wefts exhibit a light transmittance to an extent such that the difference .DELTA.X (%) between the light transmittance X.perp. (%) of polarized light vibrating perpendicular to the fiber axis at a wavelength of the maximum absorption and the light transmittance X .sup.[ (%) of polarized light vibrating parallel to the fiber axis at the same wavelength is not larger than 10%.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: January 31, 1995
    Assignee: Teijin Limited
    Inventors: Yoshiyuki Sasaki, Shigenobu Kobayashi, Katsuyuki Kasaoka, Tomio Matsubara, Kaoru Asada