Patents by Inventor Mikio Takeshima

Mikio Takeshima 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).

  • Coated glass fibers for optical transmission
    Patent number: 4334733
    Abstract: In a glass fiber for optical transmission comprising a primary coat, a thermoplastic resin coat, and a buffer coat between the primary coat and the thermoplastic resin coat, the improvement which comprises said thermoplastic resin being a polyamide having a modulus of elasticity of about 2,000 to 8,000 kg/cm.sup.2 at a temperature in the range of 20 to 23.degree. C.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: June 15, 1982
    Assignees: Nippon Telegraph & Telephone Public Corp., Sumitomo Electric Industries, Ltd.
    Inventors: Mikio Takeshima, Masaaki Kawase, Toru Yamanishi, Masaaki Yoshida