Patents by Inventor Sadaharu HOMAN

Sadaharu HOMAN 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).

  • Publication number: 20240329345
    Abstract: A core portion of each of optical fibers of an optical fiber cable is made of pure silica glass, an effective cross-sectional area of the core portion at a wavelength of 1550 nm is 110 ?m2 or more and 150 ?m2 or less. The optical fibers include an intermittent connection portion in which a connection portion to which an adhesive resin is applied and a non-connection portion to which the adhesive resin is not applied are alternately provided between adjacent optical fibers. The optical fiber ribbon has a ratio of a total adhesion length to which the adhesive resin is applied to a total length between all the optical fibers of 40% or more per a unit length of the optical fiber ribbon, and an occupancy ratio of the optical fiber ribbon to a cross-sectional area of the internal space is 30% or more and 40% or less.
    Type: Application
    Filed: August 24, 2022
    Publication date: October 3, 2024
    Inventors: Yutaka HASHIMOTO, Fumiaki SATO, Masashi KIKUCHI, Soichi ISHIKAWA, Akira SAKURAI, Yusuke YAMADA, Sadaharu HOMAN