Patents by Inventor Masakatsu SETOGUCHI

Masakatsu SETOGUCHI 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).

  • OPTICAL FIBER
    Publication number: 20220291472
    Abstract: An optical fiber (10) capable of minimizing strength deterioration includes a core (11) and a clad (12) arranged around the core (11) such that part of the core (11) is exposed. A rough surface portion is provided at least at part of an outer surface of the exposed portion (11a) of the core (11) exposed through the clad (12). The arithmetic surface roughness Ra of the rough surface portion is equal to or greater than 0.2 ?m. The average length Rsm of a rough curve element of the rough surface portion is equal to or greater than 17 ?m.
    Type: Application
    Filed: August 28, 2020
    Publication date: September 15, 2022
    Inventors: Hideyuki HIRANO, Keiichiro HIROSE, Syoji NAKAZONO, Akihiko KOYAMA, Takaya KONISHI, Ai TAKAHASHI, Masakatsu SETOGUCHI