Patents by Inventor Syuichi Kusunoki

Syuichi Kusunoki 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).

  • Graded index multimode optical fiber
    Patent number: 8554036
    Abstract: A graded index multimode optical fiber (10) includes: a core (11) having an outside diameter of 45-65 ?m; a first cladding (12) surrounding the core (11); a second cladding (13) surrounding the first cladding (12) and made of a material having a lower refractive index than the first cladding (12); and a third cladding (14) surrounding the second cladding (13) and made of a material having a higher refractive index than the second cladding (13). The ratio of the outside diameter of the first cladding (12) to the outside diameter of the core (11) is 1.15-1.25.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: October 8, 2013
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Haruo Ooizumi, Syuichi Kusunoki, Takaharu Kinoshita, Masayoshi Hachiwaka
  • GRADED INDEX MULTIMODE OPTICAL FIBER
    Publication number: 20110002590
    Abstract: A graded index multimode optical fiber (10) includes: a core (11) having an outside diameter of 45-65 ?m; a first cladding (12) surrounding the core (11); a second cladding (13) surrounding the first cladding (12) and made of a material having a lower refractive index than the first cladding (12); and a third cladding (14) surrounding the second cladding (13) and made of a material having a higher refractive index than the second cladding (13). The ratio of the outside diameter of the first cladding (12) to the outside diameter of the core (11) is 1.15-1.25.
    Type: Application
    Filed: March 13, 2009
    Publication date: January 6, 2011
    Inventors: Haruo Ooizumi, Syuichi Kusunoki, Takaharu Kinoshita, Masayoshi Hachiwaka