Patents by Inventor Muneaki Ichihara

Muneaki Ichihara 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 and method for fabricating the same
    Patent number: 8396340
    Abstract: An optical fiber includes: a core (1) having an outer diameter (D1) of greater than or equal to 8.2 ?m and less than or equal to 10.2 ?m; a first cladding (2) surrounding the core (1) and having an outer diameter (D2) of greater than or equal to 30 ?m and less than or equal to 45 ?m; a second cladding (3) surrounding the first cladding (2) and having a thickness (T) of greater than or equal to 7.4 ?m; and a support layer (4) surrounding the second cladding (3). The relative refractive index difference which is the ratio of the difference between the refractive index of the support layer (4) and that of the second cladding (3) to the refractive index of the support layer (4) is greater than or equal to 0.5%.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: March 12, 2013
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Haruo Ooizumi, Masayoshi Hachiwaka, Takaharu Kinoshita, Muneaki Ichihara, Masataka Kon
  • OPTICAL FIBER AND METHOD FOR FABRICATING THE SAME
    Publication number: 20100247048
    Abstract: An optical fiber includes: a core (1) having an outer diameter (D1) of greater than or equal to 8.2 ?m and less than or equal to 10.2 ?m; a first cladding (2) surrounding the core (1) and having an outer diameter (D2) of greater than or equal to 30 ?m and less than or equal to 45 ?m; a second cladding (3) surrounding the first cladding (2) and having a thickness (T) of greater than or equal to 7.4 ?m; and a support layer (4) surrounding the second cladding (3). The relative refractive index difference which is the ratio of the difference between the refractive index of the support layer (4) and that of the second cladding (3) to the refractive index of the support layer (4) is greater than or equal to 0.5%.
    Type: Application
    Filed: November 13, 2008
    Publication date: September 30, 2010
    Applicant: Mitsubishi Cable Industries, Ltd.
    Inventors: Haruo Ooizumi, Masayoshi Hachiwaka, Takaharu Kinoshita, Muneaki Ichihara, Masataka Kon