Patents by Inventor Noritaka Honma

Noritaka Honma 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, optical transmission line, and optical communications system
    Patent number: 6917743
    Abstract: An optical fiber capable of compensating in the L-band both the chromatic dispersion and dispersion slope of a positive-dispersion optical fiber, an optical transmission line incorporating the optical fiber, and an optical communications system incorporating the optical transmission line. An optical communications system 1 comprises an optical transmission line 10, an optical transmitter 20, and an optical receiver 30. The optical transmission line 10 comprises an optical fiber 11 and an optical fiber 12 that are mutually fusion-spliced. The optical fiber 12 has at a wavelength of 1,590 nm a chromatic dispersion, D2, and a dispersion slope, S2, that satisfy the formulae ?200 ps/nm/km?D2??50 ps/nm/km, and 0.009/nm?S2/D2.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: July 12, 2005
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Noritaka Honma, Takatoshi Kato
  • Optical fiber, optical transmission line, and optical communications system
    Publication number: 20040017988
    Abstract: An optical fiber capable of compensating in the L-band both the chromatic dispersion and dispersion slope of a positive-dispersion optical fiber, an optical transmission line incorporating the optical fiber, and an optical communications system incorporating the optical transmission line. An optical communications system 1 comprises an optical transmission line 10, an optical transmitter 20, and an optical receiver 30. The optical transmission line 10 comprises an optical fiber 11 and an optical fiber 12 that are mutually fusion-spliced. The optical fiber 12 has at a wavelength of 1,590 nm a chromatic dispersion, D2, and a dispersion slope, S2, that satisfy the formulae −200 ps/nm/km≦D2≦−50 ps/nm/km, and 0.009/nm≦S2/D2.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 29, 2004
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Noritaka Honma, Takatoshi Kato