Patents by Inventor Kyoji OSOZAWA

Kyoji OSOZAWA 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, end part processing method of optical fiber, and end part processing apparatus of optical fiber
    Patent number: 8472769
    Abstract: An optical fiber that has no bubbles in the ultraviolet ray curable resin filled inside the air holes to seal the end parts thereof, an end part processing method of the optical fiber, and an end part processing apparatus of the optical fiber, are provided. In an end part processing method of an optical fiber that is comprised of a core and a cladding formed around the core, the cladding having a refraction index lower than that of the core and has a plurality of air holes formed therein along the axis of the core, wherein the end part process of the optical fiber is to form sealed portions on the ends of the air holes by sealing them with ultraviolet ray curable resin, the method is characterized in that the sealed portion is formed by heating the end of the optical fiber.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: June 25, 2013
    Assignee: Hitachi Cable, Ltd.
    Inventors: Masao Tachikura, Kazumasa Ohsono, Noribumi Shiina, Kanako Suzuki, Yoshikazu Namekawa, Kyoji Osozawa, Toshihiko Ishikawa, Masaru Ishikawa, Motoyoshi Nakamura
  • OPTICAL FIBER, END PART PROCESSING METHOD OF OPTICALFIBER, AND END PART PROCESSING APPARATUS OF OPTICAL FIBER
    Publication number: 20110110637
    Abstract: An optical fiber that has no bubbles in the ultraviolet ray curable resin filled inside the air holes to seal the end parts thereof, an end part processing method of the optical fiber, and an end part processing apparatus of the optical fiber, are provided. In an end part processing method of an optical fiber that is comprised of a core and a cladding formed around the core, the cladding having a refraction index lower than that of the core and has a plurality of air holes formed therein along the axis of the core, wherein the end part process of the optical fiber is to form sealed portions on the ends of the air holes by sealing them with ultraviolet ray curable resin, the method is characterized in that the sealed portion is formed by heating the end of the optical fiber.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 12, 2011
    Applicant: HITACHI CABLE, LTD.
    Inventors: Masao TACHIKURA, Kazumasa OHSONO, Noribumi SHIINA, Kanako SUZUKI, Yoshikazu NAMEKAWA, Kyoji OSOZAWA, Toshihiko ISHIKAWA, Masaru ISHIKAWA, Motoyoshi NAKAMURA