Patents by Inventor Kazumii Kokubo

Kazumii Kokubo 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 with antireflection coating, and method for manufacturing the same
    Patent number: 7201939
    Abstract: An optical member (for example, optical fiber) is dipped in a coating solution having a film forming material dissolved therein to form an antireflection film on the end surface of the optical member. When the optical member is pulled up from the coating solution, the angle formed by the level of the coating solution and the end surface of the optical member, or the pulling speed is varied to adjust the film thickness or reflectance of the antireflection film to be formed on the end surface of the optical member. The film forming material is a fluorine-containing compound. The antireflection film is formed by dipping. The film thickness of the antireflection film is uneven.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: April 10, 2007
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Takashi Takahashi, Masakazu Komine, Kazumii Kokubo, You Umeda