Patents by Inventor Etsumi Nakajo

Etsumi Nakajo 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).

  • Fixing method, optical component and pickup manufactured by the fixing method
    Publication number: 20090120569
    Abstract: Objective lens 20 is placed above the bobbin 40 at a position opposite to the light emitting end of the light guiding member, and the fixing portions 31 provided appropriately between the objective lens 20 and the lens support 41 are hardened in a short time because of being exposed to a UV hardening light beam which is selectively irradiated onto the fixing portions, or the intensity of which has been reduced to the wavelength region in which optical characteristics of the objective lens are practically deteriorated, in order to reduce the deterioration in the transmission characteristics in the wavelength range at which the optical elements are to be used, when fixing optical elements such as a plastic objective lens, etc., are used with a UV hardening type of adhesive.
    Type: Application
    Filed: December 31, 2008
    Publication date: May 14, 2009
    Inventors: Kazuo Ishida, Yoshitaka Toyoizumi, Etsumi Nakajo
  • Fixing method, optical component and pickup manufactured by the fixing method
    Patent number: 7499229
    Abstract: Objective lens 20 is placed above the bobbin 40 at a position opposite to the light emitting end of the light guiding member, and the fixing portions 31 provided appropriately between the objective lens 20 and the lens support 41 are hardened in a short time because of being exposed to a UV hardening light beam which is selectively irradiated onto the fixing portions, or the intensity of which has been reduced to the wavelength region in which optical characteristics of the objective lens are practically deteriorated, in order to reduce the deterioration in the transmission characteristics in the wavelength range at which the optical elements are to be used, when fixing optical elements such as a plastic objective lens, etc., are used with a UV hardening type of adhesive.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: March 3, 2009
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Kazuo Ishida, Yoshitaka Toyoizumi, Etsumi Nakajo
  • Fixing method, optical component and pickup manufactured by the fixing method
    Publication number: 20050264900
    Abstract: Objective lens 20 is placed above the bobbin 40 at a position opposite to the light emitting end of the light guiding member, and the fixing portions 31 provided appropriately between the objective lens 20 and the lens support 41 are hardened in a short time because of being exposed to a UV hardening light beam which is selectively irradiated onto the fixing portions, or the intensity of which has been reduced to the wavelength region in which optical characteristics of the objective lens are practically deteriorated, in order to reduce the deterioration in the transmission characteristics in the wavelength range at which the optical elements are to be used, when fixing optical elements such as a plastic objective lens, etc., are used with a UV hardening type of adhesive.
    Type: Application
    Filed: May 25, 2005
    Publication date: December 1, 2005
    Inventors: Kazuo Ishida, Yoshitaka Toyoizumi, Etsumi Nakajo