Patents by Inventor Mami Muratani

Mami Muratani 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 system with wavelength selecting device
    Publication number: 20050231816
    Abstract: The object is to provide an optical system with a wavelength selecting device. According to one aspect of the present invention, an optical system with a wavelength selecting device includes, in order from an object along an optical axis, an objective optical system composed of optical elements having refractive power and an aperture stop, a no-power optical group composed of optical elements having no refractive power, and an imaging device. The no-power optical group includes the wavelength selecting device for making short wavelength light be selectively substantially non-transparent. The wavelength selecting device preferably satisfies the predetermined conditional expressions.
    Type: Application
    Filed: June 14, 2005
    Publication date: October 20, 2005
    Inventors: Akihiko Obama, Kouichi Ohshita, Mami Muratani
  • Optical system with wavelength selecting device
    Publication number: 20050030636
    Abstract: The object is to provide an optical system with a wavelength selecting device. According to one aspect of the present invention, an optical system with a wavelength selecting device includes, in order from an object along an optical axis, an objective optical system composed of optical elements having refractive power and an aperture stop, a no-power optical group composed of optical elements having no refractive power, and an imaging device. The no-power optical group includes the wavelength selecting device for making short wavelength light be selectively substantially non-transparent. The wavelength selecting device preferably satisfies the predetermined conditional expressions.
    Type: Application
    Filed: September 21, 2004
    Publication date: February 10, 2005
    Inventors: Kouichi Ohshita, Mami Muratani
  • Optical system with wavelength selecting device
    Publication number: 20030197947
    Abstract: The object is to provide an optical system with a wavelength selecting device. According to one aspect of the present invention, an optical system with a wavelength selecting device includes, in order from an object along an optical axis, an objective optical system composed of optical elements having refractive power and an aperture stop, a no-power optical group composed of optical elements having no refractive power, and an imaging device. The no-power optical group includes the wavelength selecting device for making short wavelength light be selectively substantially non-transparent. The wavelength selecting device preferably satisfies the predetermined conditional expressions.
    Type: Application
    Filed: December 12, 2002
    Publication date: October 23, 2003
    Applicant: Nikon Corporation
    Inventors: Akihiko Obama, Kouichi Ohshita, Mami Muratani