Patents by Inventor Nobuo Bamba

Nobuo Bamba 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).

  • Patent number: 4580151
    Abstract: A hologram array is utilized having a plurality of adjacent holograms which are illuminated at an acute angle by laser diodes. Each laser diode output is modulated by an information source such as a computer output or the like. The outputs of the hologram array leave the hologram at an acute angle such that the focal points of the beams leaving the hologram array are focused on the object surface (a photoreceptor or the like). Closely controlled spacing of the outputs of the holograms is achieved by appropriate spacing of the holograms. In order to provide two-dimensional scanning, an appropriate combination of spherical and cylindrical lenses may be utilized together with a moving polygonal mirror to move the output beams from the hologram across the surface of the photoreceptor.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: April 1, 1986
    Assignee: Ricoh Company, Ltd.
    Inventor: Nobuo Bamba