Patents by Inventor Akihito Hazama

Akihito Hazama 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).

  • Noncoaxial bar code reader operable without condenser lens
    Patent number: 5796087
    Abstract: A bar code reader comprises: a laser for projecting light; a polygon mirror for scanning a bar code with light from the laser; a way-in window allowing the reflecting light from the bar code to pass therethrough; and a light receiving surface including a photo diode, for receiving the reflecting light through the way-in window and transforming the reflecting light into an electrical signal, wherein the light receiving surface is formed to take a rectangle corresponding to a shape and a size of the way-in window, the light receiving surface is placed apart from the way-in window, while facing the way-in window, and no condenser lens is provided between the light receiving surface and the way-in window.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: August 18, 1998
    Assignee: Keyence Corporation
    Inventor: Akihito Hazama