Patents by Inventor Yukio Katana

Yukio Katana 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).

  • Bar code scanner with diffusion filter and plural linear light source arrays
    Patent number: 4743773
    Abstract: The present invention provides a bar code scanner applicable for use to scan various bar codes of different standards and sizes. Any malfunction due to nonuniform illumination of the bar code or maloperation can be prevented, and also the light source may not be normally turned on. This bar code scanner is usable as held by hand or fixed as desired.The opening of the scan head of the inventive bar code scanner is formed polygonal, and high light-transmission diffusion filter is provided between the light source and the opening. The light source consists of spot light sources disposed in plural linear arrays including the ones which are normally on for sensing the proximity to a bar code and the others which are turned on and off depending on whether the scan head is near or far from a bar code.
    Type: Grant
    Filed: August 21, 1985
    Date of Patent: May 10, 1988
    Assignee: Nippon Electric Industry Co., Ltd.
    Inventors: Yukio Katana, Masao Goto, Ichiro Sekiguchi