Patents by Inventor Mitsuru Nishikama

Mitsuru Nishikama 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 code reading device whose laser reading light is transmitted by only one single mode optical fiber
    Patent number: 4847490
    Abstract: An optical code reading device comprises a light source and scanning head for projecting light for illuminating a code to be read, only one single mode optical fiber for transferring the light from the light source so that the spot size can be made as small as possible and shape of the light can be a true circle.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: July 11, 1989
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Mitsuru Nishikama