Patents by Inventor Seiichiro Ejima

Seiichiro Ejima 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).

  • Method and apparatus for producing binary picture with detection and retention of plural binary picture blocks having a thin line pattern including an oblique line
    Patent number: 5121222
    Abstract: Binary picture reducing method and apparatus are disclosed, wherein an original picture is divided for a block of a pattern matrix composed of a predetermined number of picture elements, thereby extracting a plurality of binary picture blocks. When the plurality of binary picture blocks each agree with a predetermined thin line pattern, the binary picture block is detected as a thin line block. The thin line block thus detected is retained on an output picture at a position corresponding to a predetermined reduction ratio.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: June 9, 1992
    Inventors: Toshiaki Endoh, Hisaharu Kato, Seiichiro Ejima, Yasuhiro Yamazaki