Patents by Inventor Yoshinor Isogaki

Yoshinor Isogaki 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 electrophotographically reproducing a desired portion of an original on copying paper
    Patent number: 4641951
    Abstract: A method and apparatus for reproducing a desired portion of letters and/or patterns in an original on a copying paper, wherein the system is computerized so as to obtain the necessary information from the data stored with respect to the distance components derived from the original, and on the basis of the information, an area excluding the desired portion of the original is deelectrified so as to exclude the area from the expected reproduction of the desired portion on the copying paper.
    Type: Grant
    Filed: June 18, 1985
    Date of Patent: February 10, 1987
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Tsuneo Takagi, Kenjiro Tanabe, Masao Fukushima, Hiroki Kyushima, Kiyoshi Takenaka, Akira Okada, Yoshinor Isogaki