Patents by Inventor Kazuyuki Futami

Kazuyuki Futami 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).

  • Color image forming apparatus with positional deviation detecting pattern and method therefor
    Patent number: 5867759
    Abstract: A color image forming apparatus for superimposing images formed on a plurality of photoconductive elements onto a copy sheet includes a sensor for reading a transfer member and a positional deviation detecting pattern formed on the transfer member, a memory for storing information relating to an area having no roughness, such as a scar, on the transfer member, a detector for detecting the area having no roughness on the basis of a signal read by the sensor and for causing the memory to store the information relating to the area, and a color deviation corrector for correcting color deviation on the basis of the signal generated by the sensor reading the positional deviation detecting pattern. The positional deviation detecting pattern is formed at an area of the transfer member having no roughness.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: February 2, 1999
    Assignee: Ricoh Company, Ltd.
    Inventors: Takundo Isobe, Ken-ichirou Asada, Nobuyuki Satoh, Kazuyuki Futami, Toshio Shimazaki, Hideaki Sugata, Hiroshi Ono