ALEXANDRIA, Va., July 9 -- United States Patent no. 12,353,145, issued on July 8, was assigned to CANON K.K. (Tokyo).
"Developing device" was invented by Osamu Ariizumi (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A developing device includes a first rotatable member having a rotation center Q and a second rotatable member having a rotation center R. When a rectilinear line connecting the rotation center Q and an intersection point X is a rectilinear line L4, a rectilinear line connecting the rotation center Q and a magnetic flux density peak position Y is a rectilinear line L5, a rectilinear line connecting the rotation center Q and a magnetic flux density peak position Z is a rectilinear li...