Granted Patent
Utility
US 4,675,268 · App. 06/838,889
Process for transfer of a toner image utilizing a magnetic toner containing a binder resin and having gradual softening characteristics
Inventors:
Ken-ichi Kishi, Kenzi Tuzita, Tuneo Daidoji, Yuki Okuyama, Kiyoshi Kimura
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Mar 11, 1986
Inventors
Ken-ichi Kishi
Kenzi Tuzita
Tuneo Daidoji
Yuki Okuyama
Kiyoshi Kimura
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.