Granted Patent
Utility
US 4,543,311 · App. 06/401,857
Toner image pressure fixing method
Inventors:
Hiroyuki Takagiwa, Syunji Matsuo, Makoto Tomono
Patented Case
View Patent ↗
Granted: Sep 24, 1985
Filed: Jul 26, 1982
Inventors
Hiroyuki Takagiwa
Syunji Matsuo
Makoto Tomono
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.