Granted Patent
Utility
US 4,708,924 · App. 06/813,618
Pressure fixable microcapsule type toner
Inventors:
Tatsuo Nagai, Shinichi Suzuki, Hiroshi Yamazaki
Patented Case
View Patent ↗
Granted: Nov 24, 1987
Filed: Dec 26, 1985
Inventors
Tatsuo Nagai
Shinichi Suzuki
Hiroshi Yamazaki
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.