Granted Patent
Utility
US 4,514,487 · App. 06/484,692
Method for manufacturing toner for electrophotography
Inventors:
Takahira Kasuya, Hideaki Morita, Hiroyuki Takagiwa, Goichi Yamakawa
Patented Case
View Patent ↗
Granted: Apr 30, 1985
Filed: Apr 14, 1983
Inventors
Takahira Kasuya
Hideaki Morita
Hiroyuki Takagiwa
Goichi Yamakawa
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.