Granted Patent
Utility
US 4,968,574 · App. 06/817,768
Toner for electrophotography
Inventors:
Hideaki Morita, Takahira Kasuya, Goichi Yamakawa, Makoto Tomono, Hirozo Funaki, Minoru Kohara
Patented Case
View Patent ↗
Granted: Nov 6, 1990
Filed: Jan 9, 1986
Inventors
Hideaki Morita
Takahira Kasuya
Goichi Yamakawa
Makoto Tomono
Hirozo Funaki
Minoru Kohara
Assignees (at issue)
SEKISUI CHEMICAL CO., LTD.
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.