Granted Patent
Utility
US 4,600,676 · App. 06/641,348
Toner composition containing titanate coupling agent for electrophotography and method for producing said toner
Inventors:
Sadatugu Terada, Kiyoshi Tamaki, Hideki Murata, Akitoshi Matsubara, Tsuneo Wada, Hiroyuki Takagiwa
Patented Case
View Patent ↗
Granted: Jul 15, 1986
Filed: Aug 15, 1984
Inventors
Sadatugu Terada
Kiyoshi Tamaki
Hideki Murata
Akitoshi Matsubara
Tsuneo Wada
Hiroyuki Takagiwa
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.