Granted Patent
Utility
US 6,500,596 · App. 09/790,637
Method for producing an electrostatic image developing toner
Inventors:
Takayuki Tanabe, Akifumi Nemoto
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Feb 23, 2001
Inventors
Takayuki Tanabe
Akifumi Nemoto
Assignee (at issue)
MITSUBISHI CHEMICAL CORPORATION
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.