Granted Patent
Utility
US 6,814,764 · App. 09/966,918
Method for producing cathode active material and method for producing non-aqueous electrolyte cell
Inventors:
Mamoru Hosoya, Yuzuru Fukushima, Hideki Sakai, Junji Kuyama
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Sep 28, 2001
Inventors
Mamoru Hosoya
Yuzuru Fukushima
Hideki Sakai
Junji Kuyama
Assignee (at issue)
SONY GROUP 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.