Granted Patent
Utility
US 6,797,431 · App. 09/965,273
Method for the preparation of cathode active material and method for the preparation of non-aqueous electrolyte
Inventors:
Mamoru Hosoya, Kimio Takahashi, Yuzuru Fukushima
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Sep 27, 2001
Inventors
Mamoru Hosoya
Kimio Takahashi
Yuzuru Fukushima
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.