Granted Patent
Utility
US 6,379,644 · App. 09/410,072
Process for producing a positive electrode active material for a nonaqueous secondary battery and a nonaqueous secondary battery using the active material
Inventors:
Naoto Torata, Takehito Mitate, Toyoshi Iida, Tetsushi Makino, Shigeyuki Hamano, Tomohiko Inada
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Oct 1, 1999
Inventors
Naoto Torata
Takehito Mitate
Toyoshi Iida
Tetsushi Makino
Shigeyuki Hamano
Tomohiko Inada
Assignee (at issue)
SHARP KABUSHIKI KAISHA
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.