Granted Patent
Utility
US 6,059,987 · App. 08/998,663
Ionic conductive material and electrochemical device comprising the same
Inventors:
Fusaji Kita, Akira Kawakami, Yurii Yagupolskii, Tatyana Savina, Natalya Kirij, Leonid Markovsky
Patented Case
View Patent ↗
Granted: May 9, 2000
Filed: Dec 29, 1997
Inventors
Fusaji Kita
Akira Kawakami
Yurii Yagupolskii
Tatyana Savina
Natalya Kirij
Leonid Markovsky
Assignee (at issue)
HITACHI MAXELL, LTD.
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.