Granted Patent
Utility
US 5,556,721 · App. 08/274,633
Non-aqueous electrolyte secondary battery and production method of the same
Inventors:
Tomio Sasaki, Tsugio Sakai, Kensuke Tahara
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Jul 13, 1994
Inventors
Tomio Sasaki
Tsugio Sakai
Kensuke Tahara
Assignees (at issue)
SEIKO INSTRUMENTS INC.
Seiko Electronic Components 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.