Granted Patent
Utility
US 6,383,685 · App. 09/533,971
Lithium secondary battery
Inventors:
Seiji Yoshimura, Masahisa Fujimoto, Shin Fujitani
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Mar 23, 2000
Inventors
Seiji Yoshimura
Masahisa Fujimoto
Shin Fujitani
Assignee (at issue)
SANYO ELECTRIC CO., 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.