Granted Patent
Utility
US 6,277,516 · App. 09/253,049
Lead for use with lithium-ion secondary cell, lead ribbon, lithium-ion secondary cell and method of sealing container of lithium-ion secondary cell
Inventors:
Yoshinari Sasaki, Koichi Muto, Hisashi Ohba
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: Feb 19, 1999
Inventors
Yoshinari Sasaki
Koichi Muto
Hisashi Ohba
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.