Granted Patent
Utility
US 6,593,026 · App. 09/695,278
Sealed battery and method for manufacturing sealed battery
Inventors:
Kazuyuki Tukawaki, Kiyohide Takimoto, Hiroyuki Mizuno, Yuichi Maekawa
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Oct 25, 2000
Inventors
Kazuyuki Tukawaki
Kiyohide Takimoto
Hiroyuki Mizuno
Yuichi Maekawa
Assignee (at issue)
NEC Tokin Tochigi, 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.