Granted Patent
Utility
US 6,001,139 · App. 08/860,804
Nonaqueous secondary battery having multiple-layered negative electrode
Inventors:
Hiroyuki Asanuma, Hiroshi Inoue, Yukio Maekawa, Mitsutoshi Tanaka, Yukio Miyaki, Hiroshi Ishizuka, Shoichiro Yasunami, Kazuo Sugiyama
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: Jul 10, 1997
Inventors
Hiroyuki Asanuma
Hiroshi Inoue
Yukio Maekawa
Mitsutoshi Tanaka
Yukio Miyaki
Hiroshi Ishizuka
Shoichiro Yasunami
Kazuo Sugiyama
Assignee (at issue)
Fujitsu Limited
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.