Granted Patent
Utility
US 6,623,890 · App. 09/791,877
Positive electrode material and battery for nonaqueous electrolyte secondary battery
Inventors:
Fumio Munakata, Tatsuhiro Fukuzawa, Yasuhiko Ohsawa, Yuuji Tanjo, Takuya Mihara, Takashi Kimura, Kazuo Sunahara, Manabu Suhara
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Feb 26, 2001
Inventors
Fumio Munakata
Tatsuhiro Fukuzawa
Yasuhiko Ohsawa
Yuuji Tanjo
Takuya Mihara
Takashi Kimura
Kazuo Sunahara
Manabu Suhara
Assignees (at issue)
Nissan Motor Co., Ltd.
Seimi Chemical 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.