Granted Patent
Utility
US 6,521,373 · App. 09/641,267
Flat non-aqueous electrolyte secondary cell
Inventors:
Masami Suzuki, Muneto Hayami, Kazuo Udagawa, Kazuo Iizuka, Naomi Ishihara, Satoshi Hirahara, Hirotaka Sakai, Kiyoto Yoda, Masataka Shikota
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Aug 17, 2000
Inventors
Masami Suzuki
Muneto Hayami
Kazuo Udagawa
Kazuo Iizuka
Naomi Ishihara
Satoshi Hirahara
Hirotaka Sakai
Kiyoto Yoda
Masataka Shikota
Assignee (at issue)
Toshiba Battery 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.