Granted Patent
Utility
US 6,368,744 · App. 09/440,537
Nonaqueous electrolyte battery having a casing constituted by a laminate film
Inventors:
Tsuyonobu Hatazawa, Kazuhito Hatta, Tomitaro Hara, Takashi Ono, Kouji Watanabe
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: Nov 16, 1999
Inventors
Tsuyonobu Hatazawa
Kazuhito Hatta
Tomitaro Hara
Takashi Ono
Kouji Watanabe
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.