Granted Patent
Utility
US 5,169,731 · App. 07/810,537
Solid oxide fuel cell and method for manufacturing the same
Inventors:
Takayoshi Yoshimura, Toshio Arai, Masaki Sato
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Dec 19, 1991
Inventors
Takayoshi Yoshimura
Toshio Arai
Masaki Sato
Assignee (at issue)
Yoshida Kogyo K.K.
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.