Granted Patent
Utility
US 5,340,416 · App. 07/997,780
High-strength magnesium-based alloy
Inventors:
Toshisuke Shibata, Akihisa Inoue, Tsuyoshi Masumoto
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Dec 28, 1992
Inventors
Toshisuke Shibata
Akihisa Inoue
Tsuyoshi Masumoto
Assignees (at issue)
Tsuyoshi Masumoto
Yoshida Kogyo K.K.
Akihisa Inoue
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.