Granted Patent
Utility
US 6,367,015 · App. 09/084,323
User authentication using member with either holes or projections
Inventors:
Takeshi Kubo, Kazuhiro Igarashi, Hideyuki Saso
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: May 26, 1998
Inventors
Takeshi Kubo
Kazuhiro Igarashi
Hideyuki Saso
Assignee (at issue)
Fujitsu Limited
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.