Granted Patent
Utility
US 5,973,777 · App. 08/880,543
Method and apparatus for inspecting defects of surface shape
Inventors:
Mineo Nomoto, Takanori Ninomiya, Yuji Takagi
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Jun 23, 1997
Inventors
Mineo Nomoto
Takanori Ninomiya
Yuji Takagi
Assignee (at issue)
HITACHI, 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.