Granted Patent
Utility
US 5,555,087 · App. 08/260,223
Method and apparatus for employing a light source and heterodyne interferometer for obtaining information representing the microstructure of a medium at various depths therein
Inventors:
Ichirou Miyagawa, Masahiro Toida
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: Jun 14, 1994
Inventors
Ichirou Miyagawa
Masahiro Toida
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.