Granted Patent
Utility
US 6,654,167 · App. 09/994,169
Polarization scrambler and monochromator
Inventor:
Toshikazu Yamamoto
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Nov 26, 2001
Inventor
Toshikazu Yamamoto
Assignee (at issue)
Ando Electric Co., 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.