Granted Patent
Utility
US 4,656,347 · App. 06/695,698
Diffraction grating position adjuster using a grating and a reflector
Inventors:
Atsunobu Une, Makoto Iki, Nobuyuki Takeuchi, Kimiyoshi Deguchi
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Jan 28, 1985
Inventors
Atsunobu Une
Makoto Iki
Nobuyuki Takeuchi
Kimiyoshi Deguchi
Assignee (at issue)
Nippon Telegraph and Telephone Public Corporation
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.