Granted Patent
Utility
US 4,646,309 · App. 06/540,015
Dye laser
Inventors:
Takashi Arisawa, Yoichiro Maruyama, Koreyuki Shiba, Toshio Niwa, Masaharu Kaneko, Hitoshi Ono
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Oct 7, 1983
Inventors
Takashi Arisawa
Yoichiro Maruyama
Koreyuki Shiba
Toshio Niwa
Masaharu Kaneko
Hitoshi Ono
Assignees (at issue)
Japan Atomic Energy Research Institute
Mitsubishi Chemical Industries, 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.