Granted Patent
Utility
US 6,169,855 · App. 09/309,910
Distance measuring apparatus
Inventors:
Naoto Nakahara, Takuma Sato, Kosei Kosako
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: May 11, 1999
Inventors
Naoto Nakahara
Takuma Sato
Kosei Kosako
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.