Granted Patent
Utility
US 6,465,967 · App. 09/902,001
Control circuit of light emitting element
Inventors:
Toshiaki Tsujikawa, Yoshio Sawada, Tadaaki Suda, Hiroyuki Basho
Patented Case
View Patent ↗
Granted: Oct 15, 2002
Filed: Jul 10, 2001
Inventors
Toshiaki Tsujikawa
Yoshio Sawada
Tadaaki Suda
Hiroyuki Basho
Assignees (at issue)
Nippon Precision Circuits Inc.
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.