Granted Patent
Utility
US 6,631,997 · App. 09/878,992
Light-source device and projection type display device
Inventors:
Akihisa Miyata, Shinji Okamori, Shinsuke Shikama
Patented Case
View Patent ↗
Granted: Oct 14, 2003
Filed: Jun 13, 2001
Inventors
Akihisa Miyata
Shinji Okamori
Shinsuke Shikama
Assignee (at issue)
MITSUBISHI ELECTRIC 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.