Granted Patent
Utility
US 6,461,001 · App. 09/839,129
Illumination apparatus and projection type display apparatus
Inventors:
Shinji Okamori, Akihisa Miyata, Takeshi Utakoji, Shinsuke Shikama
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Apr 23, 2001
Inventors
Shinji Okamori
Akihisa Miyata
Takeshi Utakoji
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.