Granted Patent
Utility
US 6,111,630 · App. 09/127,959
Liquid crystal projector having a cooler and an air velocity sensor
Inventors:
Kiyoshi Watanuki, Mitsugi Kojima, Sousuke Hisamatsu, Kouichi Yamamoto
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Aug 3, 1998
Inventors
Kiyoshi Watanuki
Mitsugi Kojima
Sousuke Hisamatsu
Kouichi Yamamoto
Assignees (at issue)
HITACHI, LTD.
Hitachi Video and Information Systems, Inc.
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.