Granted Patent
Utility
US 6,509,931 · App. 09/522,366
Resolution conversion unit and apparatus having resolution conversion unit
Inventors:
Hiroki Mizosoe, Hiroyasu Ohtsubo, Hiroyuki Komatsu
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Mar 9, 2000
Inventors
Hiroki Mizosoe
Hiroyasu Ohtsubo
Hiroyuki Komatsu
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.