Granted Patent
Utility
US 5,010,497 · App. 07/294,677
Image information recorder having a resolution density transformation device
Inventor:
Akira Shimada
Patented Case
View Patent ↗
Granted: Apr 23, 1991
Filed: Jan 9, 1989
Inventor
Akira Shimada
Assignee (at issue)
HITACHI, LTD.
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.