Granted Patent
Utility
US 5,574,597 · App. 08/062,550
Light scanner and multi-beam generator using the same
Inventor:
Keiji Kataoka
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: May 18, 1993
Inventor
Keiji Kataoka
Assignee (at issue)
Hitachi Koki Co., 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.