Granted Patent
Utility
US 5,111,445 · App. 07/438,576
Holographic information storage system
Inventors:
Demetri Psaltis, Alan Yamamura, Seiji Kobayashi
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Nov 17, 1989
Inventors
Demetri Psaltis
Alan Yamamura
Seiji Kobayashi
Assignee (at issue)
SONY GROUP 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.