Granted Patent
Utility
US 4,915,516 · App. 07/222,428
Thermal transfer recording apparatus with ink paper cassette
Inventors:
Hiroshi Shimizu, Naohiro Ozawa, Toshihiko Gotoh, Kentaro Hamma
Patented Case
View Patent ↗
Granted: Apr 10, 1990
Filed: Jul 21, 1988
Inventors
Hiroshi Shimizu
Naohiro Ozawa
Toshihiko Gotoh
Kentaro Hamma
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.