Granted Patent
Utility
US 5,001,104 · App. 07/393,761
Heat-sensitive recording material
Inventors:
Yasuyoshi Morita, Masaaki Matsuoka, Satoshi Fukui, Kyoko Koyabu, Tatsuya Murata
Patented Case
View Patent ↗
Granted: Mar 19, 1991
Filed: Aug 14, 1989
Inventors
Yasuyoshi Morita
Masaaki Matsuoka
Satoshi Fukui
Kyoko Koyabu
Tatsuya Murata
Assignee (at issue)
Oji Paper 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.