Granted Patent
Utility
US 5,116,802 · App. 07/644,583
Heat-sensitive recording material
Inventors:
Naoto Arai, Kazuo Watanabe
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Jan 23, 1991
Inventors
Naoto Arai
Kazuo Watanabe
Assignee (at issue)
Kanzaki Paper Manufacturing 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.