Granted Patent
Utility
US 4,523,205 · App. 06/552,919
Heat-sensitive recording materials
Inventors:
Toshitake Suzuki, Ryuzo Hayashi, Naoto Arai, Yoshitaka Oeda
Patented Case
View Patent ↗
Granted: Jun 11, 1985
Filed: Nov 18, 1983
Inventors
Toshitake Suzuki
Ryuzo Hayashi
Naoto Arai
Yoshitaka Oeda
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.