Granted Patent
Utility
US 5,212,145 · App. 07/917,267
Heat sensitive recording material
Inventors:
Tetsuo Tsuchida, Yasuji Koga, Haruo Omura, Yoshihiro Shimizu, Shuji Yoda
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Jul 23, 1992
Inventors
Tetsuo Tsuchida
Yasuji Koga
Haruo Omura
Yoshihiro Shimizu
Shuji Yoda
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.