Granted Patent
Utility
US 4,752,534 · App. 07/081,321
Thermal transfer recording medium
Inventors:
Kunihiro Koshizuka, Shigehiro Kitamura, Takao Abe
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Aug 3, 1987
Inventors
Kunihiro Koshizuka
Shigehiro Kitamura
Takao Abe
Assignee (at issue)
Konishiroku Photo Industry 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.