Granted Patent
Utility
US 4,828,922 · App. 06/906,035
Heat-sensitive transfer recording medium
Inventors:
Kunihiro Koshizuka, Yoshihiro Inaba, Takao Abe, Tatsuichi Maehashi
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Sep 10, 1986
Inventors
Kunihiro Koshizuka
Yoshihiro Inaba
Takao Abe
Tatsuichi Maehashi
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.