Granted Patent
Utility
US 4,925,735 · App. 07/267,692
Resin composition for heat-sensitive transfer recording medium and heat-sensitive transfer recording medium
Inventors:
Kunihiro Koshizuka, Masao Asano, Toshiaki Tezuka, Tatsuichi Maehashi, Yasuhiko Tanaka
Patented Case
View Patent ↗
Granted: May 15, 1990
Filed: Nov 2, 1988
Inventors
Kunihiro Koshizuka
Masao Asano
Toshiaki Tezuka
Tatsuichi Maehashi
Yasuhiko Tanaka
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.