Granted Patent
Utility
US 4,746,645 · App. 06/942,400
Heat-sensitive recording material
Inventors:
Teijiro Kitao, Mitsuru Kondo, Toshitake Suzuki, Masayuki Omatsu, Hironori Fujii, Kenji Minami
Patented Case
View Patent ↗
Granted: May 24, 1988
Filed: Dec 16, 1986
Inventors
Teijiro Kitao
Mitsuru Kondo
Toshitake Suzuki
Masayuki Omatsu
Hironori Fujii
Kenji Minami
Assignees (at issue)
Kanzaki Paper Manufacturing Co., Ltd.
SUGAI CHEMICAL 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.