Granted Patent
Utility
US 5,389,419 · App. 08/215,609
Optical recording medium comprising a dye-incorporated composition
Inventors:
Shuichi Maeda, Satoru Imamura, Kazuo Mitsuhashi, Takako Tsukahara
Patented Case
View Patent ↗
Granted: Feb 14, 1995
Filed: Mar 22, 1994
Inventors
Shuichi Maeda
Satoru Imamura
Kazuo Mitsuhashi
Takako Tsukahara
Assignee (at issue)
Mitsubishi Kasei Corporation
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.