Granted Patent
Utility
US 5,619,480 · App. 08/256,141
Magnetic recording medium and recording/reproducing method therefor as well as information processing apparatus by means thereof
Inventors:
Yuzo Seo, Shuichi Maeda
Patented Case
View Patent ↗
Granted: Apr 8, 1997
Filed: Aug 8, 1994
Inventors
Yuzo Seo
Shuichi Maeda
Assignee (at issue)
MITSUBISHI CHEMICAL 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.