Granted Patent
Utility
US 5,419,961 · App. 08/154,875
Magnetic recording medium with specified transverse and machine direction Young's modulus of the polyester film base
Inventors:
Osamu Kobayashi, Takayuki Deno, Ikuo Matsumoto
Patented Case
View Patent ↗
Granted: May 30, 1995
Filed: Nov 19, 1993
Inventors
Osamu Kobayashi
Takayuki Deno
Ikuo Matsumoto
Assignee (at issue)
Victor Company of Japan, 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.