Granted Patent
Utility
US 5,906,874 · App. 08/988,672
Optical recording medium, and its fabrication method
Inventors:
Makoto Takahashi, Takashi Kikukawa, Isamu Kuribayashi, Junji Tominaga
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: Dec 11, 1997
Inventors
Makoto Takahashi
Takashi Kikukawa
Isamu Kuribayashi
Junji Tominaga
Assignee (at issue)
TDK 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.