Granted Patent
Utility
US 5,886,966 · App. 08/855,252
Optical disk vibration sensing and reproducing device
Inventors:
Takumi Ota, Akihiro Kishishita, Kiyoshi Kodani, Masayuki Hayashida
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: May 13, 1997
Inventors
Takumi Ota
Akihiro Kishishita
Kiyoshi Kodani
Masayuki Hayashida
Assignees (at issue)
SANYO ELECTRIC CO., LTD.
TOTTORI SANYO ELECTRIC 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.