Granted Patent
Utility
US 6,009,053 · App. 09/162,988
Optical disk vibration sensing and reproducing device
Inventors:
Takumi Ota, Akihiro Kishishita, Kiyoshi Kodani, Masayuki Hayashida
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Sep 29, 1998
Inventors
Takumi Ota
Akihiro Kishishita
Kiyoshi Kodani
Masayuki Hayashida
Assignees (at issue)
TOTTORI SANYO ELECTRIC CO., LTD.
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.