Granted Patent
Utility
US 6,400,653 · App. 09/355,831
Information recording/reproducing apparatus to record/reproduce information on a recording medium recorded with an address mark
Inventors:
Kenji Torazawa, Kenji Asano, Satoshi Sumi, Yoshiharu Uchihara, Noboru Mamiya, Toshiaki Hioki
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Aug 5, 1999
Inventors
Kenji Torazawa
Kenji Asano
Satoshi Sumi
Yoshiharu Uchihara
Noboru Mamiya
Toshiaki Hioki
Assignee (at issue)
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.