Granted Patent
Utility
US 6,816,337 · App. 09/424,180
Magnetic recording device having a particular frame plate configuration
Inventors:
Katsutoshi Mukaijima, Maki Wakita, Shoji Takahashi
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Feb 10, 2000
Inventors
Katsutoshi Mukaijima
Maki Wakita
Shoji Takahashi
Assignees (at issue)
IO-Mega Holding Corporation
CITIZEN WATCH 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.