Granted Patent
Utility
US 6,549,243 · App. 09/135,727
Digital broadcast receiver unit
Inventors:
Satoru Takashimizu, Kenji Katsumata, Yuji Yamamoto, Satoshi Iimuro, Takanori Eda, Shuko Sei
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Aug 18, 1998
Inventors
Satoru Takashimizu
Kenji Katsumata
Yuji Yamamoto
Satoshi Iimuro
Takanori Eda
Shuko Sei
Assignee (at issue)
HITACHI, 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.