Granted Patent
Utility
US 6,810,906 · App. 10/393,948
Flow control device
Inventors:
Satoshi Tanaka, Hideaki Emoto
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Mar 24, 2003
Inventors
Satoshi Tanaka
Hideaki Emoto
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.