Granted Patent
Utility
US 5,889,455 · App. 08/943,740
Electromagnet in which a coil member is inclined in an annular groove of a core
Inventor:
Yuki Sakamoto
Patented Case
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Granted: Mar 30, 1999
Filed: Oct 3, 1997
Inventor
Yuki Sakamoto
Assignee (at issue)
SANDEN 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.