Granted Patent
Utility
US 6,297,593 · App. 09/586,565
Boosting transformer for high-frequency heating device
Inventors:
Yutaka Takashige, Shinichi Masuda
Patented Case
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Granted: Oct 2, 2001
Filed: Jun 2, 2000
Inventors
Yutaka Takashige
Shinichi Masuda
Assignee (at issue)
SHARP KABUSHIKI KAISHA
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.