Granted Patent
Utility
US 5,420,558 · App. 08/067,058
Thin film transformer
Inventors:
Naoki Ito, Tsuneo Watanabe, Yoshiyuki Sugahara, Toshio Komori
Patented Case
View Patent ↗
Granted: May 30, 1995
Filed: May 26, 1993
Inventors
Naoki Ito
Tsuneo Watanabe
Yoshiyuki Sugahara
Toshio Komori
Assignee (at issue)
FUJI ELECTRIC 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.