Granted Patent
Utility
US 5,559,355 · App. 08/492,854
Vertical MOS semiconductor device
Inventors:
Tomoyuki Yamazaki, Shigeyuki Obinata, Masahito Otsuki, Seiji Momota, Tatsuhiko Fujihira
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Jun 20, 1995
Inventors
Tomoyuki Yamazaki
Shigeyuki Obinata
Masahito Otsuki
Seiji Momota
Tatsuhiko Fujihira
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.