Granted Patent
Utility
US 5,869,372 · App. 08/555,426
Method of manufacturing a power semiconductor device
Inventors:
Tatsuhiko Fujihira, Seiji Momota, Takeyoshi Nishimura, Kazutoshi Sugimura, Masao Yoshino, Takashi Kobayashi
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Nov 9, 1995
Inventors
Tatsuhiko Fujihira
Seiji Momota
Takeyoshi Nishimura
Kazutoshi Sugimura
Masao Yoshino
Takashi Kobayashi
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.