Granted Patent
Utility
US 6,480,418 · App. 09/951,979
Semiconductor non-volatile storage
Inventors:
Toshihiro Tanaka, Yutaka Shinagawa, Kazuyoshi Shiba, Kazufumi Suzukawa, Masamichi Fujito, Takayuki Oshima, Sonoko Abe, Kiyoshi Matsubara
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Sep 14, 2001
Inventors
Toshihiro Tanaka
Yutaka Shinagawa
Kazuyoshi Shiba
Kazufumi Suzukawa
Masamichi Fujito
Takayuki Oshima
Sonoko Abe
Kiyoshi Matsubara
Assignee (at issue)
HITACHI, 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.