Granted Patent
Utility
US 5,467,315 · App. 08/234,414
Semiconductor memory device facilitated with plural self-refresh modes
Inventors:
Takeshi Kajimoto, Yutaka Shimbo, Katsuyuki Sato, Masahiro Ogata, Kanehide Kenmizaki, Shouji Kubono, Nobuo Kato, Kiichi Manita, Michitaro Kanamitsu
Patented Case
View Patent ↗
Granted: Nov 14, 1995
Filed: Apr 28, 1994
Inventors
Takeshi Kajimoto
Yutaka Shimbo
Katsuyuki Sato
Masahiro Ogata
Kanehide Kenmizaki
Shouji Kubono
Nobuo Kato
Kiichi Manita
Michitaro Kanamitsu
Assignees (at issue)
HITACHI, LTD.
Hitachi VLSI Engineering Corp.
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.