Granted Patent
Utility
US 6,694,460 · App. 09/794,073
Semiconductor memory device having deterioration determining function
Inventors:
Kunihiro Katayama, Takayuki Tamura, Masashi Naito, Shigemasa Shiota
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Feb 28, 2001
Inventors
Kunihiro Katayama
Takayuki Tamura
Masashi Naito
Shigemasa Shiota
Assignee (at issue)
Renesas Technology Corporation
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.