Granted Patent
Utility
US 6,728,138 · App. 10/373,872
Semiconductor memory device having faulty cells
Inventors:
Kunihiro Katayama, Takayuki Tamura, Satoshi Watatani, Kiyoshi Inoue, Shigemasa Shiota, Masashi Naito
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Feb 27, 2003
Inventors
Kunihiro Katayama
Takayuki Tamura
Satoshi Watatani
Kiyoshi Inoue
Shigemasa Shiota
Masashi Naito
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.