Granted Patent
Utility
US 6,133,087 · App. 09/099,534
Method of making a DRAM element and a logic element
Inventor:
Iwao Shirakawa
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Jun 18, 1998
Inventor
Iwao Shirakawa
Assignee (at issue)
NEC 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.