Granted Patent
Utility
US 6,294,949 · App. 09/588,615
Voltage drive circuit, voltage drive apparatus and semiconductor-device testing apparatus
Inventors:
Shoji Kojima, Takashi Sekino
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Jun 6, 2000
Inventors
Shoji Kojima
Takashi Sekino
Assignee (at issue)
Advantest 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.