Granted Patent
Utility
US 6,181,584 · App. 09/534,532
Semiconductor device with internal power supply circuit, together with liquid crystal device and electronic equipment using the same
Inventors:
Norio Koizumi, Masahiko Tsuchiya
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Mar 27, 2000
Inventors
Norio Koizumi
Masahiko Tsuchiya
Assignee (at issue)
SEIKO EPSON 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.