Granted Patent
Utility
US 5,177,592 · App. 07/671,554
Semiconductor device
Inventors:
Katsuyuki Takahashi, Kenji Kodera, Mutsumi Sasaki
Patented Case
View Patent ↗
Granted: Jan 5, 1993
Filed: Mar 19, 1991
Inventors
Katsuyuki Takahashi
Kenji Kodera
Mutsumi Sasaki
Assignee (at issue)
Nippon Precision Circuits Inc.
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.