Granted Patent
Utility
US 6,424,048 · App. 09/601,411
Semiconductor chip, semiconductor device, circuit board and electronic equipment and production methods for them
Inventors:
Kazushige Umetsu, Jun Amako, Shinichi Yotsuya, Katsuji Arakawa
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Aug 14, 2000
Inventors
Kazushige Umetsu
Jun Amako
Shinichi Yotsuya
Katsuji Arakawa
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.