Granted Patent
Utility
US 6,737,733 · App. 09/848,256
Sealed semiconductor device and lead frame used for the same
Inventors:
Kazuyuki Misumi, Kazunari Michii, Yoshihiro Hirata
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: May 4, 2001
Inventors
Kazuyuki Misumi
Kazunari Michii
Yoshihiro Hirata
Assignee (at issue)
Renesas Technology 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.