Granted Patent
Utility
US 4,503,452 · App. 06/378,435
Plastic encapsulated semiconductor device and method for manufacturing the same
Inventors:
Masami Yokozawa, Isao KANAI
Patented Case
View Patent ↗
Granted: Mar 5, 1985
Filed: May 14, 1982
Inventors
Masami Yokozawa
Isao KANAI
Assignee (at issue)
Matsushita Electronics 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.