Granted Patent
Utility
US 6,337,039 · App. 09/560,916
Method for making optical disk by injection molding
Inventors:
Hiroshi Yamaki, Yoshimasa Matsuura, Hiroshi Kataoka
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Apr 28, 2000
Inventors
Hiroshi Yamaki
Yoshimasa Matsuura
Hiroshi Kataoka
Assignee (at issue)
ASAHI KASEI KABUSHIKI KAISHA
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.