Granted Patent
Utility
US 6,674,045 · App. 10/090,780
Galvanometer controller and laser machining apparatus
Inventors:
Kazuaki Iwase, Akihiko Okano
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Mar 6, 2002
Inventors
Kazuaki Iwase
Akihiko Okano
Assignee (at issue)
NEC 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.