Granted Patent
Utility
US 6,198,070 · App. 09/359,071
Laser beam machining method and laser beam machine
Inventor:
Masanori Nakayama
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Jul 22, 1999
Inventor
Masanori Nakayama
Assignee (at issue)
Nippei Toyama 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.