Granted Patent
Utility
US 6,136,403 · App. 09/122,195
Buffered nitrogenated carbon overcoat for data recording disks and method for manufacturing the same
Inventors:
Chanapatna Krishnamorthy Prabhakara, Amrik Singh Lehil, Stella Zofia Gornicki, Keith Samuel Goodson, Wing Tsang Tang
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Jul 24, 1998
Inventors
Chanapatna Krishnamorthy Prabhakara
Amrik Singh Lehil
Stella Zofia Gornicki
Keith Samuel Goodson
Wing Tsang Tang
Assignee (at issue)
Western Digital
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.