Granted Patent
Utility
US 6,565,719 · App. 09/604,490
Magnetic disk comprising a first carbon overcoat having a high SP3 content and a second carbon overcoat having a low SP3 content
Inventors:
Bruce Lairson, Ching Tsoi, Wen-Hong Liu, Shigeto Hashimoto, Eric Woo Hock Yong, Tsutomu Yamashita
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Jun 27, 2000
Inventors
Bruce Lairson
Ching Tsoi
Wen-Hong Liu
Shigeto Hashimoto
Eric Woo Hock Yong
Tsutomu Yamashita
Assignee (at issue)
Komag, Inc.
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.