Granted Patent
Utility
US 6,572,934 · App. 09/774,887
Method for manufacturing a magnetic recording disk
Inventors:
Naoki Watanabe, Nobuyoshi Watanabe, Kazunori Tani, Shinji Furukawa, Hiromi Sasaki, Osamu Watabe
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Feb 1, 2001
Inventors
Naoki Watanabe
Nobuyoshi Watanabe
Kazunori Tani
Shinji Furukawa
Hiromi Sasaki
Osamu Watabe
Assignees (at issue)
Anelva Corporation
Nihon Micro Coating Co., Ltd.
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.