Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate
2006-07-25
2010-06-01
Cao, Allen T (Department: 2627)
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
Reexamination Certificate
active
07729082
ABSTRACT:
The present invention relates to HDD screws, and more specifically to lubricating the HDD screws. HDD screws may be coated in a layer of a PFPE based lubricant to reduce friction while fastening the screw into a HDD. In addition to providing superior lubricity and reduced friction during fastening and longer shelf life, PFPE lubricated screws provide narrower clamping load distribution and lower particle generation compared to currently used screw lubricants. Furthermore, because PFPE lubricants are also used to lubricate magnetic disk surfaces, the HDD screws may provide a reservoir for replenishing depleting lubricants on the magnetic disk drive surface.
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Ang Kor Seng
Liu Shaoyong
Marimuthu Sivalingam
Pan Jing Fang
Yao Yi Zhao
Cao Allen T
Hitachi Global Storage Technologies - Netherlands B.V.
Patterson & Sheridan L.L.P.
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