Lei I Zhang

US Patent:

59911140, Nov 23, 1999

Filed:

May 14, 1997

Appl. No.:

8/855678

Inventors:

He Huang - Eden Prairie MN
Lei Zhang - Edina MN
Ling Wang - Minneapolis MN

Assignee:

Seagate Technology, Inc. - Scotts Valley CA

International Classification:

G11B 2102

US Classification:

360 75

Abstract:

An actuator assembly in a disc drive includes a track accessing arm, a load beam and a slider. A proximal end of the load beam is mounted to the track accessing arm and a distal end of the load beam carries the slider proximate to a rotatable data storage disc. The load beam transmits a load force to the slider in the direction of the data storage disc. A support beam extends from the track accessing arm and supports a load force reducer between the support arm and the load beam. The load force reducer is operatively coupled between the support beam and the load beam for reducing the load force during take-off and landing of the slider relative to the disc surface.

US Patent:

59108657, Jun 8, 1999

Filed:

Oct 29, 1997

Appl. No.:

8/952561

Inventors:

Ling Wang - Minneapolis MN
Peter Crane - Richfield MN
Lei Zhang - Edina MN

Assignee:

Seagate Technology, Inc. - Scotts Valley CA

International Classification:

G11B 2121

US Classification:

360103

Abstract:

A disc head slider (36) includes a slider body with leading, trailing, inside and outside slider edges (50,52,54,56) and a slider center line (58) extending from the leading slider edge (50) to the trailing slider edge (52). First and second raised side rails (60,62) are formed in the slider body and each include an inside rail edge (108), an outside rail edge (110), a leading rail edge (50) and a trailing rail edge (112). The first and second raised side rails (60,62) form first and second bearing surfaces (70,72), respectively, which terminate prior to the trailing slider edge (52). A raised center rail (64) extends along the slider center line (58) and between the first and second raised rails (60,62). First and second cavities (80a,80b) are positioned between the raised center rail (64) and the first and second raised rails (60,62), respectively. The first and second bearing surfaces (70,72) each include a leading section (100), a waist section (104), a leg section (102) which extends from the waist section (104) to the leading section (100), and a trailing section (106) which extends from the waist section (104) to the trailing rail edge (112).

US Patent:

62696874, Aug 7, 2001

Filed:

May 5, 1998

Appl. No.:

9/072815

Inventors:

Jing Zhang - Woodbury MN
Lei Zhang - San Jose CA
Peter R. Segar - Burnsville MN
Mark J. Schaenzer - Eagan MN

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G01B 528

US Classification:

73105

Abstract:

A disc drive test slider apparatus for measuring contact force with a surface of a rotating disc media includes a slider body positioned proximate the surface of the rotating disc. The slider body includes an air-bearing surface substantially parallel to the surface of the disc and separated from the surface of the disc by a glide height. A cavity is formed in the slider body having a side wall substantially normal to the surface of the disc and a wall substantially parallel to the surface of the disc. A beam flexure is attached to the side wall of the cavity. A plate is attached to the beam flexure in the cavity, the beam flexure having a spring resiliency to permit movement of the plate in the cavity substantially normal to the surface of the disc. A contact rod is attached to the plate, and extends through the cavity and a via in the slider body. The contact rod has a distal tip projecting from the air-bearing surface.