IP Library › Granted Patent US 10,910,004
Granted Patent B2
US 10,910,004 · App. 15/691,627 · Granted Feb 2, 2021

Disk drive suspension baseplate having enhanced torque retention and method of manufacture

Inventors: James J. Sherry (Maple Grove, MN); Shawn P. Bopp (Savage, MN); Craig A. Leabch (Saint Cloud, MN); Jeffery D. Weckwerth (Dassel, MN); Stephen J. Hansen (Dassel, MN); Douglas P. Riemer (Waconia, MN)
Assignee: MMI TECHNOLOGIES PTE LTD.
G11B5/4833C23C22/50C23F1/16C23F1/28C23G1/085
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Quick Facts
Patent No.
US 10,910,004
App. No.
15/691,627
Granted
Feb 2, 2021
Kind
B2
Abstract

Disk drive suspension baseplates made of a base metal and methods for manufacturing disk drive suspension baseplates having boss outer surfaces characterized by roughness parameters R a ≥0.15 μm.

Claims (15)

1. A disk drive suspension baseplate made from a base metal, comprising: a boss made of the base metal extending from the baseplate, the boss outer surface having roughness parameters R a ≥0.15 μm.

2. The disk drive suspension baseplate of claim 1 wherein the boss outer surface has roughness parameters R a ≥0.20 μm.

3. The disk drive suspension baseplate of claim 1 wherein the boss outer surface has roughness R a ≥0.25 μm.

4. The disk drive suspension baseplate of claim 3 wherein the boss outer surface has a roughness parameter of 0.40 μm.

5. The disk drive suspension baseplate of claim 1 wherein the boss outer surface has roughness parameters R a ≥0.70 μm.

6. A disk drive suspension baseplate made from a base metal comprising: a boss made of the base metal extending from the baseplate, the boss outer surface having roughness parameters R q ≥0.2 μm.

7. The disk drive suspension baseplate of claim 6 wherein the boss outer surface has roughness parameters R q ≥0.3 μm.

8. The disk drive suspension baseplate of claim 6 wherein the boss outer surface has roughness parameters R q ≥0.5 μm.

9. The disk drive suspension baseplate of claim 8 wherein the boss outer surface has a roughness parameter of 0.70 μm.

10. The disk drive suspension baseplate of claim 6 wherein the boss outer surface has roughness parameters R q ≥0.7 μm.

11. A disk drive suspension baseplate made from a base metal comprising: a boss outer made of the base metal extending from the baseplate, the boss outer surface having roughness parameters H≥0.5 μm.

12. The disk drive suspension baseplate of claim 11 wherein the boss outer surface has roughness parameters H≥0.6 μm.

13. The disk drive suspension baseplate of claim 11 wherein the boss outer surface has roughness parameters H≥0.8 μm.

14. The disk drive suspension baseplate of claim 13 wherein the boss outer surface has a roughness parameter of 1.4 μm.

15. The disk drive suspension baseplate of claim 11 wherein the boss outer surface has roughness parameters H≥2.0 μm.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2021
From: MMI TECHNOLOGIES PTE LTD.
To: INTRI-PLEX (THAILAND) LTD.
Reel/Frame 056993/0635 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 17, 2019
From: HUTCHINSON TECHNOLOGY INCORPORATED
To: MMI TECHNOLOGIES PTE LTD.
Reel/Frame 048053/0004 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 8, 2018
From: SHERRY, JAMES J.; BOPP, SHAWN P.; LEABCH, CRAIG A.; WECKWERTH, JEFFERY D.; HANSEN, STEPHEN J.; RIEMER, DOUGLAS P.
To: HUTCHINSON TECHNOLOGY INCORPORATED
Reel/Frame 044564/0165 →
Continuity (2)
Provisional Application 62383053 · Sep 2, 2016
Related Publication 20180068684A1 · Mar 8, 2018