Data storage device
US9202512B2 · kind B2 · utility
Assignee
Inventors
- Chao Bi
- Kui Cai
- Kheong Sann Chan
- Zhi Yong Ching
- Moulay Rachid Elidrissi
- Guchang Han
- Zhimin He
- Phyu Hla Nu
- Jiang Feng Hu
- Wei-Bin Hua
- Quan Jiang
- Siang Huei Leong
- Wuzhong Lin
- Bo Liu
- Yansheng Ma
- Chun Lian Ong
- Jianzhong Shi
- Cheng Su Soh
- Sufui Sophia Tan
- Li Wang
- Chiew Leong Wong
- Weiya Xi
- Khai Leong Yong
- Shengkai Yu
- Yin Quan Yu
- Zhimin Yuan
- Jing Zhang
- Tiejun Zhou
- Pantelis Alexopoulos
- Budi Santoso
Key dates
| Filing date | Aug 31, 2012 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Aug 31, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to an embodiment of the present invention, a data storage device comprising a motor having a stator is disclosed. The stator may include a substrate having a first surface and a second surface opposite to the first surface; and a n-phase winding arrangement having n phase windings; wherein each phase winding comprises m flat fractional-pitch coils arranged on the first surface of the substrate such that the coils are spaced apart uniformly along a closed loop and connected in series; wherein each coil together with an angular section of the substrate between the coil and an adjacent coil of the same phase winding defines a stator pole-pair; and wherein m is an integer larger than 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.