Patents
US 12744056 B2: Piezoelectric motor for hard disk drive actuator arm
- Granted
- 2026-09-22
- Filed
- 2025-02-24 application 19061586
- Type
- Utility · 11 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Described are hard drive devise in which piezoelectric motors are used to drive the motion of actuator arms, rather than the actuator arms being controlled by electromagnetic means such as a conventional voice coil motor. Piezo-based motors suitable for use with devices of the present disclosure may include inchworm motors, brake crawler motors, ultrasonic motors (USMs), and so forth. Such piezo motors may be used to drive rotary actuator motion or linear actuator motion. Moreover, piezo motors can be provided in a compact form factor that allows the actuator arms of a stack of actuator arms to be separately controlled, either as groups or individually.
Source: PTBLXML, file of 2026-09-22 (ipgb20260922.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Seagate Technology LLC 4,936 patents | US company or organization | Fremont, CA | PTBLXML, file of 2026-09-22 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Riyan Alex Mendonsa | Edina, MN | 82 | PTBLXML, file of 2026-09-22 | |
| Brett Robert Herdendorf | Mound, MN | PTBLXML, file of 2026-09-22 | ||
| Xiong Liu | Singapore, SG | 201 | PTBLXML, file of 2026-09-22 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G11B | Information storage based on relative movement between record carrier and transducer | G11B5/4873 | PTBLXML, file of 2026-09-22 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-07-30 | Assignment Assignment of assignor's interest | MENDONSA, RIYAN ALEX signed 2025-02-19 HERDENDORF, BRETT ROBERT signed 2025-02-14 LIU, XIONG signed 2025-02-13 | SEAGATE TECHNOLOGY LLC FREMONT, CA | 75459/76 | PASDL, file of 2026-10-23 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.