Patents
US 12669559 B2: MR sensors having layer orientation control using SOT current
- Granted
- 2026-06-30
- Filed
- 2023-09-20 application 18470538
- Type
- Utility · 33 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Methods and apparatus for an MR device having a ferromagnetic material, a heavy metal layer configured to flow a charge current, and an insulating layer between the ferromagnetic material and the heavy metal layer. The insulating layer is configured to electrically insulate and to magnetically couple the heavy metal layer and the ferromagnetic layer for generating a field like (FL) field in the ferromagnetic material in response to the charge current. In some embodiments, the MR device comprises a TMR device having a free layer or a reference layer oriented by the charge current. In other embodiments, the MR device comprises a GMR device.
Source: PTBLXML, file of 2026-06-30 (ipgb20260630.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Allegro MicroSystems, LLC 910 patents | US company or organization | Manchester, NH | ALLEGRO MICROSYSTEMS, INC. SEC filer FUZZY low confidence: same name (legal endings aside), one of each nationally | PTBLXML, file of 2026-06-30 |
| Commissariat à l'énergir atomique et aux énergies alternatives | Foreign government | Paris, FR | PTBLXML, file of 2026-06-30 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Aurélie Solignac | Massy, FR | PTBLXML, file of 2026-06-30 | ||
| Myriam Pannetier-Lecoeur | Bures sur Yvette, FR | 19 | PTBLXML, file of 2026-06-30 | |
| Claude Fermon | Gif-sur-Yvette, FR | 27 | PTBLXML, file of 2026-06-30 | |
| Paolo Campiglio | Montreuil, FR | 39 | PTBLXML, file of 2026-06-30 | |
| Jean-Michel Daga | Bourg-la-Reine, FR | 20 | PTBLXML, file of 2026-06-30 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01R | Measuring electric variables; measuring magnetic variables | G01R33/09 | PTBLXML, file of 2026-06-30 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2023-09-20 | Assignment Assignment of assignor's interest | SOLIGNAC, AURÉLIE signed 2023-09-01 PANNETIER-LECOEUR, MYRIAM signed 2023-09-04 FERMON, CLAUDE signed 2023-09-04 | COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES PARIS | 64966/708 | PASDL, file of 2026-10-15 |
| 2023-09-20 | Assignment Assignment of assignor's interest | CAMPIGLIO, PAOLO signed 2023-09-04 DAGA, JEAN-MICHEL signed 2023-09-10 ALLEGRO MICROSYSTEMS FRANCE SAS signed 2023-08-31 ALLEGRO MICROSYSTEMS EUROPE LIMITED signed 2023-08-31 CRIVASENSE TECHNOLOGIES SAS signed 2023-08-31 | ALLEGRO MICROSYSTEMS, LLC MANCHESTER, NH | 64966/694 | PASDL, file of 2026-10-15 |
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.