Patents
US 7573264 B2: Atomic magnetic gradiometer for room temperature high sensitivity magnetic field detection
- Granted
- 2009-08-11
- Filed
- 2006-11-27 application 11563537
- Type
- Utility · 32 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A laser-based atomic magnetometer (LBAM) apparatus measures magnetic fields, comprising: a plurality of polarization detector cells to detect magnetic fields; a laser source optically coupled to the polarization detector cells; and a signal detector that measures the laser source after being coupled to the polarization detector cells, which may be alkali cells. A single polarization cell may be used for nuclear magnetic resonance (NMR) by prepolarizing the nuclear spins of an analyte, encoding spectroscopic and/or spatial information, and detecting NMR signals from the analyte with a laser-based atomic magnetometer to form NMR spectra and/or magnetic resonance images (MRI). There is no need of a magnetic field or cryogenics in the detection step, as it is detected through the LBAM.
Source: PVGPATDIS, file of 2026-04-10 (ipg090811.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| THE REGENTS OF THE UNIVERSITY OF CALIFORNIA 8,781 patents | US company or organization | Oakland, CA | REGENTS OF THE UNIVERSITY OF CALIFORNIA State business registration FUZZY medium confidence: same name (legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Shoujun Xu | Berkeley, CA | 11 | PVGPATDIS, file of 2026-04-10 | |
| Thomas Lowery | Belmont, MA | 2 | PVGPATDIS, file of 2026-04-10 | |
| Dmitry Budker | Corona, CA | 10 | PVGPATDIS, file of 2026-04-10 | |
| Valeriy V. Yashchuk | Richmond, CA | 3 | PVGPATDIS, file of 2026-04-10 | |
| David Wemmer | Berkeley, CA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Alexander Pines | Berkeley, CA | 12 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01R | Measuring electric variables; measuring magnetic variables | G01R33/26 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2007-02-20 | Assignment Assignment of assignor's interest | YASHCHUK, VALERIY V. signed 2007-01-26 BUDKER, DMITRY signed 2007-01-28 WEMMER, DAVID E. signed 2007-01-29 PINES, ALEXANDER signed 2007-02-01 LOWERY, THOMAS J. signed 2007-02-05 XU, SHOUJUN signed 2007-02-14 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA OAKLAND, CA | 18906/932 | ECORSEXC, file of 2026-09-25 |
| 2006-12-08 | Government interest Confirmatory license | REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE signed 2006-11-28 | UNITED STATES DEPARTMENT OF ENERGY WASHINGTON, DC | 18615/233 | ECORSEXC, file of 2026-09-25 |
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.