Patents
US 12711988 B1: Writing and reading fluorescent optical storage media using Bessel beams
- Granted
- 2026-08-18
- Filed
- 2024-06-25 application 18753230
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Disclosed are fluorescent optical storage systems that include fluorescent optical media having one or more recordable layers, and a writer configured to direct an excitation beam on the fluorescent optical media. The excitation beam, which is capable of inducing a photochemical reaction in a selected layer of the one or more recordable layers, is generated from a Bessel beam. Such systems are capable of writing a sub-wavelength resolutions, which can be read using stimulated emission depletion. Light sheets may be used to selectively identify layers for writing.
Source: PTBLXML, file of 2026-08-18 (ipgb20260818.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 2026-08-18 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Raghu Ambekar Ramachandra Rao | Shakopee, MN | 3 | PTBLXML, file of 2026-08-18 | |
| Joachim Walter Ahner | Livermore, CA | 47 | PTBLXML, file of 2026-08-18 | |
| Aditya Jain | Minneapolis, MN | 28 | PTBLXML, file of 2026-08-18 | |
| Riyan Alex Mendonsa | Edina, MN | 82 | PTBLXML, file of 2026-08-18 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G11B | Information storage based on relative movement between record carrier and transducer | G11B7/24 | PTBLXML, file of 2026-08-18 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-07-02 | Assignment Assignment of assignor's interest | AMBEKAR RAMACHANDRA RAO, RAGHU signed 2024-06-04 AHNER, JOACHIM WALTER signed 2024-06-13 JAIN, ADITYA signed 2024-06-24 MENDONSA, RIYAN ALEX signed 2024-06-03 | SEAGATE TECHNOLOGY LLC FREMONT, CA | 67893/553 | 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.