Patents
US 12356167 B2: Dual-diaphragm MEMS transducers with high effective area
- Granted
- 2025-07-08
- Filed
- 2022-05-26 application 17825804
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A microelectromechanical systems (MEMS) diaphragm assembly comprises a first diaphragm and a second diaphragm, a geometric central region surrounding the geometric center of the diaphragm assembly, and a plurality of pillars connecting the first and second diaphragms, each of the plurality of pillars having a cross-sectional shape having a maximum radial dimension, A, and a maximum circumferential dimension, B, wherein at least a first subset of the plurality of pillars is disposed within the geometric central region and wherein A is greater than B for the at least first sub set.
Source: PVGPATDIS, file of 2026-04-10 (ipg250708.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Knowles Electronics, LLC 414 patents | US company or organization | Itasca, IL | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Shubham Shubham | Schaumburg, IL | 8 | PVGPATDIS, file of 2026-04-10 | |
| Jim Guo | Buffalo Grove, IL | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H04R | Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; electric hearing aids; public address systems | H04R7/10 | PVGPATDIS, file of 2026-04-10 |
| B81B | Microstructural devices or systems, e.g. micromechanical devices | B81B2203/0361 | 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 |
|---|---|---|---|---|---|
| 2022-05-26 | Assignment Assignment of assignor's interest | GUO, JIM signed 2022-05-26 SHUBHAM, SHUBHAM signed 2022-05-26 | KNOWLES ELECTRONICS, LLC ITASCA, IL | 60031/40 | 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.