Patents
US 12181423 B1: Secondary image removal using high resolution x-ray transmission sources
- Granted
- 2024-12-31
- Filed
- 2024-01-08 application 18406851
- Type
- Utility · 25 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An apparatus includes a transmission x-ray source having a window including a target layer of at least one x-ray generating material and an internal aperture configured to allow a first portion of an electron beam to bombard the target layer and to block a second portion of the electron beam from bombarding the target. The first portion of the electron beam has a full-width-at-half-maximum width at the target less than or equal to 1 micron. The window is spaced from the internal aperture by a first distance D1. The apparatus further includes an x-ray detector system having a scintillator, an optical assembly, at least one image sensor configured to receive and respond to visible light by generating electrical signals, and a motorized stage configured to controllably adjust a position of the scintillator such that the scintillator is spaced from the window by a second distance D2, wherein D22/(D1+D2)2 is less than 0.2.
Source: PVGPATDIS, file of 2026-04-10 (ipg241231.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Sigray, Inc. 52 patents | US company or organization | Concord, CA | SIGRAY, INC. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Sylvia Jia Yun Lewis | San Francisco, CA | 44 | PVGPATDIS, file of 2026-04-10 | |
| Sheraz Gul | San Ramon, CA | 7 | PVGPATDIS, file of 2026-04-10 | |
| Wenbing Yun | Walnut Creek, CA | 71 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N23/04 | 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 |
|---|---|---|---|---|---|
| 2024-01-25 | Assignment Assignment of assignor's interest | LEWIS, SYLVIA JIA YUN signed 2024-01-16 GUL, SHERAZ signed 2024-01-16 YUN, WENBING signed 2024-01-18 | SIGRAY, INC. CONCORD, CA | 66246/434 | 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.