Patents
US 10574171 B2: Inductive load control device
- Granted
- 2020-02-25
- Filed
- 2019-02-08 application 16271326
- Type
- Utility · 10 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An inductive load control device includes: an electric path configured to connect an external DC power supply and an inductive load drive unit; an opening and closing unit configured to connect or disconnect the electric path; a voltage detection unit configured to detect a voltage difference between ends of the opening and closing unit; and a failure detection unit configured to detect a failure of the opening and closing unit. The opening and closing unit includes: series-connected first and second switching elements; and a diode connected in series with the first switching element and in parallel with the second switching element such that an anode of the diode is disposed in a direction of the DC power supply. The failure detection unit is configured to detect that the second switching element is in a non-conduction failure, based on the voltage difference.
Source: PVGPATDIS, file of 2026-04-10 (ipg200225.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| OMRON AUTOMOTIVE ELECTRONICS CO., LTD. 151 patents | Foreign company or organization | Ebeye, MH | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Toshio Saito | Ebeye, MH | 13 | PVGPATDIS, file of 2026-04-10 | |
| Hiromi Murata | Ebeye, MH | 6 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02P | Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils | H02P29/0241 | PVGPATDIS, file of 2026-04-10 |
| H02H | Emergency protective circuit arrangements | H02H7/122 | PVGPATDIS, file of 2026-04-10 |
| H02M | Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; conversion of dc or ac input power into surge output power; control or regulation thereof | H02M1/08 | 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 |
|---|---|---|---|---|---|
| 2019-03-13 | Assignment Assignment of assignor's interest | MURATA, HIROMI signed 2019-01-17 SAITO, TOSHIO signed 2019-01-17 | OMRON AUTOMOTIVE ELECTRONICS CO., LTD. AICHI | 48588/907 | 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.