Patents
US 9737946 B2: Small-hole electrical discharge machining device
- Granted
- 2017-08-22
- Filed
- 2011-09-01 application 13814874
- Type
- Utility · 11 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
It is an object to provide a small-hole electrical discharge machining device to discharge the machining debris efficiently and to drill a small hole by electrical discharge machining at a high speed.
Source: PVGPATDIS, file of 2026-04-10 (ipg170822.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| ASTEC CO., Ltd. 27 patents | Foreign company or organization | Tokyo, JP | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Eiji Suzuki | Hachioji, JP | 49 | PVGPATDIS, file of 2026-04-10 | |
| Yuta Shimoda | Hachioji, JP | 11 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B23H | Working of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool; such working combined with other forms of working of metal | B23H9/14 | 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 |
|---|---|---|---|---|---|
| 2013-02-07 | Assignment Assignment of assignor's interest | SHIMODA, YUTA signed 2012-12-28 SUZUKI, EIJI signed 2012-12-28 | ASTEC CO., LTD. TOKYO 192-0154 | 29769/693 | 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.