Toho Engineering Co., Ltd.
Records under this name other than patents Toho Engineering Co., Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Toho Engineering Co., Ltd.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,163,645 | Method for Processing Wide-Bandgap Semiconductor Substrate and Apparatus Therefor Formerly held In force · High confidence | In force | High confidence | |
| US 10,199,242 | Planarizing Processing Method and Planarizing Processing Device Formerly held In force · High confidence | In force | High confidence | |
| US 10,665,480 | Planarizing Processing Method and Planarizing Processing Device Formerly held In force · Medium confidence | In force | Medium confidence | |
| US 10,770,301 | Planarization processing device Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 9,082,715 | Substrate polishing apparatus Formerly held Lapsed on the fee record Ended Jul 14, 2023 · From the USPTO record | Lapsed on the fee record | Ended Jul 14, 2023 | From the USPTO record |
| US 8,992,288 | Polishing pad auxiliary plate and polishing device equipped with polishing pad auxiliary plate Lapsed on the fee record Ended Mar 31, 2023 · From the USPTO record | Lapsed on the fee record | Ended Mar 31, 2023 | From the USPTO record |
| US 8,702,474 | Method of regenerating a polishing pad using a polishing pad sub plate Lapsed on the fee record Ended Apr 22, 2018 · From the USPTO record | Lapsed on the fee record | Ended Apr 22, 2018 | From the USPTO record |
| US 8,702,477 | Polishing pad sub plate Lapsed on the fee record Ended Apr 22, 2018 · From the USPTO record | Lapsed on the fee record | Ended Apr 22, 2018 | From the USPTO record |
| US 7,516,536 | Method of producing polishing pad Lapsed on the fee record Ended Apr 14, 2017 · From the USPTO record | Lapsed on the fee record | Ended Apr 14, 2017 | From the USPTO record |
| US 6,869,343 | Turning tool for grooving polishing pad, apparatus and method of producing polishing pad using the tool, and polishing pad produced by using the tool Lapsed on the fee record Ended Mar 22, 2017 · From the USPTO record | Lapsed on the fee record | Ended Mar 22, 2017 | From the USPTO record |