Proterial, Ltd.
Records under this name other than the patents Proterial, Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 470 patents it holds.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,655,325 | Rare Earth Magnet and Method for Producing Same now held by Hitachi, Ltd. In force · High confidence | In force | High confidence | |
| US 7,740,715 | R-T-B Based Sintered Magnet now held by Hitachi, Ltd. In force · Low confidence | In force | Low confidence | |
| US 7,789,933 | R-T-B Based Sintered Magnet now held by Hitachi, Ltd. In force · Low confidence | In force | Low confidence | |
| US 8,092,619 | R-T-Cu-Mn-B Type Sintered Magnet now held by Hitachi, Ltd. In force · High confidence | In force | High confidence | |
| US 8,317,941 | R-T-B-Type Sintered Magnet and Method for Production Thereof now held by Hitachi, Ltd. In force · High confidence | In force | High confidence | |
| US 7,785,460 | Method for Producing Rare Earth Metal-Based Permanent Magnet Having Copper Plating Film on the Surface Thereof now held by Hitachi, Ltd. In force · Medium confidence | In force | Medium confidence | |
| US 7,972,491 | Method for Imparting Hydrogen Resistance to Articles now held by Hitachi, Ltd. In force · High confidence | In force | High confidence | |
| US 8,323,806 | Rare Earth Magnet and Method for Producing Same now held by Hitachi, Ltd. In force · High confidence | In force | High confidence | |
| US 8,182,618 | Rare Earth Sintered Magnet and Method for Producing Same now held by Hitachi, Ltd. In force · High confidence | In force | High confidence | |
| US 8,435,320 | Ceramic Honeycomb Filter now held by Mirai Casting America Inc. In force · High confidence | In force | High confidence |