Coated super-abrasive grains, abrasive grains, and wheel
US12428585B2 · kind B2 · utility
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4References
20Claims
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Key dates
| Filing date | Aug 4, 2020 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Feb 2, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/80
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A coated super-abrasive grain comprises: a body composed of cubic boron nitride; and a coating film coating at least a portion of a surface of the body, the body having a dislocation density of 9×1014/m2 or less, the coating film including one or more types of compounds composed of at least one type of element selected from the group consisting of a group 4 element, a group 5 element and a group 6 element of the periodic table, aluminum and silicon, and at least one type of element selected from the group consisting of oxygen, nitrogen, carbon, and boron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.