Biomedical article made of alumina ceramics
US6241773A · kind A · utility
6Cited by
8References
7Claims
0Family size
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Inventors
Key dates
| Filing date | Jun 28, 1999 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Jun 28, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L27/105
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biomedical article made of alumina ceramics including an aluminum oxide having a purity of not less than 99.95% and unavoidable impurities as remainder. The alumina ceramics contains no sintering agent. The alumina ceramics has no irregularities in the crystal grain size, and has a strength necessary for biomedical article, and have a crystal grain size of less than 1.0 .mu.m to assure excellent slidability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.