| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | NKK Corp (Tokyo) |
| PATENT CLAIMS |
Mfg method - Mixing B contg compd & Al - Heat. powder in nitriding atm to produce BN & AlN Wherein BN contg material comprises BN (47.2-55.1%); AlN + AlON (37.8-42.4%) & C (2.5-6.2%) |
| PATENT PHOTOCOPY | Available on request |
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