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6-104486 | Apr 1994 | JPX |
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4035613 | Sagawa et al. | Jul 1977 | |
5264681 | Nozaki et al. | Nov 1993 | |
5630969 | Shimada | May 1997 |
Number | Date | Country |
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42 04 288 | Aug 1992 | DEX |
44 01 793 | Aug 1994 | DEX |
63-146381 | Jun 1988 | JPX |
6-235716 | Aug 1994 | JPX |
Entry |
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Doerre et al., "Alumina, Processing, Properties, and Applications", Springer-Verlag, (1984). |