Number | Name | Date | Kind |
---|---|---|---|
3396286 | Anderson et al. | Aug 1968 | |
4166967 | Benes et al. | Sep 1979 | |
4240003 | Larson, III | Dec 1980 | |
4277711 | Hanafy | Jul 1981 | |
4381470 | Leach et al. | Apr 1983 | |
4404489 | Larson et al. | Sep 1983 | |
4437033 | Diepers | Mar 1984 | |
4446395 | Hadjicostis | May 1984 | |
4503861 | Entrekin | Mar 1985 | |
4564980 | Diepers | Jan 1986 | |
4763148 | Tsukimoto et al. | Aug 1988 | |
5099459 | Smith | Mar 1992 | |
5329496 | Smith | Jul 1994 | |
5381385 | Greenstein | Jan 1995 | |
5457352 | Mullen et al. | Oct 1995 | |
5488957 | Frey et al. | Feb 1996 |
Entry |
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"Multiple Layer Transducers for Broadband Applications" by J. Hossack et al. Ultrasonics Symposium, IEEE, 1991. |
Goldberg et al., "Multi-Layer PZT Transducer Arrays for Improved Sensitivity", IEEE Ultrasonics Symposium, (1992), pp. 551-554. |