Number | Name | Date | Kind |
---|---|---|---|
3501099 | Benson | Mar 1970 | |
3589345 | Benson | Jun 1971 | |
4460842 | Waanders et al. | Jul 1984 | |
4471256 | Igashira et al. | Sep 1984 | |
4499566 | Abbott | Feb 1985 | |
4523121 | Takahashi et al. | Jun 1985 | |
4695034 | Shimizu et al. | Sep 1987 | |
4752712 | Tomita etal. | Jun 1988 | |
4885498 | Wakita | Dec 1989 |
Number | Date | Country |
---|---|---|
7532009 | Jun 1976 | FRX |
0211974 | Sep 1987 | JPX |
0234184 | Apr 1988 | JPX |
6909652 | Jun 1969 | NLX |
Entry |
---|
Piezoelectric Materials (Physics International Company), date unknown. |