Number | Date | Country | Kind |
---|---|---|---|
4-136781 | May 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3873867 | Girvin | Mar 1975 | |
4367404 | Kaye | Jan 1983 | |
5043628 | Boutot et al. | Aug 1991 | |
5061875 | Tomasetti et al. | Oct 1991 |
Number | Date | Country |
---|---|---|
1443279 | May 1966 | FRX |
Entry |
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Patent Abstracts of Japan, vol. 15, No. 70 (E-1035) 19 Feb. 1991 & JP-A-02 291 655 (Hamamatsu Photonics K.K.) 3 Dec. 1990 *abstract*. |