This application is a continuation-in-part of application Ser. No. 07/188,341, filed May 4, 1988.
Number | Date | Country |
---|---|---|
183317 | Nov 1987 | JPX |
300538 | Dec 1988 | JPX |
Entry |
---|
Goto et al., Japanese Journal of Applied Physics, vol. 26, No. 9, Sep. 1987, pp. 1527-1528. |
Gota et al., Japanese Journal of Applied Physics, vol. 26, No. 2, Dec. 1987, pp. 1970-1972. |
Ishii et al., Japanese Journal of Applied Physics, vol. 26, No. 12, Dec. 1987, pp. 1959-1960. |
Number | Date | Country | |
---|---|---|---|
Parent | 188341 | May 1988 |