Number | Date | Country | Kind |
---|---|---|---|
63-295652 | Nov 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4257076 | Shimizu et al. | Mar 1981 | |
4660114 | Yamakawa et al. | Apr 1987 | |
4796127 | Wada et al. | Jan 1989 | |
4833556 | Kosarko et al. | May 1989 | |
4851942 | Kumasaka et al. | Jul 1989 |
Number | Date | Country |
---|---|---|
1133274 | May 1989 | JPX |
Entry |
---|
IBM Technical Disclosure Bulletin vol. 20, No. 8 Jan. 1978. |