Number | Date | Country | Kind |
---|---|---|---|
4-114756 | May 1992 | JPX | |
4-175549 | Jul 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3660199 | Riccitiello et al. | May 1972 | |
4579612 | Held | Apr 1986 | |
4956053 | Polan et al. | Sep 1990 | |
5368674 | Ishii et al. | Nov 1994 |
Number | Date | Country |
---|---|---|
63-158216 | Jul 1988 | JPX |
63-158217 | Jul 1988 | JPX |
1148519 | Jun 1989 | JPX |
1148520 | Jun 1989 | JPX |
1225545 | Sep 1989 | JPX |
3183188 | Aug 1991 | JPX |
5-92423 | Apr 1993 | JPX |
Entry |
---|
Patent Abstracts of Japan, vol. 015, No. 008 (M-1067)9 Jan., 1991 & JP-A-02 258 337 (Sumitomo Bakelite Co., Ltd.) 19 Oct. 1990 *abstract*. |
Patent Abstracts of Japan, vol. 015, No. 362 (M-1157)12 Sep. 1991 & JP-A-03 142 239 (Hitachi Chemical Co., Ltd.) 18 Jun. 1991 *abstract*. |
Database WPI Week 9139, Derwent Publications Ltd., London, GB; An 91-286194 & JP-A-63 132 044 Shin Kolbe Elec Mach) 4 Jun. 1988 *abstract*. |