Number | Name | Date | Kind |
---|---|---|---|
3624026 | Drake | Nov 1971 | A |
3678129 | Fischer | Jul 1972 | A |
3721645 | Zemlin | Mar 1973 | A |
3935143 | Takahashi et al. | Jan 1976 | A |
4087399 | Hamada et al. | May 1978 | A |
4169112 | Elmer et al. | Sep 1979 | A |
4696967 | Shedd et al. | Sep 1987 | A |
4889881 | Takao et al. | Dec 1989 | A |
4920165 | Warrach et al. | Apr 1990 | A |
4983685 | Aoshima et al. | Jan 1991 | A |
5073583 | Broderick | Dec 1991 | A |
5246990 | Aoshima et al. | Sep 1993 | A |
5312856 | Hert et al. | May 1994 | A |
6503630 | Teranishi et al. | Jan 2003 | B1 |
Number | Date | Country |
---|---|---|
0 874 021 | Oct 1998 | EP |
55-108429 | Aug 1980 | JP |
2001-279021 | Oct 2001 | JP |
WO 0027770 | May 2000 | WO |
WO 01-74940 | Oct 2001 | WO |
Entry |
---|
Database WPI; Derwent Publications XP002242180 & JP 56 041216 A (abstract only). |
Database WPI; Derwent Publications XP002242181 & JP 05 194185 A (abstract only). |
Database WPI; Derwent Publications XP002242182 & RO 88 253 A (abstract only). |