Number | Date | Country | Kind |
---|---|---|---|
7-221948 | Aug 1995 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
5530464 | Hiwada | Jun 1996 | |
5619234 | Nagato et al. | Apr 1997 |
Number | Date | Country |
---|---|---|
2160557 | Jun 1990 | EPX |
703081A2 | Mar 1996 | EPX |
WO9311866 | Jun 1993 | WOX |
Entry |
---|
Patent Abstracts of Japan, vol. 18, No. 611, p. 120, JP 06-A-234219, (Okaya Electric Ind Co. Ltd) Aug. 23, 1994. |