| Number | Date | Country | Kind |
|---|---|---|---|
| 2000-022078 | Aug 2000 | JP |
| Number | Name | Date | Kind |
|---|---|---|---|
| 4577552 | Yamamoto | Mar 1986 | A |
| 4800810 | Masumoto | Jan 1989 | A |
| 4843957 | Satake | Jul 1989 | A |
| 5076156 | Ohike et al. | Dec 1991 | A |
| 5259303 | Yamamoto et al. | Nov 1993 | A |
| Entry |
|---|
| Catalog, TWP50A, Satake Corporation, Jun. 6, 2000. |
| Catalog, Satake Corporaiton, Jun. 6, 2000. |