One of the first domestic built mine sweeper post Pacific War. To compare the design, Atada was built with round hull and stack while Yashiro was built with V-shaped hull and side vent.
| Standard Displacement | 240t |
| Length | 37.50m |
| Beam | 6.80m |
| Draught | 2.10m |
| Machine Type | 2 Ikegai-Benz MB820B Diesel (MSC 601)
2 Mitsubishi YV10ZC15/20I Diesel (MSC 602) |
| Output | 1200PS |
| Number of shaft | 2 |
| Speed | 13.5kt |
| Crew | 33 |
| Original | Radar Refit (1960) | |
| Guns | 1 Mk 10 20mm(I) | as left |
| AS Weapons | 1 Mine sweeping set | as left |
| Electronic Equipment | 1 SPS-10 SS Radar
1 UQS-1D |
1 OPS-4 SS Radar
1 UQS-1D |
| Name | Laid Down | Launched | Completed | Deleted |
| MSC 601 Atada | 1955/06/20 | 1956/03/12 | 1956/04/30 | 1972/03/31 (YAS 56)
1980/03/17 |
| MSC 602 Itsuki | 1955/06/22 | 1956/03/12 | 1956/06/30 | 1972/03/31 (YAS 57)
1978/03/20 |