| [Important Dates] |
| ◆ | 15:00 January 19, 2020 Application for Paper Presentation |
| ◆ | Advance Registration(Speaker) |
| ◆ | 15:00 March 3, 2020 Submission of Manuscript |
| Term : 10:00 February 18, 2020 - 15:00 March 3, 2020 |
| ◆ | Aplil 14, 2020 with payment Advance Registration(Not speaker) |
| Term : March 12, 2020 - Aplil 14, 2020 |
| ◆ | May 12, 2020 Preprints were published |
| ◆ | May 27 -29, 2020 69th SPSJ Annual Meeting |
| Fukuoka Convention Center |
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| 69th SPSJ Annual Meeting |