Annual Conference
Past Conferences
| Name | Day | Month | Year | Venue | Number of participants |
|---|---|---|---|---|---|
| 24th | 21-22 | September | 2019 | Chiba | 3,218 |
| 23rd | 23‐24 | September | 2018 | Mito | 2,423 |
| 22nd | 16‐17 | September | 2017 | Fukuoka | 2,769 |
| 21st | 18‐19 | September | 2016 | Kofu | 2,522 |
| 20th | 21‐22 | September | 2015 | Takamatsu | 2,773 |
| 19th | 20‐21 | September | 2014 | Gifu | 3,036 |
| 18th | 22‐23 | September | 2013 | Yokohama | 3,874 |
| 17th | 29‐30 | September | 2012 | Kyoto | 3,545 |
| 16th | 24‐25 | September | 2011 | Tokyo | 3,340 |
| 15th | 10‐11 | October | 2010 | Tokyo | 3,031 |
| 14th | 19‐20 | September | 2009 | Sapporo | 1,814 |
| 13th | 6‐7 | September | 2008 | Kanazawa | 2,404 |
| 12th | 15‐16 | September | 2007 | Chiba | 2,487 |
| 11th | 16‐17 | September | 2006 | Kyoto | 2,366 |
| 10th | 17‐18 | September | 2005 | Fukuoka | 1,979 |
| 9th | 18‐19 | September | 2004 | Matsuyama | 1,965 |
| 8th | 27‐28 | September | 2003 | Niigata | 1,638 |
| 7th | 5‐6 | October | 2002 | Nagoya | 1,804 |
| 6th | 15-16 | September | 2001 | Okayama | 1,039 |
| 5th | 23-24 | September | 2000 | Yokohama | 1,500 or more |
| 4th | 24-25 | September | 1999 | Takizawa | 893 |
| 3rd | 26-27 | September | 1998 | Tokyo | 1,044 |
| 2nd | 27-28 | September | 1997 | Yokohama | 904 |
| 1st | 13 | October | 1996 | Tokyo | 250 |
