Record of Past Annual Meetings

Number	Year	Date	Place	No. of participants	No. of presentation
64	2023	10th - 17th, March	Sendai⁴	1,559	672
63	2022	22nd - 24th, March	Tsukuba³	1,321	590
62	2021	14th - 16th, March	Matsue³	1,535	606
61	2020	19th - 21st, March	Osaka²	1,278	744
60	2019	13th - 15th, March	Nagoya	1,774	880
59	2018	28th - 30th, March	Sappro	1,342	797
58	2017	16th - 18th, March	Kagoshima	1,473	820
57	2016	18th - 20th, March	Morioka	1,662	1,032
56	2015	16th - 18th, March	Tokyo	2,025	935
55	2014	18th - 20th, March	Toyama	1,819	982
54	2013	21st - 23rd, March	Okayama	1,674	962
53	2012	16th - 18th, March	Kyoto	1,936	1,006
52	2011	20th - 22nd, March	Sendai¹	1,511	979
51	2010	18th - 21st, March	Kumamoto	1,779	913
50	2009	21st - 24th, March	Nagoya	2,048	1,035
49	2008	20th - 22nd, March	Sapporo	1,752	1,019
48	2007	28th - 30th, March	Matsuyama	1,738	980
47	2006	19th - 21st, March	Tsukuba	1,820	921
46	2005	24th - 26th, March	Niigata	1,534	903
45	2004	27th - 29th, March	Tokyo	1,703	812
44	2003	27th - 29th, March	Nara	1,553	746
43	2002	28th - 30th, March	Okayama	1,481	765
42	2001	23rd - 26th, March	Hukuoka	1,351	740
41	2000	27th - 29th, March	Nagoya	1,424	709
40	1999	28th - 30th, March	Sendai	1,235	636
39	1998	3rd - 5th, May	Sapporo	960	581
38	1997	27th - 29th, March	Kyoto	1,186	542
37	1996	27th - 29th, March	Kagoshima	1,081	579
36	1995	28th - 30th, March	Matsue	1,000	564
35	1994	28th - 30th, March	Tsukuba	1,034	515
34	1993	29th - 31st, March	Kanazawa	864	413
33	1992	29th - 31st, March	Kumamoto	800	423
32	1991	28th - 30th, March	Okayama	850	386
31	1990	28th - 30th, March	Tokyo	850	361
30	1989	5th - 7th, April	Nagoya		320
29	1988	28th - 30th, March	Osaka	700	316
28	1987	28th - 30th, March	Urawa	700	290
27	1986	28th - 30th, March	Sendai	586	265
26	1985	28th - 30th, March	Miyazaki	416	254
25	1984	3rd - 5th, April	Kanazawa	441	241
24	1983	2nd - 4th, April	Matsuyama	450	270
23	1982	8th - 10th, May	Matsumoto	440	230
22	1981	7th - 9th, May	Sapporo		230
21	1980	6th - 8th, April	Tokyo	500	195
20	1979	5th - 7th, April	Nagoya		185
19	1978	4th - 6th, April	Hiroshima	390	191
18	1977	4th - 6th, April	Osaka	373	166
17	1976	5th - 7th, April	Hukuoka	300	143
16	1975	3rd - 5th, April	Wakou	386	99
15	1974	6th - 8th, April	Sendai	270	130
14	1973	30th, March - 1st, April	Tokyo	350	117
13	1972	6th - 8th, April	Kyoto	340	108
12	1971	2nd - 5th, April	Okayama	214	128
11	1970	27th - 29th, March	Koube
10	1969	5th - 7th, April	Kanazawa	166	44
9	1968	20th - 22nd, October	Nagoya	193	40
8	1967	5th - 7th, April	Tokyo		36
7	1966	11th - 13th, August	Sendai
6	1965	4th - 7th, April	Tokyo		34
5	1964	5th - 6th, April	Tokyo	500
4	1963	9th - 10th, October	Kyoto	300
3	1962	7th - 8th, April	Tokyo
2	1961	5th - 6th, April	Tokyo	200
1	1960	7th, April	Tokyo	130

¹2011：Publication of proceedings only due to Great East Japan Earthquake

²2020：Publication of proceedings only due to outbreak of COVID-19

³2021, 2022：Held online to prevent the spread of COVID-19

⁴2023：Hybrid format of onsite and online