| 1955 | Movement to unite mountaineering federation started |
| 1960 | Japan Mountaineering Association inaugurated as the united national federation of mountaineering organizations. First expedition to India Himalaya dispatched. |
| 1967 | Joined UIAA |
| PAST ACHIEVEMENTS |
| 1970 | Makalu South-East ridge; First ascent (JMA Aichi) |
| 1973 | Everest South Face; Post monsoon First Ascent (JMA Tokyo) |
| 1974 | Manaslu Japan Women Expedition; Women First ascent (JMA Tokyo) |
| 1975 | Everst Japan Women Expedition; Women First Ascent (JMA Tokyo) |
| 1976 | Manaslu Japan Iran joint Expedition (JMA) |
| 1977 | K2 South-East Ridge; 2nd Ascent (JMA) |
| 1978 | Dhaulagiri I South Pillar; First Ascent (JMA Tokyo) |
| 1979 | Dhaulagiri II-V First Traverse (JMA Tokyo) |
| 1980 | Kangchenjunga North face without oxygen (JMA Tokyo) Chomo Langma North face; First Ascent (JMA Tokyo) |
| 1981 | K2 West Ridge; First Ascent (JMA Tokyo) |
| 1982 | Chogori(K2) North Ridge; First Ascent(JMA) |
| 1983 | Everest without Oxygen (JMA Tokyo) |
| 1984 | Kangchenjunga: traverse South Peak to main peak (JMA Tokyo) |
| 1985 | Manaslu; Winter Ascent Alpine style (JMA Tokyo) |
| 1987 | Annapurna? South Face; Winter-First Ascent (JMA Gunma) |
| 1988 | Everest Japan China Nepal Joint Expedition (JMA Tokyo) |
| 1992 | Chogori(K2) North West face; First Ascent (JMA Kanagawa) |
| 1993 | Everest South-West Face; Winter First Ascent (JMA Gunma) |
| 1994 | Makalu; East Ridge First Ascent (JMA Tokyo) |
| 1995 | Chomo Langma North East ridge; First Ascent (JMA Tokyo) |
| 1997 | K2 West face First Ascent (JMA Aichi) |
| 2006 | Lhotse South Face Winter First Ascent (JMA Aichi) |
