11. YK14-12 R/V Yokosuka HOV Shinkai 6500
28 Jun. 2014 Yokosuka (Japan) - 4 Jul. 2014 Yokosuka (Japan) 7 days
Chief scientist: Hidetaka Nomaki
10. YK13-12 R/V Yokosuka HOV Shinkai 6500
7 Nov. 2013 Auckland (New Zealand) - 30 Nov. 2013 Yokosuka (Japan) 24 days
Chief scientist: Hidetaka Nomaki
9. YK13-05 R/V Yokosuka HOV Shinkai 6500
17 Jun. 2013 San Juan (Puerto Rico) - 3 Jul. 2013 Critóbal (Panama) 17 days
Chief scientist: Ken Takai
8. NT13-09 R/V Natsushima ROV Hyper-Dolphin
21 Apr. 2013 Yokosuka (Japan) - 29 Apr. 2013 Yokosuka (Japan) 9 days
Chief scientist: Motohiro Shimanaga
7. NT12-15 R/V Natsushima ROV Hyper-Dolphin
21 Jun. 2012 Yokosuka (Japan) - 24 Jun. 2012 Yokosuka (Japan) 4 days
Chief scientist: Yoshihiro Fujiwara
6. NT12-09 R/V Natsushima ROV Hyper-Dolphin
11 Apr. 2012 Kagoshima (Japan) - 19 Apr. 2013 Yokosuka (Japan) 9 days
Chief scientist: Norio Miyamoto
○Related publications：Miyamoto et al., 2013; Miyamoto et al., 2013; Miyamoto et al., 2014
5. NT12-07 R/V Natsushima ROV Hyper-Dolphin
24 May 2012 Naha (Japan) - 29 May 2012 Kagoshima (Japan) 6 days
Chief scientist: Blair Thornton
○Related publication：Miyamoto et al., 2013
4. KR12-01 R/V Kairei ROV Kaiko 7000-II
7 Jun. 2012 Harumi (Japan) - 21 Jun. 2012 Naha (Japan) 15 days
Chief scientist: Yoshihiro Fujiwara
3. YK11-E06 Leg2 R/V R/V Yokosuka HOV Shinkai 6500
30 Jul. 2011 Yokosuka (Japan) - 14 Aug. 2011 Hachinohe (Japan) 16 days
Chief scientist: Katsunori Fujikura
2. YK11-E04 Leg1 R/V Yokosuka
2 Jun. 2011 Yokosuka (Japan) - 12 Jun. 2011 Yokosuka (Japan) 11 days
Chief scientist: Katsunori Fujikura
1. KT07-31 R/V Tansei-Maru
24 Nov. 2007 Odaiba (Japan) - 1 Dec. 2007 Odaiba (Japan) 8 days
Chief scientist: Toshiaki Kuramochi
Total: 126 days