Preceded by:
NoneSucceeded by:
None| Ship | Code | Builder | Laid | Launch | Comm | Decomm | Fate | ||
| Kaidai 6A: | |||||||||
 |
I-68 / I-168 † | Kure K K | 18/06/1931 | 26/06/1933 | 31/07/1934 | 27/07/1943 | † | Loss by submarine | |
|
I-69 / I-169 † | Mitsubishi | 22/12/1932 | 15/02/1934 | 28/09/1935 | 04/04/1944 | † | Loss by aircraft | |
|
I-70 † | Sasebo K K | 25/01/1933 | 14/06/1934 | 09/11/1935 | 10/12/1941 | † | Loss by aircraft | |
|
I-71 / I-171 † | Kawasaki | 15/02/1933 | 25/08/1934 | 24/12/1935 | 01/02/1944 | † | Loss by surface ship | |
|
I-72 / I-172 † | Mitsubishi | 16/12/1933 | 20/06/1935 | 07/01/1937 | 10/11/1942 | † | Loss by surface ship | |
|
I-73 † | Kawasaki | 05/09/1933 | 20/06/1935 | 07/01/1937 | 27/01/1942 | † | Loss by submarine | |
| Kaidai 6B: | |||||||||
|
I-74 / I-174 † | Sasebo K K | 16/10/1934 | 28/03/1937 | 15/08/1938 | 12/04/1944 | † | Loss by aircraft | |
|
I-75 / I-175 † | Mitsubishi | 01/11/1934 | 16/09/1937 | 18/12/1938 | 04/02/1944 | † | Loss by surface ship | |