List updated:
JOIK NHK R 1 , Sapporo, 567 kHz (sent a Fup and replied in 11 weeks)
JOAK NHK R 1, Shobu-Kuki 594 kHz
JOBK 666 NHK R 1, Osaka 666 kHz
JOMR MRO Hokuriku Hoso, 1107 kHz
JOLC NHK R 2, Tottori 1125 kHz
JOVF Wakayama Bc. Co, 1431 kHz
JOYR RSK Sanyo Hoso, Okayama 1494 kHz
JOCK NHK R1 Nagoya 729 kHz sent only the standard "we have no QSL cards" letter. A follow-up with a PPC was not answered.