Logo Brand Number of cassettes
in catalog 		Year
Onix 2 1978 - 1978
Optima 5
Optimax 2 1978 - 1978
Opus 17
Ora 5 1992 - 1992
Orchid 5 1984 - 1984
Orson 1
Osaka 1 1976 - 1976
Osawa 8 1983 - 1983
Oscar 1
Oxus 9 1986 - 1986
P-X Sound 1
P.L.E. 1 1978 - 1978
PANDA (熊猫) 1
PD Magnetics 1 1980 - 1980
PDM 44 1981 - 1994
PEGO Magnetic 2 1988 - 2001
PGM 6 1992 - 1992
PGP RTB 3
PMD 5

Now on eBay