Rare vintage Japanese transforming robot toys 1980's

Original owner paring down my childhood toy collection. Here are 2 more: One: is a Robotech battle droid. In standing form it's a cool looking mech, but can't remember what exactly he was supposed to transform to so just configured him in the pic into something, lol. He was a fav of mine, so played with a fair amount and joints are not bad... but loose. Two: is a twin gun battle tank style machine that transforms into a work / battle robot. His joints are mostly pretty stiff and not worn out. Overall the pair is in nice clean condition with no cracked or broke parts. I can't seem to find any English spelled manufacturer names on the toys, just the Japanese characters. So no sure who made them... perhaps Bandai? Thanks for looking :)