Don't know about Kakashi, since he's not a pure Uchiha he might not be able to copy things efficiently as an Uchiha. The Databook says
"On top of an all-encompassing insight and powerful hypnosis, these eyes are hosts to a jutsu-copying ability that memorizes the techniques their gaze falls upon in an instant, and replicates them."
"The power of insight hidden within these eyes discern the mechanics of all ninjutsu, taijutsu, and genjutsu without restriction, putting it above the crowd even by doujutsu standards."
"The sharingan's true power, in addition to the threat posed by its insight.....is its copying ability, that of making one's own any technique one sets eyes upon. Chakra, hand seals..... all the principles bringing the jutsu into existence will be instantly recorded into the caster's memory, making its utilization possible."
So it can copy anything except Kkg. All others are copied, but you would need the volume of chakra and physical requirements. Minato isn't a chakra powerhouse, nor physically astounding. That's exact quotes from the DataBook on Sharingan. It can copy all mechanics, properties, and chakra of ninjutsu, taijutsu, and genjutsu it gazes on. Just not Kkg.
