Hope you can make sense of these directions
If you take the midosuji subway to Tennoji you'll be very near Tobita.
The Midosuji subway is the red line on the maps.
At Tennoji station it might be easiest to exit the subwayin the Kntetsu Department store. Walk up to the 2nd floor and go outside on the pedestrian bridge. As you exit the dept store you'll see the JR station right across from you. Turn left and the Kntetsu Department store will be on you left and the station on your right.
Walk straight over the street and down the stairs and toward Osaka City Hospital. You'll pass a few buildings on your left (Apollo building ,Lucius) and then you'll get to the hospital. Turn in and walk behind the hospital always heading downhill. You'll see the start of a shopping street on your right and a housing complex on your left. Just past the shopping street are some stairs and once you go down them you will be in Tobita.
So it you stand between the dept store and the station the dept store is 9:00 - station is 3:00- you start walking towards 12:00 , but your general direction is 11:00
So turn in the road between the hospital buildings and go up the small hill - the road goes down and curves to the right-you see the shopping street and down the stairs into Tobita.