Welcome to PT!
There are some people who will say if you aren't going to be home, you should not have a dog. We have 3, we both work 40 hours/wk and we have 3 dogs. They are alone from 7:45-4:15, and yet they are happy dogs...they get lots of attention at night and on the weekends, and during the day (even if we are home) they sleep.
I think as long as you give you dogs lots of attention/exercise a few hours a day, they will adjust to the schedule just fine....and from what I have heard, Shiba Inu's are alittle more independent then some breeds of dog.
Good luck!
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