Effective March 23, 2015, Ohio recognizes the concealed handgun license of any non-resident who has a valid concealed handgun license from any other state, regardless of whether Ohio has entered into a reciprocity agreement with that state.
More information can be found here: http://www.ohioattorneygeneral.gov/Law-Enforcement/Concealed-Carry/Concealed-Carry-Reciprocity-Agreements