Ohio Rev. Code Ann. § 1701.05
(A) Except as provided in this section, and in sections 1701.75, 1701.78, and 1701.82 of the Revised Code, which sections relate to the reorganization, merger, and consolidation of corporations, the corporate name of a domestic corporation shall comply with all of the following:
(2) It shall be distinguishable upon the records in the office of the secretary of state from all of the following:
(B) The secretary of state shall determine for purposes of this section whether a name is "distinguishable" from another name upon the secretary of state's records. Without excluding other names that may not constitute distinguishable names in this state, a name is not considered distinguishable from another name for purposes of this section solely because it differs from the other name in only one or more of the following manners: