High courts on Thursday rejected two more lawsuits aimed at nullifying the results of the Upper House election in July over the nationwide disparities in voting values.

The rulings were the latest in a series of cases challenging the election since last week.

But the Osaka High Court and the Naha branch of the Fukuoka High Court differed in their interpretations of the maximum disparity of 3.08 times between the most- and least-represented constituencies in the July 10 House of Councilors election. The former termed the system as being "in a state of unconstitutionality" and the latter termed it "constitutional."