Core Points - The Fukushima nuclear power plant's 3,615 measurement devices were not properly tested and allegedly had falsified test certificates [1] - The devices, primarily produced by Chiyoda Technol Corporation, were used to monitor radiation effects on humans and measure air radiation levels [1] - An investigation revealed that Chiyoda Technol sold these devices to the Fukushima plant without completing necessary tests, using falsified data [1] Company Summary - Chiyoda Technol Corporation is implicated in the scandal involving the sale of untested radiation monitoring devices to the Fukushima nuclear power plant [1] - The company issued an official apology on October 30 regarding the incident [1] Industry Summary - The Fukushima nuclear power plant has a history of data falsification, with 199 instances of data manipulation and concealment of reactor faults since 1977 [1] - Following the 2011 nuclear disaster, experts had already determined that core meltdowns had occurred, but the operating company, Tokyo Electric Power Company, downplayed the situation [1] - The Fukushima prefectural government and Tokyo Electric Power Company stated that other functioning devices in the facility mitigated health and safety risks from the untested equipment [1]

Group 1 - The measurement devices used at the Fukushima nuclear power plant were not properly tested and allegedly had falsified test certificates [2][4] - 90% of the problematic devices were used to monitor radiation effects on humans, while others measured radiation levels in the air [4] - Chiyoda Technics Co., which produced the devices, sold them to the Fukushima plant without completing the necessary tests, leading to concerns about data integrity [4] Group 2 - The Fukushima nuclear disaster in 2011 was preceded by a history of data falsification, with 199 instances of data manipulation reported since 1977 [4] - Despite the issues with the measurement devices, local authorities stated that there were other functioning devices in place, mitigating health and safety concerns [4] - Chiyoda Technics issued an apology regarding the incident on October 30 [4]