Standard answer: The Mitsubishi air-conditioning trademark was registered by Mitsubishi Electric in 1983. Mitsubishi Heavy Industries has been unable to register the air-conditioning trademark and has been rejected. In 2013, Mitsubishi Heavy Industries and Haier successfully registered the air-conditioning trademark. Mitsubishi Heavy Industries and Mitsubishi Heavy Industries Haier have a cooperative relationship. Mitsubishi Heavy Industries relies on the trademark of Mitsubishi Heavy Industries Haier to sell air conditioners, so Mitsubishi Heavy Industries has the trademark of Mitsubishi Heavy Industries Haier on the fuselage.