GENEVA, May 5 -- MITSUBISHI ELECTRIC CORPORATION (7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo1008310), 三菱電機株式会社 (東京都千代田区丸の内二丁目7番3号), KWANSEI GAKUIN EDUCATIONAL FOUNDATION (1-155, Uegahara-Ichiban-cho, Nishinomiya-shi, Hyogo6628501), 学校法人関西学院 (兵庫県西宮市上ケ原一番町1番155号) filed a patent application (PCT/JP2023/038843) for "METHOD FOR EVALUATING SOUND QUALITY OF ROTARY MACHINE, AC MACHINE DRIVE SOUND C...