1. (1) T. B. Martin, Jr.: “Magnetic transmission”, U. S. Patent 3,378,710 (1968)
2. (2) K. Atallah and D. Howe: “A Novel High-performance Magnetic Gear”, IEEE Transactions on Magnetics, Vol. 37, No. 4, pp. 2844-2846 (2001)
3. (3) T. Ikeda, K. Nakamura, and O. Ichinokura: “Consideration of Rotor Structure in Permanent-Magnet Magnetic Gears”, Journal of the Magnetics Society of Japan, Vol. 34, No. 3, pp. 380-384 (2010) (in Japanese)
4. (4) Y. Mizuana, K. Nakamura, Y. Suzuki, Y. Oishi, Y. Tachiya, and K. Kuritani: “Performance Improvement of Interior Permanent Magnet Magnetic Gear”, Transaction of the Magnetics Society of Japan (Special Issues), Vol. 3, No. 1, pp. 74-78 (2019) (in Japanese)
5. (5) Y. Mizuana, K. Nakamura, Y. Suzuki, Y. Oishi, Y. Tachiya, and K. Kuritani: “Characteristics of Interior Permanent Magnet Magnetic Gear made of Amorphous Alloy”, Transaction of the Magnetics Society of Japan (Special Issues), Vol. 4, No. 1, pp. 52-56 (2020) (in Japanese)