1
Nishimura Naoki, Omata Hiroshi, Honguu Kazuoki: A magnetooptical recording medium and information recording and reproducing methods using the recording medium.. Canon, March 9, 1994: EP0586175-A1 (43 worldwide citation)

A magnetooptical recording medium includes a first magnetic layer in which data is to be stored, and a second magnetic layer. The first magnetic layer is a perpendicular magnetization film at both room temperature and raised temperatures. The second magnetic layer is a perpendicular or in-plane magn ...


2
Nishimura Naoki, Omata Hiroshi, Honguu Kazuoki: A magnetooptical recording medium and information recording and reproducing methods using the recording medium. Canon, October 10, 2001: EP1143434-A2 (4 worldwide citation)

A magnetooptical recording medium includes a first magnetic layer in which data is to be stored; and a second magnetic layer. The first magnetic layer is a perpendicular magnetization film at both room temperature and raised temperatures. The second magnetic layer is a perpendicular or in-plane magn ...