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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 ...


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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 ...


3
Omata Hiroshi: Optical recording medium and process for producing the same.. Canon, April 8, 1992: EP0479577-A2 (4 worldwide citation)

An optical recording medium has tracking tracks and recording tracks interposed between the tracking tracks. The width of the recording tracks in a specific region is larger than that in other region.


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Omata Hiroshi C O Canon Kabush: Magnetooptical recording medium.. Canon, May 25, 1994: EP0598524-A1 (3 worldwide citation)

A magnetooptical recording medium has at least two recording layers (3,4) formed on a substrate (1) and having mutually different Curie temperature. The recording layer (3) having the highest Curie temperature is formed with a thickness greater than 0.5 nm but not exceeding 5 nm. The recording mediu ...


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