垂直すいちょく磁気じき記録きろく

suichokujikikiroku

1. Not perpendicular magnetic recording.

1. Was perpendicular magnetic recording.

1. Vertical magnetic recording with/in/by.

1. Perpendicular magnetic recording; Vertical magnetic recording

1. Not perpendicular magnetic recording.

1. Not perpendicular magnetic recording.

1. Vertical magnetic recording was.

1. Perpendicular magnetic recording.

1. Is not perpendicular magnetic recording.; It is not perpendicular magnetic recording.

1. Was not perpendicular magnetic recording.

1. Probably perpendicular magnetic recording.

1. Was not perpendicular magnetic recording.; Wasn't perpendicular magnetic recording.

1. Wasn't perpendicular magnetic recording.

1. Probably perpendicular magnetic recording.

1. Was not perpendicular magnetic recording.

1. If/when vertical magnetic recording…

1. if/when vertical magnetic recording

1. If/when perpendicular magnetic recording