Patent ID: 7936647

Claim:
An optical information recording device comprising: an acquisition section configured to acquire recording information to be recorded on an optical information recording medium, the recording information being recorded by forming a recording mark at a position where an optical beam is focused and being reproduced based on an optical reflectance of the recording mark; an information control section configured to divide the recording information based on the number of one-surface beam emission sections and other-surface beam emission sections; a one-surface recording section including at least one one-surface beam emission section configured to emit a one-surface recording beam, based on part of the recording information divided by the information control section, to one surface of the optical information recording medium, and focus the one-surface recording beam on a predetermined target position to form the recording mark, the one-surface recording section using the at least one one-surface beam emission section to form recording marks at the same time; and an other-surface recording section including at least one other-surface beam emission section configured to emit an other-surface recording beam, based on a remainder of the recording information divided by the information control section, to the other surface of the optical information recording medium, and focus the other-surface recording beam on a predetermined target position to form the recording mark, the other-surface recording section using the at least one other-surface beam emission section to form recording marks at the same time as the one-surface beam emission section.