Kabushiki Kaisha Toshiba

Tatsuki Ogisu

Satoshi Okada

Masaki Yoda

Motohiko Kimura

Yoshiaki Ono

Hiroaki Igakura

The present invention provides an underwater maintenance and repair technology of including a laser oscillator for generating a laser beam and a working head movably attached to the vicinity of a working target portion in the underwater and adapted to scan the laser beam to the working target portion, and further, independently fixing the working head to the vicinity of the working target portion, jointing an optical fiber cable to the working head by using a joint mechanism through a remote control operation, guiding a laser beam emitted from a laser oscillator via the optical fiber cable, and irradiating the laser beam from the working head to a surface of the working target portion while scanning it so as to achieve surface modification, surface working and decontamination.

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Yokohama, Japan

Tatsuki Ogisu