Origin Electric Company, Limited

Panasonic Corporation

Masahiko Kotoyori

Hironobu Nishimura

Koji Yamaguchi

Masahiro Nakamura

Hideo Kobayashi

Shinichi Shinohara

Yoshihiko Naito

Katumi Yamaguchi

Eiji Ohno

Yutaka Matsumoto

Kazuya Hisada

Keiji Nishikiori

Toshio Kashiwagi

Naozumi Mizutani

An optical disk manufacturing apparatus which employs first and second signal layer forming mechanisms, a reflection layer forming mechanism, a light transmission layer forming mechanism and first, second and third transportation mechanisms. The apparatus further includes a liquid material supplying mechanism, a first and second rotation mechanism, first and second hardening light radiation apparatuses, a ring-shaped mask portion, and a mask transfer mechanism.

Optical disc production apparatus

A molding machinewhich molds two sheets of disc substrates on which the information is recorded simultaneously, a cooling mechanismfor cooling each of the disc substrates, first movably mounting meansfor movably mounting the disc substrate from the molding machine onto the cooling mechanism, and a second movably mounting meansfor mounting each of the disc substrates onto a receiving portion of the turn tableare provided. In addition, a film forming devicefor receiving sequentially each of the disc substrates from this movably mounting meansand forming a reflective film on one of the surfaces of each of the received disc substrates on which the information is recorded; a turn tablehaving a plurality of receiving portions on which the disc substrates are mounted and which rotates intermittently through each constant angle; a reversing mechanismwhich reverses 180 degrees each of the disc substrates; and an overlapping mechanism for overlapping the reversed disc substrates over the other disc substrates are provided. Furthermore, spinnersfor rotating the overlapped two sheets of disc substrates and a curing devicewhich radiates ultra-violet rays onto the disc substrates which are rotated by the spinners to cure the liquid adhesive. According to the above-described structure, an optical disc which is compact, is fast in a production speed, and has a high quality can be achieved.

Optical disk producing device and producing method

In a plate bonding system for bonding first and second substrate discs (or other plates) with adhesive, there are provided a first section for bringing the first and second substrate discs closer to each other with the interposition of adhesive, and a second section for producing an electric field in the interspace between the first and second substrate discs. The second section produces the field and thereby deforms the adhesive into a tapered shape to minimize the initial contact area and thereby prevent voids from being involved in the adhesive.

Bonding system and method

A disk bonding system or method comprises a first element for forming an annular adhesive layer on an upwardly facing joint surface of a lower side disk, and a second element for forming a dotted adhesive layer on a downwardly facing joint surface of an upper side disk. Then, a third element sets the upper and lower side disks in a confronting state, and reduces the spacing between the upper and lower side disks until the annular adhesive layer and the dotted adhesive layer are sandwiched between the upper and lower side disks. During this, the annular adhesive layer and the dotted adhesive layer are brought into contact with each other, and the contact region expands in a manner to prevent occurrence of bubbles.

Disk bonding method and system

A system for fabricating a bonded disk, comprises an adhesive supplying section for supplying a liquid adhesive on a first disk, a disk handling section for mating the first disk with a second disk, a spin coating section for spreading the adhesive between the first and second disks and a curing section for curing the adhesive. The disk handling section comprises a disk transfer mechanism for arranging the first and second disks in a confronting state in which the first and second disks confront each other and the adhesive supplied to the first disk is interposed between the first and second disks, and for transferring the first and second disks to the spin coating section so that the first and second disks remain in the confronting state.

Disk bonding system

To improve the reliability, operating speed, size of equipment and economy, a disk coating system for forming a coating on a disk such as a compact disk is arranged to transfer disks to and from a pair of spinners with first and second disk transfer mechanisms. The coating system further has an intermittently rotating turntable, an apparatus for supplying a coating material to each disk on the turntable at a predetermined position, and a system for curing a coating layer on each disk. The spinners for removing an excess amount of the coating material are placed between the turntable and the curing system. The first transfer mechanism is for transferring disks from the turntable to the spinners, and the second transfer mechanism is for transferring disks from the spinners to the curing system. The two spinners are substantially equidistant from a predetermined disk position on the turntable. The first transfer mechanism has two arms extending in two directions diverging from a pivot at a predetermined angle. With both arms, this transfer mechanism can transfer disks from the predetermined disk position on the turntable alternately to the first and second spinners at a high speed.

Growing community of inventors

Tokyo, Japan

Masahiko Kotoyori