Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Toshiyuki Fujioka

Shigeru Namiki

Takaaki Higashida

Mamoru Inoue

Kazuyuki Sawada

Norihide Higaki

Tetsuo Imada

Hiroyuki Fukuno

Kiyoshi Mayahara

Osamu Hirota

Akira Okuda

Keinosuke Kanashima

Hideo Matsumoto

Toshikazu Kozono

Kiyoshi Saeki

Akinobu Katayama

Koji Muraoka

Susumu Nojiri

Before generated air bubbles grow, only the edge of a portion where strength is not to be reduced is locally cooled and solidified to form a wall of fluid. After that, a pin () or the like is pressed into a molten resin portion inside the edge to reduce the volume of a cavity (), thereby reducing the size of generated bubbles. Alternatively, foaming gas is absorbed into resin so as to reduce the volume of generated air bubbles. Thus, a reduction in strength is suppressed.

Method for molding foamable resin

Process and apparatus of producing optical disk and process of producing substrate

It is an object to provide an optical recording medium (disk) bonding apparatus which eliminates the warpage of a disk during bonding and has high precision in the bonding. There are provided means for bonding two substrates and then irradiating radioactive rays from both sides of the substrates when carrying out radiation curing, and a mechanism for shifting the irradiation starts of both radioactive rays to control an amount of warpage of each substrate after the curing.

Disk bonding apparatus and disk bonding method

An optical disk is provided by bonding two substrates to each using a radiation-hardening resin, and leveling and hardening the resin. In an optical recording medium manufacturing apparatus including lamps for emitting radiation to two disks attached to each other with a radiation-hardening resin layer sandwiched therebetween, and a rotation arm for supporting and rotating the two disks to allow the disks to traverse the emission area of the lamps, light source centers of the lamps are positioned radially outside a rotation locus of the center of the disks attached to each other, said locus being drawn while the disks are supported by the rotation arm.

Manufacturing apparatus and method for optical recording medium

During sputtering for use in thin film deposition, anomalous discharge is prevented from generating between a target and a backing plate, and a target presser. In the target presser also serving as an earth shield and a deposition preventing plate, an insulating member staying in contact with the sputtering target or the backing plate is provided with a recess constituted of two or more different depths so that the recess does not come in contact with the sputtering target or the backing plate.

Sputtering apparatus

A method for laminating boards includes placing boards with a narrow gap therebetween, inserting an adhesive injection nozzle the gap, discharging of adhesive from the nozzle into the gap so that the discharged adhesive makes into contact with the two boards, continuing discharging the adhesive while the boards are being rotated in a planar direction thereof so that the adhesive is placed in a loop within the gap, retreating the nozzle from the gap, and narrowing the gap between the boards so that the adhesive is spread throughout the gap.

Method for laminating boards

Growing community of inventors

Osaka, Japan

Toshiyuki Fujioka