Kabushiki Kaisha Shinkawa

Tdk Corporation

Junichi Ide

Mamoru Usami

Haruhiko Yamaguchi

Tsuyoshi Itoh

Futoshi Kobayashi

Shigeru Fuke

Takeshi Umega

Kouhei Suzuki

Hideki Okajima

Yoshimi Yodogawa

Tomoki Ushida

Koji Sato

Kenji Yamaga

Atsushi Koyama

Yukitaka Sonoda

When manufacturing an optical recording medium by forming a resin layer on a surface of a substrate and then forming a center hole that passes through the substrate and the resin layer, a method of manufacturing an optical recording medium according to the present invention forms the center hole by forming, in the resin layer, a circular cut with a larger diameter than the center hole so as to surround a formation position of the center hole and then pressing in a punching blade for forming the center hole from a rear surface side of the substrate. By doing so, detachment of the resin layer and the production of burrs at or near the center hole can be avoided while reducing the manufacturing cost.

Optical recording medium producing method, and optical recording medium producing device

An intermediate for an optical recording medium, according to the present invention, is an intermediate produced beforehand for manufacturing an optical recording medium that has a central mounting hole formed in a central portion thereof and one or more kinds of functional layers formed on a surface thereof, for enabling at least one of information recording and information reproduction. The intermediate has a provisional central hole, which is smaller in diameter than the central mounting hole, formed in a central portion thereof. This makes it possible to drop resin in the vicinity of the center of the intermediate without using a disk-shaped member, in performing spin coating on the intermediate, whereby it is possible to make the layer of applied resin substantially uniform in thickness.

Intermediate for optical recording medium and method of manufacturing the optical recording medium

There is provided an optical recording medium-manufacturing apparatus that is capable of avoiding breakage of a substrate while avoiding formation of a central hole off-center with respect to the substrate. A control section causes the vertical movement section to move an ultrasonic horn in directions toward and away from the cutting edge of a punching blade section to thereby cause the ultrasonic horn to press the disk-shaped substrate and at the same cause an ultrasonic generator to perform ultrasonic vibration at least from a time point at which the disk-shaped substrate is brought into contact with the cutting edge of the punching blade section to a time point at which the punching of the central hole is completed.

Optical recording medium-manufacturing apparatus

There is provided an optical recording medium-manufacturing apparatus that is capable of accurately transferring a disk-shaped apparatus during a manufacturing process, and at the same time occupies a small installation area. A control section causes a cut-forming machine installed at a cut-forming location to form a cut in a resin layer of a disk-shaped substrate, then causes an indexing mechanism to rotate a transfer stage to thereby transfer the disk-shaped substrate formed with the cut to a central hole-forming location, and then causes a punching machine to punch a central hole.

An optical recording medium-manufacturing apparatus which is capable of reducing wear of a cut-forming blade section used for forming a cut in a resin layer, without increasing the component costs of the apparatus. An ultrasonic horn includes a hollow-cylindrical cut-forming blade section for being pushed into a resin layer formed on one side of a disk-shaped substrate, thereby forming a circular cut in the resin layer. A control section controls motion of the ultrasonic horn caused by a moving mechanism. The control section causes the ultrasonic horn to be pushed in to the resin layer while causing ultrasonic vibration thereof to thereby form the cut, and while maintaining a state of ultrasonic vibration of the abutment section and a pushed-in state of the cut-forming blade section, causes the punching blade section to be pushed into the disk-shaped substrate, to form the central hole.

A lead frame magazine conveying device including magazine guides that guide the lead frame magazine to be conveyed. The magazine guide comprises a fixed guide and a movable guide which is a bar attached at the end of a swing lever. When the movable guide is brought into contact with one side of the lead frame magazine, the swing lever is tightened by a screw so as not to swing, thus turning the movable guide so as to be immovable, making it possible to smoothly guide the lead frame magazine in cooperation with the fixed guide which is in contact with another side of the lead frame magazine.

Magazine conveying device

A bonding apparatus provided with a clamping device for holding a workpiece such as a tab tape, comprising an upper clamper and a lower clamper which are respectively divided into two sections. The upper and lower clampers are respectively mounted on an upper clamper holding plate and a lower clamper holding plate so that the gaps between facing surfaces of the respective sections of the clampers can be adjusted.

Clamping mechanism for a bonding apparatus

A lead frame magazine conveying device including vertically provided magazine loader and unloader sections and an elevator system which transferred the lead frame magazine between the magazine loader and unloader sections, and the conveying device further including a a shutter that is movable back and forth so as to come into contact with or close to a magazine which has been transferred onto the magazine unloader section, thus preventing the magazine from falling over and from dropping from the magazine unloader section.

An apparatus for conveying magazines which are for electronic devices such as semiconductors, etc. including a magazine pusher that pushes the magazines placed on a magazine stand toward an elevator, slide rails that are movable back and forth between the magazine stand and the elevator, and a slide rail pusher that drives the slide rails. When all the magazines on the magazine stand are pushed by the magazine pusher and the front most magazine among them is transferred onto the slide rails, slide rail pusher brings the slide rails to the elevator so that the elevator lifts the magazine to a predetermined height so that electronic devices are brought into or out of the magazine. Thus, many magazines are placed on the magazine stand without inviting any positioning errors, and the apparatus can meet any change of the size of the magazines to be conveyed.

Magazine conveying apparatus

A structure for mounting reels on a tape supply device used, for example, in a tape bonding machine without the use of spacers including a sleeve, a cylindrical grooved cam which has a pair of grooves that are opposite in circumferential directions and is rotatably fitted over the sleeve, a reel-holding plate which is rotatably and slidably provided on the grooved cam, a reel shaft inserted into the sleeve so that the reel shaft can rotate and slide in the axial direction, and a movement-transmitting assembly which moves the reel-holding plate and reel shaft in opposite directions when the grooved cam is turned so that a portion on the reel shaft on which a tape reel is fitted can be changed to any desired length.

Growing community of inventors

Tokyo, Japan

Junichi Ide