Fujifilm Corporation

Fuji Photo Film Company, Limited

Maruyama Mfg. Co., Ltd.

Minoru Araki

Makoto Nagao

Satoshi Wakamatsu

Takeshi Fujii

Kazunori Komatsu

Makoto Shimizu

Masayuki Kubota

Kenji Sugiyama

Kenji Ichikawa

Toshihisa Nemoto

Katsutoshi Inagaki

Eiji Matsuoka

Instant film

In a chain saw, the tension of a saw chain attached around the outer edge of a guiding bar can be adjusted appropriately by adjusting the force transmitted to a connecting unit during operation of a hand guard. Thus, the saw chaincan be easily strained at great tension without use of a strong coil spring.

Chain saw

A magnetic transfer apparatus and method includes air supply for supplying air into a space above a peripheral portion of a double-sided slave disc beyond a second master disc in an air-tight chamber formed when a first disc holder holding a first master disc and the slave disc in contact and a second disc holder holding the second master disc are brought into contact with each other so as to hold and sandwich the slave disc between the first and second master discs, the air supply being controlled to take place at least either during formation of the air-tight chamber or during opening the air-tight chamber.

Magnetic transfer apparatus, magnetic transfer method and magnetic recording medium with magnetic information transferred thereto

A holder unit for use in a transfer apparatus that causes a surface of a transfer master and a surface of a slave medium to be in direct contact with each other and transfers information on the transfer master surface to the slave medium surface. The holder unit includes a pair of gripping members, movable toward and away from each other, for holding the transfer master. The transfer master is stuck firmly on either or both of the pair of gripping members through or without an elastic member.

Magnetic transfer holder unit, transfer apparatus, method of manufacturing a transfer medium, and magnetic recording medium

The present invention provides a master disk for magnetic transfer which has a disk-like outer shape and in the surface of which a large number of fine magnetic layer patterns are formed, wherein the relationship between the outside diameter size d (mm) of the extreme outer circumference of the magnetic layer pattern and the master disk thickness t (mm) is given by 2.04&#xd7;10&#xd7;d+0.006&#x2266;t&#x2266;8.15&#xd7;10&#xd7;d+0.024, in order to exclude the effects of bows, strains and thickness deviations of a master disk in performing magnetic transfer and ensure that accurate transfer of magnetization patterns can be performed.

Master disk for magnetic transfer, magnetic recording medium and magnetic recording apparatus

Provided is a method of magnetic transfer. The method includes initially DC-magnetizing a transfer-recipient disc in a circumferential direction, by applying a magnetic field to the transfer-recipient disc in the circumferential direction thereof bringing initially DC-magnetized transfer-recipient disc and a master disc into close contact with each other, on the top side of the master disc a magnetic layer including a great number of protrusions that configure a magnetic pattern being formed; and executing magnetic transfer in such a way that a magnetic-field generation device is provided, and that, when a magnetic field is applied in a circumferential direction to the transfer-recipient disc and the master disc, transfer of the magnetic pattern of the master disc onto the transfer-recipient disc occurs.

Magnetic-transfer method, magnetic recording medium, and magnetic recording device

A magnetic transfer apparatus for transferring patterned information formed on a surface of a master disk to a magnetic recording medium as a slave disk placed in intimate contact with the surface of the master disk by applying a magnetic field to the disks, which comprises: a magnet; a first holder for holding the master disk and the slave disk; and a second holder facing the first holder, the first holder being supported by a supporting member, the magnet being disposed on only an outer side of the second holder, and the second holder being formed solely of a lid.

Magnetic transfer apparatus

A photo film cassette includes a spool for winding the photo film thereabout, and a cassette shell for containing the spool in a rotatable manner. The spool has first and second ends disposed to appear outside the cassette shell. To manufacture the photo film cassette, a cassette shell with the spool is retained while confronting a drive shaft with the first end and confronting a support shaft with the second end. The support shaft is slid in an axial direction, to support the second end. The spool is displaced via the support shaft to a braked state where rotation of the spool is blocked. The spool is displaceable between the braked state and a released state. The drive shaft is rotated and slid while the spool is in the braked state, to engage the drive shaft with the first end in a key-engaged manner. After the drive shaft is engaged with the first end, the spool is displaced from the braked state to the released state. The drive shaft is rotated to wind the photo film about the spool, which is rotated inside the cassette shell while supported by the support shaft and the drive shaft.

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Odawara, Japan

Minoru Araki