Matsushita Electric Industrial Co., Ltd.

Polygram International Holding B.v.

Ricoh Company, Ltd.

Star Micronics Company Limited

Masashi Ito

Hiroyuki Nakamura

Hiroshi Yasuda

Mamoru Soga

Keishi Taniguchi

Masaichiro Tatekawa

Hidekazu Arase

Takamichi Enomoto

Toshiki Itoi

Tsutomu Matsuda

Hermann Grobecker

Toshiki Matsuno

Gilbert E Mestdagh

Shuichi Obata

Akifumi Hashimoto

An ink composition containing a colorant, a humectant, water, and a water-soluble substance that begins to be condensation-polymerized as the water evaporates is ejected such that drops of the ink composition are adhered onto a print materialwhose surface is acidic, whereby an image is formed on the print material

Image formation method

In an ink composition used for inkjet recording which contains a colorant, a humectant, water, and a water-soluble substance that begins to be condensation-polymerized as the water evaporates, a condensation-polymerization accelerating agent for accelerating the condensation-polymerization of the water-soluble substance is further contained.

Ink composition for inkjet recording

Disclosed is an objective lens driving apparatus having a holder holding an objective lens and connected to a base through at least four linear members such that the holder can be moved both in the focussing direction and in the tracking direction orthogonal to the focussing direction through the flexing of the linear members Undesirable local resonance can be suppressed due to the use of the linear members in support of the holder

Objective lens driving apparatus for optical disc player

Disclosed are a printer and a method of switching ribbon tracks of an ink ribbon. The printer uses an ink ribbon having a plurality of ribbon tracks of the same color and properly switches the ribbon tracks from one to another in a printing operation. This ribbon-track switching method switches the ribbon tracks from one to another when a printing page is changed or an equivalent operation is executed. It is therefore possible to suppress a decrease in printing density to thereby prolong the service life of the ink-ribbon cartridge. Since the ribbon tracks are switched from one to another when a printing page is changed or an equivalent operation is executed, thus inhibiting the switching of the ribbon tracks on the same page, the printing density on the same page becomes even and the printing quality can be improved.

Printer and method of switching ribbon tracks of ink ribbon

The movable range of an objective of an optical pickup device used in optical disc reproducing apparatus is increased and the size of the device is reduced by moving the objective solely or in combination with a collimating lens system in that range. The objective and collimating lens systems are integrated into a lens holder and located in the path of a diverging beam of a semiconductor laser.

Optical pickup which includes a single objective lens having

In an objective lens driving unit, an objective lens (12) is fixed to a coil bobbin (11), which has a focus drive coil (13a) wound therearound with its axis coaxial with the axis of the objective lens (12) and tracking dive coils (13b, 13c) wound thereon with their axes perpendicular with the axis of the objective lens (12), and the focus drive coil (13a) and the tracking drive coils (13b, 13c) are put in an open magnetic field produced by a magnetic yoke (14) having permanent magnets (15a, 15b), which makes magnetic flux to cross the coils, thereby to drive the objective lens (12); thus the size of the unit is decreased and made light, and further, the weight of the moving part is made light, to boost sensitivity thereby.

Objective lens driving unit

Tray (1) for receiving and retaining a rigid circular information disc (4). Can be inserted into a storage cassette (28) and comprises a recess (3) and retaining means (7, 15, 16) for retaining the information disc (4) in the recess (3). The tray (1), which constitutes an easy-to-remove and easy-to-introduce insert for the storage cassette, is constructed as a drawer-type insert for a playing apparatus. The retaining means (7, 15, 16), which include one resilient retaining means (7), are arranged opposite one another on the edge of the recess (3).

Cassette with tray ejection means

A disc accommodation tray (T) and a disc player (P) employing such a tray for an optical disc system, etc. employing circular discs (1) are provided. The accommodation tray had (T), at least one engaging or retaining portion (9, 10, 11, 12) elastically clamping the disc (1), and a hole or opening (13, 14) through which a turntable (17) is inserted. Thus, it is possible to mount the tray (T) onto the disc player (P), with the disc (1) accommodated in the tray (T), and to dismount the tray (T) from the disc player (P), with the disc (1) accommodated in the tray (T).

Disc accommodation tray and disc player employing said disc

Tray (1) for receiving and retaining a rigid circular information disc (4) can be inserted into a storage cassette (28) and comprises a recess (3) and retaining means (7, 15, 16) for retaining the information disc (4) in the recess (3). The tray (1), which constitutes an easy-to-remove and easy-to-introduce insert for the storage cassette, is constructed as a drawer-type insert for a playing apparatus. The retaining means (7, 15, 16), which include one resilient retaining means (7), are arranged opposite one another on the edge of the recess (3).

Disc receiving tray and a combination of such a tray with a storage

A pickup cartridge and a pickup cartridge mounting device therefor wherein a plug protrusion of tetragonal sectional area is formed at the rear end of a pickup cartridge, a recess of tetragonal sectional area with at least three walls for receiving the plug protrusion is formed at the front end of a tone arm or the like, and after the plug protrusion is inserted into the recess, the protrusion is strongly clamped between two walls of the recess by a mounting screw. Thus, replacement of pickup cartridges is made easy and reliable.

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Settsu, Japan

Masashi Ito