Abstract: The present invention provides a polymer gel composition including: at least two polymer compounds which interact with each other to form a polymer complex; and a liquid. One of the polymer compounds forms a three-dimensional crosslinked structure, at least one other polymer compound is compatible with the liquid, and at least a portion of the compatible polymer compound is included in the three-dimensional crosslinked structure. Preferably, when the polymer complex is disassembled or decomposed by stimuli, the polymer compound forming the three-dimensional crosslinked structure changes its volume by absorbing or releasing the liquid. The three-dimensional crosslinked structure is preferably in a particle shape. An optical device using such a polymer gel composition is also provided.

Abstract: A cosmetic containing L-ascorbic acid 2-phosphate sodium salt that excels in long-term stability. In particular, there is provided a cosmetic characterized in that L-ascorbic acid 2-phosphate sodium salt (A) and at least one compound (B) selected from the group consisting of arginine, urea and triethanolamine are contained in a mixing mass ratio of (A):(B) ranging from 1:0.001 to 1:0.5.

Abstract: A positioning mechanism for preventing a slider from inadvertently moving laterally comprises a projecting wall provided on a lower surface of a tray and having a first wall extending forward and a second wall extending from the first wall toward a direction orthogonal to the first wall, and at least two projections provided on the slider for holding therebetween the second wall when the tray is in a completely advanced state and the first wall when the tray is in an advancing or a retracting state.

Abstract: An optical material comprising an ionic liquid and a polymer gel including a light controlling material, wherein the polymer gel absorbs and/or releases the ionic liquid in accordance with a temperature change. Also provided is an optical element comprising two substrates and the optical material between the two substrates.

Abstract: A mechanism deck provided with a turntable for rotating a disk and movable upward or downward as coupled to a slide member comprises a subchassis having the turntable mounted thereon, and a frame fitting to the slide member and supporting the subchassis. The chassis is provided with a holding mechanism for upwardly or downwardly pivotally movably supporting the frame as fitted to the slide member through a space between the clamp support plate and the chassis. The frame is provided with a pin projecting outward therefrom and supported by the holding mechanism for restraining the frame from backlashing upward or downward, and the projecting pin has a projection for preventing the frame from backlashing laterally.

Abstract: The present invention relates to a light-controlling element comprising a polymer gel composition layer containing: a holding member; liquid held by the holding member; and a stimulus-responsive polymer gel which is held by the holding member and which changes in volume by absorbing or discharging the liquid due to an external stimulus, wherein the stimulus-responsive polymer gel is arranged in a single layer in the holding member, and also relates to a method for manufacturing the element. The polymer gel composition layer can be provided with a substrate on one side or both sides thereof, and further can be provided with a stimulus providing member.

Abstract: The present invention relates to an optical element including at least; two substrates oppositely arranged; a liquid disposed between the facing surfaces of the substrates; and a chargeable polymer disposed between the facing surfaces of the substrates for swelling or contracting by absorbing or releasing the liquid when an electric field is applied, wherein (1) an area of each adhering fixing portion is smaller than a maximum sectional area of the chargeable polymer particle at the time of maximum swelling, and (2) a non-adhesive portion surrounds each adhering fixing portion, and the non-adhesive portion is disposed at least at a largest outer circumference of the chargeable polymer particle at the time of maximum swelling and extends inside the largest outer circumference of the chargeable polymer at the time of maximum swelling.

Abstract: The present invention relates to an optical element including at least; two substrates oppositely arranged; a liquid disposed between the facing surfaces of the substrates; and a chargeable polymer disposed between the facing surfaces of the substrates for swelling or contracting by absorbing or releasing the liquid when an electric field is applied, wherein

Abstract: A positioning mechanism for preventing a slider from inadvertently moving laterally comprises a projecting wall provided on a lower surface of a tray and having a first wall extending forward and a second wall extending from the first wall toward a direction orthogonal to the first wall, and at least two projections provided on the slider for holding therebetween the second wall when the tray is in a completely advanced state and the first wall when the tray is in an advancing or a retracting state.

Abstract: The present invention provides a polymer gel composition including: at least two polymer compounds which interact with each other to form a polymer complex; and a liquid. One of the polymer compounds forms a three-dimensional crosslinked structure, at least one other polymer compound is compatible with the liquid, and at least a portion of the compatible polymer compound is included in the three-dimensional crosslinked structure. Preferably, when the polymer complex is disassembled or decomposed by stimuli, the polymer compound forming the three-dimensional crosslinked structure changes its volume by absorbing or releasing the liquid. The three-dimensional crosslinked structure is preferably in a particle shape. An optical device using such a polymer gel composition is also provided.

Abstract: The present invention relates to a polymer gel composition including: a swelling liquid; and a polymer gel having characteristics of absorbing and releasing the swelling liquid due to a change in temperature to thereby change a volume thereof reversibly, and including a crosslinked polymer having at least a hydrogen bonding group, wherein the crosslinked polymer included in the polymer gel is a copolymer of at least two monomer components including a (meth)acrylamide or a mono-substituted derivative thereof as a monomer component (A) and a monomer different from the monomer component (A) as a monomer component (B). The invention also relates to an optical device, a resin composition and an optical film, all using the polymer gel composition.

Abstract: An adjusting mechanism for altering the tilting angle of a guide rod in a plane containing the direction of movement of a pickup and orthogonal to an upper surface of a chassis has a horizontal piece having one end attached to the chassis and the other end in contact with the guide rod for biasing the guide rod toward an adjusting screw, and a vertical piece for restraining the guide rod from deflecting in a plane containing the direction of movement of the pickup and approximately parallel to the upper surface of the chassis. The horizontal piece and the vertical piece each have an upper end positioned at a lower level than the lower surface of a tray having a disk placed on a turntable.

Abstract: A mechanism deck provided with a turntable for rotating a disk and movable upward or downward as coupled to a slide member comprises a subchassis having the turntable mounted thereon, and a frame fitting to the slide member and supporting the subchassis. The chassis is provided with a holding mechanism for upwardly or downwardly pivotally movably supporting the frame as fitted to the slide member through a space between the clamp support plate and the chassis. The frame is provided with a pin projecting outward therefrom and supported by the holding mechanism for restraining the frame from backlashing upward or downward, and the projecting pin has a projection for preventing the frame from backlashing laterally.

Abstract: Polymeric particles of a desired particle size improved with the dispersion state of a pigment contained in the high polymeric particles can be obtained by a production method, which includes solution-polymerizing monomers having polymerizable unsaturated bonds in the presence of ionic particles sulfonic group or carboxyl group on the surface thereof.

Abstract: The object of the invention is to provide a new external preparation for skin having high melanine formation inhibition and also anti-aging effect, and desired drug effect can be obtained without degradation in a pharmaceutical preparation. The external preparation for skin includes the extract of Pueraria mirifica in conbination with an active ingredient selected from the group consisting of a whitening agent, an anti-oxidant, an anti-inflammation agent, an ultraviolet-ray shielding ingredient, a cell activation agent and humectant.

Abstract: An adjusting mechanism for altering the tilting angle of a guide rod in a plane containing the direction of movement of a pickup and orthogonal to an upper surface of a chassis has a horizontal piece having one end attached to the chassis and the other end in contact with the guide rod for biasing the guide rod toward an adjusting screw and a vertical piece for restraining the guide rod from deflecting in a plane containing the direction of movement of the pickup and approximately parallel to the upper surface of the chassis. The horizontal piece and the vertical piece each have an upper end positioned at a lower level than the lower surface of a tray having a disk placed on a turntable.

Abstract: The object of the invention is to provide a new external preparation for skin having high melanine formation inhibition and also anti-aging effect, and desired drug effect can be obtained without degradation in a pharmaceutical preparation.

Abstract: A composite tray comprises a small cassette tray and a large cassette tray pivoted to inside portions of the tray. A first lid opener for opening the lid of a large cassette is pivoted to inside portions of the large cassette tray. Pivoted to the opener is a second lid opener pivotally movable in a plane parallel to the bottom surface of the large cassette for opening the lid of a small cassette. The second lid opener is positioned in a large cassette supporting region in the absence of the large cassette, but is pushed by the lid of the large cassette to escape to the outside of the tray when the cassette is placed on the tray.

Abstract: A chassis mounting thereon a drive slide for rotating tape guides arranged within a cassette in a tape withdrawing direction, and a cam gear for driving the drive slide. The cam gear and the drive slide provide a linear motion mechanism for connecting the drive slide with the cam gear by the rotation of the cam gear through a predetermined angle and disengaging the drive slide from the cam gear by the rotation of the cam gear through more than the predetermined angle. A lock mechanism is provided for connecting the drive slide with the chassis when the drive slide is out of connection with the cam gear and disengaging the drive slide from the chassis when the drive slide is connected with the cam gear.