Abstract: A robot including at least one joint shaft that includes: a first link member and a second link member that are coupled about a rotation axis; a reducer that has an input shaft part fixed to the first link member and an output shaft part fixed to the second link member; a motor that generates a driving force to be input to the reducer; and an input-side encoder that detects a rotation angle of a rotation shaft of the motor; and an output-side encoder that detects a rotation angle between the first link member and the second link member. The output-side encoder includes a scale member that has a pattern and a sensor that detects the pattern on the scale member. The scale member is fixed to an attachment surface, and the sensor is attached to a fixing member fixed to the first link member.

Abstract: A robot having joint shaft that includes: a first-link member and a second-link that are coupled about a rotation axis; a reducer that has an input-shaft fixed to the first-link and an output-shaft fixed to the second-link; a motor that generates a driving force to be input to the reducer; and an input-side encoder and an output-side encoder. The motor is away from the rotation axis, and a power transmission mechanism is provided between the motor and the reducer. The reducer includes a hollow-part and a tubular-member. The tubular-member passes through the hollow-part, one end of which is fixed to the input-shaft or the output-shaft, and the other end of which protrudes from the input-shaft or the output-shaft. The output-side encoder includes a scale and a sensor. The scale is fixed to the tubular-member; and the sensor is fixed to the input-shaft or the output-shaft.

Abstract: A robot including at least one joint shaft that includes: a first link member and a second link member that are coupled about a rotation axis; a reducer that has an input shaft part fixed to the first link member and an output shaft part fixed to the second link member; a motor that generates a driving force to be input to the reducer; and an input-side encoder that detects a rotation angle of a rotation shaft of the motor; and an output-side encoder that detects a rotation angle between the first link member and the second link member. The output-side encoder includes a scale member that has a pattern and a sensor that detects the pattern on the scale member. The scale member is fixed to an attachment surface, and the sensor is attached to a fixing member fixed to the first link member.

Abstract: The present invention relates to an ultraviolet-curable adhesive to be used for laminating a first optical base material and a second optical base material having a light-shielding portion on a surface thereof to each other, the ultraviolet-curable adhesive containing (A) a specified compound represented by the following formula (1), (B) a photopolymerizable compound, and (C) a photopolymerization initiator; a cured product obtained by irradiating the adhesive with an ultraviolet ray; and an optical member having the cured product, such as a touch panel:

Abstract: A vibration suppression method and a machine processing system for properly suppressing vibration of a workpiece during processing, by which it is not necessary that a fixing jig for a workpiece be provided with a special device. A robot has a movable section and a gripping section such as a hand attached to a front end of the movable section. The gripping section is configured to grip a portion of the workpiece, which is different from a part of the workpiece held by the fixing jig, during machining of the workpiece by a machine tool. By holding the workpiece by using the robot during the machining of the workpiece, the workpiece can be prevented from being deformed by a machining reaction force, whereby vibration generated during the machining can be limited.

Abstract: The present invention relates to an ultraviolet-curable adhesive to be used for laminating a first optical base material and a second optical base material having a light-shielding portion on a surface thereof to each other, the ultraviolet-curable adhesive containing (A) a specified compound represented by the following formula (1), (B) a photopolymerizable compound, and (C) a photopolymerization initiator; a cured product obtained by irradiating the adhesive with an ultraviolet ray; and an optical member having the cured product, such as a touch panel:

Abstract: The present invention relates to: an ultraviolet-curable adhesive to be used for laminating a first optical base material and a second optical base material having a light-shielding portion on a surface thereof to each other, the ultraviolet-curable adhesive comprising (A) an organic compound capable of absorbing an ultraviolet ray to emit light and having a specified light absorption wavelength and a specified light emission maximum wavelength, (B) a photopolymerizable compound, and (C) a photopolymerization initiator; a cured product obtained by irradiating the adhesive with an ultraviolet ray; and an optical member comprising the cured product, such as a touch panel.

Abstract: The present invention relates to: an ultraviolet-curable adhesive to be used for laminating a first optical base material and a second optical base material having a light-shielding portion on a surface thereof to each other, the ultraviolet-curable adhesive containing (A) a compound capable of absorbing an ultraviolet ray to emit light, (B) a photopolymerizable compound, and (C) a photopolymerization initiator; a cured product obtained by irradiating the adhesive with an ultraviolet ray; and an optical member having the cured product, such as a touch panel.

Abstract: The present invention relates to a multilayer optical disc having, as an intermediate layer, a cured product layer of an ultraviolet-curable resin composition containing an urethane (meth)acrylate (A) having one or two (meth)acrylate groups in one molecule obtained by reacting a monofunctional or bifunctional organic isocyanate (a) having a molecular weight of 350 or less with a mono(meth)acrylate (b) having a hydroxy group, a (meth)acrylate monomer (B) and a photopolymerization initiator (C), where the content of the (A) component is 5 to less than 40% by weight based on the total amount of the (A) component and the (B) component and the rest is (B), and to a resin composition for said cured product layer.

Abstract: The UV-curable resin compositions for optical discs are characterized in that they comprise (A) 15-70 wt % of a (meth)acrylate monomer that has an ethylene oxide chain in the molecule, (B) 5-50 wt % of a urethane (meth)acrylate, (C) 2-50 wt % of an epoxy (meth)acrylate, and (D) 1-10 wt % of a photopolymerization initiator, in the resin composition. The glass transition temperature of cured films thereof is 10-65° C., and the maximum value of the dynamic loss factor tan ? of the cured films is in the range of 0.35-0.73.

Abstract: The present invention relates to an ultraviolet-curable resin composition for an optical disk containing a sulfur-containing compound (A) represented by the following formula (1): (wherein, R1 and R2 each dependently represent a hydrogen atom, a hydroxy group, an alkyloxy group, an alkyl group, an aryl group, a carboxy group, an alkylthio ether group or a halogen atom) a photopolymerizable compound (B) and a photopolymerization initiator (C), and an optical disk having a thin film of the cured product of said resin composition, particularly an optical disk having a reflective film comprising silver or a silver alloy; and said optical disk is prevented from changing the properties of its reflective film comprising silver or a silver alloy, and thus has a higher durability.

Abstract: Disclosed is an ultraviolet-curable resin composition containing a polyurethane compound (A), a photopolymerization initiator (B), and an ethylenically unsaturated compound (C) other than the compound (A). The polyurethane compound (A) is obtained by reacting an epoxycarboxylate compound (c), which is obtained by reacting an epoxy compound (a) having two or more epoxy groups in a molecule with a monocarboxylic acid compound (b) having an ethylenically unsaturated group in a molecule, with a diisocyanate compound (d).

Abstract: The present invention relates to an optical disc having a cured product layer of an ultraviolet-curable resin composition containing (A) dicyclopentenyloxyethyl acrylate, (B) urethane (meth)acrylate and/or (C) epoxy (meth)acrylate, and (D) photopolymerization initiator, and a resin composition for the cured product layer thereof and a cured product therewith; and the optical disc of the present invention has less warping after curing and is excellent in transparency and durability and therefore suitable for next generation high density optical discs where recording and/or reproducing are performed using a blue laser; the resin composition for said cured product layer has less deterioration with age and less viscosity change in recycle and is suitable for a coating agent of optical discs and for efficient production of optical discs.

Abstract: Disclosed is an ultraviolet-curable resin composition containing a polyurethane compound (A), a photopolymerization initiator (B), and an ethylenically unsaturated compound (C) other than the compound (A). The polyurethane compound (A) is obtained by reacting an epoxycarboxylate compound (c), which is obtained by reacting an epoxy compound (a) having two or more epoxy groups in a molecule with a monocarboxylic acid compound (b) having an ethylenically unsaturated group in a molecule, with a diisocyanate compound (d).

Abstract: Disclosed is an adhesive which enables to obtain a bonded optical disk, wherein optical disks having a total reflection film or a translucent reflection film made of silver or a silver alloy are bonded together, which exhibits high adhesion strength between the reflection film and a cured product of the adhesive as well as between a polycarbonate substrate and the cured product of the adhesive, while having high durability equivalent to those of the conventional optical disks using translucent reflective film made of gold.