Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. The gel fraction of the photocurable composition is preferably 60% or more. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer is preferably 1×104 to 1.2×105 Pa. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer after photocuring is preferably 1.5×105 to 2×106 Pa.

Abstract: The vibrator element includes a base part, a vibrating arm extending from the base part, and a weight provided to the vibrating arm, wherein the weight includes a thick film part, a thin film part thinner in film thickness than the thick film part, and a connection part which is located between the thick film part and the thin film part to connect the thick film part and the thin film part to each other, and which forms a taper shape gradually decreasing in film thickness in a direction from the thick film part side toward the thin film part.

Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. A frictional force of the pressure sensitive adhesive layer measured with a frictional force microscope at a frequency of 5 Hz is preferably 2 to 5 times a frictional force at a frequency of 0.1 Hz. After photocuring of the pressure sensitive adhesive layer, a frictional force of a photocured pressure sensitive adhesive layer measured with the frictional force microscope at a frequency of 5 Hz is preferably not less than 5 times a frictional force measured at a frequency of 0.1 Hz.

Abstract: A processing mark that is thinned or removed in a thickness direction of a vibration arm is formed at a weight provided at a drive vibration arm of a vibration element, and including a pair of weight ends aligned in an extending direction of the vibration arm. The processing mark includes a first processing end and a second processing end aligned in the extending direction of the vibration arm, the first processing end overlaps one weight end of the weight in plan view in the extending direction of the vibration arm, and a width of the first processing end is smaller than a width of the second processing end.

Abstract: A frequency adjustment method of a vibration element includes adjusting a resonance frequency of the vibration element by irradiating the vibration element, which includes a vibrating arm having a first principal surface and a second principal surface that are in a front and back relationship with each other with an energy ray, to remove a part of the vibrating arm on the first principal surface, and in which an activation amount by the energy ray on the second principal surface of the vibrating arm is smaller than an activation amount by the energy ray on the first principal surface of the vibrating arm.

Abstract: The vibrator element includes a base part, a vibrating arm extending from the base part, and a weight provided to the vibrating arm, wherein the weight includes a thick film part, a thin film part thinner in film thickness than the thick film part, and a connection part which is located between the thick film part and the thin film part to connect the thick film part and the thin film part to each other, and which forms a taper shape gradually decreasing in film thickness in a direction from the thick film part side toward the thin film part.

Abstract: A method of manufacturing a vibrator device includes preparing a vibrator element including a vibrating arm and a weight provided to the vibrating arm, and irradiating the weight with a laser beam to remove apart of the weight. Further, in the step of irradiating the weight with the laser beam to remove the part of the weight, the part of the weight is irradiated with the laser beam to thereby provide the weight with a removed area where the part of the weight is removed, and an unremoved area where the weight is not removed, and in an area close to the unremoved area in the removed area, an amount of irradiation with the laser beam is gradually increased in a direction from the unremoved area side toward the removed area.

Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. A frictional force of the pressure sensitive adhesive layer measured with a frictional force microscope at a frequency of 5 Hz is preferably 2 to 5 times a frictional force at a frequency of 0.1 Hz. After photocuring of the pressure sensitive adhesive layer, a frictional force of a photocured pressure sensitive adhesive layer measured with the frictional force microscope at a frequency of 5 Hz is preferably not less than 5 times a frictional force measured at a frequency of 0.1 Hz.

Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. The gel fraction of the photocurable composition is preferably 60% or more. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer is preferably 1×104 to 1.2×105 Pa. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer after photocuring is preferably 1.5×105 to 2×106 Pa.

Abstract: A processing mark that is thinned or removed in a thickness direction of a vibration arm is formed at a weight provided at a drive vibration arm of a vibration element, and including a pair of weight ends aligned in an extending direction of the vibration arm. The processing mark includes a first processing end and a second processing end aligned in the extending direction of the vibration arm, the first processing end overlaps one weight end of the weight in plan view in the extending direction of the vibration arm, and a width of the first processing end is smaller than a width of the second processing end.

Abstract: A frequency adjustment method of a vibration element includes adjusting a resonance frequency of the vibration element by irradiating the vibration element, which includes a vibrating arm having a first principal surface and a second principal surface that are in a front and back relationship with each other with an energy ray, to remove a part of the vibrating arm on the first principal surface, and in which an activation amount by the energy ray on the second principal surface of the vibrating arm is smaller than an activation amount by the energy ray on the first principal surface of the vibrating arm.

Abstract: A vibrating element includes a base, a vibrating arm extending from the base, and having an arm section provided with an electrode film, and a weight section, a weight film provided to the weight section, and the vibrating arm has a first principal surface and a second principal surface in an obverse-reverse relationship, the electrode film and the weight film are disposed on the first principal surface and the second principal surface, and a thickness of the electrode film disposed on the first principal surface, a thickness of the weight film disposed on the first principal surface, a thickness of the electrode film disposed on the second principal surface, and a thickness of the weight film disposed on the second principal surface are each no less than 50 nm and no more than 500 nm.

Abstract: The present invention provides a pressure-sensitive adhesive (PSA) sheet that achieves both low initial adhesiveness and strong adhesiveness upon use and has excellent transparency of the PSA layer. The PSA sheet provided herein includes a PSA layer having a haze value of 1.0% or less. The PSA sheet is configured so that a pressure-sensitive adhesive strength N1, after the PSA layer is attached to a stainless steel plate and left at 23° C. for 30 minutes, is 1.5 N/20 mm or less, and a pressure-sensitive adhesive strength N2, after the PSA layer is attached to a stainless steel plate and heated at 80° C. for 5 minutes, is 10.0 N/20 mm or more.

Abstract: The present invention provides a pressure-sensitive adhesive (PSA) sheet that achieves, in the form having a support substrate, both low initial adhesiveness and strong adhesiveness during use. The PSA sheet provided in this application includes a support substrate and a PSA layer laminated on at least one side of the support substrate. The PSA layer has a thickness of 3 ?m or more but less than 100 ?m. The support substrate has a thickness of 30 ?m or more. The PSA sheet is configured so that a relationship between an elastic modulus Et? [MPa] of the PSA sheet and a thickness Ts [mm] of the support substrate fulfils the following formula: 0.1 [N·mm]<Et?×(Ts)3. The adhesive strength N2 after the PSA layer is attached to a stainless steel plate (SUS304BA plate) and heated at 80° C. for 5 minutes is 20 times or more of an adhesive strength N1 after the PSA layer is attached to a stainless steel plate (SUS304BA plate) and left at 23° C. for 30 minutes.

Abstract: An inner deckle for a die includes a shaft-shaped deckle main body and a sheet- or film-shaped deckle auxiliary portion extending from the deckle main body. The inner deckle is arranged at each end of a die. The die includes a die piece and is formed with a manifold and a slit. The deckle main body includes a seal reinforcing portion. A liquid material is supplied into the manifold. The seal reinforcing portion includes at least one sealing member having two or more films. The films slide and are simultaneously elastically deformed against an inner wall of the manifold when a position of the inner deckle is moved with respect to the die. The films cooperate with each other and are closely attached to the inner wall by an elastic restoring force when the position of the inner deckle is fixed with respect to the die.

Abstract: A digital camera includes a first optical system including a first optical axis; a second optical system including a second optical axis which is different from the first optical axis; a first image sensor and a second image sensor for detecting subject images; and a controller for performing focus control on each optical system and for instructing each image sensor to execute shooting operation. The controller instructs the first image sensor and the second image sensor to execute shooting operation at a first timing when the focus operation for the first optical system is finished or a second timing when the focus operation for the second optical system is finished, which is later.

Abstract: Provided is a surface protective film including, as an outermost layer, a pressure-sensitive adhesive layer containing a urethane-based pressure-sensitive adhesive as a main component, the surface protective film allowing the contamination of an adherend to be extremely suppressed, and being preferably excellent in wettability and reworkability. The surface protective film of the present invention includes, as an outermost layer, a pressure-sensitive adhesive layer containing, as a main component, a urethane-based pressure-sensitive adhesive containing a polyurethane-based resin; and when a pressure-sensitive adhesive layer side of the surface protective film is attached to a glass plate at 50° C. for 10 days and then the surface protective film is peeled from the glass plate, a residual adhesive strength on the peeled surface side of the glass plate is 3.0 N/19 mm or more.

Abstract: Provided is a urethane-based pressure-sensitive adhesive that is extremely excellent in adhesive residue-preventing property. Also provided is a surface protective film using such urethane-based pressure-sensitive adhesive in its pressure-sensitive adhesive layer, the surface protective film being extremely excellent in adhesive residue-preventing property. Also provided is an optical member or electronic member to which such surface protective film is attached. The urethane-based pressure-sensitive adhesive is a urethane-based pressure-sensitive adhesive including a polyurethane-based resin, in which: the polyurethane-based resin includes a polyurethane-based resin obtained by curing a composition containing a polyol (A) and a polyfunctional isocyanate compound (B); and the polyurethane-based resin contains a deterioration-preventing agent.

Abstract: An inner deckle for a die includes a shaft-shaped deckle main body and a sheet- or film-shaped deckle auxiliary portion extending from the deckle main body. The inner deckle is arranged at each end of a die. The die includes a die piece and is formed with a manifold and a slit. The deckle main body includes a seal reinforcing portion. A liquid material is supplied into the manifold. The seal reinforcing portion includes at least one sealing member having two or more films. The films slide and are simultaneously elastically deformed against an inner wall of the manifold when a position of the inner deckle is moved with respect to the die. The films cooperate with each other and are closely attached to the inner wall by an elastic restoring force when the position of the inner deckle is fixed with respect to the die.

Abstract: A urethane-based pressure-sensitive adhesive including a polyurethane-based resin, in which: the polyurethane-based resin includes a polyurethane-based resin obtained by curing a composition containing a polyol (A) and a polyfunctional isocyanate compound (B); and the polyol (A) contains a polyol (A1) having 3 OH groups and a number-average molecular weight Mn of 8,000 to 20,000. The urethane-based pressure-sensitive adhesive is excellent in reworkability, initial wettability, and transparency, and is preferably excellent in adhesive residue-preventing property, that preferably has a large wetting rate, and that is preferably prevented from showing external appearance unevenness due to orange peel. Also provided is a surface protective film using such urethane-based pressure-sensitive adhesive in its pressure-sensitive adhesive layer. Further provided is an optical member or electronic member to which such surface protective film is attached.