Abstract: An inductor includes a magnetic sheet and a conductive portion. The magnetic sheet has a penetration hole. The penetration hole is along a thickness direction. The penetration hole is open toward one side and the other side in the thickness direction. The magnetic sheet contains a cured resin and magnetic particles. The conductive portion is filled in the penetration hole. The conductive portion is along the thickness direction of the magnetic sheet.

Abstract: The present switch device includes a glass layer made of tempered glass and a switch portion arranged at the back surface of the glass layer. The thickness of the glass layer is 100 ?m or more and 200 ?m or less. The switch portion includes a plurality of contacts that include a vertically movable contact. In response to pressing of the glass layer, the glass layer elastically deforms, thereby performing switching of the plurality of contacts between being in a conductive state and in a non-conductive state.

Abstract: Provided is a method for preparing a PSA composition for protecting Low-E glass plates from degradation and corrosion. A PSA composition preparation method is provided for Low-E glass plate protection. The method comprises a step of obtaining an aqueous liquid, and a step of obtaining a polymer containing liquid comprising the aqueous liquid and a polymer. Here, the aqueous liquid satisfies at least (a) having an electrical conductivity below 300 ?S/cm or (b) having a chloride ion concentration below 35 ?g/mL.

Abstract: This optical member has a first layer with a porous structure, the first layer includes a first area with the porous structure and a second area in which the pores of the porous structure are filled with a resin composition, the second area includes a plurality of discretely arranged island-like areas, and when the area ratio of the first layer occupied by the second area is denoted by P % and the haze value of the first layer is denoted by H %, H/P is less than 0.20.

Abstract: Provided is a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer containing an acrylic pressure-sensitive adhesive, the pressure-sensitive adhesive sheet being excellent in characteristics under high temperature and optimum for temporary fixing of an electronic part. A pressure-sensitive adhesive sheet for temporarily fixing an electronic part of the present invention includes a pressure-sensitive adhesive layer containing an acrylic pressure-sensitive adhesive. The acrylic pressure-sensitive adhesive contains an acrylic polymer, and the pressure-sensitive adhesive layer has a coefficient of thermal expansion at from 200° C. to 210° C. of from 1×10?5/K to 500×10?5/K. In one embodiment, the pressure-sensitive adhesive layer has a coefficient of thermal expansion at from 230° C. to 240° C. of from 1×10?5/K to 500×10?5/K.

Abstract: A wiring circuit board includes a metal supporting layer, an insulating base layer, and a wiring layer. The wiring circuit board further includes a plurality of streak groove portions disposed on one surface of the metal supporting layer in the thickness direction and a plurality of concave portions depressed in the metal supporting layer in the thickness direction. The plurality of concave portions forms a dot pattern. Each of the dots in the dot pattern has one concave surface. The concave surface has an approximately spherical cap shape or an approximately cone shape.

Abstract: Provided is an opto-electric transmission composite module capable of efficiently dissipating heat of an opto-electric conversion portion, which includes an opto-electric hybrid board configured to be optically and electrically connected to an opto-electric conversion portion and including an optical waveguide and an electric circuit board in order toward one side in a thickness direction; a printed wiring board electrically connected to the electric circuit board; a heat dissipating layer; and a casing made of metal, the casing accommodating the opto-electric hybrid board, the printed wiring board, and the heat dissipating member, the casing including a first wall are provided. The first wall, the heat dissipating layer, a portion of the printed wiring board, and the opto-electric hybrid board are disposed in order toward one side in the thickness direction. The heat dissipating layer is in contact with the first wall and the printed wiring board.

Abstract: Provided is an optical laminate in which optical defects is less likely to occur when used in an optical device such as a display. A laminate (101) includes a flexible glass film (10) having a thickness of 150 ?m or less and a resin film (20) laminated on the glass film with an adhesive layer (50) interposed therebetween. The number of contaminants having a size of 100 ?m or more in the adhesive layer is preferably 10/m2 or less. When the contaminants protrude from the surface of the adhesive layer (50), the height and inclination angle of protrusions is preferably small.

Abstract: Provided is a pressure-sensitive adhesive sheet that may be used for the grinding of a hard and brittle substrate in a backgrinding step for the hard and brittle substrate, the pressure-sensitive adhesive sheet being excellent in all of grinding accuracy, low contamination property, productivity, and fixing property. The pressure-sensitive adhesive sheet of the present invention includes a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer contains: a pressure-sensitive adhesive containing a base polymer; and a foaming agent having a foaming temperature of 90° C. or more, and wherein the pressure-sensitive adhesive sheet has, when a pressure-sensitive adhesive surface thereof is bonded to a silicon chip, a shear adhesive strength of 1.0 MPa or more under an ambient temperature of 25° C., and a shear adhesive strength of 0.2 MPa or more under an ambient temperature of 80° C.

Abstract: An optical filter (10) comprises a matrix (12) and fine particles (14) dispersed in the matrix (12), wherein the fine particles (14) have a parameter Ds of 8.0 to 30 inclusive, Ds being determined by a USAXS pattern and given by Ds=?/(B·cos ?·Ra), where ? is the X-ray wavelength, ? is one half the scattering angle 2?(rad) providing a scattering intensity peak, B is the half width (FWHM, rad) of the peak, and Ra is the average particle size of the fine particles (14).

Abstract: A plastic optical fiber includes: a core; and a cladding disposed on an outer circumference of the core. The cladding includes a fluorine-containing resin including: a fluorine-containing polymer; and a fluorine-containing plasticizer, the fluorine-containing polymer having an amorphous structure, the fluorine-containing polymer including a structural unit (A) represented by the following formula (1): where Z represents an oxygen atom, a single bond, or —OC(R11R12)O—; R1 to R12 each independently represent a fluorine atom, a perfluoroalkyl group having 1 to 5 carbon atoms, or a perfluoroalkoxy group having 1 to 5 carbon atoms; one or some of the fluorine atoms are each optionally substituted; s and t are each independently 0 to 5; and s+t is an integer of 1 to 6 or, in the case where Z is —OC(R11R12)O—, s+t is optionally 0; and u and v are each independently 0 or 1.

Abstract: An elliptically polarizing plate includes a polarizing plate including a polarizer having a thickness of 15 ?m or more and transparent protective films disposed on both principal surfaces of the polarizer. A retardation layer is bonded onto one protective film of the polarizing plate. The elliptically polarizing plate is a sized piece having an irregular shape that is not a rectangle in plan view. An angle between an absorption axis direction of the polarizer and a slow axis direction of the retardation layer is 10 to 80°. The retardation layer satisfies Re(450)<Re(550)<Re(650), wherein Re(450) represents a front retardation at a wavelength of 450 nm, Re(550) represents a front retardation at a wavelength of 550 nm, and Re(650) represents a front retardation at a wavelength of 650 nm, and the retardation layer includes at least one aligned liquid crystal layer in which liquid crystal molecules are homogeneously-aligned.

Abstract: An optical element-including opto-electric hybrid board includes an opto-electric hybrid board including an optical waveguide and an electric circuit board in order toward one side in a thickness direction, an optical element mounted on the electric circuit board at one side in the thickness direction of the opto-electric hybrid board, and a bonding member interposed between the optical element and the electric circuit board so as to bond the optical element to the electric circuit board. A thermal expansion coefficient of the bonding member is 80 ppm or less.

Abstract: A purification system is for purifying a mixture containing a first solvent, a second solvent, and an impurity. The purification system includes a first membrane separation device including a pervaporation membrane and a second membrane separation device including a filtration membrane. The pervaporation membrane separates the mixture into a first permeated fluid and a first concentrated fluid. The first permeated fluid has a lower concentration of the impurity than that in the mixture, and the first concentrated fluid has a higher concentration of the impurity than that in the mixture. The filtration membrane separates the first concentrated fluid into a second permeated fluid and a second concentrated fluid. The second permeated fluid has a lower concentration of the impurity than that in the first concentrated fluid, and the second concentrated fluid has a higher concentration of the impurity than that in the first concentrated fluid.

Abstract: A wiring circuit board includes two insulating layers, a wiring layer, a pad portion, and a conductive connection portion. The wiring layer is on one side in a thickness direction of the first insulating layer, and has a contact portion. The second insulating layer is on one side in the thickness direction of the first insulating layer to cover the wiring layer. The pad portion is on one side in the thickness direction of the second insulating layer. The second insulating layer has a through opening portion and having an opening along at least a part of a peripheral end portion of the pad portion. The contact portion of the wiring layer faces the through opening portion. The conductive connection portion, is connected to at least the peripheral end portion of the pad portion, and the contact portion, and electrically connects the wiring layer to the pad portion.

Abstract: There is provided an optical laminate having an excellent light extraction function. The optical laminate includes: a light extraction layer having a first main surface and a second main surface, and having a light extraction mechanism including a recessed portion arranged on any one of the first main surface or the second main surface; a first cover sheet laminated via a first pressure-sensitive adhesive layer on a main surface side of the light extraction layer on which the light extraction mechanism is arranged; and a second cover sheet laminated via a second pressure-sensitive adhesive layer on a main surface side of the light extraction layer on which the light extraction mechanism is prevented from being arranged. The optical laminate has a region having a refractive index lower than a refractive index of the first pressure-sensitive adhesive layer or the second pressure-sensitive adhesive layer arranged on any one of a first main surface side or a second main surface side of the light extraction layer.

Abstract: A wiring circuit board includes a base insulating layer; a first wiring disposed on the base insulating layer; an intermediate insulating layer disposed on the base insulating layer so as to cover the first wiring; a second wiring disposed on the intermediate insulating layer; a single layer first terminal, disposed on the base insulating layer, and electrically connected to the first wiring; and a single layer second terminal, disposed on the base insulating layer, and electrically connected to the second wiring. The first terminal is continuous with the first wiring. The second terminal is discontinuous from the second wiring. The wiring circuit board further includes a connecting portion disposed on the base insulating layer and continuous with the second terminal to electrically connect to the second wiring.

Abstract: The present invention provides a production method for a ?-1,3-glucan derivative, which is suitable for reducing a load on the environment. A production method for a ?-1,3-glucan derivative according to present invention includes performing an esterification reaction of ?-1,3-glucan at a temperature of 40° C. to 120° C. in the presence of an acid catalyst. In the production method for a ?-1,3-glucan derivative, for example, the esterification reaction is performed by bringing the ?-1,3-glucan into contact with acid anhydride.

Abstract: An optical laminate includes: a polarizing plate including a polarizing film having a first main surface and a second main surface opposed to each other; a first pressure-sensitive adhesive layer arranged on the first main surface side of the polarizing film; and a second pressure-sensitive adhesive layer arranged on the second main surface side of the polarizing film. At least one of the first pressure-sensitive adhesive layer or the second pressure-sensitive adhesive layer has a haze of 66% or more. The polarizing film includes a polyvinyl alcohol-based film containing iodine and contains a compound including a nitroxy radical or a nitroxide group.

Abstract: A wiring circuit board includes a base insulating layer, a conductive layer, and a metal protective film in order toward one side in a thickness direction. The conductive layer includes a signal wiring and a terminal continuous therewith. The signal wiring has one surface in the thickness direction, and first and second surfaces continuous with the one surface and disposed to face each other in a width direction. The terminal has one surface in the thickness direction, and the other surface disposed to face the one surface at the other side in the thickness direction at spaced intervals thereto. The other surface of the terminal is exposed from the base insulating layer toward the other side in the thickness direction. The metal protective film covers the one surface of the signal wiring and one surface of the terminal but not both first or second surfaces.