Abstract: A smoke detector includes: a casing; a first light emitting unit; a second light emitting unit; and a light receiving unit. A second scattering angle that is an angle between the reception axis of the light receiving unit and a second extension extending from an intersection of the second emission axis and the reception axis in a direction away from the second light emitting unit is larger than a first scattering angle that is an angle between the reception axis of the light receiving unit and a first extension extending from an intersection of the first emission axis and the reception axis in a direction away from the first light emitting unit.

Abstract: A graphene dispersion liquid containing graphene and a solvent, wherein the graphene has an average thickness of 0.3 nm or more and 10 nm or less, wherein the solvent has a solubility parameter ? of 18 MPa0.5 or more and 28 MPa0.5 or less, and wherein the graphene dispersion liquid has a viscosity of 10,000 mPa·s or less at a graphene concentration adjusted to 3 weight %, at a shear rate of 10 sec?1, and at a temperature of 25° C. Provided are: a graphene dispersion liquid that has excellent fluidity and dispersibility, and affords a coating film having excellent coating film uniformity; and a positive electrode paste that makes it possible to enhance the coating film uniformity and the battery life by virtue of the graphene dispersion liquid.

Abstract: A solid-state battery package that includes: a substrate; a solid-state battery on the substrate; and a water vapor barrier layer between the substrate and the solid-state battery. The water vapor barrier layer preferably has both an Si—O bond and an Si—N bond, and preferably has a water vapor transmission rate of less than 5×10?3 g/(m2·Day).

Abstract: A medical device including a silicone hydrogel which is less likely to harden due to drying, and which is less likely to cause stimulation at a site in contact with a human body, is disclosed. The medical device includes a silicone hydrogel satisfying the following conditions: (1) the water content in hydrous state is within the range of 10% by mass to 70% by mass; (2) the content of silicon atoms with respect to the total mass in dry state is within the range of 8% by mass to 30% by mass; and (3) the tensile elastic modulus in dry state is within the range of 0.1 MPa to 3.5 MPa.

Abstract: An object of the present invention is to provide a silica particle having excellent polishing characteristics and storage stability, a method for producing the silica particle, a silica sol containing the silica particles, and a polishing composition containing the silica sol. Another object of the present invention is to provide a polishing method, a method for producing a semiconductor wafer, and a method for producing a semiconductor device, which are excellent in productivity of an object to be polished. The silica particle in the present invention satisfies formula (1): y?4.2 where a d value measured by wide-angle X-ray scattering is y ?.

Abstract: A packaged solid-state battery that includes a solid-state battery having a top surface, a bottom surface, and side surfaces connecting the top surface to the bottom surface; a supporting substrate supporting the bottom surface of the solid-state battery; an insulating cover layer covering at least the top surface and the side surfaces of the solid-state battery; and an inorganic cover film on the insulating cover layer.

Abstract: An all-solid-state battery that includes a power storage part having a positive electrode layer, a negative electrode layer, and an electrolyte layer interposed between the positive electrode layer and the negative electrode layer; an internal electrode at an end surface of the power storage part; an electrode extraction part electrically connected to the internal electrode; a buffer layer covering the power storage part, the internal electrode, and a first part of the electrode extraction part; a barrier layer covering the buffer layer; and an impact-resistant layer covering the barrier layer such that a second part of the electrode extraction part extends from the impact-resistant layer.

Abstract: An all-solid-state battery that includes a battery element and an exterior material covering a surface of the battery element, wherein the exterior material includes one or more glass state materials and one or more crystalline state materials.

Abstract: A solid-state battery that includes: a solid-state battery main portion having a positive electrode layer and a negative electrode layer alternatively stacked with a solid electrolyte layer interposed therebetween; a first end surface electrode electrically connected to the positive electrode layer and disposed on a first side surface of the solid-state battery main portion; a second end surface electrode electrically connected to the negative electrode layer and disposed on a second side surface of the solid-state battery main portion; a first lower surface electrode electrically connected to the first end surface electrode and disposed on a lower surface side of the solid-state battery main portion; and a second lower surface electrode electrically connected to the second end surface electrode and disposed on the lower surface side of the solid-state battery main portion.

Abstract: A wireless rechargeable solid-state battery module includes a solid-state battery; an internal structure including an internal circuit electrically connected with the battery; positive and negative electrode terminals, each of which is electrically connected with the solid-state battery, is exposed on an outer surface, and is where the positive or negative electrode terminal can be mounted on an electronic circuit board; barrier layers that entirely or partially contain a conductor and isolate the battery and the internal structure from an outside air environment; and a power receiving terminal electrically connected with an external circuit, which includes a power receiving coil coupled with an external electromagnetic or magnetic field, is electrically connected with the internal circuit, and is in an outside of the barrier layers.

Abstract: A wireless rechargeable solid-state battery module includes a solid-state battery; internal structures that are provided with an internal circuit electrically connected with the solid-state battery; a barrier layer that isolates the solid-state battery from an outside air environment; and a positive electrode terminal and a negative electrode terminal each of which is electrically connected with the solid-state battery, is exposed on an outer surface, and is arranged so that the positive electrode terminal or the negative electrode terminal can be mounted on a mounting board. The internal circuit includes a wireless charging circuit that receives power from an outside via an electromagnetic field or a magnetic field produced by power transmission from the outside and controls charging to the solid-state battery.

Abstract: A conductive sheet comprising a conductive substrate layer and a hydrogel layer formed of a silicone hydrogel having a polymer comprising a repeat unit (A) derived from a monomer represented by Formula (I) as a gel skeleton. Provided is a conductive sheet which can maintain adhesiveness and flexibility even when used for a long period of time and can attain high biocompatibility.

Abstract: A smoke detector includes: a casing; a first light emitting unit; a second light emitting unit; and a light receiving unit. A second scattering angle that is an angle between the reception axis of the light receiving unit and a second extension extending from an intersection of the second emission axis and the reception axis in a direction away from the second light emitting unit is larger than a first scattering angle that is an angle between the reception axis of the light receiving unit and a first extension extending from an intersection of the first emission axis and the reception axis in a direction away from the first light emitting unit.

Abstract: Disclosed is a medical device including a substrate and a polymer layer, wherein the polymer layer is provided on at least a part of a surface of the substrate and satisfies the following requirements: (a) a water content of the medical device in hydrated state is in a range of 28% by mass or more and 50% by mass or less; (b) the substrate has a 2-alkoxyethyl group; and (c) the polymer layer contains one type of a carboxylic acid group-containing polymer and one type of a copolymer having an amide structure. The present invention provides a medical device capable of maintaining surface wettability for a long time.

Abstract: A battery that includes a substrate, a solid-state battery on the substrate, and a circuit for the solid-state battery on the substrate.

Abstract: An object of the present invention is to provide a silica particle having excellent polishing characteristics and storage stability. The present invention relates to a silica particle in which a proportion of silanol groups present on a surface represented by (x/y)×100% is 15% or less, where a content of silanol groups on the surface is x mass % and a content of bulk silanol groups is y mass %.

Abstract: A solid battery including a positive electrode layer; a negative electrode layer; a current collecting layer; a solid electrolyte layer; and an insulating layer. Each of the positive electrode layer, the negative electrode layer, the current collecting layer, the solid electrolyte layer, and the insulating layer contains a material having a glass transition point of 500° C. or less in an amount of 10 vol % to 60 vol %, and among contents of the material having a glass transition point of 500° C. or less in each of the positive electrode layer, the negative electrode layer, the current collecting layer, the solid electrolyte layer, and the insulating layer, a difference between a maximum content and a minimum content is 30 vol % or less.

Abstract: An object of the present invention is to provide a silica particle having excellent polishing characteristics and storage stability, a method for producing the silica particle, a silica sol containing the silica particles, and a polishing composition containing the silica sol. Another object of the present invention is to provide a polishing method, a method for producing a semiconductor wafer, and a method for producing a semiconductor device, which are excellent in productivity of an object to be polished. The silica particle in the present invention satisfies formula (1): y?4.2 where a d value measured by wide-angle X-ray scattering is y ?.

Abstract: A solid battery including a positive electrode layer; a negative electrode layer; a current collecting layer; a solid electrolyte layer; and an insulating layer. Each of the positive electrode layer, the negative electrode layer, the current collecting layer, the solid electrolyte layer, and the insulating layer contains a material having a glass transition point of 500° C. or less in an amount of 10 vol % to 60 vol %, and among contents of the material having a glass transition point of 500° C. or less in each of the positive electrode layer, the negative electrode layer, the current collecting layer, the solid electrolyte layer, and the insulating layer, a difference between a maximum content and a minimum content is 30 vol % or less.

Abstract: A packaged solid-state battery that includes a solid-state battery having a top surface, a bottom surface, and side surfaces connecting the top surface to the bottom surface; a supporting substrate supporting the bottom surface of the solid-state battery; an insulating cover layer covering at least the top surface and the side surfaces of the solid-state battery; and an inorganic cover film on the insulating cover layer.