Abstract: The magnetic recording medium includes a non-magnetic support, and a magnetic layer containing a ferromagnetic powder in which the ferromagnetic powder is ?-iron oxide powder, and an anisotropic magnetic field Hk of the magnetic recording medium measured after pressing the magnetic layer at a pressure of 70 atm is 15,000 Oe to 40,000 Oe.

Abstract: Provided is a magnetic recording medium including: a non-magnetic support; and a magnetic layer including particles of at least one kind of epsilon type iron oxide-based compound selected from the group consisting of ?-Fe2O3 and a compound represented by Formula (1), an abrasive, and a binding agent, at least on one surface of the non-magnetic support, in which an average equivalent circle diameter of the particles of the epsilon type iron oxide-based compound is 7 nm to 18 nm, an average equivalent circle diameter of the abrasive in a plan view of the magnetic layer is 20 nm to 1,000 nm, and a coefficient of variation of the equivalent circle diameter of the abrasive is 30% to 60%. In Formula (1), A represents at least one kind of metal element other than Fe and a satisfies a relationship of 0<a<2. ?-AaFe2-aO3??(1).

Abstract: Provided is an ?-iron oxide type ferromagnetic powder with a ratio Hc173K/Hc296K between a coercive force Hc173K measured at a temperature of 173 K and a coercive force Hc296K measured at a temperature of 296 K is higher than 1.00 and less than 2.00, and a magnetic recording medium containing the ?-iron oxide type ferromagnetic powder in a magnetic layer.

Abstract: A method of producing a cell culture chip, in which a first adhesive is film-formed on a first substrate having transparency such that a first adhesive layer and a recessed portion on which one or more cell culture flow paths are formed face each other, and a second adhesive is film-formed on the first substrate such that a second adhesive layer and a flat portion around the recessed portion face each other, thereby obtaining a cell culture flow path substrate, the first adhesive containing a polyester-based resin having a glass transition temperature of 5° C. or higher, and the second adhesive containing a polyester-based resin having a glass transition temperature of lower than 5° C.

Abstract: Provided is a cladding composition which contains metal powder, a binder, and an organic solvent in a case of bonding a metal base material and a resin member to each other. Further, provided is a method for producing a metal/resin bonded member, including a step of coating at least a portion of a metal base material with the cladding composition; a step of irradiating the coated portion of the metal base material which has been coated with the cladding composition, with a laser; a step of disposing the resin member on the laser irradiation portion of the metal base material; and a step of heating an interface between the laser irradiation portion and the resin member so that the metal base material and the resin member are bonded to each other.

Abstract: The present invention provides an intestinal flora extraction vessel for extracting an intestinal flora from feces, the vessel including: a vessel main body with a first opening portion and a second opening portion formed therein, the vessel main body being configured so as to be deformable; an opening/closing mechanism configured to open/close the first opening portion of the vessel main body; a filter member accommodated in the vessel main body and partitioning the vessel main body into a first region located on the side of the first opening portion and a second region located on the side of the second opening portion, the filter member being configured to filter off the intestinal flora from the feces; and a communication member attached to the second opening portion, and configured to allow the second region to be in communication with the outside of the vessel main body.

Abstract: Magnetic powder includes: at least one epsilon-phase iron oxide-based compound selected from the group consisting of ?-Fe2O3 and a compound represented by Formula (1); and a surface treatment layer including a silane compound on at least a part of a surface. The magnetic powder has an average particle diameter of 8 nm to 20 nm. The content ratio of carbon atoms of the silane compound included in the surface treatment layer to iron atoms of the at least one epsilon-phase iron oxide-based compound selected from the group consisting of ?-Fe2O3 and the compound represented by Formula (1) is 0.05% to 0.5% in terms of the number of atoms. A manufacturing method thereof and applications thereof are also provided. In Formula (1), A represents at least one metal element other than Fe and a represents a number that satisfies a relationship of 0<a<2.

Abstract: A method for producing a chip for cell culture that enables production of a microchannel structure, enables mass production at low cost, and also has functions suited to cell culture. The method includes forming a photosensitive adhesive layer by applying a photosensitive adhesive to a first substrate having transparency, thus obtaining a 3D printing substrate, 3D printing steps that employ vat photopolymerization, forming a first adhesive layer by depositing a first adhesive on a second substrate having transparency, thus obtaining a cell culture channel top plate, and bonding the cell culture channel and the cell culture channel top plate together via the first adhesive layer, and then performing thermocompression bonding to obtain a microchannel structural body having a hollow structure, wherein the first adhesive is a polyester-based resin having a Tg value of 5° C. or higher.

Abstract: The magnetic recording medium includes a non-magnetic support; and a magnetic layer including a ferromagnetic powder, in which an anisotropic magnetic field Hk is more than 5.0 kOe and less than 7.5 kOe, an anisotropic magnetic field distribution is more than 0.75 and less than 1.20, the magnetic layer has a servo pattern, the ferromagnetic powder is a hexagonal strontium ferrite powder, and an average particle size of the hexagonal strontium ferrite powder is 9 nm to 20 nm.

Abstract: The magnetic recording medium includes a non-magnetic support; and a magnetic layer including a ferromagnetic powder, in which an anisotropic magnetic field distribution is 1.20 or less, and the ferromagnetic powder is ?-iron oxide powder.

Abstract: A method for manufacturing a flow path device internally provided with a flow path for allowing a liquid to flow by compression bonding two or more members to each other, in which the hydrophilic property of a surface of the flow path can be maintained for a long period of time. A flow path device is manufactured by forming a hydrophilic coating film using a treatment liquid including a hydrophilizing agent in at least one member, the coating film covering a surface of the member at a side to be joined to another member, then irradiating only a joining surface of the coating film with ultraviolet rays or plasma derived from an oxygen-containing gas in the member having the coating film, and irradiating at least the joining surface with ultraviolet rays or plasma derived from an oxygen-containing gas in a member having no coating film, and compression bonding the two or more members.

Abstract: An object of the present invention is to provide a magnetic recording medium, which contains ?-type iron oxide particles and has excellent SNR, a manufacturing method of ?-type iron oxide particles, and a manufacturing method of a magnetic recording medium. The object is achieved by a magnetic recording medium containing ?-type iron oxide particles, in which a coefficient of variation of an aspect ratio of the ?-type iron oxide particles is equal to or smaller than 18%, and a squareness ratio of the magnetic recording medium measured in a longitudinal direction of the magnetic recording medium is higher than 0.3 and equal to or lower than 0.5. The object is also achieved by the application of the magnetic recording medium.

Abstract: The ?-iron oxide type ferromagnetic powder contains Fe, a metal element selected from the group consisting of monovalent metal elements and divalent metal elements at a content rate within a range of 0.2 to 16.5 at % with respect to 100.0 at % of Fe, and a pentavalent metal element at a content rate within a range of 0.2 to 7.5 at % with respect to 100.0 at % of Fe, in which a total content rate of metal elements other than Fe is within a range of 2.5 to 24.0 at % with respect to 100.0 at % of Fe.

Abstract: A cutting insert has cutting edges having the same shape and provided at respective corners of a polygon in rotational symmetry about the center axis of the polygon, is clamped in an upright position to a holder, and has a negative side rake angle on a rake face of a side cutting edge. A side cutting edge is present at an intersection ridge between a polygonal face and an outer peripheral face. The outer peripheral face includes a rake face of the cutting edge and a flank of an end cutting edge of another cutting edge different from the side cutting edge. The flank has a positive slope angle in opposition to a negative side rake angle of the side cutting edge. A breaker groove extending in a front-rear direction is formed in the rake face and cuts into the flank, in such a manner as to divide the rake face.

Abstract: Provided is a powder of a ?-iron oxyhydroxide-based compound that is a group of particles of a ?3-iron oxyhydroxide-based compound represented by Formula (1) below; in which a surface of the particles of the ?-iron oxyhydroxide-based compound is modified with a surface modifier; in which, in a case where the powder is dispersed in water to be made into a sol, a zeta potential of the powder is equal to or higher than +5 mV at pH 10; and ?-AaFe1-aOOH??(1) in which, in Formula (1), A represents at least one metallic element other than Fe, and a represents a number that satisfies a relationship of 0?a<1.

Abstract: A light guide device includes a light guide plate that includes a first surface and a second surface facing the first surface in one of which plural light exit portions are provided, that guides light introduced into the light guide plate while reflecting the light between the first surface and the second surface, and that refracts or reflects the guided light so as to cause the light to exit by using the plural light exit portions. The light guide device has an introduction portion that is provided in the light guide plate and that introduces at least part of light incident upon the introduction portion in plural directions in a plane where the light is guided by the light guide plate.

Abstract: Provided are a magnetic recording medium including: a non-magnetic support; and a magnetic layer which is provided on at least one surface of the non-magnetic support and includes particles of epsilon type iron oxide-based compound, and a binding agent, in which a contact angle measured regarding a surface of the magnetic layer is equal to or greater than 30.0° and smaller than 45.0° with respect to 1-bromonaphthalene and 80.0° to 95.0° with respect to water, a manufacturing method of particles of an epsilon iron oxide-based compound, and a manufacturing method of a magnetic recording medium.

Abstract: Disclosed are a particle of a 13-iron oxyhydroxide-based compound represented by Formula (1), in which an average equivalent circle diameter of primary particles is 5 nm to 30 nm, and a coefficient of variation of equivalent circle diameters of the primary particles is 10% to 30% [In Formula (1), A represents at least one kind of metal element other than Fe, and a represents a number that satisfies a relationship of 0?a<1.], and applications thereof.

Abstract: The invention provides a core-shell particle which can provide, by being calcinated, epsilon type iron oxide-based compound particles that have a small coefficient of variation of primary particle diameter and show excellent SNR and running durability when employed in a magnetic recording medium as well as applications thereof. The core-shell particle includes: a core including at least one iron oxide selected from Fe2O3 or Fe3O4, or iron oxyhydroxide; and a shell that coats the core, the shell including a polycondensate of a metal alkoxide and a metal element other than iron, as well as applications thereof.

Abstract: Inclined surfaces are formed on a rake face and a recessed groove is formed in the central portion between the inclined surfaces. A groove width of the recessed groove gradually increases from the position of the end cutting edge toward the rear, then gradually decreases such that the recessed groove has a narrowest portion at a position P2 forward of the position P3 of an upper end of a breaker wall and rearward of a positive rake angle rear end position P1, and then gradually increases toward the rear up to the position P3 of the upper end of the breaker wall. The dimensional relation W1<W2<W3 holds, where W1 is the groove width at the end cutting edge, W2 is the groove width at the narrowest portion, and W3 is the groove width at the position P3 of the upper end of the breaker wall.