Abstract: An object is to provide a macromolecular composite material that can be produced by a simple process, and that has excellent mechanical properties. The macromolecular composite material of the present invention contains a polymer component and a cyclodextrin compound, the polymer component containing a thermoplastic resin, and the cyclodextrin compound being at least one member selected from the group consisting of cyclodextrin and cyclodextrin derivatives. The macromolecular composite material of the present invention can be produced by a simple process, and has excellent mechanical properties.

Abstract: An object is to provide a macromolecular composite material that can be produced by a simple process, and that has excellent mechanical properties. The macromolecular composite material of the present invention contains a polymer component and a cyclodextrin compound, the polymer component containing a thermoplastic resin, and the cyclodextrin compound being at least one member selected from the group consisting of cyclodextrin and cyclodextrin derivatives. The macromolecular composite material of the present invention can be produced by a simple process, and has excellent mechanical properties.

Abstract: An optical recording medium includes a light-receiving surface that receives incident light and at least three information signal layers on which information signals are to be optically recorded. Among the at least three information signal layers, the information signal layer closest to the light-receiving surface has a reflectance in a range of 4% to 11%.

Abstract: An optical recording medium includes a plurality of information signal layers on which information signals are to be optically recorded. Among the plurality of information signal layers, the information signal layer closest to the light-receiving surface has a reflectance of more than 4%.

Abstract: An optical recording medium includes a plurality of information signal layers on which information signals are to be optically recorded. Among the plurality of information signal layers, the information signal layer closest to the light-receiving surface has a reflectance of more than 4%.

Abstract: There is provided an optical recording medium including: three reproduction layers, wherein reflectance R1, R2, and R3 of the three reproduction layers on a side of a surface irradiated with reproduction light is equal to or greater than 5%, and wherein any absolute value of a difference delta R between two selected from the reflectance R1, R2, and R3 is equal to or less than 7%.

Abstract: An optical recording medium includes a plurality of information signal layers on which information signals are to be optically recorded. Among the plurality of information signal layers, the information signal layer closest to the light-receiving surface has a reflectance of more than 4%.

Abstract: There is provided an optical recording medium including: three reproduction layers, wherein reflectance R1, R2, and R3 of the three reproduction layers on a side of a surface irradiated with reproduction light is equal to or greater than 5%, and wherein any absolute value of a difference delta R between two selected from the reflectance R1, R2, and R3 is equal to or less than 7%.

Abstract: The present technology relates to an optical recording medium for realizing an optical recording medium capable of high-capacity recording. A groove and a land are formed, the groove being concave and the land being convex when seen from a side of a laser light incident surface, both of the groove and the land being recording tracks where recording or reproduction of information is performed. According to this recording layer, a pitch between the groove and the land that are adjacent recording tracks is within a range of 250 nm to 200 nm. Moreover, recording or reproduction of information is performed with respect to the recording tracks by irradiation of laser light whose wavelength is 400 nm to 415 nm by an optical system whose NA is 0.85±0.1.

Abstract: An information recording medium includes a plurality of wobbled tracks, in which a phase mismatch range of an adjacent wobble is a portion of a range of one track.

Abstract: There is provided a recording medium including: simple tracks each configured of arranged pits or arranged marks; and grooved tracks each configured of pits or marks and grooves, the grooves being inserted between the pits or between the marks. The simple tracks and the grooved tracks are arranged alternately in a radial direction at a track pitch of 0.27 micrometers or smaller.

Abstract: The present technology relates to an optical recording medium for realizing an optical recording medium capable of high-capacity recording. A groove and a land are formed, the groove being concave and the land being convex when seen from a side of a laser light incident surface, both of the groove and the land being recording tracks where recording or reproduction of information is performed. According to this recording layer, a pitch between the groove and the land that are adjacent recording tracks is within a range of 250 nm to 200 nm. Moreover, recording or reproduction of information is performed with respect to the recording tracks by irradiation of laser light whose wavelength is 400 nm to 415 nm by an optical system whose NA is 0.85±0.1.

Abstract: An information recording medium includes a plurality of wobbled tracks, in which a phase mismatch range of an adjacent wobble is a portion of a range of one track.

Abstract: The present technology relates to an optical recording medium for realizing an optical recording medium capable of high-capacity recording. A groove and a land are formed, the groove being concave and the land being convex when seen from a side of a laser light incident surface, both of the groove and the land being recording tracks where recording or reproduction of information is performed. According to this recording layer, a pitch between the groove and the land that are adjacent recording tracks is within a range of 250 nm to 200 nm. Moreover, recording or reproduction of information is performed with respect to the recording tracks by irradiation of laser light whose wavelength is 400 nm to 415 nm by an optical system whose NA is 0.85±0.1.

Abstract: A stamper production method includes: a stamper forming step of producing, by electroplating processing using a matrix in which a pit string constituted of a concave pit is formed on an inorganic resist layer based on recording information, a stamper on which a convex pit corresponding to the concave pit is formed; and an etching step of carrying out etching processing on the stamper so that a reduction ratio of a pit height of a short pit becomes larger than that of a long pit regarding the convex pit of the stamper.

Abstract: A stamper production method includes: a stamper forming step of producing, by electroplating processing using a matrix in which a pit string constituted of a concave pit is formed on an inorganic resist layer based on recording information, a stamper on which a convex pit corresponding to the concave pit is formed; and an etching step of carrying out etching processing on the stamper so that a reduction ratio of a pit height of a short pit becomes larger than that of a long pit regarding the convex pit of the stamper.

Abstract: An optical-disc manufacturing method including the steps of: fabricating a pre-exposure disc master by forming, on a substrate, a heat accumulation layer having a thickness of 17% or less of a recording-laser wavelength and forming an inorganic resist layer; performing exposure of a recording-signal pattern having pits and spaces with respect to the inorganic resist layer of the disc master, by performing recording-laser light irradiation; fabricating a disc master having a pit-array shape having pits and spaces, by performing development processing after the exposure; manufacturing a stamper to which the pit-array shape is transferred, by using the disc master having the pit-array shape; and manufacturing an optical disc having a predetermined layer structure including a recording layer to which the pit-array shape of the stamper is transferred and in which a silver or silver-alloy reflective film is formed on the pit-array shape.

Abstract: The present invention relates to a multi-layer structure constructed of two or more layers including a potassium ionomer layer (X) having a low surface resistivity and a layer (Y) comprising a polymer material having a high surface resistivity like LLDPE as a surface layer, where the static charge decay characteristics of the layer (Y) is improved. This type of two layer or three layer structure having the layer (X) as its intermediate layer or another surface layer gives good slip characteristics, abrasion resistance, and dust-free characteristics, and hence is useful for packaging materials, such as films, sheets and containers.

Abstract: An apparatus for automatically transferring a desired one of bacterial colonies grown in a medium in a culture Petri dish onto a medium in a test Petri dish or a test tube by using a bacterial colony pick-up/transfer element of the disposable type or a bacterial colony pick-up/transfer element of the reuse type and by using various mechanisms controlled by a computer.

Abstract: A light beam scanning apparatus projects a light beam swept by a light scanner to a spherical mirror and scans by a light beam spot reflected and focused by the spherical mirror a surface of an object arranged to oppose to the spherical mirror at a position spaced from the spherical mirror by a distance equal to a focal distance f of the spherical mirror. An optical path length between the light scanner and the spherical mirror is set to 0.78 f-0.84 f to minimize a curvature of field (circle of confusion).