Abstract: A center-foldable seat back has a seat back upper part that can be tilted forward relative to a seat back lower part. A trim cover is provided, sewn along the entire periphery at the mutual contact position of an upper and lower cover, the pulled-in state is modulated by cloth pieces, thereby preventing wrinkles. The seat back is provided with the trim cover in which one cloth piece one side edge of which is sewn to the ends of the lower and upper cover is provided at least in the central portion on the inside of the trim cover, the cloth piece is extended inward, the other side edge thereof is sewn to a fastener, the central portion on the back side is extended inward and sewn to the fastener, and the central portion on the inside of the trim cover is sewn to open and close by one fastener.

Abstract: A center-foldable seat back has a seat back upper part that can be tilted forward relative to a seat back lower part. A trim cover is provided, sewn along the entire periphery at the mutual contact position of an upper and lower cover, the pulled-in state is modulated by cloth pieces, thereby preventing wrinkles. The seat back is provided with the trim cover in which one cloth piece one side edge of which is sewn to the ends of the lower and upper cover is provided at least in the central portion on the inside of the trim cover, the cloth piece is extended inward, the other side edge thereof is sewn to a fastener, the central portion on the back side is extended inward and sewn to the fastener, and the central portion on the inside of the trim cover is sewn to open and close by one fastener.

Abstract: A center-foldable seat back has a seat back upper part that can be tilted forward relative to a seat back lower part. A trim cover is provided, sewn along the entire periphery at the mutual contact position of an upper and lower cover, the pulled-in state is modulated by cloth pieces, thereby preventing wrinkles. The seat back is provided with the trim cover in which one cloth piece one side edge of which is sewn to the ends of the lower and upper cover is provided at least in the central portion on the inside of the trim cover, the cloth piece is extended inward, the other side edge thereof is sewn to a fastener, the central portion on the back side is extended inward and sewn to the fastener, and the central portion on the inside of the trim cover is sewn to open and close by one fastener.

Abstract: A center-foldable seat back has a seat back upper part that can be tilted forward relative to a seat back lower part. A trim cover is provided, sewn along the entire periphery at the mutual contact position of an upper and lower cover, the pulled-in state is modulated by cloth pieces, thereby preventing wrinkles. The seat back is provided with the trim cover in which one cloth piece one side edge of which is sewn to the ends of the lower and upper cover is provided at least in the central portion on the inside of the trim cover, the cloth piece is extended inward, the other side edge thereof is sewn to a fastener, the central portion on the back side is extended inward and sewn to the fastener, and the central portion on the inside of the trim cover is sewn to open and close by one fastener.

Abstract: An optical disc has a data layer including a data-layer substrate made of a transparent material and a data-layer reflection film formed on an upper side of the data-layer substrate, a display layer including a display-layer substrate having a display pattern and a display-layer reflection film formed on a lower side of the display-layer substrate, and an intermediate layer made of a transparent material provided between an upper side of the data layer and a lower side of the display layer. The data- and display-layer reflection films exhibit specific reflectivity to allow the display pattern to be visible from a lower side of the data-layer substrate through the data-layer reflection film.

Abstract: An optical disc has a data layer including a data-layer substrate made of a transparent material and a data-layer reflection film formed on an upper side of the data-layer substrate, a display layer including a display-layer substrate having a display pattern and a display-layer reflection film formed on a lower side of the display-layer substrate, and an intermediate layer made of a transparent material provided between an upper side of the data layer and a lower side of the display layer. The data- and display-layer reflection films exhibit specific reflectivity to allow the display pattern to be visible from a lower side of the data-layer substrate through the data-layer reflection film.

Abstract: A cushion for a seat of good appearance.

Abstract: A center-foldable seat back has a seat back upper part that can be tilted forward relative to a seat back lower part. A trim cover is provided, sewn along the entire periphery at the mutual contact position of an upper and lower cover, the pulled-in state is modulated by cloth pieces, thereby preventing wrinkles. The seat back is provided with the trim cover in which one cloth piece one side edge of which is sewn to the ends of the lower and upper cover is provided at least in the central portion on the inside of the trim cover, the cloth piece is extended inward, the other side edge thereof is sewn to a fastener, the central portion on the back side is extended inward and sewn to the fastener, and the central portion on the inside of the trim cover is sewn to open and close by one fastener.

Abstract: A cushion for a seat of good appearance.

Abstract: When an LPP (land pre-pit) is formed between shallow grooves or shallow pits, the LPP is formed on a land existing between the shallow grooves or the shallow pits. Further, the LPP is formed in a position displaced from a centerline of the land in the radial direction by a predetermined amount. Furthermore, a laser beam power utilized for forming a shallow groove or a shallow pit adjacent to the LPP is reduced so as to be lower than a regular laser beam power.

Abstract: The pattern (104) of a desired character or design can be displayed visibly in an information recording area of an optical recording medium by utilizing the interference phenomenon of the reflected light (200a, 200b), which is caused by the different track pitch (P2, P3) from the standard track pitch (P1), wherein the different track pitch (P2, P3) is applied to some part of tracks (103) corresponding to the desired pattern (104) to be displayed visibly.

Abstract: When an LPP (land pre-pit) is formed between shallow grooves or shallow pits, the LPP is formed on a land existing between the shallow grooves or the shallow pits. Further, the LPP is formed in a position displaced from a centerline of the land in the radial direction by a predetermined amount. Furthermore, a laser beam power utilized for forming a shallow groove or a shallow pit adjacent to the LPP is reduced so as to be lower than a regular laser beam power.