Abstract: An electron beam irradiation apparatus includes an electron beam emission section having an electron beam irradiating tube that emits an electron beam; an electron beam irradiation section for irradiating the emitted electron beam to a target; a transfer mechanism for transferring the target to the electron beam irradiation section; a rotation mechanism for rotating the target on its own axis when irradiating the electron beam; and a linear movement mechanism for generating a relative linear movement such that the electron beam irradiating tube passes right above the target, between the target and the electron beam irradiating tube, when irradiating the electron beam. The linear movement mechanism generates a relative linear movement such that the electron beam irradiating tube goes from an end portion of the target toward the center of the target and turns back before the center of the electron beam emitting portion of the electron beam irradiating tube reaches the center of the target.

Abstract: Disclosed are an electron beam irradiation apparatus and an electron beam irradiation method that are capable of easily curing a material that is hard to be cured by irradiation of ultraviolet rays and of reducing the number of electron beam irradiation tubes. The electron beam irradiation apparatus has a motor for rotationally driving an irradiation target object, a shield container for rotatably accommodating the irradiation target object, and an electron beam irradiation unit provided in the shield container so that the surface of the irradiation target object is irradiated with electron beams, wherein the electron beam irradiation unit and the irradiation target object are relatively moved when the electron beam irradiation unit irradiates the surface of the irradiation target object with the electron beams during a rotation of the irradiation target object.

Abstract: An optical recording medium of the present invention includes a disk body and an ink-receiving layer disposed on a label surface of the disk body, wherein the ink-receiving layer has a brightness of 8 or more, a chroma of 4 or less, and an average surface roughness (Ra) of 0.1 ?m or less. Therefore, a colored layer of white ink need not be provided below the ink-receiving layer to simplify the manufacturing process. Furthermore, even when the ink-receiving layer is formed by a spin coating or slit coating process in which the surface quality of an underlying layer is greatly reflected, therefore, the average surface roughness (Ra) of the ink-receiving layer can be significantly decreased. Thus, printing by an ink jet printer can produce a color and brilliance close to those of a silver salt photograph.

Abstract: An optical recording medium-manufacturing apparatus which is capable of reducing wear of a cut-forming blade section used for forming a cut in a resin layer, without increasing the component costs of the apparatus. An ultrasonic horn includes a hollow-cylindrical cut-forming blade section for being pushed into a resin layer formed on one side of a disk-shaped substrate, thereby forming a circular cut in the resin layer. A control section controls motion of the ultrasonic horn caused by a moving mechanism. The control section causes the ultrasonic horn to be pushed in to the resin layer while causing ultrasonic vibration thereof to thereby form the cut, and while maintaining a state of ultrasonic vibration of the abutment section and a pushed-in state of the cut-forming blade section, causes the punching blade section to be pushed into the disk-shaped substrate, to form the central hole.

Abstract: There is provided a mold component which makes it possible to mold a substrate for an optical recording medium which enables a functional layer having a uniform thickness to be formed thereon without using a resin-coating assisting member. A stamper holder holds a stamper thereon, and has a generally hollow cylindrical shape. An insertion hole formed through a central portion of the stamper has a diameter which is larger than an outer diameter of a cavity-side end of the stamper holder at a higher temperature of the holder than a normal temperature, and is slightly smaller than the outer diameter at the normal temperature of the holder. The cavity-side end inserted into the insertion hole at the higher temperature of the stamper is grasped by a rim of the insertion hole which is reduced in diameter at the normal temperature of the stamper.

Abstract: An electron beam irradiation apparatus and method capable of easily curing at least part of a surface layer and/or a resin layer composed of materials that are hard to be cured by irradiation of ultraviolet rays. A disc-shaped object manufacturing apparatus and method capable of efficiently forming, on the disc-shaped object, at least part of a surface layer and/or a resin layer such as light transmitting layer, etc, thereunder. An electron beam irradiation apparatus comprises a rotary driving unit for rotationally driving an object, a shield container rotatably accommodating the object, and an electron beam irradiation unit provided in the shield container so that the surface of the object is irradiated with electron beams from an irradiation window thereof, wherein the surface of the object is irritated with the electron beams during its rotation from the irradiation window of the election beam irradiation unit.

Abstract: An applied film forming apparatus that forms an applied film on one surface of a substrate includes a dripping unit that drips an energy beam-curing applied material onto the one surface of the substrate, a rotating unit that rotates the substrate, a curing processing unit that emits an energy beam onto the applied material to cure the applied material, an emission regulating unit that regulates emission of the energy beam onto the applied material on an outer circumferential edge part of the one surface of the substrate, and a control unit.

Abstract: An intermediate for an optical recording medium, according to the present invention, is an intermediate produced beforehand for manufacturing an optical recording medium that has a central mounting hole formed in a central portion thereof and one or more kinds of functional layers formed on a surface thereof, for enabling at least one of information recording and information reproduction. The intermediate has a provisional central hole, which is smaller in diameter than the central mounting hole, formed in a central portion thereof. This makes it possible to drop resin in the vicinity of the center of the intermediate without using a disk-shaped member, in performing spin coating on the intermediate, whereby it is possible to make the layer of applied resin substantially uniform in thickness.

Abstract: An optical recording medium 10 comprises a disc body 11, a white ink layer 12 provided on the label side 11b of the disc body 11, and an ink receiving layer 13 provided on the surface 12a of the white ink layer 12. The mean roughness (Ra) of the surface 12a of the white ink layer 12 is set not greater than 0.2 ?m. A step radially extended is left on the surface 13a of the ink receiving layer 13 and set not greater than 1.0 ?m. As the mean roughness (Ra) of the surface 12a of the white ink layer 12 is not greater than 0.2 ?m or as the step on the ink receiving layer 13 is not greater than 1.0 ?m, high printing quality can be secured when printing is done with an ink-jet printer.

Abstract: An optical recording medium is made by a step of bonding a light-transmissive substrate to a supporting substrate having a brightness of 8 or more and a saturation of 4 or less via a bonding layer composed of an epoxy resin; and a step of forming a transparent ink-receiving layer on a surface of the supporting substrate remote from the light-transmissive substrate. The bonding using the epoxy resin is conducted by a method of curing the resin by using a cationic initiator, a method of curing the resin by an addition reaction between the resin and a crosslinking agent containing an active hydrogen compound, a method of curing the resin by heating, or the like. In this invention, the bonding layer is composed of a material containing an epoxy resin instead of a radically polymerizable UV-curable resin typically used. Thus, although UV irradiation through the supporting substrate is not possible, the light-transmissive substrate can be securely bonded to the supporting substrate.

Abstract: A method for manufacturing an optical recording medium of the present invention includes the steps of forming an underlying layer having a brightness of 8 or more and a chroma of 4 or less on a label surface of a disk body by a spin coating process, and forming an ink-receiving layer on the underlying layer. In the present invention, the underlying layer having a brightness of 8 or more and a chroma of 4 or less is formed by a spin coating process, thereby significantly decreasing the surface roughness of the underlying layer. Even if the ink-receiving layer is formed by the spin coating or slit coating process in which the surface quality of the underlying layer is greatly reflected, therefore, the average surface roughness (Ra) of the ink-receiving layer can be significantly decreased. Thus, printing by an ink jet printer can produce a color and brilliance close to those of a silver salt photograph.

Abstract: An optical recording medium according to the present invention includes a support substrate and a light transmission layer formed on one side of the support substrate and constituted so that data are recorded therein or reproduced therefrom by projecting a laser beam having a wavelength of 380 nm to 450 nm thereonto, wherein the light transmission layer is formed so as to have a thickness of 5 ?m to 60 ?m.

Abstract: An optical recording medium of the present invention includes a disk body and an ink-receiving layer disposed on a label surface of the disk body, wherein the ink-receiving layer has a brightness of 8 or more, a chroma of 4 or less, and an average surface roughness (Ra) of 0.1 ?m or less. Therefore, a colored layer of white ink need not be provided below the ink-receiving layer to simplify the manufacturing process. Furthermore, even when the ink-receiving layer is formed by a spin coating or slit coating process in which the surface quality of an underlying layer is greatly reflected, therefore, the average surface roughness (Ra) of the ink-receiving layer can be significantly decreased. Thus, printing by an ink jet printer can produce a color and brilliance close to those of a silver salt photograph.

Abstract: An optical recording medium of the present invention includes a support substrate, a functional layer for storing data, and a transparent ink-receiving layer provided opposite to the functional layer with respect to the support substrate, wherein the support substrate has a brightness of 8 or more, and a chroma of 4 or less. Therefore, a colored layer of white ink need not be provided between the ink-receiving layer and the support substrate, thereby simplifying the manufacturing process. Also, the surface quality of the support substrate is reflected in the ink-receiving layer. For example, when the support substrate is formed by injection, therefore, the average surface roughness (Ra) of the ink-receiving layer is significantly decreased. Thus, printing by an ink jet printer can achieve a color and brilliance close to those of a silver salt photograph.

Abstract: An optical recording medium including a light transmitting resin layer which is hardly susceptible to flaws and stripping and is formed with high accuracy, and a manufacturing method and a manufacturing device of the optical recording medium are provided. An optical recording medium 10 includes: a disc-like shaped support substrate 12 having an information recording face 12A on one side; and a light transmitting resin layer 14 formed on the information recording face 12A of the support substrate 12. An annular convex portion 16 projecting in a thickness direction so as to surround a center axis line 12B of the support substrate 12 is formed on the resin layer 14, and the resin layer 14 is extended to the inside of the annular convex portion 16 in a radial direction.

Abstract: A disc-shaped recording medium manufacturing method involves the use of electron beams for easily curing a resin layer composed of a resin material that is hard to be cured by irradiation of ultraviolet rays and capable of manufacturing a disc-shaped recording medium with a high yield without affecting a recording layer even by irradiating the electron beams. The disc-shaped recording medium manufacturing method of manufacturing the disc-shaped recording medium having a layer composed mainly of resin on a recording layer provided on a disc-shaped substrate, includes the steps of irradiating the layer composed mainly of the resin with electron beams of which an acceleration voltage is equal to or higher than 20 kV and is equal to or lower than 100 kV, and curing at least the surface of the layer composed mainly of the resin.

Abstract: An optical recording medium including a light transmitting layer having a uniform thickness formed on a substrate, in which a burr or stripping hardly occurs at the inner periphery of the light transmitting layer, and a manufacturing method and a manufacturing device of the optical recording medium are provided. An optical recording medium 10 is manufactured by a manufacturing method including: molding a disc-like shaped substrate 12 including an information recording face 12A on one side; forming a light transmitting layer 14 thinner than the substrate 12 on the information recording face 12A; forming a circular cut 16 in the light transmitting layer 14; and punching out an area inside the cut 16 by a punching tool 18 to form a center hole 14A in the light transmitting layer 14 and a center hole 20 in the substrate 12.

Abstract: A method of manufacturing and a manufacturing apparatus manufacture an information recording medium constructed so that a resin layer is formed so as to cover an information layer formed on one surface of an information recording medium substrate and recording data recorded on at least the information layer can be reproduced. The resin layer is formed, while a resin layer forming sheet that has an adhesive layer formed on one surface thereof is heated, by moving at least one out of the resin layer forming sheet and the information recording medium substrate toward another out of the resin layer forming sheet and the information recording medium substrate so that the information layer-side surface of the information recording medium substrate is pressed onto the adhesive layer to stick the information recording medium substrate and the resin layer forming sheet together.

Abstract: An electron beam irradiation apparatus includes a turn-transfer mechanism; a turn-transfer chamber; an electron beam irradiation section; a replacement room configured to bring a target into and out of the turn-transfer chamber; an outer irradiation target holding table configured to form a part of the replacement room, and including an X-ray shielding mechanism, an airtightness maintaining mechanism, and a target holding mechanism; an inner irradiation target holding table, configured to form a part of the replacement room, and including an X-ray shielding mechanism, an airtightness maintaining mechanism, and a target holding mechanism, the inner irradiation target holding table being supported by the turn-transfer mechanism; a turning mechanism configured to turn the turn-transfer mechanism and an elevator mechanism configured to move the turn-transfer mechanism up and down; and a rotation mechanism disposed at the electron beam irradiation section and configured to rotate the target.

Abstract: An electron beam irradiation apparatus includes a turn-transfer mechanism; a turn irradiation chamber; an electron beam irradiation section; a replacement room configured to bring a target into and out of the turn irradiation chamber; an outer irradiation target holding table configured to form a part of the replacement room, and including an X-ray shielding mechanism, an airtightness maintaining mechanism, a target holding mechanism; an inner irradiation target holding table configured to form a part of the replacement room, and including an X-ray shielding mechanism, an airtightness maintaining mechanism, and a target holding mechanism, the inner irradiation target holding table being supported by the turn-transfer mechanism; a turning mechanism configured to drive the turn-transfer mechanism; and an elevator mechanism configured to move the turn-transfer mechanism, which supports the inner irradiation target holding table, up and down.