摘要:
An optical information recording medium comprising a substrate, recording layer and reflecting layer, characterized in that a layer containing a mixture of carbide and oxide is disposed over a surface of the reflecting layer which faces to the recording layer. The carbide is a carbide of at least one metal selected from Ti, Zr, V, Nb, Ta, Cr, Mo and W, and the oxide is an oxide of at least one metal selected from Ti, Zr, V, Nb, Ta, Cr, Mo and W.
摘要:
The object of the present invention is to provide an optical recording medium which comprises a substrate, and a first information layer and a second information layer disposed on the substrate, and an intermediate layer disposed between the first information layer and the second information layer, wherein any one of recording and reproducing is performed in the first information layer and the second information layer by irradiating a laser beam from the first information layer side, the second information layer comprises a protective layer, a second dye layer which comprises an organic dye, an oxidized layer, and a reflective layer in this order from the laser beam irradiation side, and the oxidized layer comprises an oxide which is a material constituting the reflective layer.
摘要:
The object of the present invention is to provide a multilayer phase-change information recording medium comprises a substrate, and N layers of information layer (N represents an integral number of 2 or more), and each of the information layers comprises at least a recording layer in which information is recorded by irradiating laser beam to induce a phase change between crystalline phase and amorphous phase. The present invention is characterized in that when the information layer is disposed so that a first information layer, a second information layer, a third information layer . . . , and N information layer are disposed in this sequence from the laser beam irradiation side, at least one information layer other than the N information layer comprises a lower protective layer, a recording layer, an upper protective layer, a reflective layer, and a thermal diffusion layer disposed in this sequence is from the laser beam irradiation side; the thermal diffusion layer comprises at least indium (In) and oxygen (O) and further comprises any one of titanium (Ti) and zirconia (Zr); and the atomic ratio of indium (In) to all the metal elements in the thermal diffusion layer, In/all the metal elements, is 0.75 to 0.9.
摘要:
The present invention relates to a phase-change optical information recording medium comprising a recording layer which reversibly phase-changes between the crystalline phase and the amorphous phase by irradiation of a light having a recording wavelength of 390 to 430 nm, and a light transmittance thermally controllable layer showing a light transmittance varying according to temperature, in which the light transmittance increases at a rate of 0.2 to 0.7% /10° C.
摘要:
An optical recording medium having first protective layer, recording layer, second protective layer, and reflective layer, wherein the recording layer contains a phase-change material represented by Formula (1″1), Formula (1-2), or Formula (1-3); the second protective layer contains one selected from zinc oxides, indium oxides, tin oxides, mixtures thereof, and materials Formula (2), and materials Formula (3). Formula (1″1): InαiSbβiX1γi(X1: Ge, Te, Zn, Mn, or mixture thereof, 0.10≦α1≦0.25, 0.65≦β1≦0.80, and 0.04≦γ1≦0.15) Formula (1-2): Gaα2Sbβ2SnY2Ges2X2∈2 (X2: Te, Zn, Mn, In, or mixture thereof, 0.04≦α2≦0.09, 0.56≦62≦0.79, 0.05≦γ2
摘要:
A powder storage container capable of preventing erroneous opening of a powder loading port. The powder storage container includes a powder storage part configured to store a developer used for image forming, a powder discharge part provided on one end part of the powder storage part to discharge the developer stored in the powder storage part, a gripping part protruding through an end face of the one end part side of the powder storage part, a powder loading port causing an inner space of the powder storage part and an outer portion of the powder storage part to communicate with each other, and a sealing member capable of sealing the powder loading port. The powder loading port is enclosed by the gripping part.
摘要:
An optical recording medium which comprises a phase-change recording layer utilizing optical constants associated with a reversible-phase-change induced by laser beam irradiation between an amorphous phase and a crystalline phase. The phase-change recording layer comprises Ge, Sb, Sn, Mn, and X. X represents at least one element selected from In, Bi, Te, Ag, Al, Zn, Co, Ni, and Cu. When the relation of respective contents thereof is represented by GeαSbβSnγMnδXε, elements of α, β, γ, δ, and ε respectively satisfy the following numerical expressions: 5≦α≦25, 45≦β≦75, 10≦γ≦30, 0.5≦δ≦20, and 0≦ε≦15 (atomic %) when α+β+γ+δ+ε=100), and the total content of of Ge, Sb, Sn, Mn, and X is 95 atomic % of the entire content of the phase-change recording layer.
摘要:
In a computer system including a host which operates in a pre-read mode to start a block data transfer after reading status of a peripheral device (HDD) in response to an interrupt from the peripheral device or in a post-read mode to read the status after completing the block data transfer, an interface circuit comprising mode detecting circuitry for automatically detecting whether the host operates in the pre-read mode or in the post-read mode so that data transfers can be correctly performed between the peripheral device and the host even if the host is in either mode, delay circuitry for delaying by a predetermined amount of time, a data request DRQ indicating that a block of data is ready to be transferred, when the post-read mode is detected, and interrupt circuitry for sending an interrupt request IRQ to the host in response to the output of the delay circuitry.
摘要:
A powder storage container capable of preventing erroneous opening of a powder loading port. The powder storage container includes a powder storage part configured to store a developer used for image forming, a powder discharge part provided on one end part of the powder storage part to discharge the developer stored in the powder storage part, a gripping part protruding through an end face of the one end part side of the powder storage part, a powder loading port causing an inner space of the powder storage part and an outer portion of the powder storage part to communicate with each other, and a sealing member capable of sealing the powder loading port. The powder loading port is enclosed by the gripping part.
摘要:
To provide a method for determining an optimum laser beam power for a single-side, dual-layer optical recording medium having first and second information layers, the method including: determining an optimum laser beam power based on a predetermined characteristic value at the time when the number of overwrite cycles on the recording medium is a predetermined value, wherein the method is conducted by an optical recording/reproduction apparatus utilizing optical change, and wherein the first information layer is closer to the laser irradiation side than is the second information layer.