Abstract: An optical information recording medium containing a first information substrate including a first substrate having a guide groove thereon, a first recording layer including a dye, overlying the first substrate and a first reflective layer being a semi-transmittance layer, overlying the first recording layer, a second information substrate comprising, a second substrate having a guide groove thereon, a second recording layer comprising a dye, overlying the second substrate, a second reflective layer being a semi-transmittance layer, located overlying the second recording layer and a light transmittance protective layer overlying the second reflective layer and a transparent intermediate layer. Further, the following relationships (1) and (2) are satisfied: (1) 0.3?nd/??0.7, wherein n represents refractive index in the complex refractive index n-ik of the light transmittance protective layer, d represents a thickness thereof, and ? is at least one of a recording wavelength and a playback wavelength, (2) k?0.

Abstract: Squarylium-metal chelate compounds as recording materials for optical recording media, and optical recording media using these compounds, which have excellent recording properties, light resistance and storage stability. The squarylium-metal chelate compound is represented by following Structural Formulas (1) and (2): In the formula (1), M represents a metal atom capable of coordinating; “a”, “b” and “c” each represents a squarylium dye ligand of formula (2), where “a” is different from “b”; and “c” may be the same as or different from “a” or “b”; and “m” represents 0 or 1. In the formula (2), R1 and R2 are the same or different and each represents an alkyl group, aralkyl group, aryl group or heterocyclic group, each of which may be substituted; and X represents an aryl group which may be substituted, a heterocyclic group which may be substituted, or Z3=CH—, wherein Z3 represents a heterocyclic group which may be substituted.

Abstract: An optical pickup unit for recording information on and/or reproducing information from a multilayer information recording medium including multiple recording surfaces in each of which a guide groove on which the information is to be recorded is spirally formed is disclosed. The optical pickup unit includes a light source, a diffraction element configured to split the light beam emitted from the light source into a main light beam and first and second sub light beams, an objective lens for focusing the main and sub light beams onto a recording surface of the multilayer information recording medium, and multiple light receiving elements each divided into light receiving parts so as to receive the main and sub light beams reflected from the recording surface. The focused first and second sub light beams are disposed at respective positions at least 3/2 tracks away from the focused main light beam on the recording surface.

Abstract: An optical information recording medium containing a first information substrate including a first substrate having a guide groove thereon, a first recording layer including a dye, overlying the first substrate and a first reflective layer being a semi-transmittance layer, overlying the first recording layer, a second information substrate comprising, a second substrate having a guide groove thereon, a second recording layer comprising a dye, overlying the second substrate, a second reflective layer being a semi-transmittance layer, located overlying the second recording layer and a light trasnmittance protective layer overlying the second reflective layer and a transparent intermediate layer. Further, the following relationships (1) and (2) are satisfied: (1) 0.3?nd/??0.7, wherein n represents refractive index in the complex refractive index n-ik of the light trasnmittance protective layer, d represents a thickness thereof, and ? is at least one of a recording wavelength and a playback wavelength, (2) k?0.

Abstract: To implement a dynamic, elegant motion performance of an actual robot, a motion editing system is provided which includes a motion editor to edit motions of an upper body and whole body of the robot and a foot trajectory editor to create a gait pattern and lower-body motion to stabilize the entire robot. The foot trajectory editor includes the same gait pattern generator and motion stabilized as those installed in the actual robot. Before performing the edited motions on the actual robot, the motions are created, corrected and stabilized on a 3D viewer.

Abstract: An optical information recording medium containing a first information substrate including a first substrate having a guide groove thereon, a first recording layer including a dye, overlying the first substrate and a first reflective layer being a semi-transmittance layer, overlying the first recording layer, a second information substrate comprising, a second substrate having a guide groove thereon, a second recording layer comprising a dye, overlying the second substrate, a second reflective layer being a semi-transmittance layer, located overlying the second recording layer and a light transmittance protective layer overlying the second reflective layer and a transparent intermediate layer. Further, the following relationships (1) and (2) are satisfied: (1) 0.3?nd/??0.7, wherein n represents refractive index in the complex refractive index n-ik of the light transmittance protective layer, d represents a thickness thereof, and ? is at least one of a recording wavelength and a playback wavelength, (2) k?0.

Abstract: It is an object of the present invention to provide a recording and reproducing method for dye-based recordable DVD medium which performs a recording of a shortest mark by one pulse light of a highest intensity, and a recording of the second shortest and following marks by one pulse light with a pulse power less intense than the pulse power of the shortest mark and both head and tail of the pulse are high powered for a predetermined time, wherein the recording is performed on the recording layer containing an organic dye formed on a substrate having a guide groove, wherein the power of irradiated light besides the pulse light which corresponds to the mark formation is 1.2% to 22% based on the pulse power of the shortest mark, and wherein the recording linear velocity is 12 m/s or more during recording of each mark.

Abstract: An optical recording medium, a method for producing the optical recording medium, and a method and apparatus for recording and reproducing the optical recording medium are provided.

Abstract: A motion editing system for a robot in which the motion of a robot edited is corrected as the movements performed by an actual robot are checked. An optional range of motion data is reproduced using an actual robot. At this time, an output from each sensor mounted to the actual robot, that is, the sensor information, is transmitted to the motion editing system. The robot's movements are evaluated on the motion editing system based on the sensor information acquired during motion reproduction. If, as a result of the robot's movements, a predetermined evaluation criterium is not met, the motion correction processing is carried out. If the predetermined evaluation criterium is met, a motion data file, in which is embedded the reference sensor information, is formulated.

Abstract: The object of the present invention is to provide a single-sided double-layer recording/reproducing optical recording medium, wherein favorable recording signal properties may be obtained even from the second recording layer. An optical recording layer comprises, layered in the order from the recording/reproducing light incident plane, a first substrate, a first recording layer comprising an organic dye as a main component, a first reflective layer, a bonding layer, an inorganic protective layer, a second recording layer comprising an organic dye as a main component, a second reflective layer and a second substrate and permits recording/reproducing by a red laser beam, wherein the optical recording medium is characterized by the depth of guide grooves formed in the second substrate which is in any one of the ranges from 200 ? to 600 ? and from 1,900 ? to 2,700 ?.

Abstract: 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.

Abstract: An optical recording medium is described, having suitable recording characteristics over a wide range of recording linear speed and fitting with recording/reproduction apparatuses of CD-R specifications. The optical recording medium includes a substrate having at least a light absorbing layer thereon, which is mainly composed of three phthalocyanine compounds (I), (II) and (III). Each of the phthalocyanine compounds (I) and (II) has a thermal decomposition temperature of from 200° C. to 300° C., and has a different light absorption ability against light having a wavelength of 780 nm. The phthalocyanine compound (III) has a thermal decomposition temperature of from 300° C. to 350° C.

Abstract: An optical information recording medium containing a first information substrate including a first substrate having a guide groove thereon, a first recording layer including a dye, overlying the first substrate and a first reflective layer being a semi-transmittance layer, overlying the first recording layer, a second information substrate comprising, a second substrate having a guide groove thereon, a second recording layer comprising a dye, overlying the second substrate, a second reflective layer being a semi-transmittance layer, located overlying the second recording layer and a light trasnmittance protective layer overlying the second reflective layer and a transparent intermediate layer. Further, the following relationships (1) and (2) are satisfied: (1) 0.3<nd/??0.

Abstract: The object of the present invention is to provide a two-layered optical recording medium using dye layers for a recording layer which triggers no jitter noise and the like against not only a red laser beam but also against low-power output laser beam such as a blue laser beam, has high archival properties, and is capable of high-density recording, and a method and an apparatus for the optical recording and reproducing. Thus, the optical recording medium comprises a substrate, and a first information layer, and a second information layer disposed on the substrate through an intermediate layer to perform recording and reproducing on the first information layer and the second information layer respectively by irradiating laser beam from the first information layer side.

Abstract: To implement a dynamic, elegant motion performance of an actual robot, a motion editing system is provided which includes a motion editor to edit motions of an upper body and whole body of the robot and a foot trajectory editor to create a gait pattern and lower-body motion to stabilize the entire robot. The foot trajectory editor includes the same gait pattern generator and motion stabilized as those installed in the actual robot. Before performing the edited motions on the actual robot, the motions are created, corrected and stabilized on a 3D viewer.

Abstract: An optical recording medium includes a first information substrate selected from one including a first substrate and a read-only first recording layer containing a reflective film and having information pits, and one including a first substrate with guide grooves, a first recording layer containing an organic dye, and a first reflective layer arranged in this order; and a second information substrate including a second substrate with guide grooves, a second reflective layer, a second recording layer containing an organic dye, and an inorganic protective layer in this order. The first and second information substrates are bonded with the interposition of an optically transparent organic interlayer so that the first and second substrates each face outward, and information recorded on the first and second recording layers is reproduced by applying light from a surface of the first substrate.

Abstract: Squarylium-metal chelate compounds as recording materials for optical recording media, and optical recording media using these compounds, which have excellent recording properties, light resistance and storage stability.

Abstract: A motion editing system for a robot in which the motion of a robot edited is corrected as the movements performed by an actual robot are checked. An optional range of motion data is reproduced using an actual robot. At this time, an output from each sensor mounted to the actual robot, that is, the sensor information, is transmitted to the motion editing system. The robot's movements are evaluated on the motion editing system based on the sensor information acquired during motion reproduction. If, as a result of the robot's movements, a predetermined evaluation criterium is not met, the motion correction processing is carried out. If the predetermined evaluation criterium is met, a motion data file, in which is embedded the reference sensor information, is formulated.

Abstract: Disclosed herein are a disc recording medium, a recording apparatus and a playback apparatus, more concretely, the present invention provides a disc recording medium wherein a circular track is created in advance to be used for recording data as a groove or a land, said track is wobbled to contain approximately fixed number of wobbling periods as counted in a longitudinal direction of said track, and said track includes rotational-angle marks each showing a predetermined rotational angular position on said disc recording medium. As a result, the precision and the reliability of recording can be attained.

Abstract: There is provided a disk drive unit which is capable of making control corresponding to contaminant and defect by discriminating the contaminant (dust, scratch) on the disk surface from the defect on the recording plane. In a pull-in signal PI corresponding to reflected light from a disk, a defect detecting signal corresponding to a signal whose level change is relatively quick corresponding to the defect of the recording plane and a contaminant detecting signal which corresponds to a signal whose level change is relatively slow corresponding to the contaminant on the disk surface are generated. When the defect detecting signal is at low level for example, a system controller retries a recording operation or increases laser light when the contaminant detecting signal is at low level. A quantity of output light of a laser diode is controlled so that a product of output light of a laser diode and reflected light from the disk amounts to a predetermined level.