Abstract: In a consumable cassette having a recording material storage section 2 and an ink sheet storage section 1, a space 65 where a constituting component such as a supply roller 56 is to be disposed is formed in the cassette, when the cassette is attached to a recording apparatus. A movable member is movably disposed to cover the space, when the cassette is removed from the recording apparatus. Therefore, rigidity of the cassette is improved.

Abstract: In a consumable cassette detachably attached to a recording apparatus and containing a recording material and an ink sheet, a recording material storage section is constantly partially connected to an ink sheet storage section so as to be relatively displaceable in a direction in which the section disunite from or unite with each other, the sections disunite from each other, when the cassette is attached to the recording apparatus, and the sections unite with each other, when the cassette is removed from the recording apparatus.

Abstract: An optical disk drive apparatus for recording a predetermined signal on an optical disk by varying predetermined recording conditions and detecting recording characteristics based on a reproduction signal of the predetermined signal is provided. The optical disk drive apparatus includes a reproducing part for reproducing the predetermined signal for a plurality of times; and recording characteristics detecting part for detecting the recording characteristics based on a plurality of reproduction signals supplied from the reproducing part.

Abstract: An optical disc drive has an OPC control unit that records the signal to a plurality of frames in the predetermined test area on the optical disc using a plurality of recording power values and repeatedly records the signal to another plurality of frames in the predetermined test area on the optical disc using the plurality of recording power values, and calculates an average strength value of the reflected light of the plurality of strength values of the reflected lights from the plurality of frames in which frames the signal is recorded with the same recording power value, and the average strength value of the reflected light corresponding to the optimum recording power value is determined as an optimum strength value of the reflected light , during the OPC operation, and a recording power control unit that modifies the recording power value by a predetermined value in order to make the strength value of the reflected light from the pit portion during recording move toward the optimum strength value of the

Abstract: An object of the invention is to provide a polishing pad having the excellent slurry retaining properties and the large removal rate and a composition for a polishing pad which can form such the polishing pad. A composition for polishing pad of the invention is comprising a water-insoluble matrix material containing a crosslinked polymer and a water-soluble particle dispersed in the water-insoluble matrix material. The elongation remaining after breaking is 100% or less when a test piece comprising the water-insoluble matrix material is broken at 80° C. according to JIS K 6251. A polishing pad of the invention is that at least a part of the polishing pad comprises the composition for polishing pad.

Abstract: A method of an optical disk drive for determining both an optimum write power and an optimum tracking offset value using a test area reserved for a conventional OPC operation by determining a coarsely adjusted laser power using a portion of the test area, determining an optimum tracking offset using another portion of the test area, and determining an optimum write power using the remaining portion of the test area. The optimum tracking offset ensures that the RF signal is not affected by a wobble formed on a groove.

Abstract: A biological substance related article includes a coating formed by causing a biological substance adsorption preventive coating composition to come in contact with a surface of the biological substance related article and heating the composition, the biological substance adsorption preventive coating composition including: (A) a copolymer obtained by copolymerizing raw material monomers including a monomer A1 shown by the following general formula (1) and an active hydrogen group-containing monomer A2; (B) a crosslinking agent reactive with an active hydrogen group; and (C) a solvent.

Abstract: The present invention provides an optical disk device which optimizes recording power level used when recording data. A controller records test data in a test region of an optical disk and evaluates reproduced signal quality of the test data, so as to determine an optimum recording power level Po (OPC). Subsequently, the controller uses reflected light intensity level B obtained when recording data to make adjustments to the optimum recording power level Po, thereby obtaining recording power level P. The recording power level P is adjusted such that Bm/Pn=constant, where m and n are positive rational numbers satisfying m<n. When m=1, the value of n is greater than or equal to 1.5 and no larger than 10.

Abstract: An optical disk apparatus that records data on an optical disk whose linear velocity is not constant. The optical disk apparatus includes an optical pickup that irradiates a laser beam of a recording power on the optical disk, converts light reflected from the optical disk into an electric signal; a detector that detects a level of the reflected light signal; and a controller that controls a recording power such that the reflected light signal level matches a target value set according to the linear velocity. When adjusting the recording power such that the reflected light level matches the target value, the target value is not set to a constant level, but set in accordance with the linear velocity. Target values at different linear velocities differ and, with this configuration, an appropriate target value is set and an appropriate recording power corresponding to the linear velocity is obtained.

Abstract: An optical disk drive unit performing write power calibration which performs recording on a given test area of an optical disk by changing a write power and sets an optimum write power based on characteristic values obtained from reproduced signals from the given test area includes average calculation means for dividing the given test area into a plurality of areas, performing recording on the areas by changing the write power equally, and calculating averages of characteristic values obtained from reproduced signals from the areas, and optimum write power setting means for setting the optimum write power based on the averages of the characteristic values calculated by the average calculation means. Thereby, with the averages of the characteristic values obtained from the areas of the optical disk which areas are in angularly different positions, the effects of the periodic variation of the optical disk can be reduced and the optimum write power can be set with good accuracy.

Abstract: An object of the invention is to provide a polishing pad having the excellent slurry retaining properties and the large removal rate and a composition for a polishing pad which can form such the polishing pad. A composition for polishing pad of the invention is comprising a water-insoluble matrix material containing a crosslinked polymer and a water-soluble particle dispersed in the water-insoluble matrix material. The elongation remaining after breaking is 100% or less when a test piece comprising the water-insoluble matrix material is broken at 80° C. according to JIS K 6251. A polishing pad of the invention is that at least a part of the polishing pad comprises the composition for polishing pad.

Abstract: An object of the invention is to provide a polishing pad having the excellent slurry retaining properties and the large removal rate and a composition for a polishing pad which can form such the polishing pad. A composition for polishing pad of the invention is comprising a water-insoluble matrix material containing a crosslinked polymer and a water-soluble particle dispersed in the water-insoluble matrix material. The elongation remaining after breaking is 100% or less when a test piece comprising the water-insoluble matrix material is broken at 80° C. according to JIS K 6251. A polishing pad of the invention is that at least a part of the polishing pad comprises the composition for polishing pad.

Abstract: The present invention provides an optical disk device which optimizes recording power level used when recording data. A controller records test data in a test region of an optical disk and evaluates reproduced signal quality of the test data, so as to determine an optimum recording power level Po (OPC). Subsequently, the controller uses reflected light intensity level B obtained when recording data to make adjustments to the optimum recording power level Po, thereby obtaining recording power level P. The recording power level P is adjusted such that Bm/Pn=constant, where m and n are positive rational numbers satisfying m<n. When m=1, the value of n is greater than or equal to 1.5 and no larger than 10.

Abstract: An optical disk apparatus that records data on an optical disk whose linear velocity is not constant. The optical disk apparatus includes an optical pickup that irradiates a laser beam of a recording power on the optical disk, converts light reflected from the optical disk into an electric signal; a detector that detects a level of the reflected light signal; and a controller that controls a recording power such that the reflected light signal level matches a target value set according to the linear velocity. When adjusting the recording power such that the reflected light level matches the target value, the target value is not set to a constant level, but set in accordance with the linear velocity. Target values at different linear velocities differ and, with this configuration, an appropriate target value is set and an appropriate recording power corresponding to the linear velocity is obtained.

Abstract: In a disk apparatus, a movable-base position sensing switch (169) is provided such that the sensing switch is turned from ON state into OFF state at a time a turntable (20) of a movable base (13) is separated from a clamper (16) during movement of the movable base (13) to an unclamped position. A motor (91) is controlled (190, 191, S12-S20) so that a driving force of the motor is used to move a tray and/or to move the movable base through a drive device. The motor is actuated in a first direction to move the movable base to the unclamped position for a first period from the time the position sensing switch is turned into OFF state. The motor is actuated in a reverse direction for a second period from an end of the first period. The driving of the motor is stopped for a third period from an end of the second period. The motor is actuated in the first direction from an end of the third period such that the tray is moved to the disk-change position.

Abstract: An optical disc drive has an OPC control unit that records the signal to a plurality of frames in the predetermined test area on the optical disc using a plurality of recording power values and repeatedly records the signal to another plurality of frames in the predetermined test area on the optical disc using the plurality of recording power values, and calculates an average strength value of the reflected light of the plurality of strength values of the reflected lights from the plurality of frames in which frames the signal is recorded with the same recording power value, and the average strength value of the reflected light corresponding to the optimum recording power value is determined as an optimum strength value of the reflected light , during the OPC operation, and a recording power control unit that modifies the recording power value by a predetermined value in order to make the strength value of the reflected light from the pit portion during recording move toward the optimum strength value of the

Abstract: A method of an optical disk drive for determining both an optimum write power and an optimum tracking offset value using a test area reserved for a conventional OPC operation by determining a coarsely adjusted laser power using a portion of the test area, determining an optimum tracking offset using another portion of the test area, and determining an optimum write power using the remaining portion of the test area. The optimum tracking offset ensures that the RF signal is not affected by a wobble formed on a groove.

Abstract: An optical disk drive apparatus for recording a predetermined signal on an optical disk by varying predetermined recording conditions and detecting recording characteristics based on a reproduction signal of the predetermined signal is provided. The optical disk drive apparatus includes a reproducing part for reproducing the predetermined signal for a plurality of times; and recording characteristics detecting part for detecting the recording characteristics based on a plurality of reproduction signals supplied from the reproducing part.

Abstract: An object of the invention is to provide a polishing pad having the excellent slurry retaining properties and the large removal rate and a composition for a polishing pad which can form such the polishing pad. A composition for polishing pad of the invention is comprising a water-insoluble matrix material containing a crosslinked polymer and a water-soluble particle dispersed in the water-insoluble matrix material. The elongation remaining after breaking is 100% or less when a test piece comprising the water-insoluble matrix material is broken at 80° C. according to JIS K 6251. A polishing pad of the invention is that at least a part of the polishing pad comprises the composition for polishing pad.

Abstract: A method of producing a liquid crystal alignment layer comprising exposing an organic film to polarized pulse laser beam to align molecules in a surface portion of the organic film. There is provided a liquid crystal alignment layer composed of a polyamide film having aligned molecules in a surface portion.