摘要:
A magnetic recording medium is provided, which includes a recording layer formed in a concavo-convex pattern to achieve high areal density and can ensure good recording and reproduction characteristics so as to provide high reliability. The magnetic recording medium has a substrate and a recording layer formed in the predetermined concavo-convex pattern over the substrate. The recording layer has a non-recording element and recording elements. The non-recording element is formed as convex portion of the concavo-convex pattern at an outer circumferential end and/or an inner circumferential end. The recording elements are formed as convex portions of the concavo-convex pattern in a region other than a region where the non-recording element is arranged. The magnetic recording medium further has a non-magnetic material with which concave portions of the concavo-convex pattern are filled and which covers the non-recording element, and a protective layer formed over the recording layer and the non-magnetic material.
摘要:
Liquid nitrogen is filled in a low temperature vessel; an ejector that sucks liquid nitrogen by blowing a cooling agent (liquid or gas) such as low temperature helium gas or liquid helium of pressure higher than in the space within the vessel is disposed in the vessel; the liquid nitrogen blown with the cooling agent is cooled by the cooling agent to become fine particles of solid nitrogen which fall down; and gas in a space of the vessel is discharged out of the vessel so as to maintain the pressure of the space higher than the atmospheric pressure. A gaseous phase of liquid nitrogen in an adiabatic vessel is depressurized to vaporize nitrogen in a liquid phase so that the temperature of the nitrogen reaches the triple point of nitrogen by lowering the temperature to thereby produce solid nitrogen by keeping the temperature at the triple point, and that the produced solid nitrogen is transformed into slush by stirring the content of the adiabatic vessel. A super conductive body formed of a material exhibiting a state of super conductance in the vicinity of the temperature of liquid nitrogen or of the temperature where liquid nitrogen and solid nitrogen coexist can be cooled by immersing the body in slush nitrogen held in an adiabatic vessel or flowing in an adiabatic pipe.
摘要:
A magnetic recording medium including at least a disk substrate 1A, a magnetic recording layer 5 formed with a predetermined concavo-convex pattern on the disk substrate 1A, and a non-magnetic layer 6 filled into concave portions of the concavo-convex pattern, so as to have data track regions 20 and servo pattern regions 21. Due to the existence of concaves and convexes in the surface of each servo pattern region 21, the foregoing problem is solved. On this occasion, arithmetical mean deviation of the assessed profile Ra of the surface of each servo pattern region 21 is preferably not lower than 0.3 nm. The difference in surface level between each concave and each convex existing in the surface of the servo pattern region 21 is preferably not larger than 6 nm.
摘要:
A method for manufacturing magnetic recording media is provided, by which a magnetic recording medium that has a recording layer formed in a concavo-convex pattern, a sufficiently flat surface, and good recording/reproducing properties can be manufactured. The method includes the steps of: depositing a first filling material over a workpiece to cover recording elements formed as convex portions of the concavo-convex pattern, and to fill at least part of a concave portion; depositing a detection material over the first filling material; depositing a second filling material over the detection material; and irradiating a surface of the workpiece with a process gas to flatten the surface. In the flattening step, a component of the detection material removed from and flying off the workpiece is detected to stop the irradiation with the process gas based on a result of detecting the component of the detection material.
摘要:
Disclosed herein are a lactic acid-based polymer composition comprising: (i) an amide compound represented by General Formula (1): R1—(CONHR2)a (1) wherein R1 represents a C2-30 saturated or unsaturated aliphatic polycarboxylic acid residue, a C4-28 saturated or unsaturated alicyclic polycarboxylic acid residue, or a C6-28 aromatic polycarboxylic acid residue, and R2 represents C1-18 alkyl, C2-18 alkenyl, C3-12 cycloalkyl or cycloalkenyl or the like, (ii) an ester plasticizer, and (iii) a lactic acid-based polymer; a transparent, crystalline (heat resistant) molded article molded from such a lactic acid-based polymer composition; and a method for producing such a molded article.
摘要:
A magnetic disk medium of the invention comprises a disk form of substrate, a multiplicity of unit minuscule recording areas formed of a magnetic material on the substrate to magnetically record information thereon and located concentrically or spirally at an interval in a peripheral or radial direction, and a non-recording area provided on the substrate and formed of a non-magnetic material that is embedded between the unit minuscule recording areas. Each unit minuscule recording area is in a form having a major axis and a minor axis, wherein the direction of the major axis is aligned with the radial direction of the substrate.
摘要:
A lid (40) with which an opening (35) in a lens hood (30) is made open or closed is rotatably supported by a hinge pin (47) that is supported at both ends on pin support portions (37) of the lens hood (30) and which is passed through pin insertion holes (44). When the lid (40) closes the opening (35), retainer lugs (42) of the lid (40) retain stoppers (36) of the lens hood (30) to keep the opening (35) closed. If the stoppers (36) are removed from the constraint by the retainer lugs (42) and the lid (40) is turned about the hinge pin (47) under the urging force exerted by the spring (48), the lid (40) is brought to a state where it makes the opening 35 open.
摘要:
Multiple elevators are installed as a group in a building and are equipped with destination floor boarding location buttons (7), (8), (9) and (10) that are provided on the lobby floor. Multiple car controllers (1), (2), (3), (4) and (5) are input car data for each elevator so that the controllers control the operations of each elevator. A higher level controller (6) is provided with input data from the multiple car controllers and call data and that efficiently operates multiple cars while accommodating changes in traffic demand. When it is determined that higher level controller (6) is in service, all the floors are divided up into sectors and cars are quickly dispatched to the aforementioned sectors in response to the aforementioned destination floor boarding calls, and the sequencing of service in each sector will be in the order in which each destination floor boarding call has occurred.
摘要:
A push-button device for an elevator is equipped with the function of both a hall button and a hall position indicator, and furthermore, the function of a destination floor button.
摘要:
Disclosed herein is a lens barrel including a lens having a reference portion, a barrel body having a supporting portion adapted to come into contact with the reference portion of the lens, and a lens holding member for holding the lens so that the lens is sandwiched between the lens holding member and the barrel body in the condition where the reference portion of the lens is biased against the supporting portion of the barrel body.