Abstract: A light source that emits pulse excitation light includes a laser light source, an optical splitter that splits a pulse laser beam into a plurality of pulse laser beams, phase adjusters and optical amplifiers provided for the pulse laser beams, and an optical combiner that combines the plurality of pulse laser beams whose phases are adjusted and that are amplified, and outputs combined light as the pulse excitation light. An optical phase controller controls phase delay amounts of the phase adjusters, and an optical monitor detects an inclination of the pulse excitation light relative to an optical axis of a focusing lens. The optical phase controller stores phase delay amount data indicating phase delay amounts of the plurality of phase adjusters in which the inclination is a predetermined value, and sets the phase delay amounts of the plurality of phase adjusters based on the phase delay amount data.

Abstract: An electron beam emitted from a photoexcited electron gun is increased in luminance. An electron gun 15 includes: a photocathode 1 including a substrate 11 and a photoelectric film 10; a light source 7 that emits pulsed excitation light; a condenser lens 2 that focuses the pulsed excitation light toward the photocathode; and an extractor electrode 3 that faces the photocathode and that accelerates an electron beam generated from the photoelectric film by focusing the pulsed excitation light by the condenser lens, transmitting the pulsed excitation light through the substrate of the photocathode, and causing the pulsed excitation light to be incident on the photocathode. The pulsed excitation light is condensed at different timings at different positions on the photoelectric film of the photocathode.

Abstract: A synthetic resin stent is able to demonstrate self-extensibility, restorability, adhesion to the digestive tract, and ability to follow peristaltic movement. The synthetic resin stent is provided with: a first stent that has a first stent body formed as a cylindrical mesh from fibers made of synthetic resin, and that can be deformed from a reduced-diameter state to an expanded-diameter state; and a second stent that is formed as a cylindrical mesh which is finer than that of the first stent body, is arranged so as to cover the outer periphery of the first stent body, and can be deformed from a reduced-diameter state to an expanded-diameter state.

Abstract: Provided is a synthetic resin stent that has resistance to pressure externally applied from the radial direction while in an enlarged diameter state even when the synthetic resin fibers are thin. The synthetic resin stent comprises: a stent main section that is formed by synthetic resin fibers into a cylinder and that can deform from a reduced diameter state to an enlarged diameter state; and a restricting mechanism that keeps the stent main section in the enlarged diameter state by restricting the stent main section from reducing in diameter when in the enlarged diameter state. The synthetic resin stent preferably further comprises a diameter enlarging mechanism that is connected to the stent main section and that deforms the stent main section from a reduced diameter state to an enlarged diameter state.

Abstract: Provided is a synthetic resin stent that has resistance to pressure externally applied from the radial direction while in an enlarged diameter state even when the synthetic resin fibers are thin. The synthetic resin stent comprises: a stent main section that is formed by synthetic resin fibers into a cylinder and that can deform from a reduced diameter state to an enlarged diameter state; and a restricting mechanism that keeps the stent main section in the enlarged diameter state by restricting the stent main section from reducing in diameter when in the enlarged diameter state. The synthetic resin stent preferably further comprises a diameter enlarging mechanism that is connected to the stent main section and that deforms the stent main section from a reduced diameter state to an enlarged diameter state.

Abstract: According to one embodiment, a solid-state imaging device includes a photoelectric conversion element, a light blocking section, and a protective layer. The protective layer protects the photoelectric conversion element and the light blocking section. A step section is formed on a surface of the protective layer. The step section is formed having a difference in height in a direction perpendicular to an irradiation surface of the photoelectric conversion element. The step section is provided in the light receiving area.

Abstract: The present invention provides a porous member formed not by the paste method and a method of producing the porous member. The porous member of the present invention includes a core layer and a porous surface layer, wherein the core layer and the surface layer are composed of the same polymer raw material, the surface layer is formed integrally on a surface of the core layer, and the porous member does not comprise an adhesive layer between the core layer and the surface layer. Such a porous member can be produced by making the surface of a polymer substrate porous. Specifically, the porous member can be produced by immersing the polymer substrate in a solvent capable of dissolving the polymer substrate and freeze-drying the immersed polymer substrate.

Abstract: According to one embodiment, a semiconductor device includes a semiconductor substrate which includes a first chip area and a second chip area. An insulation film is formed over the substrate. An electrical circuit is formed in the first chip area and is electrically independent from any component in another chip area. The electrical circuit includes an electrical element and an interconnect on the substrate and in the insulation film. Boundary patterns are formed in the insulation film between the first and second chip areas, are electrically independent from the electrical circuit, and have a gap therebetween. One of the boundary patterns surrounds the first chip area.

Abstract: [PROBLEMS] To provide a material for producing a bioabsorbable material in which it is easy to remove a metal zinc catalyst from a bioabsorbable polymer such as a polymer of lactide or a polymer of lactide and caprolactone and it is easy to recycle the removed powdery metal zinc catalyst, and to provide a bioabsorbable material produced from the material for producing a bioabsorbable material. [MEANS FOR SOLVING PROBLEMS] A material for producing a bioabsorbable material including a three-dimensionally shaped metal zinc polymerization catalyst and a bioabsorbable polymer such as a polymer of lactide or a polymer of lactide and caprolactone; and a process for producing a material for producing a bioabsorbable material, characterized in that in the process for producing a bioabsorbable polymer by polymerization, a three-dimensionally shaped metal zinc catalyst is used as a polymerization catalyst.

Abstract: According to one embodiment, a solid-state imaging device includes a photoelectric conversion element, a light blocking section, and a protective layer. The protective layer protects the photoelectric conversion element and the light blocking section. A step section is formed on a surface of the protective layer. The step section is formed having a difference in height in a direction perpendicular to an irradiation surface of the photoelectric conversion element. The step section is provided in the light receiving area.

Abstract: The present invention provides a method for purifying a polymer, by which a reduction in molecular weight of the polymer can be suppressed, and a residual catalyst in the polymer can be reduced effectively. The polymer containing the residual catalyst is brought into contact with an organic solvent containing an organic acid that has a pKa in the range of 2 to 3.9. Thus, the catalyst remaining in the polymer can be reduced, and the polymer can be purified. The organic acid can be, for example, lactic acid.

Abstract: An adhesion-preventive film is provided that is excellent in flexibility and can prevent cracks from occurring. The adhesion-preventive film contains a copolymer of lactide and caprolactone. The lactide and the caprolactone of the copolymer has a mole ratio in the range of 65:35 to 80:20. Even when this adhesion-preventive film is used in a curved state in vivo or is wound around an affected part such as a tendon, for example, it can provide an adhesion-preventive function for a sufficiently long period without cracking.

Abstract: When manufacturing an optical recording medium by forming a resin layer on a surface of a substrate and then forming a center hole that passes through the substrate and the resin layer, a method of manufacturing an optical recording medium according to the present invention forms the center hole by forming, in the resin layer, a circular cut with a larger diameter than the center hole so as to surround a formation position of the center hole and then pressing in a punching blade for forming the center hole from a rear surface side of the substrate. By doing so, detachment of the resin layer and the production of burrs at or near the center hole can be avoided while reducing the manufacturing cost.

Abstract: [Problems] To provide a thin film-shaped porous bioabsorbable material that is a dense structure in which the pore size average is small and the pore size is uniform and which further has a large maximum stress, in particular, a porous bioabsorbable material extremely useful as an adhesion preventing material.

Abstract: [Problems]To provide a material for producing a bioabsorbable material in which it is easy to remove a metal zinc catalyst from a bioabsorbable polymer such as a polymer of lactide or a polymer of lactide and caprolactone and it is easy to recycle the removed powdery metal zinc catalyst, and to provide a bioabsorbable material produced from the material for producing a bioabsorbable material. [Means for Solving Problems]A material for producing a bioabsorbable material including a three-dimensionally shaped metal zinc polymerization catalyst and a bioabsorbable polymer such as a polymer of lactide or a polymer of lactide and caprolactone; and a process for producing a material for producing a bioabsorbable material, characterized in that in the process for producing a bioabsorbable polymer by polymerization, a three-dimensionally shaped metal zinc catalyst is used as a polymerization catalyst.

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 adhesion-preventive film is provided that is excellent in flexibility and can prevent cracks from occurring. The adhesion-preventive film contains a copolymer of lactide and caprolactone. The lactide and the caprolactone of the copolymer has a mole ratio in the range of 65:35 to 80:20. Even when this adhesion-preventive film is used in a curved state in vivo or is wound around an affected part such as a tendon, for example, it can provide an adhesion-preventive function for a sufficiently long period without cracking.

Abstract: A process for producing a porous object is provided that makes it possible to control pore sizes, particularly not only smaller pore sizes but also larger pore sizes. The pore sizes are controlled by: preparing a mixed solution containing a polymer including a copolymer of lactide and caprolactone, a solvent in which the polymer has a relatively low solubility, and a solvent in which the polymer has a relatively high solubility and that is compatible with the solvent in which the polymer has a relatively low solubility; varying the content of the solvent in which the polymer has a relatively low solubility in the mixed solution, when the mixed solution is frozen and dried to produce the porous object; and cooling the mixed solution at a rate of 300° C./hr or lower in freeze-treating. Thus a porous object with a pore size of 30 to 1800 ?m can be obtained.

Abstract: There is provided an optical recording medium-manufacturing apparatus that is capable of avoiding breakage of a substrate while avoiding formation of a central hole off-center with respect to the substrate. A control section causes the vertical movement section to move an ultrasonic horn in directions toward and away from the cutting edge of a punching blade section to thereby cause the ultrasonic horn to press the disk-shaped substrate and at the same cause an ultrasonic generator to perform ultrasonic vibration at least from a time point at which the disk-shaped substrate is brought into contact with the cutting edge of the punching blade section to a time point at which the punching of the central hole is completed.

Abstract: There is provided an optical recording medium-manufacturing apparatus that is capable of accurately transferring a disk-shaped apparatus during a manufacturing process, and at the same time occupies a small installation area. A control section causes a cut-forming machine installed at a cut-forming location to form a cut in a resin layer of a disk-shaped substrate, then causes an indexing mechanism to rotate a transfer stage to thereby transfer the disk-shaped substrate formed with the cut to a central hole-forming location, and then causes a punching machine to punch a central hole.