Abstract: A direct-feed ballpoint writing implement includes a barrel internally provided with an ink tank, a grooved member placed in a front part of the barrel and provided with a groove for guiding air and ink, an ink feed member pressed in the grooved member, a barrel tip fixedly joined to a front end part of the grooved member, a ball holder inserted in the barrel tip and put on a front end part of the ink feed member, and a ball held in a front end part of the ball holder. A compression spring may be extended at least between the ink feed member and the ball in the ball holder.

Abstract: A direct-feed ballpoint writing implement includes a barrel internally provided with an ink tank, a grooved member placed in a front part of the barrel and provided with a groove for guiding air and ink, an ink feed member pressed in the grooved member, a barrel tip fixedly joined to a front end part of the grooved member, a ball holder inserted in the barrel tip and put on a front end part of the ink feed member, and a ball held in a front end part of the ball holder. A compression spring may be extended at least between the ink feed member and the ball in the ball holder.

Abstract: A gas discharge display device comprising a front side substrate having a plurality of first electrodes and a back side substrate having a plurality of second electrodes, wherein at least said first electrodes or second electrodes are formed by wet etching using a resist made of an inorganic material, is excellent in the ability to suppress the breakage of wiring in electrodes.

Abstract: A direct liquid type writing instrument is used without running-over of ink even in an environment in which an internal pressure is higher than an external pressure. The writing instrument includes an ink reservoir containing ink, a junction core extending on a center axis, and a pen body provided integrally on a tip end side of the junction core. The ink reservoir includes a main ink reservoir, a pen core chamber in which the junction core is disposed, and a sub ink reservoir which is provided between the main ink reservoir and the pen core chamber and communicates with the main ink reservoir via a small hole. Between the sub ink reservoir and the pen core chamber, an opening/closing valve is provided to normally isolate the pen core chamber from the sub ink reservoir and to be operated so that the pen core chamber communicates with the sub ink reservoir when the pen body is operated.

Abstract: To provide a direct liquid type writing instrument capable of being used without running-over of ink even in an environment in which an internal pressure is higher than an external pressure. There are included an ink reservoir containing ink, a junction core extending on a center axis, and a pen body provided integrally on a tip end side of the junction core. The ink reservoir includes a main ink reservoir, a pen core chamber in which the junction core is disposed, and a sub ink reservoir which is provided between the main ink reservoir and the pen core chamber and communicates with the main ink reservoir via a small hole. Between the sub ink reservoir and the pen core chamber, an opening/closing valve is provided to normally isolate the pen core chamber from the sub ink reservoir and to be operated so that the pen core chamber communicates with the sub ink reservoir when the pen body is operated.

Abstract: An ink reservoir for an ink refill has a stalk-like front portion, a tubular body portion, and a transitional portion between the stalk-like front portion and the tubular body portion. The transitional portion has a tapered inner surface tapered gently from a boundary between the tubular body portion and the transitional portion toward the stalk-like front portion.

Abstract: A gas discharge display device comprising a front side substrate having a plurality of first electrodes and a back side substrate having a plurality of second electrodes, wherein at least said first electrodes or second electrodes are formed by wet etching using a resist made of an inorganic material, is excellent in the ability to suppress the breakage of wiring in electrodes.

Abstract: The present invention relates to a substrate holding apparatus for holding a substrate to be polished and pressing the substrate against a polishing surface. The substrate holding apparatus comprises a top ring body for holding a substrate, an elastic pad brought into contact with the substrate, and a support member for supporting the elastic pad. The substrate holding apparatus further comprises a contact member mounted on a lower surface of the support member and disposed in a space formed by the elastic pad and the support member. The contact member has an elastic membrane brought into contact with the elastic pad. A first pressure chamber is defined in the contact member, and a second pressure chamber is defined outside of the contact member. The substrate holding apparatus further comprises a fluid source for independently supplying a fluid into or creating a vacuum in the first pressure chamber and the second pressure chamber.

Abstract: A gas discharge display device comprising a front side substrate having a plurality of first electrodes and a back side substrate having a plurality of second electrodes, wherein at least said first electrodes or second electrodes are formed by wet etching using a resist made of an inorganic material, is excellent in the ability to suppress the breakage of wiring in electrodes.

Abstract: A gas discharge display device comprising a front side substrate having a plurality of first electrodes and a back side substrate having a plurality of second electrodes, wherein at least said first electrodes or second electrodes are formed by wet etching using a resist made of an inorganic material, is excellent in the ability to suppress the breakage of wiring in electrodes.

Abstract: A system and method for using a metadata to flexibly analyze data. The system has a metadata that contains technical information and business model information and that exists independently of schemata of source and destination databases. The system also has a metadata management system. The metadata management system includes a mapping means capable of mapping schemata of the source databases to dimensions and measures in the metadata based on the technical information. It also has a modeling means capable of manipulating the business model information and a loading means capable of loading data stored in the source databases into the destination databases for analyses based on the technical information and the business model information stored in the metadata. The method uses source databases, destination databases, and a metadata.

Abstract: A gas discharge display device comprising a front side substrate having a plurality of first electrodes and a back side substrate having a plurality of second electrodes, wherein at least said first electrodes or second electrodes are formed by wet etching using a resist made of an inorganic material, is excellent in the ability to suppress the breakage of wiring in electrodes.

Abstract: A ballpoint tip for a ballpoint liquid container, such as a ballpoint refill, includes a tubular body member, a ball held for rotation in a tip part of the tubular body member, and a coil spring extended in the tubular body member to press the ball against the inner surface of the tip part of the tubular body member. The coil spring is formed by coiling a spring wire, a forward end part of the spring wire is extended linearly to form a straight forward end part, and a back end part of the spring wire is coiled in end coils of an outside diameter greater than that of the effective coils of the coil spring to form a large base end. The coil spring is extended with the base end thereof held in the caulked back end part of the tubular body member and the straight forward end part extended through a liquid passage and in contact with the ball. The coil spring can be strained by applying a pressure thereto through the ball.

Abstract: An IC device contactor for electrically connecting IC devices each having a large number of spherical electrodes on one side of a substrate to an IC tester head for a test of electrical properties or characteristics. The IC device contactor includes: a socket board having a predetermined number of contact points formed on a surface thereof; an anisotropic conductive sheet having a multitude of fine conductive wires embedded in the insulating sheet in an angularly oriented state; a tip holder perforated with a predetermined number of apertures; and a predetermined number of contact tips fitted in the apertures of the tip holder for contact with the spherical electrodes of the IC devices. The anisotropic conductive sheet is disposed with its side in engagement with the socket board and the other side in engagement with the contact tips to electrically connect the contact tips with the contact points on the socket board.

Abstract: A writing instrument comprising a writing ink reservoir containing writing ink therein, a writing ink-passageway communicating with the writing ink reservoir, a writing tip communicating with the ink-passageway, and a check valve mechanism for preventing back-flow of writing ink, the check valve mechanism comprising a valve room provided at a portion of the writing ink-passageway, the valve room having a first area adjacent the writing tip, and a second narrow area adjacent the writing ink reservoir, valve ball movably received within the valve room, and an annular projection provided at the second area of the valve room, the annular projection inclined relative to an axial line of the writing ink-passageway, wherein when the valve ball is located at the second area of the valve room, the second area of the valve room is sealed by the valve ball, thereby preventing writing ink from flowing back toward the writing ink reservoir.

Abstract: A writing instrument includes a body, a writing tip projected from a tip end of the body, an ink supplying mechanism having low-viscosity ink contained therein for supplying the ink to the writing tip, the ink supplying mechanism being incorporated in the body and connected to the writing tip, and at least one ventilating clearance provided between the writing tip and the tip end of the body for facilitating the supplying of the ink to the writing tip. A cap for the writing instrument includes a cap body and a seal member provided in the cap body, the seal member being formed of elastic material. When the writing instrument is coupled with the cap, the seal member is tightly fitted on the tip end of the writing instrument body, whereby the writing tip and the ventilating clearances are completely sealed by the seal member.

Abstract: There is disclosed an agent for preventing the adhesion of thallium 201 to a container which comprises a reducing substance as an active ingredient. There is also disclosed a radioactive diagnostic agent wherein the adhesion of thallium 201 to a container is prevented which comprises thallium 201 and a reducing substance.

Abstract: There is provided a process for improving the resistance to corrosion of stainless steel by ion plating process, the process comprising coating a component-adjusted stainless steel having an Mn/S ratio of less than 100 as substrate with a Ti-layer for surface preparation, coating directly the resulting Ti-layer or indirectly a TiC-layer, which has been coated onto the Ti-layer in advance as intermediate, with a TiN-layer in a total thickness of 1 to 3 .mu.m.The TiN-coated stainless steel according to the present invention may be widely used as corrosion-resistant metallic materials for preparing articles which can be employed under wet conditions such as tableware.