Abstract: A composite material vibrator includes a vibrating component that is composed of a material having a first acoustic impedance Z1 and that serves as a vibration source, a reflective layer that is composed of a cured product of a resin composition including at least a curable resin curable by heat, a curing agent, and a silicone compound, the cured product having a second acoustic impedance Z2 that is lower than the first acoustic impedance Z1 and that is connected to the vibrating component, and a holding component that is composed of a material having a third acoustic impedance Z3 that is higher than the second acoustic impedance Z2 and that is connected to surface of the reflective layer, the surface being opposite to the surface connected to the vibrating component, wherein vibration propagated from the vibrating component to the reflective layer is reflected at the interface between the reflective layer and the holding component.

Abstract: In a gas discharge tube there is carried out narrowing of the discharge path with cooperation of the first opening 20 and second opening 12 in order to obtain higher luminance of light. Further, in order to maintain excellent starting-properties of a lamp even if the discharge path is narrowed, a predetermined voltage is applied to a second discharge path limit portion 11 externally. Thereby, a positive or active starting discharge is produced in such a manner as to pass through the first opening 20. Further, the second opening 12 is comprised of not only a straight section 13 extending in a direction of an optical axis Y, but also a spread section 14 extending from an end portion of the straight section 13 toward the first opening 20.

Abstract: The present invention relates to a gas discharge tube or the like having a structure for enabling the maintenance of discharge startability and the prevention of the shortening of the life of an anode section and for increasing the amount of visible light from a visible light source passing through a discharge path restricting section. The gas discharge tube comprises a sealed vessel in which gas is encapsulated. A cathode section and anode section for generating discharge are arranged in the sealed vessel. Furthermore, a discharge path restricting section for narrowing a discharge path is arranged between the cathode section and the anode section. In particular, an opening portion is formed in the anode section, and the cross section of the opening portion has a non-circular shape where the maximum opening width in a first direction is different from that in a second direction orthogonal to the first direction.

Abstract: The present invention relates to a gas discharge tube or the like having a structure for enabling the maintenance of discharge startability and the prevention of the shortening of the life of an anode section and for increasing the amount of visible light from a visible light source passing through a discharge path restricting section. The gas discharge tube comprises a sealed vessel in which gas is encapsulated. A cathode section and anode section for generating discharge are arranged in the sealed vessel. Furthermore, a discharge path restricting section for narrowing a discharge path is arranged between the cathode section and the anode section. In particular, an opening portion is formed in the anode section, and the cross section of the opening portion has a non-circular shape where the maximum opening width in a first direction is different from that in a second direction orthogonal to the first direction.

Abstract: The present invention relates to a light source apparatus with a structure that enables the brightness of a gas discharge tube to be stabilized and facilitates gas discharge tube maintenance work. The light source apparatus has a gas discharge tube, a lamp container housing the gas discharge tube, and a base on which the lamp container is fixed. The gas discharge tube is fixed via a heat insulating member to a portion of an outer shell of the lamp container, and the heat insulating member functions to reduce heat transfer between the lamp container and the gas discharge tube to reduce the influence of temperature change, outside the lamp container, on the gas discharge tube.

Abstract: The present invention relates to a light source apparatus with a structure that improves the positioning precision of a gas discharge tube and facilitates gas discharge tube maintenance work. The light source apparatus has a lamp container housing the gas discharge tube, and an insulating socket member that is fixed in a state of being positioned with respect to the lamp container and that is housed in the lamp container together with the gas discharge tube. The insulating socket member has a plane contacting portion put in plane contact with a stem portion of the gas discharge tube, and a pin socket member into which at least one of stem pins, held in the stem portion is inserted in an electrically contacting state.

Abstract: A gas discharge tube which generates discharge between an anode 24 and a cathode 56 disposed within a sealed container 12 in which a gas is sealed, includes a cylindrical part 28 restricting the discharge path, the cylindrical part being disposed between the anode and the cathode and having a through hole 42 for narrowing the discharge path between the anode and the cathode, and a discharge shielding part 50 which is disposed so as to cover a surrounding of the part restricting the discharge path and is electrically insulated from the part restricting the discharge path, wherein the part restricting the discharge path has a cathode side end projecting by a predetermined projecting amount more than a surface on the cathode side of the discharge shielding part and an anode side end projecting into a space 62 on the side where the anode is positioned so that a high-density electron region is formed only in a part on the cathode side of the through hole of the part restricting the discharge path to reliably gener

Abstract: A gas discharge tube 100 including a sealed container 1 in which a gas is sealed, an anode disposed within the sealed container, a cathode 7 which is spaced from the anode 4 in the sealed container 1 and generates discharge between the cathode 7 and the anode 4, a conductive part 6 restricting a discharge path, the conductive part 6 being disposed between the anode 4 and the cathode 7 and narrowing the discharge path, wherein by providing a cathode cover 8 which is made of ceramics, encloses the cathode 7, and has an opening 8d at least on an electron emission side, the cathode cover 8 increases the heat retaining effect of the cathode 7, makes it easy to keep the temperature of the cathode 7, and reduces power consumption.

Abstract: A gas discharge tube 10 of the present invention generates an electric discharge between an anode part 24 and a cathode part 52 disposed inside a sealed container 12 in which gas has been sealed. The gas discharge tube 10 includes an electric discharge path restricting part 28 which is cylindrical and disposed between the anode part and the cathode part, and which has a throughhole 46 for narrowing an electric discharge path between the anode part and the cathode part; and a supporting part 30 which supports the electric discharge path restricting part and which is electric insulating. The electric discharge path restricting part is provided at its tip portion with a projecting part 44 which is cylindrical and projects toward the cathode part side. Letting the outer diameter and height of the projecting part 44 be “D” and “H,” respectively, then D/H is in the range of 0.5 to 2.0. With this structure, it is possible to generate an intense electric field in the vicinity of the tip of the projecting part.

Abstract: A gas discharge tube 10 of the present invention generates an electric discharge between an anode part 24 and a cathode part 56 disposed inside a sealed container 12 in which gas has been contained. The gas discharge tube 10 comprises an electric discharge path restricting part 28 which is cylindrical and disposed between the anode part and the cathode part, and which has a throughhole 42 for narrowing an electric discharge path between the anode part and the cathode part; and an electric discharge shielding part 50 which is disposed to surround the electric discharge path restricting part so as to restrict an electric discharge from the outer peripheral surface of the electric discharge path restricting part to the cathode part, and which is electrically isolated from the electric discharge path restricting part.

Abstract: A gas discharge tube 10 of the present invention generates an electric discharge between an anode part 24 and a cathode part 52 disposed inside a sealed container 12 in which gas has been sealed. The gas discharge tube 10 includes an electric discharge path restricting part 28 which is cylindrical and disposed between the anode part and the cathode part, and which has a throughhole 46 for narrowing an electric discharge path between the anode part and the cathode part; and a supporting part 30 which supports the electric discharge path restricting part and which is electric insulating. The electric discharge path restricting part is provided at its tip portion with a projecting part 44 which is cylindrical and projects toward the cathode part side. Letting the outer diameter and height of the projecting part 44 be “D” and “H,” respectively, then D/H is in the range of 0.5 to 2.0. With this structure, it is possible to generate an intense electric field in the vicinity of the tip of the projecting part.

Abstract: A gas discharge tube 10 of the present invention generates an electric discharge between an anode part 24 and a cathode part 56 disposed inside a sealed container 12 in which gas has been contained. The gas discharge tube 10 comprises an electric discharge path restricting part 28 which is cylindrical and disposed between the anode part and the cathode part, and which has a throughhole 42 for narrowing an electric discharge path between the anode part and the cathode part; and an electric discharge shielding part 50 which is disposed to surround the electric discharge path restricting part so as to restrict an electric discharge from the outer peripheral surface of the electric discharge path restricting part to the cathode part, and which is electrically isolated from the electric discharge path restricting part.

Abstract: A head includes a slider, configured to fly by an air current produced between a surface of a recording medium and a facing surface of the slider, and a head portion which is provided on the slider and records and reproduces information on and from the recording medium. The slider has a negative-pressure cavity, and a pad portion, which is situated on the downstream side of the negative-pressure cavity with respect to the air current, protrudes from the facing surface. Read/write gaps of the head portion are formed in a projected surface of the pad portion. The pad portion has a step portion which is provided on the downstream side of the read/write gaps with respect to the air current and formed extending in a plurality of tiers from the projected surface in the direction of the air current.

Abstract: In the gas discharge tube according to the present invention, there is carried out narrowing of the discharge path with cooperation of the first opening 20 and the second opening 12 in order to obtain higher luminance of light. Further, in order to maintain excellent starting-properties of a lamp even if the discharge path is narrowed, a predetermined voltage is applied to a second discharge path limit portion 11 externally. Thereby, a positive or active starting discharge is produced in such a manner as to pass through the first opening 20. Further, the second opening 12 is comprised of not only a straight section 13 extending in a direction of an optical axis Y, but also a spread section 14 extending from an end portion of the straight section 13 toward the first opening 20. The spread section 14 has a function of improving the starting properties of the lamp and forms an arc ball, and the straight section has a function of improving a plasma density.

Abstract: To provide a mobile communication system which can distribute area information from a radio Node to a mobile terminal in a unit of cell. A mobile communication system comprising: a radio Node having a plurality of cells; host apparatus connected to the radio Node so as to be able to communicate information with the radio Node; and a mobile terminal receiving information distributed from the radio Node, wherein area information different for each cell is distributed from the radio Node to the mobile terminals 40 existing in the cell included in the radio Node, the area information is transmitted, together with control information including type information added according to a content of the area information, from the host apparatus to the radio Node, and the cell to be distributed with the information is determined based on the type information.

Abstract: A digital broadcasting receiver includes a tuner unit for receiving digital broadcasting in formation, an information storage unit for storing the digital broadcasting information together with copyright information, and a decoder unit for decoding the digital broadcasting information into an output signal in a form to be displayed. When a copy-disallowance signal is detected during an operation for reading and reproducing digital broadcasting information from the information storage unit, by employing a reproducing pointer, the digital broadcasting receiver simultaneously erases the digital broadcasting information by employing a simultaneous erasing pointer. On the other hand, when a copy-disallowance signal is detected while digital broadcasting information is being received and stored in the information storage unit, the digital broadcasting receiver inhibits outputting the received digital broadcasting information as an output signal in a form to be displayed through the decoder unit.

Abstract: A balanced-to-unbalanced transformer for interconnecting a balanced signal transmitted on a balanced cable and an unbalanced signal transmitted on an unbalanced cable through a transformer. Common-mode impedance is reduced by grounding a center point of two or more impedance elements between signal lines on the balanced cable side of the transformer to a signal circuit ground or a frame ground on the unbalanced cable side of the transformer.

Abstract: Described herein is a clip ring type ornamental clasp which can be used in various ways for securely gripping thin material like a handkerchief as well as relatively thick material like a belt. A clip ring is pivotally attached on a gripping surface of an ornament body through a ring support member. A rubber sheet with a bulged portion in its center portion is securely bonded on the gripping surface, while an anti-slip cover structure of rubber or other material of a large frictional coefficient is fitted on the clip ring. The anti-slip cover structure is provided with an opening of a larger diameter than a cloth threading hole in the clip ring, so that the marginal edges of the cloth threading hole are exposed at the inner periphery of the opening in the cover structure. The ornamental clasp grips cloth or other article securely between the anti-slip member and the anti-slip cover structure with high gripping force, and can be used in various ways without slip-off.

Abstract: A plurality of assumed detection value series correspond to combinations of a plurality of Viterbi detection series and a plurality of assumed detection values. The Viterbi detection series correspond to possible survived paths. The assumed detection values correspond to a current input value. A data series corresponds to intersymbol interference. Assumed input amplitude values are determined in accordance with the assumed detection value series and the data series. Differences between the assumed input amplitude values and the current input value are calculated. Likelihoods corresponding to degrees of sureness of survived path branches are calculated on the basis of the calculated differences. One of the possible survived paths is selected in accordance with the calculated likelihoods. A detection value is generated in accordance with the selected survived path.