Abstract: A hermetic package device comprises a device wafer in which a semiconductor circuit and bonding pads are provided on a mounting surface, a lid wafer arranged to be opposed to the device wafer, and a sealing part that forms an hermetically sealed space in a vacuum atmosphere to house the semiconductor circuit between the device wafer and the lid wafer. A second installation region in which the bonding pads are provided in the mounting surface protrudes relative to the lid wafer, and an outer surface of a portion in the sealing part facing the second installation region is inclined such that a position thereon approaches the second installation region when getting closer from the device wafer toward the lid wafer.

Abstract: The hermetic terminal includes a metal base that is provided with at least one sealing hole, a lead that is inserted in the sealing hole provided on the metal base, an insulating material that hermetically seals the metal base and the lead, and a heat insulating member that is provided to cover at least a partial surface of the hermetic terminal which is located inside a pressure-resistant container after the hermetic terminal is fixed to the pressure-resistant container and comes into contact with refrigerant sealed in the pressure-resistant container.

Abstract: To provide a hermetic terminal with an insulating cylinder, the hermetic terminal being applicable to insulation coatings that pose difficulties with known insert molding methods, and being producible in small lots without changing the mold for each change in a ring-like outer metal member, and a manufacturing method thereof. Means for Solving Problem A hermetic terminal includes a ring-like outer metal member including at least one sealing hole, a lead inserted through the sealing hole of the ring-like outer metal member, an insulating material hermetically sealing the lead to the ring-like outer metal member, and an insulating cylinder fitted onto the lead and adhering, at at least an end portion of the insulating cylinder, to the ring-like outer metal member.

Abstract: [Problem] Provided is an airtight terminal that is configured to lessen distortion-borne stress caused in a metallic outer ring as a result of screw fastening or other fixing means to prevent the stress from readily propagating to an insulating material in a sealed place of a lead. [Solution] An airtight terminal is provided that includes a metallic outer ring 13 having through holes 11 formed for screw fastening and sealing holes 12, leads 14 inserted through the sealing holes 12 in the metallic outer ring 13, and pieces of an insulating, material 15 to seal gaps between the metallic outer ring 13 and the respective leads 14. The metallic outer ring 13 is provided with pairs of cavities 13a and steps 13b surrounding the respective sealing holes 12.

Abstract: The hermetic terminal includes a metal base that is provided with at least one sealing hole, a lead that is inserted in the sealing hole provided on the metal base, an insulating material that hermetically seals the metal base and the lead, and a heat insulating member that is provided to cover at least a partial surface of the hermetic terminal which is located inside a pressure-resistant container after the hermetic terminal is fixed to the pressure-resistant container and comes into contact with refrigerant sealed in the pressure-resistant container.

Abstract: A machine tool bed (1) is configured by integrally connecting element beds (2, 3) in a horizontal direction, the element beds (2, 3) to be connected each have a joint surface arranged to intersect with a horizontal plane, at least one element bed of the element beds (2, 3) to be connected to each other has a seal groove in the joint surface thereof, and the seal groove is filled with a sealant in a state where the element beds (2, 3) to be connected to each other are connected to each other.

Abstract: A machine tool bed (1) is configured by integrally connecting element beds (2, 3) in a horizontal direction, the element beds (2, 3) to be connected each have a joint surface arranged to intersect with a horizontal plane, at least one element bed of the element beds (2, 3) to be connected to each other has a seal groove in the joint surface thereof, and the seal groove is filled with a sealant in a state where the element beds (2, 3) to be connected to each other are connected to each other.

Abstract: A fuse-equipped hermetic terminal includes: a housing provided with a hollow portion and a pair of through holes located with the hollow portion being interposed therebetween; a conductive pin extending through the housing via the pair of through holes and the hollow portion; and a pair of insulating sealing materials that each hermetically seal a gap between the conductive pin and a corresponding one of the pair of through holes. Each of the conductive pins includes an inner pin, an outer pin, and a fuse element that bridges between the inner pin and the outer pin and that is located in the hollow portion.

Abstract: A fuse-equipped hermetic terminal includes: a housing provided with a hollow portion and a pair of through holes located with the hollow portion being interposed therebetween; a conductive pin extending through the housing via the pair of through holes and the hollow portion; and a pair of insulating sealing materials that each hermetically seal a gap between the conductive pin and a corresponding one of the pair of through holes. Each of the conductive pins includes an inner pin, an outer pin, and a fuse element that bridges between the inner pin and the outer pin and that is located in the hollow portion.

Abstract: A joined body includes a first member having a female portion, and a second member having a male portion inserted in the female portion at one end, and an annular groove along an outer circumference of the male portion. The first member and the second member are fitted to each other. A plurality of joint portions is formed on a side wall of the female portion. The joint portions are joined to the male portion by being pushed in the annular groove. A pressing portion is formed at the female portion so as to face a position of the male portion axially different from the annular groove of the male portion. The pressing portion pressed against the male portion.

Abstract: A hydraulic shock absorber enables its piston rod to be locked near its minimum length position and allows the locked condition to be visually confirmed easily. A cap member is secured to a distal end portion of a piston rod extending from a cylinder part, and a dust cover is secured to the cap member. A lock member is secured to an end of the cylinder part from which the piston rod extends to the outside. The lock member is cut and bent upward to form engaging portions. The cap member is cut and bent downward to form engaging pieces and windows. With the piston rod contracted to near its minimum length position, the cap member is rotated to engage the engaging portions and the engaging pieces with each other, thereby locking the piston rod. The engaged condition of the engaging portions and the engaging pieces can be visually confirmed through the windows.

Abstract: A hydraulic shock absorber enables its piston rod to be locked near its minimum length position and allows the locked condition to be visually confirmed easily. A cap member is secured to a distal end portion of a piston rod extending from a cylinder part, and a dust cover is secured to the cap member. A lock member is secured to an end of the cylinder part from which the piston rod extends to the outside. The lock member is cut and bent upward to form engaging portions. The cap member is cut and bent downward to form engaging pieces and windows. With the piston rod contracted to near its minimum length position, the cap member is rotated to engage the engaging portions and the engaging pieces with each other, thereby locking the piston rod. The engaged condition of the engaging portions and the engaging pieces can be visually confirmed through the windows.