Abstract: A finish for acrylic fiber to be processed into carbon fiber includes an ester compound having at least three ester groups in its molecule and a silicone compound, wherein the silicone compound constitutes 10 to 50 weight percent of the whole of the nonvolatile matter of the finish. A method of manufacturing carbon fiber includes the processes of applying the finish for acrylic fiber to be processed into carbon fiber to acrylic fiber to be processed into carbon fiber; oxidative-stabilizing the finish-applied acrylic fiber in an oxidizing atmosphere at 200 to 300 deg. C. to convert the fiber into oxidized fiber; and carbonizing the oxidized fiber in an inert atmosphere at 200 to 3000 deg. C.

Abstract: A door weatherstrip includes a mounted base portion which is mounted along an outer circumference of a door frame, and a seal portion which extends in an outer circumferential direction of a door from the mounted base portion. The mounted base portion includes a base bottom portion, a vehicle-interior side wall portion and a vehicle-exterior side wall portion, and an isolating wall portion. The mounted base portion is made from an EPDM sponge rubber material into which polyethylene is mixed to have a specific gravity of 0.2 or larger and smaller than 0.45 and a low expansion stress of 200 kPa or larger. The seal portion is made from an EPDM sponge rubber material having a specific gravity of 0.45 or larger and 1.0 or smaller and a low expansion stress of 120 kPa or larger and smaller than 200 kPa.

Abstract: An automobile door has a glass run corresponding to a glass door. The glass run includes a body portion, which has a bottom wall portion, and a vehicle interior side wall portion and a vehicle exterior side wall portion respectively extending from opposite ends of the bottom wall portion, and also includes a pair of seal lips which performs sealing between the door glass and the glass run. Furthermore, in a cross-sectionally substantially-U-shaped outer peripheral portion of the body portion, sponge rubber layers are provided in a predetermined range in a longitudinal direction of a cross-section of the vehicle interior side surface wall portion and a predetermined zone including a continuously connecting portion between the bottom wall portion and the inner outer side surface wall portion, respectively. An auxiliary lip is provided at a continuously connecting portion between the bottom wall portion and the vehicle interior side wall portion.

Abstract: An automobile door has a glass run corresponding to a glass door. The glass run includes a body portion, which has a bottom wall portion, and a vehicle interior side wall portion and a vehicle exterior side wall portion respectively extending from opposite ends of the bottom wall portion, and also includes a pair of seal lips which performs sealing between the door glass and the glass run. Furthermore, in a cross-sectionally substantially-U-shaped outer peripheral portion of the body portion, sponge rubber layers are provided in a predetermined range in a longitudinal direction of a cross-section of the vehicle interior side surface wall portion and a predetermined zone including a continuously connecting portion between the bottom wall portion and the inner outer side surface wall portion, respectively. An auxiliary lip is provided at a continuously connecting portion between the bottom wall portion and the vehicle interior side wall portion.

Abstract: A vehicle door includes a glass run which corresponds to an outer peripheral configuration of a door glass. The glass run includes a body portion which is provided with a bottom wall portion and an interior side wall portion and an exterior side wall portion which extend from both edges of the bottom wall portion, respectively, and a pair or seal lips which establish seals between the door glass and themselves. Furthermore, with respect to a direction towards an inside or outside of a door frame, a foot portion of the exterior seal lip is positioned further on the outer peripheral side than an inner-peripheral edge portion of a molding member.

Abstract: A sheet capacitor of the invention has a contact portion formed in a through-hole requiring electrical connection with an IC connection pin among the through-holes in which the IC connection pins are inserted, and a capacitor element connected to the contact portion. Another sheet capacitor of the invention includes an insulating board and a capacitor element mounted on the insulating board. The insulating board has a connection land with an IC at the upper side, and a connection land with a printed wiring board at the lower side. The capacitor element and connection lands at the upper and lower side of the insulating board are connected with each other electrically. In any one of these configurations, a capacitor element of large capacity and low ESL is connected closely to the IC, and the mounting area of the peripheral circuits of the IC can be increased.

Abstract: A sheet capacitor of the invention has a contact portion formed in a through-hole requiring electrical connection with an IC connection pin among the through-holes in which the IC connection pins are inserted, and a capacitor element connected to the contact portion. Another sheet capacitor of the invention includes an insulating board and a capacitor element mounted on the insulating board. The insulating board has a connection land with an IC at the upper side, and a connection land with a printed wiring board at the lower side. The capacitor element and connection lands at the upper and lower side of the insulating board are connected with each other electrically. In any one of these configurations, a capacitor element of large capacity and low ESL is connected closely to the IC, and the mounting area of the peripheral circuits of the IC can be increased.

Abstract: A sheet capacitor of the invention has a contact portion formed in a through-hole requiring electrical connection with an IC connection pin among the through-holes in which the IC connection pins are inserted, and a capacitor element connected to the contact portion. Another sheet capacitor of the invention includes an insulating board and a capacitor element mounted on the insulating board. The insulating board has a connection land with an IC at the upper side, and a connection land with a printed wiring board at the lower side. The capacitor element and connection lands at the upper and lower side of the insulating board are connected with each other electrically. In any one of these configurations, a capacitor element of large capacity and low ESL is connected closely to the IC, and the mounting area of the peripheral circuits of the IC can be increased.

Abstract: A sheet capacitor of the invention has a contact portion formed in a through-hole requiring electrical connection with IC connection pin among the through-holes in which the IC connection pins are inserted, and a capacitor element connected to the contact portion. Another sheet capacitor of the invention includes an insulating board and a capacitor element mounted on the insulating board. The insulating board has a connection land with an IC at the upper side, and a connection land with a printed wiring board at the lower side. The capacitor element and connection lands at the upper and lower side of the insulating board are connected with each other electrically. In any one of these configurations, the capacitor element of large capacity and low ESL is connected closely to the IC, and the mounting area of the peripheral circuits of the IC can be increased.

Abstract: The present invention's optical cable is provided with optical fibers, a forming pipe for housing the optical fibers, a sheath provided around the forming pipe, and at least one pair of rip cords embedded in the sheath. The forming pipe is formed of a plurality of tapes so that it is dividable along its longitudinal direction. When dividing the optical cable, the rip cords are pulled to tear open the sheath, and the already split forming pipe is divided while staying adhered to the respective parts of the sheath. As a result, the division of the sheath and the forming pipe is carried out in one stroke, so that the optical fibers inside the forming pipe can be exposed easily and quickly.

Abstract: An optical cable formed by optical fibers, a forming pipe, a sheath, a pair of tension members, and a pair of rip cords. The forming pipe includes a plurality of tapes arranged to permit the forming pipe to be divided in the longitudinal direction and the rip cords are located near the seams of the forming pipe. A distance from the surface of the tension members to the inner surface of the sheath and to the outer surface of the sheath are both 0.3 mm or more. A distance from the center of the rip cords to the inner surface of the sheath is from 0.2-fold or greater to 1.2-fold or less than the radius of the tip cords. Furthermore, the distance from the surface of the rip cords to the seams of the forming pipes is 0.5 mm or less.

Abstract: A coaxial laser beam machining head, and a laser beam machining apparatus having it are provided. The head is small in size, free from the risk of damaging optical instruments, and inexpensive.

Abstract: The present invention's optical cable is provided with optical fibers, a forming pipe for housing the optical fibers, a sheath provided around the forming pipe, and at least one pair of rip cords embedded in the sheath. The forming pipe is formed of a plurality of tapes so that it is dividable along its longitudinal direction. When dividing the optical cable, the rip cords are pulled to tear open the sheath, and the already split forming pipe is divided while staying adhered to the respective parts of the sheath. As a result, the division of the sheath and the forming pipe is carried out in one stroke, so that the optical fibers inside the forming pipe can be exposed easily and quickly.

Abstract: The present invention's optical cable is manufactured using a manufacturing device which has a cylindrical inner pipe; a cylindrical nipple which is disposed outside the inner pipe with a first spacing interval therebetween, and in which tension member insertion holes and rip cord insertion holes have been formed; and a die which is disposed outside this nipple with a second spacing interval therebetween. In the method for manufacturing this optical cable using the aforementioned device, a plurality of plastic tapes are sent into the first spacing interval, and are shaped into a pipe to make a forming pipe, an optical unit relayed from inside the inner pipe is housed inside the forming pipe, tension members and rip cords are relayed from tension member insertion holes and rip cord insertion holes respectively, and melted resin to form the sheath is supplied from a second spacing interval.

Abstract: A laser beam machining head includes a dividing optical system for dividing laser light into two separate laser beams, and providing spacing therebetween; a condensing optical system for condensing the separate laser beams into condensed laser light, and projecting it onto a cutting site of an object to be cut; and an inner assist gas nozzle placed between the separate laser beams, a width of an opening of a tip portion of the inner assist gas nozzle being nearly equal to a cutting width. Or the tip opening of the inner assist gas nozzle is slender; or its tip side is inclined, and the angle of inclination is variable; or the relative positions of the inner assist gas nozzle and a workpiece, or the relative positions of the focal position of the condensing optical system and the workpiece are variable independently; or an outer assist gas nozzle surrounding the separate laser beams is provided.

Abstract: A laser beam machining head includes a dividing optical system for dividing laser light into two separate laser beams, and providing spacing therebetween; a condensing optical system for condensing the separate laser beams into condensed laser light, and projecting it onto a cutting site of an object to be cut; and an inner assist gas nozzle placed between the separate laser beams, a width of an opening of a tip portion of the inner assist gas nozzle being nearly equal to a cutting width. Or the tip opening of the inner assist gas nozzle is slender; or its tip side is inclined, and the angle of inclination is variable; or the relative positions of the inner assist gas nozzle and a workpiece, or the relative positions of the focal position of the condensing optical system and the workpiece are variable independently; or an outer assist gas nozzle surrounding the separate laser beams is provided.

Abstract: A coaxial laser beam machining head, and a laser beam machining apparatus having it are provided. The head is small in size, free from the risk of damaging optical instruments, and inexpensive.

Abstract: In a laser beam machine head, when a filler wire and an optical axis of a laser beam are arranged coaxially, a convex roof mirror and a concave roof mirror are combined to divide the laser beam into two separate laser beams to that no laser beam is projected onto a filler wire feed pipe. Furthermore, the filler wire is fed from outside the laser beams to a condensing position via a filler wire guide in the spacing between the separate laser beams, or an electrode supported by a water flow pipe or an electrode holding pipe is brought close to the condensing position.

Abstract: Focused laser light and plasma arc are coaxially disposed to provide a laser machining head which performs a high precision and efficient machining, by reinforcing laser light with plasma arc to form a versatile heat source. For this purpose, in a tip part 6 of a laser machining head 10 having optical systems 4 and 5 for focusing a laser light 11 oscillated by a laser oscillator 1, a plasma machining head 20 is mounted coaxially with the optical systems 4 and 5. The plasma machining head 20 is provided with electrode nozzles 24 and 25 connected to a plasma apparatus 15 and a working gas supply passage 19 connected to the electrode nozzles 24 and 25 so that the laser light 11 and a plasma arc 28 are irradiated towards a same machining position 14 of a machined part 13.

Abstract: A hybrid welding apparatus for subjecting a base metal to gas-shielded arc welding and laser welding comprises a laser generator for emitting a laser beam and a condenser optical system for condensing the laser beam to laser weld the base metal. The condenser optical system includes a plurality of lenses, each having a hole portion in the center thereof. A tubular supply holder for supplying a welding wire is passed through these respective hole portions of the lenses and located substantially coaxially with the axis of the condenser optical system. The laser beam and welding wire to be applied to the base metal are arranged coaxially, so that laser-welding and arc-shielded welding can be simultaneously performed with a wide angle between the welding head and a bevel of the base metal, thereby deepening penetration of the weld at an increased welding speed.