Abstract: A washing apparatus for mop heads and washing pads which has the introduction of cleaning solution into a compartment for the mop as well as an overflow and drain function. The washer provides affordability, eliminates the need for electricity as a power source or lifting the cleaning water so as to drain the unit, and eliminates the possibility of back injuries associated with lifting. The washing apparatus also affords versatility that it can be combined with a mop bucket with a wringer function. Further, it can include accessories such as a spray nozzle or a foam gun.

Abstract: An integral packing housing and packing material unit; a method for packing replacement, boiler cleaning; and a method for maintenance of a desired boiler output rating. The integral packing unit includes a housing for removably holding a sacrificial packing material that is configured to form a steam seal between a sootblower steam tube and lance spindle when the packing unit is installed in an operative position in association with the steam tube and the spindle and the packing material is loaded by applying compression to the packing material. A compression unit is typically coupled to the housing unit to apply such compression to load the packing material while the packing unit is installed in the operative position. The packing unit may also includes a detent mechanism, such set screws, for unloading the packing material to facilitate installing the packing unit on, and removing the packing unit from, the operative position.

Abstract: A robot obstacle detection system including a robot housing which navigates with respect to a surface and a sensor subsystem having a defined relationship with respect to the housing and aimed at the surface for detecting the surface. The sensor subsystem includes an optical emitter which emits a directed beam having a defined field of emission and a photon detector having a defined field of view which intersects the field of emission of the emitter at a region. A circuit in communication with a detector redirects the robot when the surface does not occupy the region to avoid obstacles. A similar system is employed to detect walls.

Abstract: A barrel washing apparatus (10) for cleaning barrels, particularly wine barrels (16). A wand assembly (14) has a spray head (22) mounted on a fluid supply tube (28) which is bent in a particular fashion such that it can be inserted through a bung hole (20) of a wine barrel (16). A suction tube (24) has a cut away portion (38) in a distal end (36) thereof for abutting the bottom of the wine barrel (16). The suction tube (24) is also bent in a particular fashion. A barrel stopper (26) is adapted for holding the fluid supply tube (28) and the suction tube (24) in position in the bung hole (20) of the wine barrel (16). A service cart (12) has a pressure pump (55) for providing fluids under pressure to the spray head (22) via a fluid line (50), A vacuum apparatus (62) provides vacuum for removing fluids from the wine barrel (16) via the suction tube (24) and a vacuum line (52) and for depositing the fluids in a sump (63). A sump pump (64) removes the fluids from the sump (63).

Abstract: A remote-controlled vehicle and method for performing a plurality of tasks in a location generally inaccessible to humans are provided. The vehicle may include a propulsion frame, and a platform attached to the frame or integral therewith for supporting an interchangeable accessory selected from a set of distinct interchangeable accessories. Each distinct interchangeable accessory may be configured to perform a distinct operational task. The platform includes at least one mechanical power takeoff, and each accessory includes at least one mechanical power receptor configured to interface with the mechanical power takeoff for coupling mechanical energy to the accessory. The platform constitutes a universal platform for the set of distinct interchangeable accessories.

Abstract: The invention provides debris collection devices that include a debris contacting mechanism, a debris transport mechanism that is configured to receive debris moved by the debris contacting mechanism at an inlet and move such debris towards a debris storage compartment, and a filter and vacuum assembly. The filter and vacuum assembly includes an inlet disposed downstream of the inlet of the transport mechanism and upstream of the debris storage compartment, relative to the path of transported debris. In operation, the filter and vacuum assembly generate a primary air flow that draws the airborne particles into the inlet of the transport mechanism, along a path proximate to the transport mechanism, into the inlet of the filter and vacuum assembly and through a filter located within the filter and vacuum assembly without generating a substantial airflow through the storage compartment. Related debris collection and processing systems and methods also are provided.

Abstract: The object of this invention is a separator for liquid bath type vacuum cleaners, wherein the liquid bath provides the pre-separation and the disposal of the suctioned in particulate matter.

Abstract: A vacuum-cleaner suction tool which comprises a sucking portion for sucking up dust on a surface to be cleaned, a joint portion having one end connected to the upper side of the sucking portion and the other end provided with a connection pipe, and an agitator disposed within the sucking portion for scraping dust off the surface, the opening, joint portion, and connection pipe each having a channel portion allowing sucked-up dust to pass therethrough, in which the joint portion is configured to be turnable, relative to the sucking portion, in a direction substantially horizontal to the surface to be cleaned to such an extent that the longitudinal central axis of the sucking portion becomes substantially parallel to the longitudinal central axis of the connection pipe, whereby the forward end of sucking portion, from left to right, can be brought into close contact with wall surfaces so that dust liable to collect at corners can be fully sucked up.

Abstract: The present invention refers to a duster nozzle for vacuum cleaners, comprising a tube (1) carrying a duster (3a) at the air flow entrance end. The novelty of the invention basically consists in that the duster (3a) has duster elements (3) which decrease in lenght, at least partially, along the direction that is transverse to the air flow (4) at the entrance end of the nozzle.

Abstract: A vacuum cleaner attachment and method of use thereof provides an effective cleaning system for fungi and the like. A vacuum paddle extension enables the attachment to travel into narrow cracks and crevices where fungus may grow and by use of an abrasive and porous pad dislodges such fungus or fungi. When attached to a vacuum system, such as a HEPA (High Efficiency Particulate Air-Filtered) vacuum system, the debris and particulate matter generated by the abrasive process is drawn into the vacuum attachment and into the vacuum system where it is removed from the air which is then expelled by the vacuum system. Better cleaning of surfaces afflicted with fungi, molds, and the like is then achieved in a manner that is safer and more effective.

Abstract: A swivel caster assembly has a molded plastic caster horn with an upwardly opening socket receiving a connector stem, the portion thereof above the caster horn having either a plate, a threaded post, or a smooth post with a retaining ring, for connection to an object to be supported by the caster. The caster horn and the received stem portions of the various connectors are the same, so the same horn can receive any type of connector. The horn is shaped to receive locking features for wheel, swivel, both wheel and swivel, or simply a snap-in cover where no locking feature is desired.

Abstract: A hinge assembly which creates a zero backlash situation. The base member has multiple seats, each having two contact ridges. The contact ridges are formed by an intersection of two planes (ideally substantially ninety degrees). A ball interconnect is engaged by the contact ridges of the seat on one side and a similar arrangement of contact seats on the other side (the hinge member). The diameter of the ball interconnect is larger than the distances between the contact ridges. By sandwiching the ball interconnect between the contact ridges of the base member and the contact ridges of the hinge member, a zero backlash is created in which firm and positive contact is maintained between the elements of the hinge.

Abstract: An electrically weldable spring hinge comprising a housing (2) having a cavity, in particular a cylindrical recess (5), into which cavity a hinge element (31) can be inserted, is proposed. This spring hinge is distinguished by the fact that a supporting body (3; 3′; 3″; 3′″) can be inserted into the cavity.

Abstract: A bi-directional hinge has a body with two barrels formed at two sides thereof. The barrels each have a slot defined through an outer periphery and adjacent a top end thereof Two torsional springs are respectively received in the barrels. A first leaf and a second leaf are pivotally mounted on the barrels respectively. Two upper seats are respectively provided on the top ends of the barrels, and two lower seats are respectively provided on the bottom ends of the barrels. Two axles respectively extend through the lower seats, the torsional springs and the upper seats. Two upper caps are provided at upper ends of the axles, and two lower caps are provided at lower ends of the axles. The upper and lower caps have linings of an abrasion-resistant plastic formed therein.

Abstract: A self-contained hinge is disclosed for use in a flip-style device, such as a personal digital assistant (PDA). The spring provides a compressive force to maintain the cam pressed against the follower. Additionally, the spring applies a torsional force to the cam to facilitate rotation of the follower relative to the cam and automatically open the hinge.

Abstract: A hinge for a cellular phone that has a cover and a base comprises an inner sleeve, an outer sleeve and a spring. The spring is mounted between the inner sleeve and the outer sleeve and provides a torsion force to open the cover. A layer of buffering gel is applied the outer surface of the inner sleeve between the inner sleeve and the outer sleeve to damp the opening rate of the cover so that the pivoting device can keep a wire between the cover and the base from breaking.

Abstract: The invention relates to a hinge door arrester, particularly for vehicle doors, comprised of two hinge parts (2, 4), which are connected by a hinge pin (6) in a manner that permits them to swivel about a rotational axis (8) and between which a detent device (10) is integrated that defines different relative rotating positions. Said detent device (10) is comprised of at least one detent element (12), which is kinematically joined to the first hinge part (2) and which is spring-loaded in a radical working direction that is perpendicular to the rotational axis (8). The detent device is also comprised of a sliding surface (16), which is kinematically joined to the second hinge part (4), is provided essentially in the shape of a sector of a circle, is arranged, with regard to its radius of curvature, coaxial to the rotational axis (8), and which comprises at least one detent position (14) that interacts with the detent element (12).

Abstract: A pivot hinge assembly for pivotably supporting a linking column that pivots in linkage with a door in a door opening, and a folding pivot door assembly having such a hinge assembly are disclosed. The pivot hinge assembly includes a pivot pin, an elastic member urging the pivot pin downwards, a pivot pin holder having a through hole including a lower section for supporting the pivot pin vertically slidably and an upper section for accommodating the elastic member, and a closure for closing the upper end of the through hole. The elastic member is arranged with its upper end abutting the closure and its lower end abutting an upper face of the pivot pin for urging the pivot pin downward into engagement with a dent in the upper end face of the linking column.

Abstract: A two-piece clip includes a grommet and a pin. The grommet includes a plurality of elastic leg portions separately extending from a flange. The pin includes a shaft for radially expanding the elastic leg portions when the shaft is inserted among the elastic leg portions through the center hole. At an intermediate portion of the shaft, a temporarily locking piece and a locking protrusion are formed. Both ends of the temporarily locking portion are coupled with the shaft in a shaft direction to have a bridge-like shape. The temporarily locking piece protrudes in an outer radial direction. The locking protrusion is adjacent to the temporarily locking piece in a shaft tip end direction. An inner peripheral edge of the flange is engaged between the temporarily locking piece and the locking protrusion so that the pin is temporarily locked to the grommet.

Abstract: A zipper pull with a cover member, which has a simple structure and can be manufactured at a low cost, can realize a good and stable receiving and holding ability of a pull-tab over a long period of time, and also can prevent swinging between respective component parts, is provided.

Abstract: A stop device for upper stops and a pull of a Nylon zipper has an upper stop formed by a left stop and a right stop; a pull being installed on one end of a zipper strip. The upper end surfaces and the bottom of the left stop and right stop are formed with protruded stop blocks, and the pull has a left and a right teeth channels tops or bottoms of which are formed with stop grooves. When the left stop and right stop enter into the two upper teeth channels of the pull, the left stop and right stop enter into the stop grooves. Since the stop blocks are resisted by the stop grooves, the left stop and right stop are buckled in the pull. Moreover, the left stop and right stop have the function of preventing the pull from separating from the zipper strips.

Abstract: A sheet gripping assembly comprises an elongate member having a side defining inwardly extending wall portions defining confronting channels, and a gripping member of generally zigzag configuration manually manipulable to engage into said confronting channels to secure sheet material between the elongate members and the gripping member. The elongate member may have an elongated slot for positioning therealong a threaded fastener to secure the elongate member to a second structural member.

Abstract: A material having a unique, multi-colored appearance is described. More specifically, a material having a multi-colored appearance and a three-dimensional surface is described, along with a method of making such a material. The process involves providing a pile material having an upper portion of the pile yarns of a first color and a lower portion of the pile yarns of a second color that is visually distinct from the first color, then treating the material so as to displace at least some of the pile yarns to a different position with respect to the base web portion of the fabric from other of the pile yarns. In this way, the lower portions of at least some of the pile yarns are exposed, to provide a unique visual appearance as a result of the color differential, and a unique three dimensional appearance as a result of the difference between the position of the treated and untreated portions.

Abstract: A descaler is provided for descaling the scale on hot finished wire or green rod. The descaler comprises two rollers that are mounted to a rotatable support plate. The support plate and the rollers rotate in unison. One of the rollers pivots relative to the support plate such that the rollers can be positioned substantially parallel to allow wire to be easily fed between the rollers for set up purposes and can be positioned substantially perpendicular in which the rollers are arranged to effect wire descaling when wire is pulled through the descaler. Rotation of the roller support plate from the initial set up position automatically pivots the one roller into the working position. The pivoting movement of the one roller is accomplished using the tension of the wire that is created as the roller support plate is rotated and/or a cam mechanism.

Abstract: A simplified tool for removing and inserting a plumbing fixture seal, particularly for use with ball type faucets using a rubber seal engaged by a cylindrical compression spring. The tool comprises an outer housing; an inner member having a tapered end designed to frictionally engage the seal and spring, said member being reciprocally disposed within the outer housing, said inner member being retracted inside the outer housing by a retraction spring; and a means for extending the tapered end of the inner member beyond the end of the outer housing sufficient to engage the seal and spring.

Abstract: A clip driver in the present invention includes a base having a channel, a feed inlet, an elongated slot and an engagement hole; a follow member being combined in the channel and having a projection hooked by a first spring whose the other end hooking the engagement hole; an upper cap being pivoted on the base and having an elongated through groove and a hook block; and, an operation member being combined in the elongated through groove and connected with the upper cap by a second spring. Clips are filled into the channel from the feed inlet and urged by the follow member to advance close to each other. Only push the operation member forwards with fingers to push a foremost clip out to clip sheets of paper, whereby the clips can be displaced quickly and steadily to clip sheets of paper one by one in continuous operations.

Abstract: The invention concerns a clamping connection for an interchangeable mandrel (1) and drive shaft (13) of a riveting tool.

Abstract: A zipper guide for use in a slider insertion machine in which the zipper guide can be easily loaded with zipper tape without disassembly of the zipper guide. The slider insertion apparatus comprises: an assembly for inserting sliders onto a zipper tape; first and second shafts that are fixed relative to the assembly; a zipper guide for guiding the zipper tape during longitudinal movement of the zipper tape and supporting the zipper tape during slider insertion; and a retainer coupled to the first shaft and movable between first and second retainer positions. The zipper guide comprises a stationary part that is fixed relative to the assembly and comprises a first groove, and a rotatable part that is rotatable about the second shaft between first and second angular positions and comprises a second groove.

Abstract: Process to provide a surface with a fire-proof and/or wear resistant lining comprising the following steps: a) mechanically fixing anchoring means to the surface, which anchoring means are pre-coated with a coating that melts at a temperature in the range from 40 to 100° C.; b) applying a lining material onto the surface provided with the anchoring means; c) curing the lining material to obtain a solid mass; d) drying the lining, to a temperature at least sufficient to melt the coating on the anchoring means, to obtain a fire-proof and/or wear resistant lining. Anchoring means used in the process.

Abstract: A method of forming a stator for a brushless motor comprising providing a stator core having a generally rectangular body and having a plurality of teeth extending generally perpendicularly from a side of the body, and forming the stator core into a generally circular shape.

Abstract: An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electro-magnetic interference (EMI). The winding pattern involves segmenting each coil into first and second subcoil portions with differing pluralities of turns. Each subcoil portion is wound around separate pairs of spaced apart slots of a lamination stack. Adjacent coils are wound such that one subcoil portion of each is wound in a common slot to therefore form an overlapping arrangement of each pair of adjacently coils. The winding pattern serves to “shift” the resultant magnetic axes of each coil in such a manner so as to significantly reduce brush arcing and the EMI resulting therefrom. The reduction in EMI is sufficient to eliminate the need for EMI reducing components, such as chokes, which have typically been required to maintain EMI to acceptably low levels.

Abstract: The method of manufacturing a thin film magnetic head is capable of precisely forming a core section with preventing the variation of the write-core head caused by ion milling for removing an electric conductive film and capable of improving yield of products. The method of manufacturing a thin film magnetic head, in which a core section having prescribed write-core width is formed by applying ion milling to an upper magnetic pole and a lower magnetic pole, comprises the steps of examining the write-core width of the core section; covering a surface of the core section with a protection film except an electric conductive film for preventing electro static charge of a wafer; and removing the exposed electric conductive film by ion milling.

Abstract: A coated lead wire can be solidly connected to a terminal of a coil bobbin by placing the terminal entwined with the coated lead wire into between electrodes having heating portions, and heating the terminal entwined with the coated lead wire along with solder to melt the solder and burn off a coating layer of the coated lead wire while directing a blow of inert gas toward the terminal entwined with the coated lead wire between the electrodes. The coating layer carbonized as the result of being burned out by heating up the moving electrodes can be blown out without being mixed into the molten solder, consequently to add strength to the connection between the lead wire and the terminal, thereby to form reliable and firm connection between the lead wire and the terminal with ease.

Abstract: A method for manufacturing membranes after having defined the button key position circuit and matrix layout under the conditions of without jumping and without generating ghost keys includes the steps of: heating and pre-shrinking the PET of a membrane, printing a circuit made from silver paste on the membrane, printing an insulation layer on the printed silver paste circuit or printing carbon powders, folding the membrane and welding the membrane by supersonic wave, and finally punching structural holes on the membrane to complete the membrane production.

Abstract: An applicator for applying, to a plurality of sheets, spring-wire clips made of bent spring-wire having first and second end sections joined together by an elastically-deformable wire juncture section, the applicator comprises: a holder for holding a plurality of the spring-wire clips in a manner to successively feed them one at a time to a sheet-clipping station, with the wire juncture section facing one side of the sheet-clipping station; a driving member at the one side of the sheet-clipping station for engaging the clip in the sheet-clipping station and for driving the clip towards an other side of the sheet-clipping station; and at least one deflector located to engage at least one of the end sections of the clip in the sheet-clipping station driven by the driving member, and to deflect the engaged end section away from the other end section for spreading the end sections apart in order to receive the sheets at the other side of the sheet-clipping station to be clipped by the driven clip.

Abstract: Apparatus for making a cage having a number of peripheral and elongate components, and a wrapping component. The apparatus includes an elongate support frame, a mechanism for rotating the cage; a mechanism for dispensing the wrapping component onto the cage; a first carrier mounted on the frame tor holding at least one peripheral component; and a second carrier mounted on the frame for holding at least one peripheral component, including a mechanism for adjusting the position of the second carrier on the frame relative to the position of the first carrier.

Abstract: A zipper guide apparatus having different operational states. In the first operational state, the zipper tape is held securely, i.e., gripped, in a zone adjacent the slider insertion zone during slider insertion. In a second operational state, the zipper tape is not held securely in the zone adjacent the slider insertion zone and a slider can pass through the zipper guide during zipper tape advancement. These operational states are under the control of a programmable controller or other control device, which synchronizes zipper guide operation with operation of the slider inserter. The zipper guide comprises a saddle on which a zipper is seated and a pair of opposing grippers that extend to grip the zipper tape and that retract to release the zipper tape and allow passage of the zipper tape with sliders inserted thereon.

Abstract: An apparatus for inserting a slider onto a flexible zipper tape, comprising: a zipper tape guide that supports a section of zipper tape in a slider insertion zone and guides advancement of the zipper tape along a line; a mechanism for displacing a slider from a pre-insertion position to an inserted position on the section of the zipper tape located in the slider insertion zone; and a slider guide for guiding the slider from a transition point to the pre-insertion position. The slider guide is configured so that the slider travels along a generally U-shaped path in its transit from the transition point to the pre-insertion position. The slider guide may be a channel configured to maintain one end of the slider constantly in the lead as it moves along the channel.

Abstract: An RFID tag that includes a die having one or more connecting pads is assembled. A plurality of dies separated die from a wafer are attached to a support surface. The plurality of dies is transferred from the support surface to a substrate structure that includes a plurality of tag substrates.

Abstract: A method, system, and apparatus for a die frame, and for transferring integrated circuit dies therewith, is described. A ring shaped groove is formed in a first surface of a wafer around a plurality of dies. The wafer is scribed to form a grid of grooves in the first surface of the wafer that separates the plurality of dies. A solidifiable material is applied to the first surface of the wafer to substantially fill the ring shaped groove and the grooves of the grid. The solidifiable material is caused to harden into a ring shaped hardened material in the ring shaped groove and into a grid shaped hardened material in the grooves of the grid. The wafer is thinned so that the grid shaped hardened material removably holds the plurality of dies.

Abstract: A method and system for transferring a plurality of integrated circuit dies from a first surface to a second surface is described. The second surface is positioned to be closely adjacent to the first surface that has a plurality of dies attached thereto. A distance is reduced between the first surface and the second surface until the plurality of dies contact the second surface and attach to the second surface due to an adhesiveness of the second surface. The first surface and second surface are moved apart. The plurality of dies remain attached to the second surface.

Abstract: A method and system for transferring a plurality of integrated circuit dies from a first surface to a second surface is described. Each hollow barrel of a plurality of hollow barrels is applied to a respective die residing on the first surface. The respective die is caused to move into each hollow barrel in parallel. These steps are repeated until each hollow barrel contains a stack of dies of a predetermined number. A die from each hollow barrel is deposited onto the second surface until the stack of dies contained by each hollow barrel is substantially depleted.

Abstract: A method, system, and apparatus for a die frame, and for transferring integrated circuit dies therewith, is described. In one aspect for making a die frame, a wafer that comprises a plurality of dies is attached to a surface of a tape structure. A grid of grooves is formed in the wafer to separate the plurality of dies on the surface of the tape structure. A portion of the tape structure that is accessible through the grooves of the grid is caused to harden into a grid shaped structure. The grid shaped structure removably holds the plurality of dies. One or more dies of the plurality of dies can be moved from the grid shaped structure onto a target surface. In an alternative aspect, when the grid of grooves is formed in the wafer to separate the plurality of dies on the surface of the tape structure, the surface of the tape structure is breached in the grooves.

Abstract: A weld wire for storage on a spool of weld wire. The weld wire has a substantially linear cast in the form of an undulating curve that generally lies in a single plane. The undulating curve is a succession of generally semi-circular sections having a generally fixed radius of curvature. The linear cast is formed on the weld wire prior to the weld wire being wound on the spool of weld wire. The linear cast is at least partially retained on the weld wire after the weld wire is unwound from the spool and during the feeding of the weld wire through a welding machine.

Abstract: An apparatus and method are provided that increases the efficiency of material handling apparatus, such as those used to trim and form electrical leads on solid state electrical devices. The apparatus includes a plurality of rotatable pulleys, an endless belt capable of retaining devices to be processed that is disposed around the pulleys such that rotation of the pulleys will cause said belt to travel around said pulleys, and a plurality of paired tooling members, each of said paired tooling members having first and second tooling members disposed on opposing sides of the belt and directly opposing so as to cooperate and perform a tooling operation on the leads when reciprocated toward each other along a common axis. In a preferred embodiment, two horizontally aligned pulleys with vertical axes of rotation are used to rotate the belt in a horizontal plane.

Abstract: A component mounting system includes first to third (pickup, transfer, and placement) stations. A component supplied at the component supply is picked up by a transport head at the pickup station and then transferred to a placement head at the transfer station. The placement head carries the component to the placement station where the component is placed and mounted on a substrate such as circuit board. The component held by the placement head is recognized by an imaging device at or in the vicinity of the transfer station.

Abstract: A method and apparatus for manufacturing an electrical connection unit and connector array is provided. Such arrays may be used to solder together traces from opposed circuit boards, in which the array is fitted between, and soldered to the boards to complete a circuit. The method of manufacturing a connection unit includes providing a first insulative base with one or more contacts or contact groups extending from the first side towards the second side of the base. Solder portions or solder balls may be reflowed to contacts at their termination points. An apparatus and method may provide a solder positioning device or means on top of or adjacent to the first insulative base, so that solder portions or solder balls are placed within cavities in the positioning device, in alignment with apertures of the first insulative base. The connection unit may be heated to reflow and fuse the solder portions to the contact termination, thereby constructing an array.

Abstract: A method of connecting an electronic part, containing: forming an electroless nickel plating coat containing phosphorous on a substrate metal layer which constitutes a connecting terminal of an electronic part; and carrying out connecting to the nickel plating coat through a lead-free solder, wherein a half-width of X-ray diffraction of a (111) plane of Ni crystal in the nickel plating coat is 5 degrees or less.

Abstract: The present invention provides a method for manufacturing a conductive paste. The method includes deforming conductive particles so that a deformation degree is 1.01 to 1.5 by application of a stress to the conductive particles and mixing the deformed conductive particles with a binder that includes a thermosetting resin as the main component. The deformation degree is determined by dividing an average diameter of the conductive particles after deformation by an average diameter of the conductive particles before deformation, where the average diameter is measured by a laser diffraction method. The use of this conductive paste for a prepreg sheet having limited compressibility can suppress a short circuit between via holes and the degradation of insulation properties.

Abstract: A multilayered circuit board and a method of forming the multilayer circuit board are provided. In a first circuit forming process P1p, a first circuit 12a is formed on an insulating board 11a with a conductor 12a; in a circuit embedding process P2p, the first circuit 12a is embedded in the insulating board 11a so as to have a predetermined surface flatness S and a predetermined parallelism P; in a masking process P4p, a pilot hole 15, 20 for a via hole 4, 4a is masked at a part of the surface of the circuit 12a; in an insulating layer forming process P5p, an insulating material 11b is applied as a layer to the surface except the mask 14; in an insulating material layer flattening process, the surface of the insulating material layer 11b is flattened so as to have the predetermined surface flatness S and the predetermined parallelism P; and in a pilot hole forming process, the mask 14 is removed.