Abstract: A permeable base transistor includes a source region and a drain region confronting each other in a semi-insulating semiconductor layer, a gate electrode having a current penetrating aperture through which a channel current flows disposed between the source region and the drain region and the source and drain regions, and the gate electrode are disposed so that the channel current flows transverse to the thickness of the semi-insulating semiconductor layer.

Abstract: A method of making a field effect transistor includes forming an active layer in a semiconductor substrate, forming a gate material on a portion of the surface as an ion implantation mask, implanting dopant ions to form a source region, depositing a first mask over the source region and a portion of the gate material, and removing the unmasked gate material to define a gate electrode. A second mask is deposited adjacent the gate electrode opposite the source region, and dopant impurities are implanted to form a drain region using the mask. The source and drain regions are asymmetrically doped and the gate electrode is asymmetrically disposed relative to the source and drain regions in the self-aligning process.

Abstract: A production method of a semiconductor device includes a first process for producing a gate electrode pattern of double layer structure on a semiconductor substrate, which gate electrode pattern comprises a first layer and a second upper heat-resistant material layers each having different etching property, a second process for plating a resist film on the entire surface of the substrate and etching the same to expose the top portion of the second upper heat-resistant material layer, a third process for removing the second upper heat-resistant material layer, a fourth process for hardening the surface of the resist and conducting over development of the resist, and a fifth process for plating a low resistance metal material on the entire surface of the substrate and removing the low resistance metal material together with the resist film by lift-off method, thereby to produce a gate electrode comprising the first lower heat-resistant material layer and a low resistance metal layer which is produced thereon, w

Abstract: A closed type connecting block including a shutter which close and open an opening formed on a housing and which is biased toward a position to close the opening. The shutter and the housing are formed with notches which sealingly receive a core inserted into the connecting block therebetween. The connecting block also includes a pivotable jack mounted therein to enable users to easily insert and remove a plug connected to the cord from communication equipment.

Abstract: A connecting block for electrically connecting a plug of a telephone set to a telephone line includes a base plate having a terminal for connection to the telephone line, a jack unit including a jack having an opening for inserting the plug thereinto, the jack unit having parallel side walls across the jack opening, a pair of parallel retaining members extending upwardly from side edges of the base plate for removably retaining the jack unit therebetween, and a cover for enclosing the retaining members, the jack unit and the terminal, the cover having a window to which the jack opening may be exposed. The arrangement of the jack unit and the retaining members is such that the jack opening may selectively extend parallel to the base plate or perpendicular thereto.

Abstract: An integrated circuit includes a semi-insulating semiconductor substrate; a first conductivity type high dopant concentration buried layer produced in the semi-insulating substrate; second conductivity type high dopant concentration drain and source regions produced at the surface of the semi-insulating substrate; a gate electrode produced on the surface of the semi-insulating substrate at a position between the drain and source regions; a second conductivity type channel layer produced between the drain and source regions; and a first conductivity type low dopant concentration region produced only below the second conductivity type channel layer between the second conductivity type drain and source regions in the first conductivity type high dopant concentration region; the drain and source regions being completely surrounded by the first conductivity type high dopant concentration buried layer from the bottom and outer side surfaces thereof.

Abstract: An electrical connector includes contacts to be connected to lead wires and a housing having apertures for receiving the contacts. The lead wires are connected to the contacts when the contacts are forced into the apertures of the housing. Each of the contacts comprises at one end a contact element to be in contact with an external terminal and at the other end a connection portion formed with a lead aperture through which a lead wire passes and with a slit continuous with the lead aperture. Edges of the slit pierce into an insulating coating of the lead wire and connect with a core of the lead wire under pressure.

Abstract: A driving apparatus for effecting linear movement of an industrial robot comprises a slide member axially slidably disposed within a frame, a ball nut secured to the slide member and a ball screw threaded through the ball nut and rotationally driven relative to the ball nut to effect linear movement of the ball nut along the ball screw accompanied by linear movement of the slide shaft. A bracket is adjustably mounted on the frame for rotatably supporting the shaft of the ball screw. The bracket can be displaced relative to the frame in the transverse direction of the slide member to align the axis of the ball screw with the axis of the slide member during assembly of the apparatus. A thrust bearing is disposed between the shaft of the ball screw and the bracket to absorb radial displacement and strain of the ball screw shaft.

Abstract: A support mechanism for a cylindrical coordinate type industrial robot comprising a stationary upstanding tubular outer member and a displaceable inner member supported within the outer member to undergo axial displacement in upward and downward directions and angular displacement in clockwise and counterclockwise directions. The supporting mechanism includes a bearing interposed between the inner and outer members, the bearing including a retaining member rollably retaining thereon a plurality of rollable elements. An elastic balancing and restoring device for applying elastic biasing forces in opposite axial directions to the upper and lower ends of the retainer member is operative in the event the retainer member fails to maintain proportionate displacement with the inner member to temporarily increase the magnitude of the force difference between the oppositely directed elastic biasing forces in a direction effective to restore the proportionate displacement.

Abstract: An industrial robot has a head movable in first and second orthogonal directions within a working area to manipulate a workpiece. The industrial robot comprises a stationary base extending along the first direction, an intermediary base slidably disposed on the stationary base to move along the first direction, and a slider slidably disposed on the intermediary base and to move along the second direction. The slider has a supporting portion which extends towards the working area and which supports the head thereon so that the supporting portion positions the head within the working area remotely from the stationary base and the intermediary base.

Abstract: A linear transfer device for wafery works comprising: a work supporting means provided each in a work supplying station, one or more working stations and a work discharging station, which supports the works in erect positions in front thereof, the stations being linearly arranged with equal distances; a feeding means for axially feeding the work supporting means; a transfer bar capable of moving horizontally and vertically and holding means provided on the transfer bar which are adapted to face to the stations and have a pair of supporting grooves in order to support the work in an erect position, characterized in that the delivery or reception of the work supported by each work supporting means or each holding means can be made only by the vertical movement of the transfer bar relatively to each station and that the work supporting means can locate at the retreated positions in order to prevent from interfering with the holding means when the transfer bar is in movement.

Abstract: Wafery works receiving or delivering device comprise a work supporting means having plural pairs of supporting grooves of a given pitch in order to support a column of wafery works; a transfer mechanism having the work supporting means mounted at the upper end thereof and reciprocatable between a stand-by position and a work receiving or delivering position; a pair of forks disposed in the region of the work receiving or delivering position and having supporting grooves of the same pitch as those of the work supporting means; a fork advancing mechanism such that for advancing the forks to the work receiving or delivering position such that the forks overlap the work supporting means and the supporting grooves thereof align with those of the work supporting means; and a mechanism which collectively hands over the works supported on the work supporting means or on the forks to the forks or the work supporting means by moving the work supporting means upward or downward relative to the forks.

Abstract: A protein hydrolyzate having a high free amino acid content and an excellent flavor can be obtained when salt-resistant lactic acid bacteria are additionally used in the absence or presence of at most 12 percent by weight of sodium chloride based on a volume of an aqueous medium in obtaining the protein hydrolyzate from proteinaceous materials by hydrolysis with proteolytic enzymes.