Abstract: The present invention is applied to a slotted waveguide antenna assembly which comprises a slotted waveguide having a plurality of slots, a reflector having an aperture in front of the slotted waveguide and reflecting radiated electromagnetic wave for forming directive beam, and a mounting portion for mounting the antenna assembly onto a place where the antenna assembly is to be installed.In such an antenna assembly, a fixing member is provided on the reflector at a position spaced from the slotted waveguide. The fixing member extends between the opposite walls of the reflector and fixed thereto. The fixing member has an end which projects outwardly from the wall of the reflector to form the mounting portion. The fixing member is sufficiently thin as compared with the working wavelength.The slotted waveguide antenna assembly may have a dielectric wave-guiding arrangement.

Abstract: A method for immunological assay of IgM antibodies against at least one said antigen in a liquid sample containing at least IgM and IgG antibodies, such as a biological fluid, comprising reaction of said liquid sample and of antibodies against IgG, and addition to the so obtained reaction product of the said antigen bound to finely divided particles and of a free said antigen, the amount of IgM being inversely proportional to the amount of unagglutinated finely divided particles.

Abstract: Disclosed is a method for packaging a number of disc-like information recording media each having a hole at its center portion. The disc-like information recording media are collected with the holes thereof being aligned with each other to form a cylindrical assembly with a through-hole, and an elongated member is inserted into the through-hole and a pair of collars are set on the elongated member from both ends thereof so as to fix the cylindrical assembly with respect to the elongated member. Thereafter, the cylindrical assembly is wrapped by a shrinkable material and encased in a container comprising upper and lower halves each having at least one assembly-receiving portion with a configuration substantially equal in dimension to the semicylindrical half portion of the cylindrical assembly. The container has an engaging arrangement comprising L-shaped extending portions and L-shaped shelf portions so that the upper and lower halves are stably coupled to each other.

Abstract: Fabrication of an electronic circuit board is carried out by forming a predetermined number of resistors having various resistances based on a circuit design stored in a memory on a nonconductive substrate and dividing the nonconductive substrate into discrete resistors, then mounting the discrete resistors on a circuit board and testing operation characteristic thereof; and when some resistors having resistances which are not suitable to obtain a predetermined operation characteristic exist in the above-formed resistors, the resistances are corrected, and electronic circuit board having corrected accurate electric constants is obtained; and thereby a complete electronic circuit boards are fabricated by repetition of above-mentioned respective steps.

Abstract: A pliers-type tool with two handles has a parallel mechanism carrying two carrier members for working jaws. The mechanism comprises two cross-wise arranged guide lever means and one of the carrier members or one of the guide lever means is merged with one of the handles to a rigid tool body. A resilient member may be interposed, also in tools not having a parallel mechanism, between a link connecting the two handles and a counter-element in order to compensate for inaccuracies and/or to enable an extra push at the end of a closing movement of the handles.

Abstract: A liquid, essentially anhydrous solution of hydrogen peroxide in at least one organic solvent is employed in therapeutic and cosmetic formulations. The solution contains from 1 to 20 weight percent hydrogen peroxide and less than 1 weight percent water. The therapeutic formulation can be used in the treatment of acne, dermatoses, ulcers and in the lightening and disinfection of the skin. The cosmetic formulations can be used in the bleaching or oxidation dyeing of hair or in the neutralization stage of a permanent wave operation or in the straightening of hair.

Abstract: The system provides a relatively inexpensive raster-scan type graphics system capable of real time operation, utilizing logic-enhanced pixels within an image buffer, permitting parallel (simultaneous) calculations at every pixel. A typical implementation would be as custom VLSI chips. Each cell of the image buffer corresponds to a pixel of the display, and a processor at each cell enables calculation of the pixel color and the like for each polygon in the image covering that same pixel (cell) of the display. In the sequence of most general applications, each polygon is operated upon in sequence, and the image is built up as the polygons are processed without the necessity of sorting.

Abstract: A fuel injection system for an internal combustion engine provided with a turbo-charger and an ignition retard control system responsive to a signal from knocking sensor for controlling knocking. A system is provided for attaining a fuel enrichment correction at a predetermined range of engine conditions for preventing an increase in a temperature of the exhaust gas. The enrichment is delayed for a predetermined period after moving into that range, to obtain a high fuel economy. A system is further provided for cancelling the enrichment delay when the engine is under a particular condition where the exhaust gas temperature is very apt to be increased. Such a condition is detected by an enrichment correction value or ignition retard correction value which is larger than a threshold value.

Abstract: In a semiconductor IC, a vertical pnp or npn transistor of a uniform characteristic and a high breakdown voltage is made by forming, for example, a p.sup.- -collector region (39) in an n-type epitaxial region, an n-well base region (41) formed in the p.sup.- -collector region (39) and a p-emitter region (42) formed in the n-well base region (41); and furthermore, for example as shown in FIG. 9, p.sup.- -regions (40) and (49) are formed simultaneously with the p.sup.- -collector region (39) and an n-region (53) is formed simultaneously with the n-well base region (41), thereby constituting IIL of superior characteristics and a high resistance device at the same time as forming of the vertical transistor without substantial increase of manufacturing steps; and in the similar way, by combining the p.sup.- -region and n-region formed in the above-mentioned simultaneous steps with other region formed simultaneously with the forming of the vertical transistor, high h.sub.

Abstract: A pressure treatment chamber comprising an enclosure whose interior is maintained at predetermined pressure and temperature conditions, the enclosure defining at least one access port, a rotary feeder disposed within the enclosure and being maintained at the pressure and temperature conditions of the interior thereof and communicating with the access port via a conduit extending through the enclosure and filled with a condensible gas substantially to the exclusion of atmospheric air, and pressurized fluid sealing apparatus coupled to the conduit for providing communication between the conduit and the rotary feeder while reducing the amount of gas transfer between the interior and exterior of the enclosure.

Abstract: The invention provides poly(.alpha.-hydroxy-carboxylic acid)/poly(oxyalkylene) polymers selected from multiblock polymers of the following repeating unit I ##STR1## wherein R is an alkylene group, R.sub.1 is hydrogen or methyl groups, m is a positive integer, and a and b are zero or positive integers, the case where a and b are simultaneously zero being excluded, and chain extended multiblock polymers which polymers are bioabsorbable and biodegradable, these polymeric materials being derived from reacting diols in the form of polyether glycols with .alpha.-hydroxy-carboxylic acids. The invention also provides methods for the preparation of such polymeric materials and bioabsorbable surgical articles made therefrom.

Abstract: An optical disk comprising a disk-like body having two base plates made of synthetic resin and two recording layers formed on the base plates, respectively. The body is formed by bonding the base plates, with a spacer interposed therebetween, such that the recording layers face each other. The disk further comprises two centering members, each projecting from the surface of the center portion of each base plate. Each centering member is made of synthetic resin, and one magnetic member is mounted on the centering member. The centering member is inserted in a hole formed in the center portion of the body. The centering member has a center hole defining the center of rotation of the body, and also a recess for holding the magnetic member. Four through-holes are formed in the bottom of the recess. The magnetic member has four projections and is held in the recess, with the projections inserted into the through-holes of the bottom of the recess.

Abstract: An optical fiber unit for forming high-density optical cables in optical communication networks includes a core body having a twisted tensile strength member extended along the central axis thereof, spiral grooves in the outer surface thereof, and tape-shaped optical fibers placed in the spiral grooves of the core body, with the twist direction of the twisted member and the spiral direction of the grooves being opposite one another. Thus, when the core body is under tension, the angular moment produced in the tensile strength member and that produced in the ribs formed between the spiral grooves are opposite in direction and equal in magnitude, whereby the angular moment of the entire core body is substantially zero. As a result, the optical fiber residual strain produced during manufacture can be controlled with high precision.

Abstract: A method of forming a support for use with a primary catalyst for conversion of a feed stream comprising carbon monoxide and hydrogen into hydrocarbons is disclosed.A primary catalyst and a method of manufacturing the catalyst is also disclosed.Furthermore, a secondary catalyst for the production of branched chain alkenes from straight chain alkenes is also disclosed, together with methods of manufacturing the secondary catalyst.

Abstract: Apparatus and method for extracting cataract tissue in which the cataract is first softened by focusing laser radiation thereon and subsequently a tube inserted through an incision to a position adjacent the cataract. An irrigating liquid is supplied through one portion of the tube and the liquid and cataract fragments removed via an aspirating opening adjacent the tube opening. Fragments which do not readily pass through the aspirating opening are dislodged by vibration or broken up by a paddle like member pivotally mounted adjacent the aspirating opening to engage the fragment and apply a force to break up the same.

Abstract: This invention concerns an anti-jamming device for chain saws.Balls (4) alternating on either side of the side plates (2 and 3) are housed in holes 1a) provided in the central web, (1), bear into spherical cavities (2a or 3a) provided on the internal side of the side plates (2 or 3) and extend on the outside through holes provided in the other side plate (2 or 3).

Abstract: A process for the gas phase polymerization of vinyl chloride, which comprises homopolymerizing monomeric vinyl chloride or copolymerizing monomeric vinyl chloride with a monomer copolymerizable therewith in the gas phase at a polymerization temperature of 55.degree. C. to 65.degree. C. under such conditions that the ratio Pr of the polymerization pressure to the saturated vapor pressure at the polymerization temperature is in the range of 1>Pr>0.5, wherein a mixture comprising diisopropylperoxy dicarbonate and di-2-ethoxyethylperoxy dicarbonate at a weight ratio of from 3/2 to 85/15 is used as the initiator.

Abstract: According to a portable medium (IC card) of this invention, a memory area is divided into a system program area and a user program area. A text transmitted between the IC card and a host system connected thereto includes a command text and a response text. The command or response text includes a flag indicating that the text is written in the user program area or the system program area. The memory area has a conversion table for a function code and the start address of a program corresponding to the function code. The conversion table is looked up using the given function code as a parameter, thereby obtaining the start address of the corresponding program. The memory area has a correspondence table between a newly added function code and the start address of an added function program. The added function program is selectively executed.