Abstract: A method for polishing a semiconductor wafer, which can prevent from occurring a sloped edge at a peripheral portion of the semiconductor wafer and produce a semiconductor wafer of high-flatness, is provided.The polishing method utilizes a polishing block consisting of a ceramic plate 11, a backing pad 12 and a template 13. The backing pad 12 has a larger compression rate than that of the polishing cloth 2. The polishing block 1 is mounted on a semiconductor wafer 3. The semiconductor wafer 3 is pressed against the polishing cloth 2 to perform the polishing.

Abstract: A built-up partition wall framework system for building up partition wall frameworks in a building, including a plurality of main wall panels, a plurality of main wall panel coupling hook plates for connecting the main wall panels in parallel, a plurality of top channel rails for fastening to joined main wall panels at a top side, a plurality of bottom channel rails for fastening joined main wall panels at a bottom side, a plurality of channel-like latch pins for securing the top channel rails to the main wall panels, a plurality of wedge blocks for mounting between the bottom channel rails and the floor, a plurality of first side covers and second side covers for fastening to lateral sides of constructed partition wall frameworks, a plurality of mounting supports for securing constructed partition wall frameworks to vertical walls of the building, a plurality of T-wall external coupling hook plates, wall end coupling hook plates, internal angle coupling hook plate external angle coupling hook plates and wall

Abstract: An automatic vehicle power and headlight controlling device with delay effect, including a delay circuit, an in-car sensing circuit, an out-car sensing circuit and a power supply circuit. The delay circuit is connected to both the in-car sensing circuit and the power supply circuit, while the out-car sensing circuit is connected to the in-car sensing circuit and powered thereby. After the delay circuit works, the in-car sensing circuit and the power supply circuit are delayedly energized. Only when the in-car sensing circuit works, the out-car sensing circuit is energized. Accordingly, at the stage of initially starting the vehicle, the excessive load on the battery is avoided so that the damage of the battery resulting from the excessive load can be obviated.

Abstract: A bicycle front fork packing structure including a tapered ball bearing mounted around the top coupling tube of the front fork and connected between the vertical tube of the handlebar stem and the head tube and having a tapered center through hole, a tapered screw cap threaded onto the externally threaded bottom end of the vertical tube of the handlebar stem and covering the tapered ball bearing and having an inside annular groove, a split packing ring mounted within the tapered screw cap and the ball bearing and forced into engagement between the head tube and the top coupling tube of the front fork and having an outside annular flange forced into engagement with the inside annular groove of the tapered screw cap.

Abstract: A crescent wrench in which the fixed jaw and the movable jaw have a respective corrugated work face at an inner side facing each other for grasping nuts and bolts, and a respective linear measure mark, for example, inch mark or centimeter mark for linear measurement, the corrugated work face formed into smoothly curved transverse projections and transverse grooves alternatively arranged.

Abstract: A vehicle internal rear-view mirror assembly includes a base frame mounted inside a motor vehicle between the driver's seat and the windshield glass, two retractable coupling tubes coupled to the base frame at two opposite sides, and two rear-view mirrors respectively coupled to the retractable coupling tubes by universal joints, each rear-view mirror being marked with a reference angle sign, which coincides with a respective angle sign at one front door window of the motor vehicle when the respective rear-view mirror is adjusted to a predetermined angle to reflect traffic approaching from one side, and a plurality of vertical vehicle speed reference lines through which the driver can estimate the speed of the motor vehicle approaching from behind.

Abstract: A method for producing an adhered or sealed anodized aluminum product or a glass product surface-treated by metal or a metal compound, by using as adhesive or sealant a curable composition, in an adhering treatment or sealing treatment of an adhesion substrate composed of anodized aluminum or glass surface-treated by metal or a metal compound, wherein the curable composition comprising (A) a saturated hydrocarbon polymer having at least one silicon-containing group crosslinkable by forming a siloxane bond and having a hydroxyl group or a hydrolyzable group bonded to the silicon atom, and (B) a silane coupling agent selected from a group comprising an epoxy group-containing silane coupling agent and an isocyanate group-containing silane coupling agent.

Abstract: A lithium secondary battery comprising a positive electrode composed of a positive electrode active material comprising an oxide compound comprising at least Li and Ni, and a negative electrode comprising an Li--Ag--Te alloy, a positive electrode active material for a lithium secondary battery, which is composed of an oxide compound represented by the formula: LiNi.sub.w Al.sub.x P.sub.y O.sub.z wherein 0.80<w<1.10, 0<x<0.015, 0<y<0.03 and 1.8.ltoreq.z.ltoreq.2.2, and a lithium secondary battery comprising said positive electrode active material. The lithium secondary battery of the present invention shows large charge-discharge capacity, high energy density, less degradation by the repetitive charge-discharge and is superior in cycle property. The positive electrode active material of the present invention, which is composed of an oxide compound represented by the formula: LiNi.sub.w Al.sub.x P.sub.y O.sub.

Abstract: A shock absorber including a fixed shaft, an adjustment shaft sleeved onto one end of the fixed shaft, an adjustment knob threaded onto the adjustment shaft, and a shock absorbing coil spring connected between the fixed shaft and the adjustment knob, wherein steel balls are moved in an annular groove on the adjustment knob around the adjustment shaft, and a cap is covered over the steel balls and having an upper Part retained between the inner diameter of the shock absorbing coil spring and the outer diameter of the adjustment shaft for permitting the shock absorbing coil spring to be compressed without being twisted when the adjustment knob is turned upwards.

Abstract: A thread wheel including a top wheel base and bottom wheel base connected together and fastened to a center shaft of an automatic thread storage and feeding unit of a knitting machine. The top and bottom wheels have a respective set of equiangularly spaced radial locating holes. A plurality of supporting elements are connected between the locating holes of the top wheel base and the locating holes of the bottom wheel base for guiding thread in and out and for storing thread. The supporting elements are respectively made from an elongated flat plate, each supporting element having two rectangular ends respectively fitted into the locating holes of the top wheel base and the locating holes of the bottom wheel base.

Abstract: A crescent wrench including a steel ball mounted in a hole in a handle and forced by a spring to hold down a movable jaw, a nut mounted in an opening in the handle and turned with the thumb to move a screw rod relative to the movable jaw, permitting the movable jaw to be released from the constraint and moved relative to a fixed jaw at the front end of the handle, or held down at the desired position.

Abstract: A process for crystallizing N.sup.2 -((S)-1-ethoxycarbonyl-3-phenylpropyl)-N.sup.6 -trifluoroacetyl-L-lysyl-L-proline using one or a mixture of at least two kinds of compound having the general formula: CR.sup.1 R.sup.2 R.sup.3 R.sup.4 as a crystallizing solvent, optionally with an auxiliary solvent which controls crystallization condition.

Abstract: A mechanical assembly of shaft and static pressure bearing including a static pressure bearing mechanism formed in a shaft. The bearing mechanism includes an air supply chamber, a plurality of air conduits, a plurality of porous bodies each secured in a respective one of the plurality of air conduits, a glass layer applied on outer surfaces of the porous bodies as well as on an end face of the shaft, a plurality of pockets formed in the glass layer at positions corresponding to the air conduits, and a plurality of orifices formed in each of the plurality of pockets such that a gap formed between the glass layer and a bearing main body is communicated with the air supply chamber by the pockets, orifices and porous bodies. The pockets and orifices can be formed simultaneously by a laser machining. A distribution in pressure within a gap formed between the glass layer and a bearing main body can be uniform.

Abstract: A single-crystal semiconductor pulling apparatus improves the crystallization rate by reinforcing the physical strength of the Dash's neck portion, and eliminate the process time difference depending on the experiences of operators. The single-crystal semiconductor pulling apparatus, which is according to the Czochralski method, includes controller for automatically controlling the pulling rate of a seed crystal and a melt temperature. The controller modifies a target value of a diameter of a crystal grown from the seed which is immersed from a first value to a second value. The first value is for ensuring dislocation-free state, while the second value is for retaining physical strength of the crystal. Furthermore, the controller is provided with the function of judging the crystal to be in dislocation-free state.

Abstract: A semiconductor single crystal ingot cutting jig is shaped as a cylinder having a diameter approximately equal to an ingot diameter. A recess is provided at one end of the jig for receiving a head (or tail) of the ingot. An adhesive is provided in the recess so as to adhere the ingot to the jig when the head (or tail) of the ingot is inserted into the recess. Then, the ingot is fixed on a bed of a band-saw slicing machine. The head (or tail) of the ingot is fixed on the jig and thus will not overturn at the time just before finishing the cutting or at the end of cutting. This can prevent a blade of a band saw slicing machine from being damaged.