Abstract: Provided is a precursor for the preparation of a lithium transition metal oxide that is used for the preparation of a lithium transition metal oxide as a cathode active material for a lithium secondary battery, through a reaction with a lithium-containing compound, wherein the precursor contains two or more transition metals, and sulfate ion (SO4)-containing salt ions derived from a transition metal salt for the preparation of the precursor have a content of 0.1 to 0.7% by weight, based on the total weight of the precursor.

Abstract: A vehicle frame structure allowing a footrest to support an even larger force. A foot operation zone and a driver's footrest are disposed between a lower cross member disposed so as to extend laterally across front ends of a pair of left and right lower main frames and an upper cross member disposed upward of, and extending in parallel with, the lower cross member. Connection frames connecting the lower cross member with the upper cross member are disposed between the foot operation zone and the driver's footrest.

Abstract: The present invention provides a novel complex lipid having a cationic functional group derived from an amino acid. Namely, the present invention provides a cationic acid amino acid type lipid represented by the following formula: wherein, R1 is a hydrocarbon group having a cationic functional group derived from an amino acid, R2 and R3 are each independently a chain hydrocarbon group, A1 and A2 are each independently a linkage group selected from the group consisting of —COO—, —OCO—, —CONH— and NHCO—, and n is an integer of 2 to 4.

Abstract: A heavy duty tire comprises a carcass ply turned up around a bead core in each bead portion to form a pair of turnup portions and a main portion, and a bead reinforcing layer disposed in the bead portion and comprising an axially outer part and an axially inner part, wherein under a 50 kPa state of the tire in which the tire is mounted on a standard rim and inflated to 50 kpa: the turnup portion inclines towards the carcass ply main portion at an angle of less than 90 degrees; the distance La of the end of the turnup portion from the radially outer side of the bead core is in a range of from 5 to 12 mm; the radial height Ho of the axially outer part is in a range of from 20 to 35 mm; the distance To of the end of the axially outer part from the axially outer surface of the bead portion is in a range of from 6 to 12 mm; and the ratio To/Ho of the distance To to the height Ho is in a range of from 0.25 to 0.5.

Abstract: A process for preparing a poly-ethynyl-substituted aromatic compound characterized by reacting a halogenated benzene with an ethynylzinc halide; a process for preparing a poly-ethynyl-substituted aromatic compound characterized by using a halogenated benzene having at least two kinds of halogen atoms as a halogenated benzene, and (A) reacting one kind of the halogen atoms existing in the halogenated benzene with an ethynyl group-containing compound; and (B) reacting the other kind of halogen atoms remaining in the formed compound with an ethynylzinc halide.

Abstract: A solid-state electrolytic capacitor and its producing method are disclosed. First, a capacitor element containing conducting polymer as the electrolyte sucks non-conjugate polymer precursors solution and the polymeric precursor polymerizes and crosslinks. Therefore, the conducting polymer combines non-conjugate polymer into a kind of interpenetration or semi-interpenetration network polymer material. Finally complete the manufacture of the capacitor by sealing the capacitor, and conducting the age process.

Abstract: A damping material for use in a loudspeaker enclosure to enhance sonic properties of the enclosure. The material for use in the enclosure is kapok, a fibrous material with a relatively low density. By incorporating the kapok within the enclosure, either standing alone or in combination with other materials known to function as acoustic dampers, the overall result is that the sonic quality of the speaker system is increased and may also be reduced in size without sonic compromise.

Abstract: The present invention relates to a ceramic fiber yarn, which has higher weaving and knitting performance. The ceramic fiber yarn comprises a group of filaments, the filaments being made by the steps of spinning mother liquid, which comprises colloidal silica and basic aluminum chloride, and firing, the filaments comprising 67-75 wt % of alumina and 25-33 wt % of silica and mainly having polycrystalline transition alumina, and is characterized in that: the loop strength of each the filament, which is measured by a wire having diameter of 0.5 mm, is at or greater than 2.5.times.10.sup.-2 N (N: Newton); and the crystal structure of the filament substantially changes to polycrystalline mullite after heating for 30 minutes at the temperature of 1,400.degree. C.

Abstract: A silver halide color photographic material containing new dye image-forming couplers consisting of polymer couplers obtained by a polymerization reaction which employs a chain transfer agent having 8 or more carbon atoms. The silver halide color photographic material exhibits a high sensitivity and a high color-forming property.

Abstract: A word processing apparatus includes a random access memory for temporarily storing the document data, and a floppy disc for permanently memorizing the document data. A character number counter is included in the word processing apparatus, which develops a control signal when, for example, 100 stroke key input operation is conducted through a keyboard panel. In response to the control signal, the document data temporarily stored in the random access memory is transferred to the floppy disc for updating the document data memorized in the floppy disc.

Abstract: An automatic brightness limiter circuit is disclosed in which a separate digital signal display from a personal computer is superimposed on a television broadcast screen and displayed simultaneously with a video broadcast signal. The beam current of the cathode ray tube is detected and if found to exceed a prescribed value, feedback is applied only to the video amplifier circuit amplifying the video signal. Feedback is not applied to the amplifier circuit of the digital signal display. The amplifier of this digital signal display is arranged so that independent limiting action is carried out corresponding to the amplitude of the digital signal.

Abstract: Reducing the content of iodine in an aqueous brine solution to less than 1 ppm prior to electrolysis in an electrolytic cell separated into an anode chamber and a cathode chamber by a cation exchange membrane improves the electrolytic performance thereof.

Abstract: A data recorder for recording data in the form of audio or digital signals into a cassette tape comprises a first circuit for recording check signals and a second circuit for recording true signals. The first circuit allows the check signals to be recorded in a first section of the cassette tape to check the amplitude of a sound volume in which the check signals are sounded. The second circuit enables the true signals to be recorded in a second section of the cassette tape under the condition that the amplitude of the sound volume of the check signals is adequately adjusted. A data reader for reading out the thus recorded data includes a first detection circuit for determining whether the read-out signals have a sufficient level for reading out purposes, an announcing device for announcing the need to adjust a sound volume, and a read-out circuit for reading out true data from the cassette tape.

Abstract: A power supply circuit supplies a liquid crystal energizing circuit with desired potentials for the purposes of energizing a liquid crystal display in accordance with combinations between first, second, third and reference potentials.