Abstract: A picture generation apparatus includes: a light source substrate on which a light source is mounted; an optical member through which light emitted from the light source is transmitted; a display device configured to form, by the light transmitted through the optical member, light for generating a predetermined picture; a heat sink configured to dissipate heat generated from the light source substrate; and a lens holder configured to hold the optical member. The lens holder includes first engagement portions, and the heat sink includes second engagement portions. Each of the first engagement portions and a respective one of the second engagement portions are fixed to each other, so that the light source substrate is positioned and fixed in a state of being interposed between the lens holder and the heat sink.

Abstract: A picture generation apparatus includes: a light source substrate on which a light source is mounted; an optical member through which light emitted from the light source is transmitted; a display device configured to form, by the light transmitted through the optical member, light for generating a predetermined picture; a heat sink configured to dissipate heat generated from the light source substrate; and a lens holder configured to hold the optical member. The lens holder includes first engagement portions, and the heat sink includes second engagement portions. Each of the first engagement portions and a respective one of the second engagement portions are fixed to each other, so that the light source substrate is positioned and fixed in a state of being interposed between the lens holder and the heat sink.

Abstract: A lubricating agent including an ionic liquid formed from a Bronsted acid (HX) and a Bronsted base (B), wherein the Bronsted base has a linear hydrocarbon group having 10 or more carbon atoms and the difference between the pKa value of the Bronsted acid in water and the pKa value of the Bronsted base in water is 12 or more.

Abstract: A production method for a cathode material of a lithium sulfur battery includes, in sequence: a step of preparing a first dispersed solution in which a carbon particle is dispersed in a lithium sulfate solution; a step of adding a solvent in the first dispersed solution, the solvent being a solvent in which lithium sulfate is insoluble; a step of separating a precursor particle from the first dispersed solution in which the solvent is added; and a step of changing the precursor particle into a cathode active material particle by heating the precursor particle under an inert atmosphere.

Abstract: A carbon material according to an embodiment contains: 2% by mass or more and 15% by mass or less of nitrogen and 0.3% by mass or more and 2.5% by mass or less of sulfur, and 40% by mass or more of the nitrogen is a graphitic nitrogen.

Abstract: A lubricant including: an ionic liquid, which includes a conjugate acid (B+) and a conjugate base (X?), and is protic, wherein the ionic liquid is represented by the following general formula (1), and wherein the conjugate base is a conjugate base of sulfonic acid, a conjugate base of sulfonimide, or a conjugate base of trisulfonylmethide: where R1 and R2 each represent a hydrogen atom or R1 and R2 form a benzene ring together with carbon atoms to which R1 and R2 are bonded, R3 represents a to straight-chain hydrocarbon group having 10 or more carbon atoms, and R4 represents a hydrogen atom or a hydrocarbon group in the general formula (1).

Abstract: A lubricating agent including an ionic liquid formed from a Bronsted acid (HX) and a Bronsted base (B), wherein the Bronsted base has a linear hydrocarbon group having 10 or more carbon atoms and the difference between the pKa value of the Bronsted acid in water and the pKa value of the Bronsted base in water is 12 or more.

Abstract: A lubricating agent including an ionic liquid formed from a Bronsted acid (HX) and a Bronsted base (B), wherein the Bronsted base has a linear hydrocarbon group having 10 or more carbon atoms and the difference between the pKa value of the Bronsted acid in water and the pKa value of the Bronsted base in water is 12 or more.

Abstract: A lubricant including an ionic liquid, which includes a conjugate acid (B+) and a conjugate base (X?), and is protic, wherein the conjugate acid includes a straight-chain hydrocarbon group having 10 or more carbon atoms, and wherein the conjugate base is represented by the following general formula (1): where n is an integer of from 0 to 6 in the general formula (1).

Abstract: A lubricant including an ionic liquid, which includes a conjugate acid (B+) and a conjugate base (X?), and is protic, wherein the ionic liquid is represented by the following general formula (1): where R1 and R2 each represent a hydrogen atom or R1 and R2 form a benzene ring together with carbon atoms to which R1 and R2 are bonded, and R3 represents a straight-chain hydrocarbon group having 10 or more carbon atoms in the general formula (1).

Abstract: An alkali metal-sulfur-based secondary battery, in which coulombic efficiency is improved by suppressing a side reaction during charge, and a reduction in discharge capacity by repetition of charge and discharge is suppressed and which has a long battery life and an improved input/output density, includes a positive electrode or a negative electrode containing a sulfur-based electrode active material; an electrolyte solution containing an ether compound such as THF and glyme and a solvent such as a fluorine-based solvent, wherein at least a part of the ether compound and the alkali metal salt forms a complex; and a counter electrode.

Abstract: A lubricating agent including an ionic liquid formed from a Bronsted acid (HX) and a Bronsted base (B), wherein the Bronsted base has a linear hydrocarbon group having 10 or more carbon atoms and the difference between the pKa value of the Bronsted acid in water and the pKa value of the Bronsted base in water is 12 or more.

Abstract: An alkali metal-sulfur-based secondary battery, in which coulombic efficiency is improved by suppressing a side reaction during charge, and a reduction in discharge capacity by repetition of charge and discharge is suppressed and which has a long battery life and an improved input/output density, includes a positive electrode or a negative electrode containing a sulfur-based electrode active material; an electrolyte solution containing an ether compound such as THF and glyme and a solvent such as a fluorine-based solvent, wherein at least a part of the ether compound and the alkali metal salt forms a complex; and a counter electrode.

Abstract: An electrochemical cell includes an electrolyte membrane containing an ionic conductor. The ionic conductor includes: (a) a cation expressed by one of Formulae (1) and (2): R1R2R3HX+??(1) where, in Formula (1), X indicates any one of N and P, and R1, R2 and R3 each indicate any one of alkyl groups C1 to C18 except a structure in which R1=R2=R3, R1R2HS+??(2) where, in Formula (2), R1 and R2 each indicate any one of alkyl groups C1 to C18 except a structure in which R1=R2; and (b) an anion expressed by Formula (3): R4YOm(OH)n?1O???(3) where, in Formula (3), Y indicates any one of S, C, N and P, R4 indicates any one of an alkyl group and a fluoroalkyl group, and m and n each indicate any one of 1 and 2.

Abstract: A polymer electrolyte which comprises an ionic liquid (A) and a block copolymer (B) as essential ingredients, which block copolymer (B) comprises one or more of polymer block(s) (P) being compatible with (A) and one or more of polymer block(s) (Q) being incompatible with (A). (A) and (P) mutually dissolve each other to form one phase (X), and (Q) forms a phase (Y) being incompatible with phase (X), and phase (X) and phase (Y) are mutually micro phase separated. The polymer electrolyte of the present invention shows practical ion conductivity, is excellent in retention of ionic liquid, and moreover, is also excellent in heat resistance and mechanical strength.

Abstract: An electrochemical cell includes an electrolyte membrane containing an ionic conductor. The ionic conductor includes: (a) a cation expressed by one of Formulae (1) and (2): R1R2R3HX+??(1) where, in Formula (1), X indicates any one of N and P, and R1, R2 and R3 each indicate any one of alkyl groups C1 to C18 except a structure in which R1?R2?R3, R1R2HS+??(2) where, in Formula (2), R1 and R2 each indicate any one of alkyl groups C1 to C18 except a structure in which R1?R2; and (b) an anion expressed by Formula (3): R4YOm(OH)n?1O???(3) where, in Formula (3), Y indicates any one of S, C, N and P, R4 indicates any one of an alkyl group and a fluoroalkyl group, and m and n each indicate any one of 1 and 2.

Abstract: An electrolyte composition is in solid form, and includes a polymer compound containing a cation structure selected from a group consisting of ammonium, phosphonium and sulfonium structures in either the principal chain or a side chain of the polymer, and a halide ion and/or a polyhalide as a counter anion.

Abstract: A polymer electrolyte which comprises an ionic liquid (A) and a block copolymer (B) as essential ingredients, which block copolymer (B) comprises one or more of polymer block(s) (P) being compatible with (A) and one or more of polymer block(s) (Q) being incompatible with (A). (A) and (P) mutually dissolve each other to form one phase (X), and (Q) forms a phase (Y) being incompatible with phase (X), and phase (X) and phase (Y) are mutually micro phase separated. The polymer electrolyte of the present invention shows practical ion conductivity, is excellent in retention of ionic liquid, and moreover, is also excellent in heat resistance and mechanical strength.

Abstract: To improve the reliability to an environmental temperature change of an optical pickup, an optical pickup 7 has a semiconductor laser 711 for generating a laser beam. An objective lens drive leads the laser beam to a predetermined position of a disk. The semiconductor laser and objective lens drive are mounted on a pickup hosing 70. The objective lens drive has a movable portion 74 and the movable portion has an objective lens 716 for condensing the laser beam on the recording face of the disk. A fixed portion 72 holds the movable portion through a support member. The fixed portion has a magnetic yoke 75. An extended portion formed by extending a part of the yoke to the fixed portion side and the upside 72b of a cutout formed at the intermediate portion of the fixed portion in the tracking direction are adhered and fixed.

Abstract: In order to improve reliability of an optical disk drive apparatus at low cost, a flexible substrate for making connection between an optical pick-up device incorporated in the optical disk drive apparatus and a drive side is divided into a first flexible substrate fixed to the optical pick-up body (for example, upper surface), and a second flexible substrate connected to the first flexible substrate and extending to the drive, wiring conductors formed on a connection end portion of the first flexible substrate and wiring conductors formed on a connection end portion of the second flexible substrate are superposed at a region adjacent an end of the case of the optical pick-up device body, and connected to each other by joining material, and a connection section between the wiring conductors is held down by a cover for protecting the optical pick-up device body.