Abstract: The present invention provides a lithium secondary battery having a positive electrode, a negative electrode, and a solid electrolyte and characterized in that the positive electrode contains positive electrode active material particles made of particles of a material capable of doping/dedoping lithium ion and an element M-containing compound (herein, the element M-containing compound is a compound containing one or more elements selected from B, Al, Mg, Co, Cr, Mn, and Fe as the element M) disposed on the surfaces of the particles as particles or in a layered state.

Abstract: A cleaning device includes a casing including an opening facing the rotary member, a cleaning member disposed at the opening to contact the rotary member to remove a substance adhering thereto, an entrance seal disposed at the opening to prevent leakage of the removed substance through a gap between the opening and the rotary member, a pair of lateral end seals respectively disposed both end portions of the cleaning member as well as the entrance seal in an axial direction of the rotary member, and a compressing member. A first face of each lateral end seal is attached to the casing. The compressing member compresses each lateral end seal by pressing a second face thereof opposite the first face-and presses a third face of the lateral end seal against the casing in a direction in which the lateral end seal is expanded by the compression.

Abstract: Provided is a lithium composite metal oxide containing Li, Ni and M (wherein, M is Mn and/or Co), characterized by exhibiting Signal B below in a spectrum at a rotational speed of 10 kHz among the solid-state nuclear magnetic resonance spectra of 7Li of a lithium composite metal oxide obtained by the nuclear magnetic resonance measuring method 1, <Nuclear Magnetic Resonance Measuring Method 1> A lithium composite metal oxide is rotated at each of rotational speeds of 10 kHz and 11 kHz by the magic angle-spinning method using a nuclear magnetic resonance apparatus with a magnetic field strength of 7.

Abstract: A conveyor device includes a conveyor belt and a driving unit that applies a driving force to the conveyor belt at different portions in a width direction of the conveyor belt to drive the conveyor belt. The driving unit includes a driving shaft having a projection corresponding to each of the portions. The belt includes a recess corresponding to the projection arranged on each side of the conveyor belt in the width direction.

Abstract: The present invention provides a lithium composite metal oxide containing Li and at least one transition metal element, wherein at least one lithium composite metal oxide particle constituting the lithium composite metal oxide has both hexagonal and monoclinic crystal structures. Further, the present invention also provides a lithium composite metal oxide containing Li, Ni and M (where, M represents one or more kinds of transition metal elements selected from the group consisting of Mn, Co and Fe), having a diffraction peak (diffraction peak A) at an angle 2? in a range from 20° to 23° in a powder X-ray diffraction pattern of a lithium composite metal oxide which is obtained by powder X-ray diffraction measurement made in the condition that CuK? is used as a radiation source and the measurement range of diffraction angle 2? is in a range from 10° to 90°.

Abstract: A developing device includes a main body that is arranged between a pair of supporting members and includes a developing roller. Both end portions of the developing roller are supported by the supporting members in a first direction in which the developing roller is movable toward and away from an image carrier. A groove is formed on each of the supporting members. Either one of an end portion of the developing roller and a bearing that supports the end portion is inserted into the groove. Either one of at least one of the end portions of the developing roller and at least one of the bearings is movable in the groove in a second direction that intersects the first direction.

Abstract: A toner transport screw that is capable of maintaining a smooth and stable transport function. The toner transport screw, in which a helical blade is disposed on the circumference of a rotating shaft, has at least one spiral direction reversal part formed by connecting the respective ends of a first blade part and a second blade part, the directions of spiral of the first blade part and the second blade part being in opposite directions. A passage, which allows the toner to pass through the blades in the circumferential direction of the rotating shaft, is formed in the spiral direction reversal part.

Abstract: A toner agitating unit is located in a toner hopper that houses toner used for developing a latent image. The toner agitating unit includes a rotary shaft and an agitating member. The agitating member is a flat plate made of resin. The agitating member has a plurality of slits extending from an outer edge of the agitating member toward the rotary shaft.

Abstract: A waste-toner collecting device includes a cleaning unit that collects waste toner remaining on an image carrier; a conveying belt that conveys the waste toner collected by the cleaning unit in a first direction; and a conveying screw that conveys the waste toner conveyed by the conveying belt in a second direction. An end of the conveying screw on a side of the conveying belt is rotatably supported by an inner wall of a body of the waste-toner collecting device in a state where the end of the conveying screw is in contact with the inner wall.

Abstract: A seal member covers a space between a developing roller and a casing of a developing device. The seal member includes a flexible sheet and a reinforcing member fixed to the sheet. The reinforcing member is fixed to the casing. Notches are provided in the reinforcing member in a direction perpendicular to the length of the reinforcing member.

Abstract: The positive electrode active material powder of the present invention is a positive electrode active material powder, including primary particles and aggregated particles of primary particles, wherein an average particle diameter of primary particles and aggregated particles of primary particles in the powder is 0.1 ?m or more and 3 ?m or less on a volume basis, the percentage of [volumetric sum of particles having a particle diameter of 5 ?m or more]/[volumetric sum of entire particles] is 10% or less, and a BET specific surface area of the powder is more than 2 m2/g and 7 m2/g or less. When this positive electrode active material powder is used for a nonaqueous electrolyte secondary battery, it becomes possible to exhibit a high discharge capacity and also exhibit a high output at a high current rate.

Abstract: The powder for a positive electrode of the present invention comprises a positive electrode active material powder comprising primary particles and aggregated particles of primary particles, 90% or more of particles out of primary particles and aggregated particles of primary particles in the powder having a particle diameter of 0.01 ?m or more and 5 ?m or less, and comprises a graphite powder comprising graphite particles, 90% or more of particles out of graphite particles in the powder having a particle diameter of 0.1 ?m or more and 10 ?m or less as a maximum particle diameter. When the powder for a positive electrode is used for a nonaqueous electrolyte secondary battery, it becomes possible to exhibit a high discharge capacity and also exhibit a high output at a high current rate.

Abstract: A toner cartridge is configured by integrally arranging a fresh toner storing chamber and a residual toner collection chamber. Fresh toner is filled in the fresh toner storing chamber through a fresh toner filling opening. Residual toner is conveyed in the residual toner collection chamber through a residual toner conveying opening. Two residual toner discharging openings are created in the residual toner collection chamber through which the residual toner is discharged.

Abstract: A developing device that supplies developer to an image carrier. In a developing device having a developer carrier that is driven in rotation by drive force applied to a gear provided on the shaft section thereof, the developer carrier being pressed in the direction of the image carrier, the effect of the gear drive force on the pressing force of the developer carrier onto the image carrier can be eliminated. The bearing that supports the shaft section is made slidable and the sliding direction of the bearing with respect to the direction of the drive force is set at about 90°.

Abstract: A toner-collecting device includes a toner-collecting unit, a shaft member, and a guide member. The toner-collecting unit is configured to be detachably attachable. The shaft member is rotatably arranged in the toner-collecting unit. The guide member includes a sliding portion that allows the shaft member to slide while the shaft member is being inserted from one end to an opposite end of the toner-collecting unit.