Abstract: A semiconductor memory device includes a stacked body in which a first insulating layer and a first conductive layer are alternately stacked in a first direction. A columnar body includes a first insulating portion extending in the first direction in the stacked body, a first semiconductor portion provided between the first insulating portion and the stacked body, and a third insulating portion provided between a second insulating portion provided between the first semiconductor portion and the stacked body, and the second insulating portion and the stacked body, and has a first end and a second end opposite to the first end. A second conductive layer is provided on the stacked body and is electrically connected to the first semiconductor portion at the first end of the columnar body.

Abstract: A vehicle front structure is provided for preventing a vortex from being generated between high-speed air separated from an outer edge of a deflector and low-speed air in a front wheel house due to a wind speed difference. Embodiments include a deflector disposed in front of a front wheel house projected downward from a lower surface of a bumper face. The deflector includes an air introducing section to introduce air into a space inside the deflector in a front portion of the deflector; and an intermediate-speed wind generating hole section that communicates with the air introducing section and generates an airflow at an intermediate wind speed, lower than a wind speed of air separated from deflector outer edges and higher than a wind speed of air in the front wheel house, in an area not opposing a tire in a vehicle front view of a portion immediately behind the deflector.

Abstract: A vehicle front structure is provided for preventing a vortex from being generated between high-speed air separated from an outer edge of a deflector and low-speed air in a front wheel house due to a wind speed difference. Embodiments include a deflector disposed in front of a front wheel house projected downward from a lower surface of a bumper face. The deflector includes an air introducing section to introduce air into a space inside the deflector in a front portion of the deflector; and an intermediate-speed wind generating hole section that communicates with the air introducing section and generates an airflow at an intermediate wind speed, lower than a wind speed of air separated from deflector outer edges and higher than a wind speed of air in the front wheel house, in an area not opposing a tire in a vehicle front view of a portion immediately behind the deflector.

Abstract: An airflow deflector for a vehicle includes: an exterior surface and at least one airflow deflector area in a portion on a vehicle rear side of the exterior surface. The airflow deflector area includes a slanted side that is slanted in a manner to extend to a vehicle lower side as extending to the vehicle rear side and an airflow deflector surface that extends in a vehicle vertical direction from the slanted section toward the exterior surface. An extending direction of a side of the airflow deflector surface, which serves as a boundary between the airflow deflector surface and a surface of the cover, is oriented inward or outward in a vehicle width direction with respect to a vehicle longitudinal direction. The airflow deflector surface is tilted inward or outward in the vehicle width direction with respect to the surface of the cover.

Abstract: A lower vehicle-body structure allows miniaturization of an undercover and prevents an increase in minimum ground clearance. In the lower vehicle-body structure, a vehicle body floor includes step-up portions connected to a floor tunnel on opposite sides of the floor tunnel in a vehicle width direction at least in regions where first and second cross members are disposed on the vehicle body floor. The lower vehicle-body structure includes a mount member that faces the floor tunnel and connects the step-up portions on the opposite sides of the floor tunnel, and includes first and second undercovers that cover a lower side of the mount member so as to be continuous with a bottom surface of the vehicle body floor on outer sides of the step-up portions in the vehicle width direction.

Abstract: A lower vehicle-body structure allows miniaturization of an undercover and prevents an increase in minimum ground clearance. In the lower vehicle-body structure, a vehicle body floor includes step-up portions connected to a floor tunnel on opposite sides of the floor tunnel in a vehicle width direction at least in regions where first and second cross members are disposed on the vehicle body floor. The lower vehicle-body structure includes a mount member that faces the floor tunnel and connects the step-up portions on the opposite sides of the floor tunnel, and includes first and second undercovers that cover a lower side of the mount member so as to be continuous with a bottom surface of the vehicle body floor on outer sides of the step-up portions in the vehicle width direction.

Abstract: An electrophotographic photosensitive member has a support, a charge generation layer containing a charge-generating material and a binder resin, provided on the support, and a hole transport layer containing a hole-transporting material, provided on the charge generation layer. The charge generation layer contains a phenanthrene compound having a structure represented by the following formula (2): wherein Z201 and Z202 each independently represent an oxygen atom, a ?C(CN)2 group or a ?N-Ph group; R201 represents a hydrogen atom, a halogen atom, a nitro group, a substituted or unsubstituted alkyl group or a substituted or unsubstituted alkoxy group; and R202 represents a halogen-atom-substituted alkyl group.

Abstract: An electrophotographic photosensitive member includes a conductive layer, an intermediate layer and a photosensitive layer in this order on a substrate, in which the conductive layer contains a binder resin and conductive particles. The conductive particles are TiO2 particles coated with oxygen-deficient SnO2, the conductive particles have an average particle size of 0.2 to 0.6 ?m and the conductive layer has a volume resistivity of 5×105 to 8×108 ?·cm. Also this invention provides a process cartridge and an electrophotographic apparatus equipped with such electrophotographic photosensitive member.

Abstract: An electrophotographic photosensitive member having a charge generation layer containing a phenanthrene compound, a phenanthroline compound or an acenaphthene compound. Also disclosed are a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member.

Abstract: An electrophotographic photosensitive member includes a support, a charge generation layer containing a charge generating material, and a binder resin, on the support, and a hole transport layer containing a hole transporting material, on the charge generation layer. The charge generation layer contains an acenaphthene compound represented by the following formula: Z401 and Z402 each independently represent an oxygen atom, a ?C(CN)2 group or a ?N Ph group; and R401 and R402 each independently represented a hydrogen atom, a halogen atom, a nitro group, a substituted or unsubstituted alkyl group or a substituted or unsubstituted alkoxy group. The acenaphthene compound has the structure represented by the above formula (4) is contained in the charge generation layer in an amount of from 51% by weight to 80% by weight based on the weight of the binder resin in the charge generation layer.

Abstract: An electrophotographic photosensitive member includes a conductive layer, an intermediate layer and a photosensitive layer in this order on a substrate, in which the conductive layer contains a binder resin and conductive particles. The conductive particles are TiO2 particles coated with oxygen-deficient SnO2, the conductive particles have an average particle size of 0.2 to 0.6 ?m and the conductive layer has a volume resistivity of 5×105 to 8×108 ?·cm. Also this invention provides a process cartridge and an electrophotographic apparatus equipped with such electrophotographic photosensitive member.

Abstract: An electrophotographic photosensitive member includes a conductive layer, an intermediate layer and a photosensitive layer in this order on a substrate, in which the conductive layer contains a binder resin and conductive particles. The conductive particles are TiO2 particles coated with oxygen-deficient SnO2, the conductive particles have an average particle size of 0.2 to 0.6 ?m and the conductive layer has a volume resistivity of 5×105 to 8×108 ?cm. Also this invention provides a process cartridge and an electrophotographic apparatus equipped with such electrophotographic photosensitive member.

Abstract: An electrophotographic photosensitive member having a charge generation layer containing a phenanthrene compound, a phenanthroline compound or an acenaphthene compound. Also disclosed are a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member.

Abstract: An electrophotographic photosensitive member having a support and a charge generation layer containing a charge-generating material and a binder resin, provided on the support, and a hole transport layer containing a hole-transporting material, provided on the charge generation layer. The charge generation lays contains a phenanthroline compound according to formula (3) discussed in the specification or an acenaphthene compound according to formula (4) discussed in the specification. Also disclosed are a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member.

Abstract: A toner exhibits excellent image characteristics, and also has an excellent charging property even if the toner is used in a cleaning-simultaneous-with-developing system having a direct injection charging mechanism. The toner includes toner particles and non-magnetic metallic-compound fine particles. The weight average particle diameter of the toner is 3.0 ?m to 12.0 ?m. The metallic-compound fine particles are conductive metallic-compound fine particles having a specific surface area (cm2/cm3) of 5×105 to 100×105; a medium diameter (D50) of 0.4 ?m to 4.0 ?m with respect to a volume-based particle diameter distribution, the medium diameter (D50) being smaller than the weight average particle diameter of the toner; and a 90% particle diameter D90 of 6.0 ?m or less with respect to a volume-based particle diameter.

Abstract: A toner exhibits excellent image characteristics, and also has an excellent charging property even if the toner is used in a cleaning-simultaneous-with-developing system having a direct injection charging mechanism. The toner includes toner particles and non-magnetic metallic-compound fine particles. The weight average particle diameter of the toner is 3.0 ?m to 12.0 ?m. The metallic-compound fine particles are conductive metallic-compound fine particles having a specific surface area (cm2/cm3) of 5×105 to 100×105; a medium diameter (D50) of 0.4 ?m to 4.0 ?m with respect to a volume-based particle diameter distribution, the medium diameter (D50) being smaller than the weight average particle diameter of the toner; and a 90% particle diameter D90 of 6.0 ?m or less with respect to a volume-based particle diameter.

Abstract: An electrophotographic photosensitive member having a charge generation layer containing a phenanthrene compound, a phenanthroline compound or an acenaphthene compound. Also disclosed are a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member.

Abstract: An electrophotographic photosensitive member superior in dot reproducibility and a process cartridge and an process cartridge having the electrophotographic photosensitive member are provided. Where in a light attenuation curve drawn in a way in which the surface of the electrophotographic photosensitive member is so charged that intensity of an electric field is 15 (V/?m) to establish the surface potential of the electrophotographic photosensitive member into a given value E(V) and then exposed to light under conditions that the electrophotographic photosensitive member has a surface potential of 0.

Abstract: A toner exhibits excellent image characteristics, and also has an excellent charging property even if the toner is used in a cleaning-simultaneous-with-developing system having a direct injection charging mechanism. The toner includes toner particles and non-magnetic metallic-compound fine particles. The weight average particle diameter of the toner is 3.0 ?m to 12.0 ?m. The metallic-compound fine particles are conductive metallic-compound fine particles having a specific surface area (cm2/cm3) of 5×105 to 100×105; a medium diameter (D50) of 0.4 ?m to 4.0 ?m with respect to a volume-based particle diameter distribution, the medium diameter (D50) being smaller than the weight average particle diameter of the toner; and a 90% particle diameter D90 of 6.0 ?m or less with respect to a volume-based particle diameter.

Abstract: A toner exhibits excellent image characteristics, and also has an excellent charging property even if the toner is used in a cleaning-simultaneous-with-developing system having a direct injection charging mechanism. The toner includes toner particles and non-magnetic metallic-compound fine particles. The weight average particle diameter of the toner is 3.0 ?m to 12.0 ?m. The metallic-compound fine particles are conductive metallic-compound fine particles having a specific surface area (cm2/cm3) of 5×105 to 100×105; a medium diameter (D50) of 0.4 ?m to 4.0 ?m with respect to a volume-based particle diameter distribution, the medium diameter (D50) being smaller than the weight average particle diameter of the toner; and a 90% particle diameter D90 of 6.0 ?m or less with respect to a volume-based particle diameter.