Sharp Kabushiki Kaisha Corporation

Toyoka Aimoto

Hirotaka Mizuhata

Masato Asanuma

Tomo Kitagawa

Masatoshi Kaneshige

Masaki Kaga

Akihito Yoshida

Tomohiro Maeda

Nobuhiro Maezawa

Yasunobu Ohkawa

Toshimasa Hamada

Yoshiki Ichikawa

Shunsuke Sata

Keiji Kato

Shinobu Takenaka

Takashi Miyaji

Yoshikazu Nishikawa

Akio Shiomi

Kazuhiro Satou

Provided is a metal-air cell whose electrolytic solution is kept from leaking from an outer pouch housing an electrode. Hence, the metal-air cell excels in reliability and safety. The metal-air cell includes a negative electrode and a positive electrode each including a lead. The lead includes a sealing member provided to an outer face of the lead. The outer pouch includes a fusing portion in which the sealing member and the lead are held and fused together. The fusing portion seals the outer pouch. The sealing member includes an adhesive layer covering the lead inside the outer pouch.

Metal-air cell

A metal-air battery module includes a unit assembly having a plurality of battery units coupled using first couplers. Each battery unit has a metal-air battery cell held by a sheet. In the unit assembly, two of the metal-air battery cells adjacent to each other are arranged in such a manner that a negative-electrode terminal and an air-electrode terminal face each other, and the facing terminals are connected together to form a pair of connected terminals. In the pair of connected terminals, the negative-electrode terminal and the air-electrode terminal are connected through welding or other methods.

Metal air battery module

In a battery casing a metal negative electrode that contains metal serving as a negative electrode active material and an air electrode are arranged so as to face each other in a state where at least a part of the metal negative electrode and the air electrode is immersed in an electrolytic solution inside a casing. The metal negative electrode is housed in a negative electrode housing in the casing. A separator separating the metal negative electrode and the air electrode is arranged at a side surface of the negative electrode housing. An opening through which inside of the negative electrode housing and outside of the negative electrode housing communicate with each other is provided on an upper surface of the negative electrode housing.

Battery casing, metal-air battery, and method for producing metal-air battery

A battery case containing an electrode group including an air electrode and a separator includes main walls on which the air electrode is opposingly disposed and a surrounding portion that is disposed at marginal portions of the main walls and that surrounds a side edge portion of the opposingly disposed air electrode. The surrounding portion is covered by an edge portion of the separator disposed opposing the air electrode.

Battery case and metal-air battery having same

An image forming apparatus of the present invention includes: a developing section which includes a developer bearing member which bears toner to be supplied to an image bearing member on which an electrostatic latent image is formed; and a developer regulating section which regulates a layer thickness of the toner borne by the developer bearing member, the developer regulating section being electrically connected to the charger case, the developer regulating section being at least partially electroconductive.

Electrophotographic image forming apparatus with electroconductive developer regulating section

A transfer device and an image forming apparatus capable of forming an image of smooth image quality with little uneven density, are provided. An alternating voltage is applied so that a first period in which a first peak-to-peak voltage Vpp() is applied and a second period in which a second peak-to-peak voltage Vpp(), lower than the first peak-to-peak voltage, is applied are alternately repeated. In the alternating voltage to be applied, a transfer side potential to shift a toner from an intermediate transfer belt to recording paper sheet and an opposite transfer side potential to shift the toner from the recording paper sheet to the intermediate transfer belt are applied so as to alternate with each other. When fdenotes a frequency of the first period and fdenotes a frequency of the second period, ffis satisfied.

Transfer device and image forming apparatus

A developing unit is configured to develop an electrostatic latent image born on an image bearing member with a developer that has been charged by mixing and agitating toner and magnetic carrier. The developing unit comprises a developing hopper; a developer bearing member; and at least a pair of agitating and conveying members rotationally driven in the developing hopper. The agitating and conveying members are arranged substantially parallel to the developer bearing member and each rotational shaft of the agitating and conveying members is embedded with a magnetic source element whose magnetic poles are laid out so as to produce a magnetic field radially oriented in a particular fixed direction with respect to the agitating and conveying member.

Developing unit and image forming apparatus with magnet bearing members

The development device of this invention includes a developer bearing member, a magnet, and a developer regulation member. The magnet is fixedly disposed within the interior of the developer bearing member. The developer regulation member includes at least a magnetic member. And the thickness of this magnetic member along the rotational direction of the developer bearing member is between 0.2 mm and 0.4 mm inclusive. Moreover, if the distance over the developer bearing member, from the position thereupon which the center of the magnetic member along the rotational direction opposes, to the position thereupon at which the magnetism of that magnetic pole which is disposed closest to that position is a maximum, is termed L (mm), and the diameter of the developer bearing member is termed D (mm), then the magnetic member is disposed within the range in which the relationship 0&#x2266;L/D&#x2266;0.044 holds.

Development device and image forming apparatus

A developing device includes a developing tank having a developing region tank and an agitating region tank, a partition wall member, a first agitating and conveying member, a second agitating and conveying member, a first intermediate wall member, a second intermediate wall member and a sensor, and an opening portion is formed. In the developing device, a third agitating and conveying member extending in a longitudinal direction of the agitating region tank is provided between the second agitating and conveying member and the second intermediate wall member in a transverse direction of the agitating region tank.

Developing device

A developing device is provided having a simple configuration by which a desired amount of developer can be delivered to an image bearing member, and there is provided an image forming apparatus having the developing device. A developing device includes a developing roller by which two-component developer is borne and delivered to a photoreceptor drum, a layer thickness-regulating member for regulating a layer thickness of the developer, and a magnetism-generating member for generating magnetism, and a control unit for controlling an amount of displacement of the magnetism-generating member. The control unitcontrols an amount of displacement of the magnetism-generating member relative to the development sleeve.

Developing device and image forming apparatus

In a developing device including a developer tank having a developing area tank and an agitating tank, a first agitating member, a second agitating member, a toner hopper, and a toner storing container, a toner replenishing port is formed in an agitating tank, and two flows of the developer are produced by a rotation of the first agitating member provided with a first agitating blade and a second agitating blade, from both ends of a longitudinal direction of the developer tank to a vicinity of the toner replenishing port. These two flows collides with each other in a vicinity of the toner replenishing port to produce a pulsation flow of the developer from the toner replenishing port into the toner storing container through the toner hopper.

Developing device with pulsation developer flow and image forming apparatus

Toner cartridge

A developing unit comprises a magnet roller, a stirring roller, a carrying screw, a toner density sensor, and a sensor level adjusting device. When feeding or exhausting the developing powder, the rollers and screw are driven at a slower or faster rotary speed than the speed given when developing an image. After the supply of the developing powder is terminated, the rotary speed of the rollers and the screw is changed to the speed given for developing an image. After a certain time is elapsed, the adjusting device serves to start the level adjustment when the sensor produces a stable output.

Developing unit having capability of efficiently exchanging developing

A developing unit includes a developing bath, rollers used for developing an image, and a rotary body for exhausting developing powder out of the developing bath through an exhaust outlet. The rollers and the rotary body are rotatably fitted to the developing bath. When developing an image, the rotary body is rotated in an opposite direction to the rotating direction when exhausting the developing powder.

Developing unit having capability of preventing developing powder from

A developing unit is intended to have a capability of efficiently exhausting developing powder. The developing unit is constructed to have a developing bath, one or more rollers for development, an exhausting mechanism for exhausting the developing powder out of the developing bath, a shielding member for shielding the exhausting mechanism from the developing bath or exposing it to the developing bath, and a control unit for controlling the rollers, the exhausting mechanism and the shielding member. When exhausting the developing powder, the control unit operates to drive the rollers and then activate the shielding member for exposing the exhausting mechanism to the inside of the developing bath after a certain time is elapsed since the rollers are driven. Further, a pair of rotary bodies may be provided in parallel for opening or closing the exhaust outlet of the developing bath selectively at a proper time.

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Nara, Japan

Toyoka Aimoto