Oki Data Corporation

Fdk Corporation

Fdk Twicell Co., Ltd.

Sanyo Electric Co., Ltd.

Toshiki Sato

Akira Saguchi

Masaru Kihara

Akira Nagumo

Jun Ishida

Shota Ohata

Isao Mugima

Tomomi Nakamura

Satoshi Wada

Shigekazu Yasuoka

Yoshifumi Magari

Tadayoshi Tanaka

Takahiro Endo

Hideyuki Asanuma

Masanori Tamura

A battery comprises an electrode group including a separator, a positive electrode and a negative electrode. The negative electrode comprises a negative electrode core, negative electrode mixture layers retained to the negative electrode core, and a fluorine resin layer disposed on the surface of the negative electrode mixture layers. The negative electrode mixture layers include a first outermost peripheral region located at the outermost periphery of the electrode group and a second outermost peripheral region located opposite to the first outermost peripheral region. When the amount of the fluorine resin constituting a first fluorine resin layer in a portion of the first outermost peripheral region is represented by A, and the amount of the fluorine resin constituting a second fluorine resin layer in a portion of the second outermost peripheral region is represented by B, a relation A&#x3e;B is satisfied.

Negative electrode for alkaline secondary battery, and alkaline secondary battery

A nickel-hydrogen secondary battery includes an electrode group which contains a positive electrode, a negative electrode, and a separator, wherein the negative electrode includes a negative electrode core, and a negative electrode mixture layer held by the negative electrode core, wherein the negative electrode mixture layer contains a fluororesin; a quantity of the fluororesin, expressed by a mass applied per unit area of the negative electrode, is within a range of 0.2 mg/cmor more and 2.0 mg/cmor less; and a fluororesin content which is a ratio of the fluororesin contained in a unit volume of the negative electrode mixture layer is higher in an inner layer portion than in an outer layer portion in the negative electrode mixture layer.

Negative electrode for nickel-hydrogen secondary battery, and nickel-hydrogen secondary battery

An image formation apparatus includes a fixation unit supported by a support member and configured to be heated by a heater and thereby fix an image attached on a print medium onto the print medium; a first temperature detector attached to the support member to detect a temperature of a vicinity of the fixation unit and output a first detection temperature; a second temperature detector attached to the support member to detect a temperature of the support member and output a second detection temperature; a medium width detector provided to detect a width of the print medium and output a detected width; and a heat controller configured to change a control condition in accordance with the second detection temperature, a calorific value of the heater and the detected width, and to thereby control a temperature of the fixation unit.

Image formation apparatus

An image forming apparatus includes a fuser unit that heats a medium and fuses a developer on the medium, a plurality of heating units that heat the fuser unit, a temperature detection unit that detects a temperature of the fuser unit, a heating control unit that controls a heating amount of the heating units based on the temperature detected by the temperature detection unit, and a selection unit that selects heating units to start heating from the plurality of heating units. The heating control unit sets such that, among the heating units selected by the selection unit, a heating amount of one of the heating units becomes larger than a heating amount of the others of the heating units.

Image forming apparatus with heating control unit

A fuser control device includes a heat application part for heat supply, a fuser part that has a passage region where a print medium passes through and a not-passage region that is located at both sides of the passage region where the print medium does not pass through, and a first temperature detection part that detects a first temperature of the passage region, a second temperature detection part that detects a second temperature of the not-passage region, and a heat application controller that changes a target temperature according to the first detection temperature and the second detection temperature, and performs the heat generation such that a temperature of the fuser part approaches the target temperature.

Fuser control device and image forming apparatus

A fuser control device that controls a fuser that heats and fuses developer on a medium for an image formation on the medium includes the fuser including a heating member that rotates while contacting and heating the medium, and a rotation member that rotates and sandwiches the medium with the heating member; a heat supply part that supplies heat to the heating member; a temperature detection part that detects a temperature of the heating member; a heating controller that controls the heat supply part based on a detection result by the temperature detection part; and a rotation controller that controls a rotational speed of the heating member.

Fuser control device, fuser control method and image forming apparatus

A fuser control device includes a fuser device that a holding member holds configured to fuse a developing image to a priming medium, a fuser heater that is installed at the holding member configured to generate heat for at least a central part and side parts of a heat application roller, a first temperature detection part configured to detect a temperature of the fuser device and configured to transmit the temperature of the fuser device as a first detecting temperature, a second temperature detection part configured to detect a temperature of the holding member and configured to transmit the temperature of the holding member as a second detecting temperature, and a heat application control unit configured to control the temperature of the fuser device with changing a targeting temperature for the fuser device based on a controlling condition.

An image forming apparatus includes a fixing member; a pressing member; a first temperature detection unit for detecting a temperature of the fixing member; a second temperature detection unit for detecting a temperature of the pressing member; and a rotational speed control unit for controlling a rotational speed of the fixing member according to the temperature detected with the first temperature detection unit and the temperature detected with the second temperature detection unit.

Image forming apparatus with rotational speed control unit for fixing member

An image forming apparatus includes a fixing member configured to fix an image to a medium by heating the medium, a heating member configured to heat the fixing member, a pressure member pressed against the fixing member so as to presses the medium against the fixing member, a first temperature detection unit for detecting a temperature of the fixing member, a second temperature detection unit for detecting a temperature of the pressure member, and a control unit that controls a rotation speed of the fixing member. The control unit controls the rotation speed of the fixing member based on a temperature difference between the temperature detected by the first temperature detection unit and the temperature detected by the second temperature detection unit.

Image forming apparatus capable of changing rotation speed of fixing member

A negative-electrode platefor use in a cylindrical cell, intended to be laid over a positive-electrode platewith a separatorinterposed between and rolled to form a cylindrical electrode body, with the positive-electrode plateinside, the electrode body being arranged in a bottomed cylindrical outer canto form the cylindrical cell, comprises a first negative-electrode partwhich is to face the positive-electrode plateon either side, with the separatorbetween, when formed into the electrode body, and a second negative-electrode partwhich is to form the innermost circumference of the electrode bodyand face the positive-electrode plateonly on one side, with the separatorbetween, when formed into the electrode body, the second negative-electrode partbeing lower in negative-electrode active material density than the first negative-electrode part

Negative-electrode plate and cylindrical cell including same

A negative electrode for a nickel-hydrogen rechargeable battery is a strip-shaped negative electrode, the negative electrode being formed of a core body and a negative mixture layer covering the core body and containing hydrogen-storage alloy particles, including a main section, both sides of which face the positive electrode with the separator intervening therebetween as viewed in a rolled state where the negative electrode forms the electrode group with the positive electrode and the separator, and an outermost circumferential portion and an innermost circumferential portion that are protruding from ends of the main section in a rolling direction and facing the positive electrode with the separator intervening therebetween only with one side, wherein the hydrogen-storage alloy particles contained in the outermost circumferential portion and the innermost circumferential portion have an average diameter larger than an average diameter of the hydrogen-storage alloy particles contained in the main section.

Negative electrode for a nickel-hydrogen rechargeable battery and a nickel-hydrogen rechargeable battery using the same

When the temperature of a fixing section has not reached a fixable temperature and the condition of an image forming apparatus is an abnormal temperature rising condition, a print controller causes a toner image conveying section to move a toner image on an intermediate transfer member to a predetermined toner image standby position upstream of a secondary transfer section and to put the toner image on standby at the toner image standby position, and causes a recording medium conveying section to put a recording medium on standby at a predetermined sheet standby position upstream of the secondary transfer section. Thereafter, when the temperature of the fixing section reaches the fixable temperature, the print controller causes the secondary transfer section to transfer the toner image on the intermediate transfer member onto the recording medium.

Image forming apparatus

A negative electrode for alkaline storage battery using a hydrogen-absorbing alloy includes fluorinated oil and a surface active agent.

Negative electrode for alkaline storage battery, fabrication method thereof, and alkaline storage battery

An image forming apparatus includes a fixing member; a pressing member abutting against the fixing member; a first temperature detection unit for detecting a temperature of the fixing member; a heating member for heating the fixing member; a power control unit for controlling power supplied to the heating member; a drive unit for rotating the fixing member; and a control unit for controlling the power control unit and the drive unit according to the temperature of the fixing member and a temperature of the pressing member before the fixing member rotates.

Image forming apparatus with control unit

An invented fixing device having a fixing roller for fixing developer to a recording medium and plural fixing heaters for heating the fixing roller includes a temperature detection unit as well as a thermistor for detecting the temperature of the fixing roller, a RAM storing the switching temperature for switching drive of the fixing heaters, a heater selection unit for selecting some of the fixing heaters to be driven based on the switching temperature and the detected temperature of the fixing member detected through the temperature detection unit, and a heat control unit for selectively driving the fixing heater selected by the heater selection unit.

Growing community of inventors

Tokyo, Japan

Toshiki Sato