Patent application number | Description | Published |
20090136273 | Fixing device and image forming apparatus - A fixing device and an image forming apparatus including the fixing device are supplied capable of preventing life of roller from shortening due to big shearing warp. | 05-28-2009 |
20090136274 | Fixing device and image forming apparatus - A fixing device fixes a recording medium with a toner image transferred thereon. The fixing device includes an endless belt heated with a heating member; a first pressing member contacting with the endless belt and extending the endless belt together with the heating member; a second pressing member for pressing the endless belt and sandwiching the endless belt together with the first pressing member; and a high thermal conductive member contacting with an inner surface of the endless belt and disposed along a direction crossing a direction that the endless belt moves. | 05-28-2009 |
20090162115 | FIXING DEVICE AND IMAGE FORMING APPARATUS - A fixing device includes a heat member, a belt member, a belt support member, a first rotation member, a second rotation member, and a separation contact mechanism. The belt member is heated by the heat member. The belt support member operably supports the belt member. The first rotation member tightly stretches the belt member with the belt support member. The second rotation member is disposed opposite to the first rotation member through the belt member. The separation contact mechanism makes the heat member to contact the belt member when the first rotation member rotates, and makes the heat member separate from the belt member when the first rotation member halts. | 06-25-2009 |
20090324266 | FIXING DEVICE AND IMAGE FORMING DEVICE - A fixing device comprise an endless fixing belt; a first heater that heats a first predetermined section of the fixing belt, a second heater that heats a second predetermined section of the fixing belt, a switch that determines whether or not the second predetermined section of the fixing belt is heated by the second heater, a controller controls a switching operation of the switch according to a size of a medium on which an image is fixed by the fixing belt, and a temperature controller that reduces a heating temperature of the first heater when the second predetermined section of the fixing belt is heated by the second heater. | 12-31-2009 |
20110003202 | BINDER COMPOSITION FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a binder composition for a nonaqueous electrolyte secondary battery electrode including an antioxidizing agent, able to inhibit the thickening of an electrode slurry. The binder composition enables to form electrode slurry without making the antioxidizing agent adhere to the insides of fine pores of electrode active materials after coating and drying. The binder composition for a nonaqueous electrolyte secondary battery electrode contains a binder and an emulsified antioxidizing agent, and particularly, it is preferable that the binder is an aqueous binder including a diene-based polymer and that the antioxidizing agent is a polymeric phenol compound. | 01-06-2011 |
20120107690 | ELECTRODE FOR SECONDARY BATTERY, SLURRY FOR SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY - A secondary battery electrode which suppresses decrease in capacity and lithium deposition at low temperatures is provided. An electrode for a secondary battery includes an electrode active material layer containing a polymer having a cationic group, an anion corresponding to the cationic group, and an electrode active material, and the cation density in the polymer is 0.1 to 15 meq/g. | 05-03-2012 |
20120189913 | ANODE FOR USE IN A LITHIUM-ION SECONDARY BATTERY, AND LITHIUM-ION SECONDARY BATTERY - A negative electrode for a lithium ion secondary battery including an active material layer that is disposed on a current collector and that contains a negative electrode active material and a binder, in which the negative electrode active material includes an alloy active material and a carbon active material, and the weight ratio between the alloy active material and the carbon active material in the active material layer is 20:80 to 50:50, and the binder contains 0.1 to 15 wt % of an ethylenically unsaturated carboxylic acid monomer polymerization unit. | 07-26-2012 |
20130253268 | RESIN TUBE AND ENDOSCOPE - A channel tube inserted into an insertion portion of an endoscope includes: a rear side tube including, on a part of an outer surface thereof, a helical-shaped groove; and a front side tube including, on a part of an outer surface thereof, a helical-shaped groove; a connecting pipe for connecting one end of the rear side tube and one end of the front side tube; and a coil wound on the groove of the rear side tube. The rear side tube is connected to the connecting pipe at a part where the groove is formed and the coil is not wound, and the front side tube is connected to the connecting pipe at a part where a coil is not wound. | 09-26-2013 |
20140004418 | SLURRY COMPOSITION FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY CELL, NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY CELL, AND LITHIUM ION SECONDARY CELL | 01-02-2014 |
20150030922 | BINDER COMPOSITION FOR SECONDARY BATTERY POSITIVE ELECTRODE, SLURRY COMPOSITION FOR SECONDARY BATTERY POSITIVE ELECTRODE, POSITIVE ELECTRODE, AND SECONDARY BATTERY - [Problem] To provide a binder composition having excellent binding properties, a slurry composition having excellent stability, a cathode having good smoothness, electrode winding properties and binding properties, and a secondary battery having excellent output characteristics. [Solution] The binder composition for a secondary battery cathode of the present invention comprises: polymer A including a polymerised unit having a nitrile group, a polymerised unit having a hydrophilic group, and a linear alkylene polymerised unit having a carbon number equal to or greater than four; and polymer B having a glass transition temperature equal to or greater than 25° C. In this binder composition, the proportion of polymerised units having a hydrophilic group in polymer A is from 0.05 to 20 mass %. | 01-29-2015 |
20150050554 | BINDER COMPOSITION FOR SECONDARY BATTERY POSITIVE ELECTRODE, SLURRY COMPOSITION FOR SECONDARY BATTERY POSITIVE ELECTRODE, SECONDARY BATTERY POSITIVE ELECTRODE, AND SECONDARY BATTERY - Provided are a binder composition which has high electrolyte resistance characteristics, and a secondary battery which uses a positive electrode using the binder composition for high-temperature cycle characteristics. [Solution] The binder composition for the secondary battery positive electrode according to the present invention contains a polymerized unit which contains a nitrile group; a polymerized unit of (meth) acrylic acid ester; a polymerized unit which contains a hydrophilic group; and a polymerized unit of linear alkylene having a carbon number of at least four. In a mixed solvent in which a volume ratio EC:DEC between ethylene carbonate (EC) and diethyl carbonate (DEC) at 20° C. is 1:2, a degree of swelling with respect to an electrolyte in which LiPF | 02-19-2015 |
20150050555 | POSITIVE ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY - A positive electrode for a secondary battery wherein the electrode includes a collector and a positive electrode active material layer which is stacked upon the collector, and which includes a positive electrode active material, a conductive agent, and a binder; the binder includes a first polymer and a second polymer; the first polymer is a fluorine-containing polymer; the second polymer includes a polymerized moiety having a nitrile group, a polymerized moiety having a hydrophilic group, a polymerized (meth)acrylic acid ester moiety, and a straight-chain polymerized alkylene moiety having a carbon number of at least 4; the proportion of the first polymer and the second polymer in the binder, expressed as a mass ratio, is in the range of 95:5 to 5:95. | 02-19-2015 |