Patent application number | Description | Published |
20080220302 | FUEL CELL SYSTEM - There is provided a fuel cell system including a fuel supply control mechanism which is disposed between the fuel tank and the fuel cell and capable of interrupting the supply of the fuel; and a temperature sensor provided to a circuit connecting the fuel supply control mechanism to the fuel cell, for changing a resistance value according to at least one of a temperature of the power generation of the fuel cell and a temperature of an electronic device supplied with electric power from the fuel cell, in which the fuel supply control mechanism is operated by a change in the resistance value of the temperature sensor so that the supply of the fuel is interrupted. The system enables more reliably interrupting a supply of a fuel by a passive structure in a control when a temperature of a power generation portion of a fuel cell exceeds an allowable range. | 09-11-2008 |
20080266512 | Liquid Crystal Material, Method for Producing Liquid Crystal Material and Liquid Crystal Device - The present invention provides a liquid crystal material, method for producing the liquid crystal material, and liquid crystal device thereof which shows low light absorption in the ultraviolet light region. A compound of formula (I) | 10-30-2008 |
20090013936 | MATERIAL FOR TREATING EXCRETION OF PET - A pet excreta treating material made mainly of a ground material of plant origin and having a higher water absorbency in the third measurement than in the first measurement, a water absorbency of 3% to 30% by weight in the third measurement, and a specific gravity of 0.8 to 1.2 measured before the first water absorbency measurement. The water absorbency is measured by immersing a dried excreta treating material in 25° C. water for 3 seconds and calculating the weight increase by the equation below, which is taken as water absorbency (%). In the second and following measurements, the excreta treating material immediately after the preceding measurement is dried and immersed in 25° C. water for 3 seconds to obtain a water absorbency in the same manner. | 01-15-2009 |
20090044756 | Sheet for Pets - A pet sheet | 02-19-2009 |
20090053580 | INFLAMMABLE SUBSTANCE SENSOR AND FUEL CELL INCLUDING THE SAME - There is provided an inflammable substance sensor which can be installed in a small space and a fuel cell including the same. The inflammable substance sensor for informing the outside of detection of an inflammable substance includes an odorant releasing member for releasing an odorant due to a chemical reaction of the inflammable substance. | 02-26-2009 |
20090136803 | FUEL CELL SYSTEM - A fuel cell system capable of controlling a fuel cell at a time of starting and at a time of stopping with a simple structure and capable of controlling the influence of the outside air temperature of the use environment. The fuel cell system includes a fuel cell including a power generating portion including a fuel electrode and an oxidizer electrode, for performing power generation based on a fuel supplied from a fuel tank; and a switch provided between the fuel electrode and the oxidizer electrode so as to connect and disconnect a resistor between and with the fuel electrode and the oxidizer electrode. The switching of the connection and disconnection of the resistor by the switch is performed based on at least one temperature difference between two of the power generating portion of the fuel cell, the fuel tank, and outside air. | 05-28-2009 |
20090169926 | METHOD FOR STOPPING POWER GENERATION OF FUEL CELL SYSTEM AND FUEL CELL SYSTEM INCLUDING POWER GENERATION STOPPING UNIT - There is provided a method for stopping power generation of fuel cell system including: a fuel cell having a fuel electrode and an oxidizer electrode; a fuel container; and a fuel flow path for supplying a fuel from the fuel container to the fuel cell, which enables suppression of a pressure difference between the fuel electrode and the oxidizer electrode during a stop state of an operation of the fuel cell, the method including the steps of, during the stop state of the operation of the fuel cell: stopping supply of the fuel from the fuel container to the fuel cell; consuming a residual fuel in the fuel flow path by short-circuiting the fuel electrode and the oxidizer electrode or connecting a load between the fuel electrode and the oxidizer electrode; and opening the fuel flow path to the atmosphere. | 07-02-2009 |
20090208787 | FUEL CELL STACK - A conductance at an oxidizer flow path forming member is defined as C | 08-20-2009 |
20090213896 | FREEZING DETECTION METHOD FOR FUEL CELL - In a method for detecting the freezing of water within a fuel cell, precise detection can be performed using a phenomenon specific to the time when water starts to freeze to allow a reduction in erroneous activation. Detection at an early stage after the start of freezing is allowed, and hence measures can be taken against an output reduction before the water within the fuel cell completely freezes. | 08-27-2009 |
20090233147 | FUEL CELL STACK - A fuel cell stack in which at least one of a plurality of fuel cell units constituting a fuel cell stack includes a water absorbing member with a surface exposed to the atmosphere in a portion where an oxidizer flow path forming member and a separator are in contact with each other, and an area of a surface exposed to the atmosphere of the water absorbing member of the fuel cell unit the temperature of which becomes relatively lower is larger than an area of a surface exposed to the atmosphere of the water absorbing member of the fuel cell unit the temperature of which becomes relatively higher. | 09-17-2009 |
20090260578 | PET TOILET - A pet toilet | 10-22-2009 |
20100119887 | FUEL CELL SYSTEM AND ACTIVATION METHOD FOR FUEL CELL - A cell unit voltage is controlled such that a hydrogen production reaction is caused to occur in an oxidizer electrode, thereby allowing a current corresponding to a moving amount of protons, which is larger than a diffusion limiting current, to pass through a fuel cell. As a result, regardless of a supply amount of an oxidizer, a current larger than a limiting current of a fuel cell reaction is allowed to flow. | 05-13-2010 |
20100167153 | FUEL CELL APPARATUS - Provided is a fuel cell apparatus having a gas permeation mechanism for spontaneously controlling the supply amount of oxidizer from a reduced amount to an amount sufficient for normal operation after a reduction process at the time of activation. The fuel cell apparatus includes a control portion for controlling a potential difference between a fuel electrode and an oxidizer electrode to such a value as to reduce an oxide film of a catalyst used in the oxidizer electrode, and a gas permeation mechanism provided in a flow path through which supplied air flows, wherein the gas permeation mechanism includes a member which allows a gas permeation rate to be controlled depending on surrounding environment. | 07-01-2010 |
20110050040 | ACTUATOR WITH SENSOR - An actuator with a sensor, including an actuator having electrodes and an ionic conduction layer, a sensor and a rigid body member provided in contact with the sensor. The actuator is connected to the sensor through the rigid body member such that the sensor is not deformed attending on deformation of the actuator. | 03-03-2011 |
20110050041 | ACTUATOR WITH SENSOR - An actuator with a sensor, including an actuator having a pair of electrodes and an ionic conduction layer present between the pair of electrodes, and a sensor having electrodes and an electromechanical conversion element. When the actuator is deformed, the sensor is also deformed. The relationship between the modulus of elasticity (A) of the actuator and the modulus of elasticity (S) of the sensor satisfies S03-03-2011 | |
20110156530 | POLYMER ACTUATOR - This invention provides a polymer actuator having a structure such that voltage can be efficiently applied to two or more actuator electrodes without directly providing an electrical contact point to an expanding and contracting portion. | 06-30-2011 |
20110229782 | ACTIVATION METHOD FOR FUEL CELL SYSTEM - A fuel cell system capable of performing activation for stabilizing electrical characteristics of a fuel cell with suppressing generation of polarity inversion associated with drying of a polymer electrolyte membrane and excess power consumption. An activation method for a fuel cell, the fuel cell system including a fuel cell having a fuel electrode and an oxidizer electrode that are provided on both sides of a polymer electrolyte membrane; a resistance detector for detecting an internal resistance of the fuel cell; a load connection portion having a mechanism for connecting a resistor between the fuel electrode and the oxidizer electrode; and a control unit for controlling the load connection portion. The control unit controls the operation of the load connection portion based on a value of the inner resistance of the fuel cell, which is detected by the resistance detector. | 09-22-2011 |
20120032553 | ACTUATOR - An expansion and contraction actuator has a first long actuator portion and a second long actuator portion that face each other and connection members that connect the long sides of each of the first long actuator portion and the second long actuator portion to each other, in which a part of the first long actuator portion and a part of the second long actuator portion are apart from each other to thereby form a hollow structure, the first long actuator portion and the second long actuator portion each have a pair of long electrodes and a long electrolyte layer having an electrolyte, long internal electrodes thereof are the same cathode or anode electrodes, long external electrodes thereof are counter electrodes thereto, and the actuator expands and contracts in the direction of the screw axis by voltage application. | 02-09-2012 |
20120155505 | FREEZING DETECTION METHOD FOR FUEL CELL - In a method for detecting the freezing of water within a fuel cell, precise detection can be performed using a phenomenon specific to the time when water starts to freeze to allow a reduction in erroneous activation. Detection at an early stage after the start of freezing is allowed, and hence measures can be taken against an output reduction before the water within the fuel cell completely freezes. | 06-21-2012 |
20120161574 | ACTUATOR - The present invention provides an actuator which uses a cationically conductive polymer electrolyte and shows a large deformation response. The actuator has a pair of opposing electrodes and an intermediate layer arranged between the pair of the electrodes, which actuator being curved and displaced when voltage is applied to the electrodes, wherein the intermediate layer has at least: the cationically conductive polymer electrolyte having an ether bond site and an anion site in its molecule; and a weakly acidic material which interacts with the ether bond site. | 06-28-2012 |
20120161586 | ACTUATOR - Provided are an electrode having high conductivity and high durability to driving deformation, and an actuator including the electrode, the actuator having a large amount of displacement. The actuator includes a pair of electrodes arranged oppositely and an intermediate layer arranged between the pair of electrodes, the intermediate layer containing an electrolyte, and the actuator being deformed by applying a voltage to the pair of electrodes, in which at least one of the pair of electrodes includes a porous structure containing a first conductive material and having conductivity, a second conductive material, and an electrolyte, pores of the porous structure being filled with the second conductive material and the electrolyte. | 06-28-2012 |
20120228999 | ACTUATOR - The present invention provides an actuator large in the amounts of displacement and generative force. The actuator includes a pair of electrode layers and an electrolyte-containing electrolyte layer interposed between the pair of electrode layers, and transforms upon application of a voltage thereto to cause ions in the electrolyte to migrate, wherein the electrolyte layer includes at least one polymer fiber layer made of polymer fibers and at least some of the polymer fibers of the polymer fiber layer are uniaxially oriented within a plane of the electrolyte layer. | 09-13-2012 |
20120235543 | ACTUATOR - There is provided an actuator that can deform as an electrolyte moves, wherein at least one of a pair of electrode layers contains polymer fibers, and the polymer fibers contain an electroconductive material and are porous. | 09-20-2012 |
20120235545 | ACTUATOR - A difference is arisen in the electric potential of the electrode layer between a fixed end portion and a displacement end portion of an actuator. The electrode layer includes a bundle of polymer fibers containing a conductive material. Longitudinal directions of the polymer fibers are arranged parallel to a direction from the fixed portion to the displacement end portion of the actuator. | 09-20-2012 |
20130082542 | ACTUATOR - An intermediate layer of polyurethane containing an electrolyte in a high concentration can be produced with good productivity and an actuator element having high generative force is provided. | 04-04-2013 |
20130119821 | ACTUATOR - An actuator includes a pair of electrodes facing each other, an intermediate layer containing an ionic liquid and arranged between the pair of electrodes, the electrodes and the intermediate layer being deformed when a potential difference larger than a potential window of the ionic liquid is applied between the electrodes, and insulating layers that suppress direct contact between ions of the ionic liquid and the electrodes, the insulating layers being arranged between the intermediate layer and the electrodes. | 05-16-2013 |
20140168746 | ELECTROCHROMIC ELEMENT, METHOD FOR DRIVING THE SAME, AND OPTICAL FILTER - Provided is an electrochromic element having: a pair of electrodes; an electrochromic layer which is provided between the pair of electrodes and has an electrolyte and an electrochromic material; and a spacer which surrounds a periphery of the electrochromic layer, the element having a change mechanism that changes a thickness of the electrochromic layer. | 06-19-2014 |
20140250881 | ACTUATOR - This invention provides an actuator which is easy to control the drive and has large generative force. | 09-11-2014 |
20140362430 | DRIVER FOR ELECTROCHROMIC ELEMENT, METHOD FOR DRIVING ELECTROCHROMIC ELEMENT, OPTICAL FILTER, IMAGING DEVICE, LENS UNIT, AND WINDOW COMPONENT - A driver for an electrochromic element is configured to adjust the transmittance of a solution-type electrochromic element to allow the element to display a tone. The element has a pair of electrodes and at least one organic electrochromic material mixed between the electrodes. The driver has an adjusting controller configured to adjust the transmittance of the element. The adjusting controller has controller A and controller B. Controller A is configured to saturate a change in the transmittance of the element to an initial state by applying the voltage which resets the element to the initial state. Controller B is configured to control the tone of the element by applying the voltage which adjusts the transmittance of the element following controller A. | 12-11-2014 |