35results about How to "Good maintenance characteristics" patented technology

A sliding assisting apparatus for assisting a sliding operation wherein a movable body slidably engaged with a base is slid between a first sliding position and a second sliding position includes sliders, a spring member, lock members and operation members. The sliders are engaged with the movable body and capable of sliding in the same one or more directions as the movable body. The spring member is capable of accumulating force in the sliding operation of the movable body and connecting the respective sliders together. The lock members are each capable of engaging with one of the sliders to exert the accumulated force on the slider, and disengaging from the slider to release the accumulated force from the slider. Operation members are each capable of engaging and disengaging with the lock member for engaging the lock member with a slider and disengaging a lock member from the slider.

A nonvolatile ferroelectric memory device is provided so as to control read/write operations of a nonvolatile memory cell using a channel resistance of the memory cell which is differentiated by polarity states of a ferroelectric material. In the memory device, an insulating layer is formed on a bottom word line, and a floating channel layer comprising a P-type drain region, a P-type channel region and a P-type source region is formed on the insulating layer. Then, a ferroelectric layer is formed on the floating channel layer, and a word line is formed on the ferroelectric layer. As a result, the resistance state induced to the channel region is controlled depending on the polarity of the ferroelectric layer, thereby regulating the read/write operations of the memory cell array.

A device which improves the starting of a high pressure discharge lamp containing a large amount of mercury, in which the amount of mercury adhering to the lamp electrodes is not the same, by shortening the formation time of the glow discharge in order to reduce the sputtering of the electrodes to a minimum. When the discharge lamp starts, an AC voltage with rectangular waves produced by the full bridge circuit is applied to the discharge lamp. Next, a high voltage pulse is superimposed and applied by an igniter device; the pulse is synchronized to the polarity of the above described AC voltage with rectangular waves. As a result, an alternating current discharge is started in the discharge lamp. Then, the ON/OFF state of the switching devices in the full bridge circuit is fixed and a direct current voltage is applied to the lamp. After a pre-selected time has expired after the transition into direct current operation, the full bridge circuit is operated such that rectangular alternating current waves form. The AC voltage with rectangular waves is then applied to the discharge lamp and a transition into steady-state operation is carried out.

Adjustment of the illumination range to a liquid crystal panel of a liquid crystal projector requires time in fixing upon adjustment and accordingly it is an object to make the adjustment effectively. In an adjustment mechanism of the illumination range of illumination means to the liquid crystal panel in an optical engine unit of the liquid projector, the spring property is provided in a lens holder for holding a lens and the lens is temporarily held by friction of the spring portion to the optical engine case after adjustment. Then, the adhesion processing is made to complete the adjustment.

A fuel cell system is provided. More specifically, the fuel cell system is made up of an aggregate of unit fuel cells, an air supply unit, a humidifier, a hydrogen supply unit, and a valve unit. The valve unit is configured to be connected to a stack and the humidifier. This valve unit prevents external air from being introduced to an air supply path and an air exhaust path through the humidifier when the stack is turned off. More specifically, the valve unit includes a valve body component constituting the air supply path as first and second valve passages and the air exhaust path as third and fourth valve passages and an opening and closing component for opening and closing the air supply path and the air exhaust path.

The present invention provides a negative active material for a secondary battery with an improved expansion rate, which is formed by a formula below, and in which an expansion rate of the negative active material after 50 cycles is 70 to 150%, and an amorphization degree on a matrix within an alloy has a range of 25% or more, and Si has a range of 60 to 70%, Ti has a range of 9 to 14%, Fe has a range of 9 to 14%, and Al has a range larger than 1% and less than 20%. Formula: Si_xTi_yFe_zAl_u (x, y, z, and u are at %, x: 1−(y+z+u))

A fluid delivery system for a fluid distribution system such as a manure distribution inlet. The invention provides an improved coupling between a supply hose and the newer distribution implement includes an angled pipe coupled to a first collar and a second collar. The collars define keyways within which rotate an annular key provided around an inlet pipe and an annular key provided around an outlet pipe. The inlet pipe, outlet pipe and angled pipe are preferably constructed of polished steel to reduce the wear associated with constant rotation of the pipes relative to one another. The combination of the keyways and polished steel construction allows the pipe to be rotated constantly with only a minimum amount of wear, and improved maintenance and failure characteristics.

A flash memory device includes a cell string having a plurality of cell transistors connected in series, and a string selection transistor and a ground selection transistor connected to both ends of the cell string, respectively, wherein the cell transistor has a channel impurity concentration higher than a channel impurity concentration of at least one of the string selection transistor and the ground selection transistor.

Proton-conducting hybrid glass and a method for manufacturing the same. The proton-conducting hybrid glass has CsPWA created inside the pores of borosilicate glass. The proton-conducting hybrid glass can be used as an electrolyte for electrochemical devices, such as fuel cells and sensors. When the proton-conducting hybrid glass is used as an electrolyte membrane for a fuel cell, excellent thermal and chemical stability is realized in the range from a high temperature to an intermediate temperature of 120° C. A high proton conductivity of 10⁻³S/cm or higher and good catalytic activity are realized. In addition, high volumetric stability and excellent moisture retention characteristics in high and intermediate temperature ranges are achieved.

Disclosed is a negative active material having a reduced volume change during charge/discharge. A fine crystalline region exists on a matrix of an alloy, and lithium is easily dispersed due to the fine crystalline region. In the negative active material, a ratio of the fine crystalline region is represented by an amorphization degree, and is optimized in designing a battery through a measurement of an expansion rate after 50 cycles. The negative active material is used for a secondary battery and includes an alloy formed by a chemical formula below: (a ratio of Ti to Fe is 1:1 and a ratio of Si:Ti or Si:Fe has a range of 5:1 to 9:1.)

Si—⁻_xTi_yFe_zAl_u

where x, y, z, and u are at %, x: 1−(y+z+u), y: 0.09 to 0.14, z: 0.09 to 0.14, and u: larger than 0.01 and less than 0.2.