172results about How to "Avoid thermal damage" patented technology

A system for treating an abnormal vertebral body such as a compression fracture. In an exemplary embodiment, the system includes a biocompatible flow-through implant structure configured with a three-dimensional interior web that defines flow openings therein for cooperating with a two-part hardenable bone cement. The flow-through structure is capable of compacted and extended shapes and in one embodiment provides a gradient in flow openings for controlling flow parameters of a bone cement injected under high pressure into the interior thereof. The flow-through implant structure is configured for transducing cement injection forces into a selected direction for moving apart cortical endplates of a vertebra to reduce a fracture. In one embodiment, the flow-through implant structure is coupled to an Rf source for applying Rf energy to a two-part bone cement to accelerate curing of the cement to thereby allow on-demand alterations of cement viscosity. The Rf system allows for control of bone cement polymerization globally or regionally to prevent cement extravasion and to direct forces applied to a vertebra to reduce a fracture.

A battery protective device that protects against battery damage and semiconductor destruction from overdischarge and overcharge of the battery. Resistance across switching elements is controllable to prevent current leakage through parasitic dipole elements in the integrated circuit. Current is detected with an overdischarge detecting circuit and an overcharge detecting circuit. Direction of the current to/from the battery is detected by discharge overcurrent and charge overcurrent detecting circuits. Switching discharge FETs and charge FETs are enabled as independently controlled, ON-OFF parallel switching elements, interposed in series in the charge/discharge current path of the battery. Only a part of the discharge or charge switching FETs can be turned ON and OFF for accurate current control in accordance with the detected current and its direction.

A partition partitions off a motor chamber and a pump chamber, through which a cooling water flows, a substantially cylindrical-cup shaped rotor is arranged in the pump chamber, a circuit board is disposed in the motor chamber to be in parallel to an annular-shaped end surface of the rotor, a magnetism detecting element is mounted on that portion of the circuit board, which faces a magnet portion of the rotor, and exothermic electronic parts are mounted on the remaining portion of the circuit board. The magnetism detecting element and the exothermic electronic parts, respectively, are arranged in opposite positions in a substantially annular-shaped area of the circuit board, which faces the annular-shaped end surface of the rotor, and a thickness of an annular-shaped wall portion of the partition facing the annular-shaped end surface of the rotor is made thin in a portion adjacent to the exothermic electronic parts on condition that an annular-shaped surface of the annular-shaped wall portion on a side of the annular-shaped end surface of the rotor is a non-inclined flat surface.

The present invention is a system and method for laser-assisted singulation of light emitting electronic devices manufactured on a substrate, having a processing surface and a depth extending from the processing surface. It includes providing a laser processing system having a picosecond laser having controllable parameters; controlling the laser parameters to form light pulses from the picosecond laser, to form a modified region having a depth which spans about 50% of the depth and substantially including the processing surface of the substrate and having a width less than about 5% of the region depth; and, singulating the substrate by applying mechanical stress to the substrate thereby cleaving the substrate into said light emitting electronic devices having sidewalls formed at least partially in cooperation with the linear modified regions.

The invention discloses a split electric wheel system with a thin excitation-free electromagnetic parking braking device. The split electric wheel system is applied to a wheel hub motor, aims to solve the problem of complex structure of the existing electric wheel vehicle braking system, and comprises a wheel, the wheel hub motor, a brake disc, a motor shell crossover flange, an electromagnetic brake, a suspension beam end part and a sleeve, wherein the suspension beam end part, the electromagnetic brake, the motor shell crossover flange, the brake disc, the wheel hub motor and the wheel are sleeved on a motor shaft in sequence, the sleeve is hollowly sleeved on the motor shaft and is located between the motor shaft and the motor shell crossover flange, one end of the sleeve is in contact with the flange of the suspension beam end part, the other end of the sleeve is in contact with the shaft shoulder of the motor shaft, the wheel and a shell on the outer side of the wheel hub motor are fixedly connected by rim bolts, the motor shell crossover flange, the brake disc and a shell on the inner side of the wheel hub motor are fixedly connected in sequence by brake disc bolts, one end of the electromagnetic brake is in splined joint with the motor shell crossover flange, and the other end of the electromagnetic brake is sleeved on the flange of the suspension beam end part.

The present invention includes a first step of forming a nitride semiconductor layer by metal organic chemical vapor deposition by using a first carrier gas containing a nitrogen carrier gas and a hydrogen carrier gas of a flow quantity larger than that of the nitrogen carrier gas to thereby supply a raw material containing Mg and a Group V raw material containing N, and a second step of lowering a temperature by using a second carrier gas to which a material containing N is added, and hence solves the problems.

The invention discloses a plasma treatment device for polymer material surface modification. The plasma treatment device comprises a direct-current power supply and a reaction chamber, wherein a metal anode and a liquid cathode which are connected with the direct-current power supply are arranged in the reaction chamber correspondingly; a liquid-medium container used for containing the liquid cathode is arranged in the reaction chamber; the metal anode is arranged right above a liquid level of the liquid cathode; and the reaction chamber is internally provided with a gas inlet system for circulating gas media. The invention further discloses a plasma treatment method for the polymer material surface modification. The plasma treatment method comprises the following steps of 1) placing a polymer material to be treated below the liquid level of the liquid cathode; 2) starting the gas inlet system to conduct gas inlet on the reaction chamber; 3) turning on the direct-current power supply, adjusting a space between the metal anode and the liquid cathode to allow discharge plasma to generate between the metal anode and the liquid cathode, and beginning to conduct plasma treatment on the polymer material; and 4) turning off the direct-current power supply after the treatment, and taking out the polymer material.

A fixing apparatus includes: a fixing roller and a pressure roller which transport a recording paper while sandwiching the recording paper P therebetween so that an unfixed toner image formed on the recording paper is fixed thereon under heat and pressure; two support rollers; an endless belt which is set over the support rollers and comes into contact with a surface of the fixing roller; and heater lamps which are provided respectively inside the support rollers. A fixing apparatus satisfies a relationship indicated by (C2+C3)/C1≧2 where C1 is a heat capacity of each of the heater lamps, C2 is a heat capacity of each of the support rollers, and C3 is a heat capacity of the endless belt in each of areas where the endless belt is in contact with the support rollers. This realizes an external belt heat fixing apparatus which suppresses (a) heat damage to the endless belt and the surface of the fixing member and (b) unevenness of an image.

An IDT electrode 3 , and an input electrode section 5 and an output electrode section 6 each connecting with the IDT electrode 3 are formed in a filter region on one main surface of a piezoelectric substrate 2 , and a semiconductor layer 22 is formed on the other main surface opposite to the one main surface of the piezoelectric substrate 2 . The semiconductor layer 22 makes it possible to prevent pyroelectric destruction in the device manufacturing process as well as to prevent out-of-band attenuation characteristics from being degraded.