Patent application number | Description | Published |
20080299389 | Flame Resistant Fiber, Carbon Fiber and Production Method Thereof - In a flame resistant fiber assembly obtainable by fiber forming a flame resistant polymer, a flame resistant fiber of a higher performance is obtained by improving fiber forming ability. A carbon fiber of a high performance is obtained by carbonizing the flame resistant fiber. At obtaining a flame resistant fiber by subjecting a solution containing a flame resistant polymer modified by an amine-based compound to a wet spinning or a semi-dry spinning in a coagulation bath in such a way that a degree of swelling of a coagulated yarn at the outlet of the coagulation bath is 100 to 1000 wt % and then, in a bath, subjecting to a drawing and/or water washing and to a drying under tension, the flame resistant fiber is produced by controlling temperature of the drawing bath/water washing bath, drying temperature or tension in such a way that the obtained fiber would not crystallize. A carbon fiber is produced by carbonizing the flame resistant fiber. | 12-04-2008 |
20100278716 | DISPERSION CONTAINING FLAME-RESISTANT POLYMER, FLAME-RESISTANT FIBER, AND CARBON FIBER - A dispersion contains a flame-resistant polymer, which can improve shaping stability of the flame-resistant polymer during ejection from a die orifice, and physical stability of a shaped product in a washing step. The dispersion containing a flame-resistant polymer is a dispersion in which a flame-resistant polymer is dispersed in an organic solvent, an in-water tensile strength thereof per unit cross-sectional area is 1.0 MPa or more and 6.5 MPa or less, the flame-resistant polymer can be preferably obtained by heat-treating an acrylonitrile polymer in the presence of at least one kind of acid, acid anhydride or acid chloride in an organic solvent, and a suitable organic solvent is a polar organic solvent. | 11-04-2010 |
20110038788 | CARBON-FIBER PRECURSOR FIBER, CARBON FIBER, AND PROCESSES FOR PRODUCING THESE - A carbon fiber precursor fiber having a weight average molecular weight M | 02-17-2011 |
Patent application number | Description | Published |
20130036803 | CYLINDER INNER PRESSURE DETECTOR FOR INTERNAL COMBUSTION ENGINE - An cylinder inner pressure detector of an internal combustion engine includes: a reference voltage output circuit for outputting a reference voltage having a level, which is selected among multiple levels according to a switching signal; a level shift circuit for shifting a level of a sensor signal of an inner pressure sensor by a selected level of the reference voltage toward a signal potential side corresponding to a low pressure side of cylinder inner pressure; a first A/D converter circuit for converting the shifted sensor signal from an analog signal to a digital signal; and a controller for outputting the switching signal, which provides the reference voltage such that the reference voltage has the level on the signal potential side corresponding to the low pressure side from an offset voltage, and for detecting the cylinder inner pressure based on the digital signal output from the first A/D converter. | 02-14-2013 |
20130060451 | ABNORMAL COMBUSTION DETECTION APPARATUS AND CONTROL UNIT OF INTERNAL COMBUSTION ENGINE - An abnormal combustion detection apparatus detects an abnormal combustion of an internal combustion based on a vibration waveform from a vibration sensor attached to the internal combustion engine. A gain circuit of the apparatus amplifies or attenuates the vibration waveform from the vibration sensor, an AD conversion circuit converts a waveform provided by the gain circuit to digital data, and a gain switching unit switches a gain of the gain circuit from a small gain value to a large gain value at a gain switch timing. The gain switching unit separates a large abnormal combustion from a small abnormal combustion in an abnormal combustion determination period for maximizing a dynamic range of an AD conversion circuit and for securely detecting a change of waveform amplitude in case of gain switching in an abnormal combustion detection operation. | 03-07-2013 |
20130096812 | SENSOR SIGNAL PROCESSING DEVICE - A sensor signal processing device includes an AD conversion section, a filter section, a timing signal generation section, and an arithmetic section. The timing signal generation section generates a signal synchronized with a crank angle of an engine based on a signal indicating the crank angle and generates a data acquisition timing signal by compensating the signal synchronized with the crank angle with a delay time of the filter. The arithmetic section acquires a plurality of sensor signals, which is transmitted from a sensor, converted from an analog signal to a digital signal by the AD conversion section, and filtered by the filter section, in a term before and after receiving the data acquisition timing signal and generates a data synchronized with the data acquisition timing signal. | 04-18-2013 |
20130179052 | SENSOR SIGNAL PROCESSING DEVICE - A microcomputer is formed of a CPU and a detection circuit and inputs sensor signals of a vibration sensor and a rotation sensor. The detection circuit includes an AD converter circuit for AD conversion of the sensor signal of the vibration sensor at a predetermined sampling interval, a peak hold circuit for detecting a peak value of the sensor signal, a RAM for storing the peak value, a counter for detecting a crank angle at a peak value detection time, and an angle calculation part. The microcomputer divides a pre-ignition check interval into plural interval units and checks the pre-ignition based on the peak value detected in each unit interval. The pre-ignition and the knock are checked by using different threshold values in an interval, in which the pre-ignition check interval overlaps a knock check interval. | 07-11-2013 |
20140114599 | IN-VEHICLE ELECTRONIC CONTROL UNIT - An in-vehicle electronic control unit (ECU) for correcting an error introduced to a sensor output signal as a result of amplification is provided. An output voltage of first and second voltage generators and after-amplification voltages of such output voltages are respectively A/D converted for input into a linear function. A microcomputer adjusts the output voltage of the first and second voltage generators which are amplified by the amplification circuit so that the output signals of the first and second voltage generators are adjusted to increase a voltage difference between the two. The increased voltage difference allows accurate identification of the linear function and removal of the error that is introduced to the sensor output signal during the course of processing by the amplification circuit. | 04-24-2014 |
Patent application number | Description | Published |
20130214058 | FLUID EJECTION DEVICE SYSTEM AND MEDICAL APPARATUS - A fluid ejection device system includes: a fluid ejecting unit configured to change a volume of a fluid chamber to thereby eject fluid from a nozzle provided at a distal end of a fluid ejection pipe connected to the fluid chamber; a fluid supplying unit connected to the fluid ejecting unit by a connection tube and configured to supply the fluid to the fluid chamber; a control unit configured to control operation of the fluid ejecting unit and the fluid supplying unit; and a stand configured to hold at least a part of the fluid ejecting unit, and when it is detected that the fluid ejecting unit is held in the stand, the control unit controls at least one of the fluid ejecting unit and the fluid supplying unit to thereby execute a predetermined discharge operation for discharging the fluid in the fluid chamber. | 08-22-2013 |
20150041348 | MEDICAL INSTRUMENT HOLDING APPARATUS - A medical instrument holding apparatus (stand) that holds a medical instrument having a functional unit, includes: an instrument housing unit capable of housing at least a part of the instrument; and a coordination unit which coordinates with the functional unit when at least apart of the instrument is housed in the instrument housing unit. Thus, as the medical instrument is housed in this medical instrument holding apparatus, coordination between the two is possible. | 02-12-2015 |
20150070019 | CONTROL APPARATUS - A control apparatus controls a detachable electric instrument. The control apparatus includes a drive signal output unit configured to output a drive signal to the electric instrument; a relay provided in a sending route of the drive signal; a switching unit configured to output a switching signal that switches the relay between ON and OFF; an inspection signal output unit configured to output an inspection signal that inspects the relay to the sending route in a state in which the electric instrument is not connected; and a blocking determining unit configured to determine whether the inspection signal is blocked by the relay in a state in which the relay is turned OFF by the switching signal. | 03-12-2015 |
20150084641 | CONTROL DEVICE AND TEST METHOD - A control device is connectable to a surgical instrument, and controls the surgical instrument. When the surgical instrument is connected, the control device determines the quality of the surgical instrument by performing a plurality of different tests. | 03-26-2015 |