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公开(公告)号：JPH05164640A
公开(公告)日：1993-06-29
申请号：JP34973091
申请日：1991-12-10
Applicant: TORAY INDUSTRIES
Inventor： KATO TOMIO , YAMAMOTO MASAKAZU , ITO TORU
Abstract: PURPOSE:To ensure the highly sensitive performance of a pressure sensor by equalizing the capacities of fluid-pressure introducing paths into two film-shaped piezoelectric elements, removing the inconvenience in measurement of a flow rate when a fluid to be measures is not flowing, and equalizing the pressure propagating speeds to the upper and rear surfaces of each piezoelectric element. CONSTITUTION:In a pressure sensor 1, two piezoelectric elements 2 and 3, wherein electrode layers are provided on both surfaces of each film-shaped piezoelectric body, are arranged so that the surfaces in the same direction form the same polarization. Fluid pressure is introduced through inlet nozzles 39 and 40 on the first surface of one piezoelectric element and the second surface of the other piezoelectric element and the first surface of the other piezoelectric element and the second surface of one piezoelectric element, respectively. Means 51 and 52, which can adjust the capacities of the paths, are provided for at least one of fluid-pressure introducing paths 42, 43, 44 and 45.
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公开(公告)号：JPH0267144A
公开(公告)日：1990-03-07
申请号：JP21948588
申请日：1988-08-31
Applicant: TORAY INDUSTRIES
Inventor： ITO TORU , YOSHIYAMA TAKASHI , MIZUKAMI TAKESHI
Abstract: PURPOSE:To make the timing of electrification optimum and to accurately detect and adjust a deflection width by mounting the second gutter provided with a pair of deflection width detection electrodes and a charge quantity detection electrode for detecting the charge quantity of an ink droplet. CONSTITUTION:In a detection mode, a charged ink droplet is allowed to arrive at the second gutter 22 as an ink droplet to be detected and the charge quantity thereof is detected by a charge quantity detection electrode 24 to be fed back to a charge electrode control system as an electric signal. Herein, the timing of a pulse is selected so that the charge quantity of the ink droplet to be detected becomes max. under the constant pulse voltage applied to a charge electrode. A deflection width is detected by detecting whether the ink droplet to be detected arrives at deflection detecting electrodes 23a, 23b or the vicinities thereof. The detection result is fed back to the charge electrode control system as an electric signal and, when no ink droplet to be detected arrives at said electrodes, the voltage of the charge electrode is adjusted so as to allow the ink droplet to arrive and the deflection width is adjusted.
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公开(公告)号：JPH0263843A
公开(公告)日：1990-03-05
申请号：JP21886388
申请日：1988-08-31
Applicant: TORAY INDUSTRIES
Inventor： ITO TORU , YOSHIYAMA TAKASHI , MIZUKAMI TAKESHI
Abstract: PURPOSE:To detect a flight speed of ink particles during printing without mounting a nozzle exclusive for detecting a flight speed by calculating a phase difference between a chopper signal and a signal generated correspondingly to charge amounts of particle groups excepting printing ink particles, which are divided by a specific method and characterized. CONSTITUTION:All of a first ink particle group A, being composed of continuous six ink particles selected from among ink particles other than printing ink particles 6a on the basis of a chopper signal S7 are electrically charged by predetermined amounts to become phase detecting ink particles 6b. On the other hand, all of a second ink particle group B composed of succeedingly continuous six particles are not electrically charged to become uncharged ink particles 6c. Then, a difference between the phase of a detection signal generated correspondingly to the charge amounts and that of the chopper signal S7 is calculated. According to this phase difference a flight speed of the ink particle 6 is detected. Therefore, the flight speed of the ink particle can be detected with high accuracy during printing without mounting a nozzle exclusive for detecting the flight speed.
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公开(公告)号：JPH0263842A
公开(公告)日：1990-03-05
申请号：JP21886288
申请日：1988-08-31
Applicant: TORAY INDUSTRIES
Inventor： ITO TORU , HAYASHI KAZUROU , MIZUKAMI TAKESHI
IPC: B41J2/115
Abstract: PURPOSE:To detect a relation between an ink particle generation phase and the phase of a recording signal stably and correctly by calculating a count value based on a binary level signal obtained from charge amounts of two particle groups excepting printing ink particles, which are divided by a specific method and characterized. CONSTITUTION:All of a first ink particle group A, being composed of continuous six particles selected from among ink particles other than printing ink particles 6a on the basis of a chopper signal S7 having a predetermined phase, are electrically charged. On the other hand, all of a second ink particle group B composed of succeedingly continuous six particles are not electrically charged. Then, according to a detection signal generated corresponding to the charge amounts of the particle groups A, B, a binary level signal S11 is generated corresponding to the charge amounts. Furthermore, based on a count value obtained on the basis of the signal S11, a phase relation between a phase of generating the ink particle 6 and the phase of a recording signal S9 is detected. Therefore, a relation between an ink particle generation phase and the phase of a recording signal can be detected stably and correctly without being affected by a noise.
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公开(公告)号：JPH0262243A
公开(公告)日：1990-03-02
申请号：JP21427788
申请日：1988-08-29
Applicant: TORAY INDUSTRIES
Inventor： ITO TORU , HAYASHI KAZUROU , YOSHIYAMA TAKASHI
Abstract: PURPOSE:To improve the quality of printing by conducting printing so that mutually adjacent positions in a first direction of a plurality of dot groups printed by a recording head are set randomly in a second direction. CONSTITUTION:A region 2A printed by a first recording head and a region 2B printed by a second recording head are overlapped. The boundaries (positions where dots 1a and dots 1b are adjoined in the X direction) of dot groups 1A formed by arranging a plurality of the dots 1a in the X direction and dot groups 1B shaped by disposing a plurality of the dots 1b in the X direction are distributed randomly in the Y direction. Accordingly, the boundaries of overlapped regions 2 and regions except the regions 2 are not shaped to a straight line and are formed randomly, thus preventing the appearance of band-shaped black stripes and white stripes, etc. in the regions 2, then improving the quality of printing.
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Patent Agency Ranking
公开(公告)号：JPS61246202A
公开(公告)日：1986-11-01
申请号：JP8625485
申请日：1985-04-24
Applicant: TORAY INDUSTRIES
Inventor： ITO TORU , SEKOGUCHI TAKESHI , OKA KOICHIRO
IPC: C08G59/00 , A61K8/00 , A61K8/04 , A61K8/72 , A61K8/86 , A61Q1/00 , A61Q1/02 , A61Q17/04 , A61Q19/00 , B01J2/02 , C08F2/00 , C08G59/18 , C08G59/20 , C08G59/50 , C08G85/00 , C08J3/12
Abstract: PURPOSE:To obtain the title high-grade polymer suitable as, e.g., an additive for cosmetics, toners, etc., by discharging a monomer or an oligomer in the form of fine particles by giving a varied flow rate by applying an alternating voltage to a pressure element, dispersing the fine particles by applying thereto electric charges and curing or polymerizing the particles. CONSTITUTION:A feed solution comprising a monomer comprising an epoxy compound or its oligomer, a curing agent comprising an amine compound and a solvent and having an electric conductivity >=10 OMEGAcm is sent from a feed tank 10 through a means 11 for pressurization, such as a booster pump, and a pipe 12 at a pressure of 1-20kg/cm to a nozzle member 20 and this nozzle is filled with this solution to its fore end. In this state, a pressure element 22 is allowed to contract and expand alternately by applying thereto an alternating voltage of a frequency of 10,000-200,000Hz/s through a means 23 for applying an alternating voltage, whereupon the monomer stream discharged from the fore end of the nozzle can be given a varied flow rate and is discharged outward to form fine particles of uniform particle diameters. At the same time, these particles are dispersed by a application of a D.C. voltage of 1,000-10,000V through a means 24 for applying electric charges, received by a fine particle receiver 30 and cured or polymerized to obtain a fine particulate polymer of a diameter of several to several hundreds mu.
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公开(公告)号：JPS61243803A
公开(公告)日：1986-10-30
申请号：JP8466185
申请日：1985-04-22
Applicant: TORAY INDUSTRIES
Inventor： ITO TORU , SEKOGUCHI TAKESHI , MURAO YASUO , OKA KOICHIRO
IPC: C08G59/00 , B29B9/00 , C08F2/00 , C08F20/10 , C08G59/18 , C08G59/20 , C08G59/50 , C08G85/00 , C08J3/12
Abstract: PURPOSE:To obtain fine particulate polymer having an orderly particle diameter distribution, by charging a liquid chamber provided with a piezoelectric element with a monomer, increasing the pressure in this chamber by applying a pulsed voltage to the element, discharging a fine particulate monomer from a nozzle and polymerizing and curing the monomer. CONSTITUTION:The front end of a liquid chamber 20 communicating with a feed tank 10 is provided with a nozzle 21 having fine holes. Liquid chamber 20 is surrounded with a piezoelectric element 22. After liquid chamber 20 has been filled to its front end with a monomer or an oligomer fed from the feed tank 10, a pulsed voltage from a means 23 for applying a pulsed voltage is applied to piezoelectric element 22 to allow it to contract inwardly as shown by the broken lines and generate a pressure in liquid chamber 20. In this way, fine particulate monomer or oligomer is discharged from nozzle 21 and is received by a receiver 30 filled with a liquid in which the monomer or the oligomer is not soluble. This monomer or oligomer is polymerized and cured to obtain fine particulate polymer.
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公开(公告)号：JPH06186105A
公开(公告)日：1994-07-08
申请号：JP35444692
申请日：1992-12-15
Applicant: TORAY INDUSTRIES
Inventor： KATO TOMIO , YAMAMOTO MASAKAZU , ITO TORU
Abstract: PURPOSE:To provide a pressure sensor wherein it corrects a vibration, a temperature fluctuation and a noise propagated to the whole of a fluid by means of a sensor structure, it executes an electric-signal processing operation, its S/N ratio is extremely high, its sensitivity is high and its reliability is high. CONSTITUTION:Two piezoelectric elements 2, 3 in which electrode layers have been formed on both faces of each filmlike piezoelectric body are arranged in such a way that faces in the same direction become the same polarizing polarity. Then, in a pressure sensor, a fluid pressure is introduced from two entrance nozzles respectively into a first face on the piezoelectric element on one side and into a second face on the piezoelectric element on the other side as well as into a first face on the piezoelectric element on the other side and into a second face on the piezoelectric element on one side, the faces, whose polarizing polarity is different from each other, on the piezoelectric elements 2, 3 are connected electrically, outputs from the piezoelectric elements are passed through a filter circuit 51 and the outputs are amplified.
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公开(公告)号：JPH05193136A
公开(公告)日：1993-08-03
申请号：JP850592
申请日：1992-01-21
Applicant: TORAY INDUSTRIES , UIRUKOMU PTY LTD
Inventor： YOSHIYAMA TAKASHI , ITO TORU , ROBAATO GAABAA PONGURASU
Abstract: PURPOSE: To maintain an improved printing quality for an inkjet printer. CONSTITUTION: The printer incorporates a nozzle unit 1 which continuously delivers ink drops A, an electric charge electrode 8 which is disposed in front of the nozzle unit 1 and gives electric charge to the ink drops A on the basis of printing information, and a pair of deflecting electrodes 11, 12 which are disposed in front of the electric charge electrode 8 and deflect the flying direction of the charged ink drops. The printer also incorporates a controller 6 to detect and correct the deviation of deflection of the ink drops A using the flying speed of the ink drops A detected on the basis of a scattered laser light generated from the ink drops A which pass the laser beam crossing section P regulated between a pair of deflecting electrodes 11, 12 and printing paper B.
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公开(公告)号：JPH0248955A
公开(公告)日：1990-02-19
申请号：JP20083688
申请日：1988-08-11
Applicant: TORAY INDUSTRIES
Inventor： ITO TORU , HAYASHI KAZUROU , MIZUKAMI TAKESHI
IPC: B41J2/075
Abstract: PURPOSE:To perform recording of good precision even through a kind and a condition of a recording surface vary by a method wherein an auxiliary deflecting electrode which deflects an ink drop reversely to a deflecting direction made by a deflecting electrode. CONSTITUTION:An ink drop is charged according to recording information with a charging electrode 2, deflected with a deflecting electrode 3, and directed to a recording surface 4 to perform recording. At that time, the more charged ink drop is deflected by the larger angle, and reaches the recording surface 4 tracing a locus 5, the less charged ink drop is deflected by the smaller angle, and reaches the recording surface 4 tracing a locus 6. Before those ink drops reach the recording surface 4, they are deflected reversely to the deflecting direction by the deflecting electrode 3 with an auxiliary deflecting electrode 9 so that flying loci of respective ink drops become parallel to each other between the differently charged ink drops.
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