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21. 发明专利

JPH01187732A MAGNET DRIVING DEVICE FOR CATHODE-RAY TUBE 失效
公开(公告)号：JPH01187732A
公开(公告)日：1989-07-27
申请号：JP1060688
申请日：1988-01-22
申请人： HITACHI LTD
发明人： ATOBE TAKASHI , KARASAWA TAKUMI , TSUKII NORIO , NISHIYAMA EIICHI
IPC分类号： H01J9/44
摘要： PURPOSE:To enable the revolution of a motor to exactly transmit to a magnet by forming a tooth form onto the magnet and driving it by pressing a gear onto the tooth form with a spring. CONSTITUTION:A gear mating with the tooth form of a magnet is fitted to each separate rotating shaft and pressed onto the magnet with a spring. Therefore, plural numbers of gear can be arranged so that they mate with respective tooth forms of plural numbers of magnet while being pressed onto each other by springs always without backlash. Thereby, because the force pressing onto each other is applied uniformly onto the neck-position outer periphery of a cathode-ray tube, the revolution of a motor is exactly transmitted to respective magnets.

22. 发明专利

JPS6443944A CHECKUP METHOD FOR FRIT SEALING PART FOR CATHODE RAY TUBE 失效
公开(公告)号：JPS6443944A
公开(公告)日：1989-02-16
申请号：JP19970187
申请日：1987-08-12
申请人： HITACHI LTD
发明人： KARASAWA TAKUMI
IPC分类号： H01J9/42 , H01J9/26
摘要： PURPOSE:To make even a minute defect detectable in an accurate manner by impressing high voltage on the anode of a cathode ray tube, keeping a frit sealing part grounded intact, and measuring an all-round temperature of the frit sealing part, then detecting any defect of the frit sealing part by a temperature change. CONSTITUTION:High voltage is impressed on the anode 5 of a cathode ray tube 2, and a frit sealing part 3 is left grounded intact, then an all-round temperature of the frit sealing part 3 is measured by a temperature detector 16 from the outside. Considering that the frit sealing part is divided into such size as involving a minute defect, a normal part is in almost the same temperature, namely, generation of heat by a charging current for the frit sealing part comes to the same. Contrast with this, in a part where the minute defect exists, a conductive part by the defect is added thereto, so that the current is yet easier to flow, and it comes to a self-accretion, thus temperature becomes higher as compared with the other. Consequently, the minute defect can be made findable by a change portion of this temperature.

23. 发明专利

JPS6122535A Crt transfer device 失效
标题翻译： CRT传输设备
公开(公告)号：JPS6122535A
公开(公告)日：1986-01-31
申请号：JP14052184
申请日：1984-07-09
申请人： Hitachi Ltd
发明人： ENOMOTO TAKAO , SAWAMOTO KAZUO , KARASAWA TAKUMI
IPC分类号： H01J9/44 , H01J9/46
CPC分类号： H01J9/46
摘要： PURPOSE:To enable a picture tube to be automatically taken out from a hanger and then placed on a given pallet by providing a mechanism for transferring the head and a mechanism for extracting an aging socket. CONSTITUTION:When an air cylinder 41 is operated, a socket extracter not indicated in the figure moves down to extractan aging socket from a picture tube 2. Then, when an air cylinder 21 moves backward and an air cylinder 24 moves forward, an arm 20 moves backward and a head 22 moves backward and rotates counterclockwise by 90 deg. to place the picture tube 2 in a horizontal position. Following that, when a slidable base 16 is moved downward by the operation of an air cylinder 17, the picture tube 2 moves downward and a pallet 53 which is moved upward by a lift 50 supports the picture tube 2 from under it. When the picture tube 2 is released from its clampled state by the operation of air cylinders 30 and 35m the lift 50 moves downward and the pallet 53 is conveyed by a mechanism not indicated in the figure along a guide path 52.
摘要翻译：目的：使显像管能够自动从挂钩中取出，然后通过提供转印头的机构和提取老化插座的机构放置在给定的托盘上。构成：在气缸41动作的情况下，图中未示出的插座释放器从显像管2向下移动到拔出老化插座。然后，当气缸21向后移动并且气缸24向前移动时，臂20 向后移动，并且头部22向后移动并逆时针旋转90度。以将显像管2放置在水平位置。此后，当可滑动的底座16通过气缸17的操作向下移动时，显象管2向下移动，并且由升降机50向上移动的托盘53从其下支撑显像管2。当显像管2通过气缸30和35m的操作从其取样状态释放时，升降器50向下移动，并且托盘53沿着引导路径52由图中未示出的机构输送。

24. 发明专利

JPH09320470A STRAY EMISSION MEASURING APPARATUS FOR COLOR CATHODE-RAY TUBE 失效
公开(公告)号：JPH09320470A
公开(公告)日：1997-12-12
申请号：JP12959196
申请日：1996-05-24
申请人： HITACHI LTD
发明人： KARASAWA TAKUMI , MEGURO KIMIO
IPC分类号： H01J9/42
摘要： PROBLEM TO BE SOLVED: To measure stray emission and leakage current of a color cathode ray tube within a short time without requiring complicated switching of high voltage circuit by installing a grid power source, a measuring means to measure the quantity of luminescence, and a processing apparatus. SOLUTION: A photoelectric conversion element 15 to detect the luminescent state of the electroluminescent face of a color cathode-ray tube 1 is installed in front of the tube 1 and the output of the element 15 is processed by a processing apparatus 16. The processing apparatus 6 controls a first grid power source 12, a second grid power source 13, and a third grid power source 14 and further processes the current measured by ammeters 9, 10, 11. In other words, the apparatus 16 computes the inclination of the quantity of luminescence obtained at the time when the second grid voltage is elevated from zero to a prescribed value and then the third grid voltage is elevated from zero to a prescribed value based on the output properties of the ammeters 10, 11 and computes the stray emission quantity of each electrode. Consequently, since stray emission and the leakage current can be simultaneously computed without switching, so that the measuring time can be remarkably shortened.

25. 发明专利

JPH07296725A EXPOSURE DEVICE FOR COLOR CATHODE-RAY TUBE 失效
公开(公告)号：JPH07296725A
公开(公告)日：1995-11-10
申请号：JP9103694
申请日：1994-04-28
申请人： HITACHI LTD
发明人： KARASAWA TAKUMI , ISHIKAWA TAKAAKI , MUTOU HIROBUMI
IPC分类号： H01J9/227
摘要： PURPOSE:To form a normal color phosphor screen even if a panel of which shape and size are slightly different from the datum value is used, by measuring a distance and correlative position from a light source to the panel and constituting a color cathode-ray tube in such a state as correcting the position and the attitude of the light source relative to the panel based on the results of measurement. CONSTITUTION:Following methods are adopted for an exposure device in which a photosensitive black lead film or a three-primary-color phosphor film formed on the inside face of a panel is exposed via a shadow mask and a phosphor screen of a color cathode-ray tube is formed by photolithography: before exposure to assembling of a specified panel 3 and a shadow mask 50, a means (for example, laser, laser 55, 56, 53, 54) for measuring distances between center parts p1, p2 of the panel 3 to be exposed plus sealing faces p3, p4 for surrounding funnel, and light source 11 for exposure, and a means for measuring parallel moving components of the light source for exposure and the panel are provided. The position and inclination of the light source 11 for exposure are corrected based on three-dimensional coordinates obtained by these measuring means.

26. 发明专利

JPH06267455A ADJUSTING DEVICE FOR COLOR CATHODE-RAY TUBE WITH DEFLECTION YOKE 失效
公开(公告)号：JPH06267455A
公开(公告)日：1994-09-22
申请号：JP5373193
申请日：1993-03-15
申请人： HITACHI LTD
发明人： ISHIKAWA TAKAAKI , KARASAWA TAKUMI
IPC分类号： H01J29/54 , H04N9/28
摘要： PURPOSE:To automatically and independently conduct meshing between each magnet ring and each corresponding external gear by providing a plurality of rack gears and pressing means for pressing each rack gear to each magnet ring. CONSTITUTION:This device is provided with rack gears 7A-7F, fitting metal fixtures 11A-11F as pressing means and springs 12 for upwardly energizing the fitting metal fixtures 11A-11F to press respective rack gear 7A-7F to respective magnet rings 2A-2F. When a color cathode ray tube 1 is positioned at a specified position in this device, rack 71 parts of rack gears 7A-7F are pressed to the magnet rings 2A-2F by the fitting metal fixtures 11A-11F energized upward by the springs 12 via a guide block and gear case. When each motor is normally or reversely rotated by a quantity of two to three teeth of rack 71, each rack gear is horizontally moved, each magnet ring is normally or reversely rotated by the rack 11 and engagement between the rack 71 and each magnet ring is automatically completed.

27. 发明专利

JPH06231691A CATHODE ELECTRODE INSPECTION METHOD FOR COLOR CATHODE RAY TUBE 失效
公开(公告)号：JPH06231691A
公开(公告)日：1994-08-19
申请号：JP1989093
申请日：1993-02-08
申请人： HITACHI LTD
发明人： KARASAWA TAKUMI
IPC分类号： H01J9/42 , H01J9/44
摘要： PURPOSE:To shorten inspection time by generating pulses which allow each switch opening/closing each red, each green and each blue cathode to be opened/closed in order periodically, and concurrently outputting pulses to a deflection coil in such a way that electron beams are deflected while being synchronized with the change-over of each switch. CONSTITUTION:Specified voltage from a positive electrode power supply 3 and a second grid power supply 5 is applied to a color cathode ray tube 1, so that a timing pulse generator 6 is operated. Pulses P21, P31, P41, P22, P32 and P 42,... are generated in order at the periods P11 through P13 of a clock pulse P1. A switch S1 is closed by the pulse P21 first, a red projected image is obtained by a red cathode PK. Next, a switch S2 is closed by the pulse P31, a green projected image is obtained by a green cathode GK, and a switch S3 is then closed by the pulse P41, a blue projected image is then obtained by a blue cathode BK. Similarly, the red, green and blue projected images are obtained in order by the pulses P22, P32 and P42. When the pulses P21, P31 and P41 are generated, the red, green and blue images appear at a position deflected from the center, at the center position and at a position deflected opposite to the red projected image respectively.

28. 发明专利

JPH0483566A WASHING MACHINE DUE TO ORGANIC SOLVENT 失效
公开(公告)号：JPH0483566A
公开(公告)日：1992-03-17
申请号：JP19790190
申请日：1990-07-27
申请人： HITACHI LTD
发明人： TANI HIROYUKI , KARASAWA TAKUMI , WATANABE KATSUYOSHI
IPC分类号： B08B3/08 , C23G5/04
摘要： PURPOSE:To enhance the life of an org. solvent, to reduce washing cost and to obtain the uniformity of washing by mounting a washing tank and an atomizing apparatus finely pulverizing the org. solvent to send the same into the washing tank. CONSTITUTION:The ultrasonic wave generated by an ultrasonic vibrator 5 is magnified in amplitude by an amplitude magnifying horn 6. When a solvent is supplied to the end surface of the amplitude magnifying horn 6 by a solvent supply pipe 7, the solvent becomes minute particles to be scattered. The atomized minute solvent particles are sent into a washing tank 11 by the air sent from an air guide chamber 4 and the interior of the washing tank 11 becomes a minute particle atmosphere. The atmosphere becomes a solvent supersaturated state and the minute solvent particles are bonded to and condensed on the surface of the object to be washed suspended in the washing tank 11 to degrease and wash the object to be washed. The object to be washed becomes a nucleus within the atmosphere of a supersaturated state and flocculation action continues so far as the object to be washed is present in the washing tank and minute particles are suspended without falling to be turned to the rear of the object to be washed. The air in the washing tank 11 is circulated through an air taking-in line 14, a blow pump 13 and the air guide chamber 4 to suppress the issue of the solvent to the outside.

29. 发明专利

JPH03176941A PURITY MEASURING DEVICE FOR COLOR CATHODE-RAY TUBE 失效
公开(公告)号：JPH03176941A
公开(公告)日：1991-07-31
申请号：JP31330889
申请日：1989-12-04
申请人： HITACHI LTD
发明人： KARASAWA TAKUMI , ISHIKAWA TAKAAKI , NISHIYAMA EIICHI
IPC分类号： H01J9/44 , H04N17/04
摘要： PURPOSE:To automatically measure a purity drift quantity with an inexpensive device by providing photoelectric transfer elements with color selecting filters, averaging circuits, a deflecting power source, a displacing power source, and a processing device controlling them and calculating the purity drift quantity. CONSTITUTION:The saw-tooth wave current from a deflecting power source 9 is fed to a deflection yoke 2 by the control signal 8a from a processing device 8 to scan an electron beam. The outputs of photoelectric transfer elements 5R-5B are the maximum with no purity drift, end the outputs are decreased as the drift is increased. If the response speed of the elements 5R-5B is fast, an error is generated for the judgment by the measurement timing, thus averaging circuits 7R-7B are provided, the input signal is held during the time to cross phosphors, and a purity drift quantity can be determined by comparing the output for the maximum value drift of the lateral circuit line with the reference signal level for the drift held by the device 8.

30. 发明专利

JPH0250580B2 失效
公开(公告)号：JPH0250580B2
公开(公告)日：1990-11-02
申请号：JP18788881
申请日：1981-11-25
申请人： HITACHI LTD
发明人： KARASAWA TAKUMI , YOKOSANAI TERUO
IPC分类号： H01J9/42

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