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1. 发明专利

JP2004017175A Buffer unit, grinding machine, buffering method, and grinding method 有权
公开(公告)号：JP2004017175A
公开(公告)日：2004-01-22
申请号：JP2002172009
申请日：2002-06-12
申请人： Advantest Corp , 株式会社アドバンテスト
发明人： FUJINO MASAO , WATABE TAKASHI
IPC分类号： B24B47/14 , B24B11/02 , F16F15/02
摘要： PROBLEM TO BE SOLVED: To grind a workpiece with high accuracy and finish the workpieces in a sphere with a high sphericalness provide by preventing the location of an upper grinder from horizontally deviating due to a force accompanying rotation of a lower grinder.
SOLUTION: The grinding machine for grinding the workpieces interposed between the upper and lower grinders includes a recess which is fixed to the upper grinder and has an opening at an upper portion thereof, an inserted member which has at least part thereof inserted into the recess, a lower-layer fluid filling part of the recess, and a filler floating on the lower-layer fluid to fill a gap between a side surface of the inserted member and an inner wall surface of the recess.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2001292013A MANUFACTURING METHOD OF RESONATOR 失效
公开(公告)号：JP2001292013A
公开(公告)日：2001-10-19
申请号：JP2000102464
申请日：2000-04-04
申请人： ADVANTEST CORP
发明人： ABE SACHIKAZU , WATABE TAKASHI
IPC分类号： H01P7/00 , H01P1/218
摘要： PROBLEM TO BE SOLVED: To provide a resonator that can simply be assembled to enhance the productivity. SOLUTION: A loop forming jig 31 is inserted to a support hole 24 of a support jig 15 and supported thereby, a loop raw material is set along a circumferential face of the loop forming jig 31 to form a coupling loop 18, the coupling loop 18 is fixed to an electrode at the forming position, after the coupling loop is fixed, the loop forming jig 31 is removed, and a support rod 16 supporting a YIG ball (single crystal ball of a ferrimagnetic substance) 17 is inserted through the support hole 24 and supported thereat. Only through the position adjustment in the forward/backward direction (axial direction of the support rod 16), the YIG ball 17 can simply be placed in the center of the coupling loop 18.

3. 发明专利

JP2001021595A METHOD AND DEVICE FOR DETECTING FREQUENCY ERROR 失效
公开(公告)号：JP2001021595A
公开(公告)日：2001-01-26
申请号：JP19355799
申请日：1999-07-07
申请人： ADVANTEST CORP
发明人： WATABE TAKASHI , UKITA JUNICHI
IPC分类号： G01R23/06 , G01R23/15 , H03J7/02
摘要： PROBLEM TO BE SOLVED: To make detectable frequency errors over a wide band. SOLUTION: The characteristic of a YIG tuned filter 10 is controlled by a frequency control means 18 according to the frequency of an input signal so that it is approximately linearly attenuated near the frequency (f) of the input signal. When the frequency of the input signal is varied because of the attenuation characteristic of the YIG tuned filter 10, this frequency variation is converted into variation of the amplitude of an output signal. A signal output from a filter 10 is input to a wave detector 12 to detect its amplitude vibration. A signal output from the wave detector 12 is input to a differential amplifier 14. The differential amplifier 14 outputs the detection result that is the difference between the signal output from the wave detector 12 and a predetermined offset voltage.

4. 发明专利

JP2000053485A SINGLE CRYSTAL PRODUCTION EQUIPMENT 失效
公开(公告)号：JP2000053485A
公开(公告)日：2000-02-22
申请号：JP22389598
申请日：1998-08-07
申请人： ADVANTEST CORP
发明人： ABE SACHIKAZU , WATABE TAKASHI , HORI HISAO
IPC分类号： C30B13/14 , H01L21/208
摘要： PROBLEM TO BE SOLVED: To obtain homogenous, high quality and large single crystal. SOLUTION: In this equipment for producing a single crystal with a floating zone melting method (FZ method) or transfer solvent floating zone melting method (TSFZ method), a transparent partition wall 21 for a single crystal growth area is provided with a heater(s) 31 for heating the partition wall 21. Thus, clouding of the transparent partition wall 21 due to solidification of evaporated gas can be prevented from being caused to solve conventional problems such that nonuniformity of single crystal properties and limitation with respect to the single crystal growth rate or growth are caused due to the clouding of the transparent partition wall 21.

5. 发明专利

JPH1192267A PRODUCTION OF SINGLE CRYSTAL AND ITS PRODUCING APPARATUS 失效
公开(公告)号：JPH1192267A
公开(公告)日：1999-04-06
申请号：JP25483497
申请日：1997-09-19
申请人： ADVANTEST CORP
发明人： WATABE TAKASHI , ABE SACHIKAZU
IPC分类号： C30B7/02
摘要： PROBLEM TO BE SOLVED: To provide a single crystal producing method using solvent, capable of depositing and growing homogeneous single crystal from initial stage of crystal growth to the final stage by carrying out control so that growing rate of single crystal becomes constant and provide a producing apparatus using the method. SOLUTION: This single crystal-producing apparatus by solvent evaporation method is equipped with a growing tank 50 for depositing and growing single crystal, a discharge means 30 for discharging solvent vapor 26 of the growing tank 50, a solution tank 54 for evaporating the solvent of the solution, a heating means 90 for heating the solution tank 54, a control valve 60 for carrying out control feeding the solvent vapor of the solution tank 54 to the growing tank 50, a pressure detecting means 70 for detecting vapor pressure in the growing tank 50 and outputting pressure signal, a controller 80 for receiving the pressure signal of the pressure detecting means and controlling the above control valve so that solvent vapor pressure in the growing tank 50 becomes constant and a thermoregulated bath 40 for controlling the growing tank at definite temperature.

6. 发明专利

JP2011249182A Switching device, test device, switching method, and manufacturing method 有权
标题翻译：切换装置，测试装置，切换方法和制造方法
公开(公告)号：JP2011249182A
公开(公告)日：2011-12-08
申请号：JP2010122334
申请日：2010-05-28
申请人： Advantest Corp , 株式会社アドバンテスト
发明人： SATO YOSHIHIRO , ABE SACHIKAZU , WATABE TAKASHI
IPC分类号： H01H1/04 , H01H11/04 , H01H37/52 , H01H55/00 , H01H57/00 , H01H59/00
摘要： PROBLEM TO BE SOLVED: To provide a switch having a contact at which pseudo-attachment does not occur even though the number of on/off operation times is increased.SOLUTION: A switching device comprises: a first contact; and a second contact on which a protection conductive layer is provided on a surface brought into contact with the first contact. The switching device comprises: a movable part for bringing the first contact into contact with the second contact or separating the first contact from the second contact; and a metal supply part for supplementing protection metal to the protection conducting layer. The switching device, a test device, a switching method, and a manufacturing method are provided. The second contact has a contact layer including metal for a contact, and the metal supply part deposits the protection metal from a side opposite from the first contact to the first contact side through the contact layer.
摘要翻译：要解决的问题：为了提供具有接触的开关，即使开/关操作次数增加，也不会发生伪附着。解决方案：开关装置包括：第一触点; 以及第二触点，在与第一触点接触的表面上设置有保护导电层。开关装置包括：用于使第一触点与第二触点接触或将第一触点与第二触点分开的可移动部件; 以及用于将保护金属补充到保护导电层的金属供给部件。提供了开关装置，测试装置，开关方法和制造方法。第二触点具有包括用于接触的金属的接触层，并且金属供给部分通过接触层将保护金属从与第一接触相反的一侧沉积到第一接触侧。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2003145417A PLANE SANDING DEVICE 审中-公开
公开(公告)号：JP2003145417A
公开(公告)日：2003-05-20
申请号：JP2001348317
申请日：2001-11-14
申请人： ADVANTEST CORP
发明人： HORI HISAO , WATABE TAKASHI
IPC分类号： B24B37/02
摘要： PROBLEM TO BE SOLVED: To prevent an adhesion of a carrier and a lower sander due to the surface tension of the abrasive liquid. SOLUTION: In this plane sanding device, a guide ring mounted on the lower sander is held by an arm freely to be rotated on the lower sander, and a plate- like carrier is housed in the guide ring and placed on the lower sander. An upper sander is laminated on a work arranged in a holding hole of the guide ring, and the guide ring and the carrier are rotated on the lower sander by a circumferential speed difference working with the rotation of the lower sander to grind the work. A bottom surface 21a of the carrier 21 is provided with a groove (a recess) for reducing a contact area with the lower sander to reduce the adhesion strength.

8. 发明专利

JPH11298076A LIGHT PULSE COMPRESSING DEVICE AND METHOD THEREFOR, SIGNAL TRANSMITTING DEVICE AND METHOD THEREFOR 失效
公开(公告)号：JPH11298076A
公开(公告)日：1999-10-29
申请号：JP9924598
申请日：1998-04-10
申请人： ADVANTEST CORP
发明人： MASUDA SHIN , WATABE TAKASHI , SAKURAI TAKAO
IPC分类号： H01S3/121 , H01S3/125
摘要： PROBLEM TO BE SOLVED: To allow a light pulse which is pulse compressed and is not spatially dispersed output in a desired position with a small-sized structure by which the number of dispersed devices is not increased. SOLUTION: Light pulse is pulse-compressed by first and second dispersing devices 211 and 212 and reflected by a light reflecting device 411 for feedback. Light pulse output from the first dispersing device 211 is separated by a light beam separating device 412. The pulse-compressed light pulse in the first and second dispersing device 211 and 212 are dispersed spatially also. Its optical axis is transferred from an input light path. If the light pulse is reflected by the light beam reflecting device 311 and is brought back, the spatial dispersion of light pulse is released and the light intensity distribution becomes identical to that of the initial state and the optical path coincides with the input optical path. Since the light pulse is separated from the input light source, a light pulse which is pulse-compressed but is not dispersed spatially made to exit to a desired position.

9. 发明专利

JPH1190811A BALL MACHINING DEVICE 失效
公开(公告)号：JPH1190811A
公开(公告)日：1999-04-06
申请号：JP25070597
申请日：1997-09-16
申请人： ADVANTEST CORP
发明人： WATABE TAKASHI , TERADA YOSHIAKI
IPC分类号： B24B37/02
摘要： PROBLEM TO BE SOLVED: To produce a large quantity of balls which are hardly flawed or damaged and of a high sphericity. SOLUTION: With an upper polishing plate 11 rotated while maintaining it horizontally at a prescribed height, and with workpieces 15 placed in a circular V-groove provided on the upper face of a lower polishing plate 13, air pressure is introduced from a compressor 38 into a cylinder 33 so that a piston 34 is raised, pushing the lower polishing plate 13 toward the upper polishing plate 11, and this pressing force is set and retained by a controller 42. Vibration and shocks in the vertical direction are absorbed by a buffer tank 37.

10. 发明专利

JPH10163461A SEMICONDUCTOR SWITCH 失效
公开(公告)号：JPH10163461A
公开(公告)日：1998-06-19
申请号：JP31948896
申请日：1996-11-29
申请人： ADVANTEST CORP
发明人： KONNO TAKESHI , WATABE TAKASHI
IPC分类号： H01L27/14 , H01P1/15
摘要： PROBLEM TO BE SOLVED: To obtain sufficient off-isolation when a high frequency signal like microwave is switched, by forming a predetermined capacitance between strip conductors and ground planar conductors. SOLUTION: In a semiconductor switch, strip conductors 2a, 2b isolated from each other by a fine gap 5, and coplanar lines composed of right and left ground planar conductors 3a, 3b are formed, and the whole surface is coated from above with a dielectric layer 4. Thereby a capacitor C is formed by the dielectric layer 4, between the right and left ground planar conductors 3a, 3b as earth and the strip conductors 2a, 2b as transmission lines. In such a semiconductor switch, an input signal when the switch is not irradiated with a light flows to ground through the conductors 3a, 3b. Thereby sufficient off-isolation can be obtained, and leakage of the input signal at the non-irradiation can be excluded.

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