专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2660955B2 失效
公开(公告)号：JP2660955B2
公开(公告)日：1997-10-08
申请号：JP29969393
申请日：1993-11-30
申请人： SAKATA DENKI KK , MAEDA KENSETSU KOGYO KK
发明人： SAKATA FUMIO , YAMAZAKI NOBUYOSHI , HATANO MASAICHIRO , ARAI HITOSHI , ARAI TAKESHI , FURUKAWA MASANORI
IPC分类号： G01M3/02 , G01M3/16

2. 发明专利

JPH0988471A PHOTOGRAPHIC DEVICE OF BORE HOLE 失效
公开(公告)号：JPH0988471A
公开(公告)日：1997-03-31
申请号：JP24645095
申请日：1995-09-25
申请人： ELECTRIC POWER DEV CO , SAKATA DENKI KK
发明人： TSUDA NOBUHIRO , SUGIYAMA RYOICHI , SAKATA FUMIO , ENDO SHINICHI
IPC分类号： E21B49/00 , H04N5/222 , H04N5/225
摘要： PROBLEM TO BE SOLVED: To make it possible to obtain a clear hole wall picture. SOLUTION: A cylindrical glass 12 having a reversed conical mirror 13 on the lower end thereof is provided to the lower end of a sonde pressure vessel 11 to make it possible to lead light from the lower circumference of the cylindrical glass into a photographic camera 14 through the reversed conical mirror 13. A transparent cylindrical light leading path member 18 is provided between the exterior wall of the cylindrical glass 12 and the interior wall of the sonde pressure vessel 11. A plurality of illumination electric lamps 15 with light shielding hoods are arranged to the upper end of the light leading path member 18.

3. 发明专利

JPH0953958A GROUND DISPLACEMENT MEASURING SYSTEM 失效
公开(公告)号：JPH0953958A
公开(公告)日：1997-02-25
申请号：JP20954595
申请日：1995-08-17
申请人： RADIC KK , SAKATA DENKI KK
发明人： SAKATA FUMIO
IPC分类号： G01C9/04 , G01C9/06 , G01C13/00 , G01D9/00 , G01D21/00 , G08C19/00
摘要： PROBLEM TO BE SOLVED: To obtain a ground displacement measuring system suitable for removing the noise components and capable of reducing the power consumption. SOLUTION: In a signal transmitting section 10, power is fed to each part thereof at a time preset by a timer circuit 14 and a detection signal of clinometer 11 in the form of a magnetic signal is transmitted from the bottom of the water. At a signal receiving section 20, the magnetic signal received by a receiving coil 21 is converted through a conversion circuit 23 and recorded on a recorder 24. The content of record is then collected and reproduced before being demodulated to produce the detection signal from the clinometer 11.

4. 发明专利

JPH07146907A ANALOG ARITHMETIC CIRCUIT FOR PARTIALLY DIFFERENTIAL EQUATION 失效
公开(公告)号：JPH07146907A
公开(公告)日：1995-06-06
申请号：JP29538493
申请日：1993-11-25
申请人： SAKATA DENKI KK , REIDEITSUKU KK
发明人： SAKATA FUMIO
IPC分类号： G06G7/40
摘要： PURPOSE:To dynamically analyze the phenomenon which is described by the partially differential equation by using a resistance network. CONSTITUTION:This analog arithmetic circuit for the partially differential equation as to a partially differential equation of 2nd order is equipped with a Poisson circuit 11 which is connected to each intersection through a resistance R and a subtracting circuit 12 which subtracts a specific voltage from the voltage at the intersection and applies to the other end of the resistance connected to the intersection and a peripheral voltage is applied to the periphery of the resistance network. Further, this is an analog arithmetic circuit for a partially differential equation of 4th order constituted by adding a Laplace circuit, connecting the respective intersections of both the networks 11, and adding an arithmetic circuit. Consequently, the same result as a solution found by a differential method as one of numeric analyzing methods is obtained and the analysis can be taken extremely easily and fast.

5. 发明专利

JPH07103708A ANGLE DETECTOR AND ANGLE DETECTION SYSTEM 失效
公开(公告)号：JPH07103708A
公开(公告)日：1995-04-18
申请号：JP24812993
申请日：1993-10-04
申请人： SAKATA DENKI KK , REIDEITSUKU KK
发明人： SAKATA FUMIO , YAMAZAKI NOBUYOSHI
IPC分类号： G01B7/30 , G01B7/00 , G01D5/18
摘要： PURPOSE:To provide an angle detector and an angle detection system which can obtain a stable accurate conversion output pertaining to an angle of rotation. CONSTITUTION:Alternating current in a plurality of different phases is applied to a plurality of sets of coils 3A and 3B facing one another to form a rotary magnetic field and a rotor 6 containing a magnetosensitive element 4 and a detection coil 5 wound in the perimeter thereof is rotated in the rotary magnetic field to gain a detection pulse. A phase shift of the detection pulse is detected from a reference pulse synchronizing a first phase output of the alternating current in a plurality of phases to detect an angle of rotation of the rotor 6 from the phase shift.

6. 发明专利

JPH06292204A SHADE PROCESSING SYSTEM FOR BORE HOLE TELEVISION CAMERA EQUIPMENT 失效
公开(公告)号：JPH06292204A
公开(公告)日：1994-10-18
申请号：JP7787093
申请日：1993-04-05
申请人： ELECTRIC POWER DEV CO , SAKATA DENKI KK
发明人： IZUTSU YASUO , SAEKI TAKASHI , SAKATA FUMIO , ENDO SHINICHI
IPC分类号： H04N7/18
摘要： PURPOSE:To obtain a video processing system in which a spread picture and a spread columnar picture of a cone video image are observed in real time. CONSTITUTION:The television camera equipment is the bore hole television camera equipment in which a camera sonde provided with a cone mirror and a television camera is inserted to a bore hole and the entire circumference of a wall face is observed and recorded through a cylindrical glass window, which uses a 1st frame memory 2 storing tentatively a conical video image P and a coordinate conversion circuit 3 including a ROM storing sine and cosine values in the unit of angles and a counter storing a radius L in the unit of a length and reads sequentially a stored conical video image from an internal circumference or an outer circumference along its circumference in spiral (refer to caption P in figure) and converts the read video image into an spread video image Q in orthogonal coordinates and the image is displayed on a display system 6 in real time. A divided spread video image and a spread columnar picture is displayed.

7. 发明专利

JPH05142359A UNDERGROUND DATA COLLECTING SYSTEM BY STEEL ROD 失效
公开(公告)号：JPH05142359A
公开(公告)日：1993-06-08
申请号：JP30791091
申请日：1991-11-22
申请人： REIDEITSUKU KK , SAKATA DENKI KK
发明人： SAKATA FUMIO , YAMAZAKI NOBUYOSHI
IPC分类号： G01V3/28 , E21B47/13 , G01V3/34 , H04B5/00 , H04B13/00
摘要： PURPOSE:To extend the signal reaching distance of a unit rod 1 as long as possible. CONSTITUTION:In an underground data collecting system in which a sensor (temperature sensor) 2, a transmission circuit 7, and a transmission coil 8 are provided near the tip of a steel rod (boring rod) 1, while a detecting coil 9 and a receiving circuit 12 are provided at the ground surface side of the steel rod 1, so as to collect the underground data on the ground, a material 14 of a high magnetic permeability is provided surrounding between the transmission coil 8 and the steel rod 1, or at least the part of the steel rod 1 where the detecting coil 9 is provided is composed of a material of a high magnetic permeability. By increasing the maximum signal reaching distance, the number of steps of relay devices can be reduced, and the reliability and the economy can be improved.

8. 发明专利

JPH10332522A DETECTION SYSTEM FOR WATER LEAK OCCURRENCE POSITION 失效
公开(公告)号：JPH10332522A
公开(公告)日：1998-12-18
申请号：JP14789197
申请日：1997-06-05
申请人： SAKATA DENKI KK , MAEDA CONSTRUCTION
发明人： ENDO SHINICHI , YAMAZAKI NOBUYOSHI , SAKATA FUMIO , ARAI TAKESHI
IPC分类号： G01M3/04 , G01M3/16
摘要： PROBLEM TO BE SOLVED: To provide the water leak occurrence position detection system which can precisely detect respective breakage places even if a water shield film is broken at those places. SOLUTION: One linear electrode on one side of the water shield film 10 is selected and connected to one side of an AC power source 11 and another linear electrode is selected on the other side, but other linear electrodes except the linear electrode on one side are all connected to the other side of the AC power source 11. Currents flows between the one linear electrode connected to one side of the AC power source 11 and all other linear electrodes, but a current detector 13 measures the current of only one linear electrode selected on the other side. Consequently, the current is measured while limited to nearby the intersection of the one linear electrode on one side connected to the one side of the AC power source 11 and the one linear electrode on the other side where the current measurement is taken.

9. 发明专利

JPH0886764A METHOD AND DEVICE FOR MEASURING WATER PERMEABILITY OF GROUND 失效
公开(公告)号：JPH0886764A
公开(公告)日：1996-04-02
申请号：JP22153094
申请日：1994-09-16
申请人： SAKATA DENKI KK , MAEDA CONSTRUCTION
发明人： SAKATA FUMIO , YAMAZAKI NOBUYOSHI , ARAI HITOSHI , ARAI TAKESHI
IPC分类号： E02D1/00 , G01N27/04 , G01N33/24 , G01V3/08
摘要： PURPOSE: To accurately measure the depth of any highly permeable part of a bedrock which may become a course of water. CONSTITUTION: First and second boreholes 11, 12 are provided inwards from the surface of the ground, and an alternating current is supplied between a first current-carrying electrode 13 inserted in the first borehole and a second current-carrying electrode 16 inserted in the second borehole. Third and fourth electrodes 14, 15 for measuring potential differences are provided, respectively, in positions above and below the first electrode inserted in the first borehole and are combined to provide a combination electrode. As the depths of the electrodes are varied, a potential difference is measured from the voltages detected from the third and forth electrodes, and changes in water permeability of the ground are measured from changes in polarity of the potential difference.

10. 发明专利

JPH0877282A ANALOG ARITHMETIC CIRCUIT 失效
公开(公告)号：JPH0877282A
公开(公告)日：1996-03-22
申请号：JP21567794
申请日：1994-09-09
申请人： RADIC KK , SAKATA DENKI KK
发明人： SAKATA FUMIO , ENDO SHINICHI
IPC分类号： G06G7/12 , H03M3/02
摘要： PURPOSE: To provide the inexpensive, high-performance analog arithmetic circuit which does not require highly precise components. CONSTITUTION: This circuit consists of a 1st 1-bit D/A converter 11 which receives a DC voltage as the denominator of correction arithmetic, a subtracter 12 which receives the output of the 1-bit D/A converter 11 and a reference voltage and performs subtraction, an integrator 13 which receives and integrates the output of the subtracter 12, a comparator 14 which receives the output of the integrator 13 and decides the polarity, and a 2nd 1-bit D/A converter 15 which receives a DC voltage as the numerator of the correction arithmetic; and the output of the comparator 14 is used as a switching signal for the 1st and 2nd 1-bit D/A converters 11 and 15. The output of the 2nd 1-bit D/A converter 15 is used as a correction arithmetic output. Therefore, there is no place to be adjusted, so good precision and superior stability are obtained and neither special components nor severe selecting operation is required.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式