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1. 发明专利

DE4102079A1 未知
公开(公告)号：DE4102079A1
公开(公告)日：1991-08-01
申请号：DE4102079
申请日：1991-01-24
申请人： HITACHI LTD
发明人： KAWAKUBO YUKIO , KUBOTA YOSHIYUKI , SASAKI KOUJI , MIKI ATSUSHI , OGURA SATOSHI
IPC分类号： H01S3/038 , H01S3/07 , H01S3/0971

2. 发明专利

DE3789248T2 未知
公开(公告)号：DE3789248T2
公开(公告)日：1994-09-01
申请号：DE3789248
申请日：1987-04-03
申请人： HITACHI LTD
发明人： KOIKE MASAHIRO , TAKAHASHI FUMINOBU , OGURA SATOSHI , YAMADA IZUMI
IPC分类号： G01S7/04 , A61B6/03 , A61B8/00 , G01B11/00 , G01B17/00 , G01B17/06 , G01N29/06 , G01S15/89 , G06T5/00 , H04N7/18 , G06F15/68
摘要： Disclosed is a picture display apparatus connected to a low resolution ultrasonic inspector so as to display a picture with high resolution. In the apparatus, an approximate spectrum of a theoretical spectrum representing an object having a known shape as a reference and a spectrum obtained through measurement of the known-shaped object are subject to Fourier transformation so that a transfer function of a measurement device is calculated from the ratio between the respective values obtained through the two operations of Fourier transformation, whereby an unknown shape of an object is displayed on the basis of the transfer function and Fourier transformation values of a measured spectrum of the object having the unknown shape. A modified Gaussian distribution obtained by combining two Gaussian distributions, in which the transformation values of the spatial spectrum of the known shape are reduced in a high frequency range and in which oscillations are less spread in the high frequency range, is employed as the approximate spectrum of the theoretical spectrum representing the known-shaped object, so that the high frequency components of the spatial spectrum of the unknown shape can be reduced and therefore a clear picture can be displayed with high resoltuion.

3. 发明专利

DE3789248D1 未知
公开(公告)号：DE3789248D1
公开(公告)日：1994-04-14
申请号：DE3789248
申请日：1987-04-03
申请人： HITACHI LTD
发明人： KOIKE MASAHIRO , TAKAHASHI FUMINOBU , OGURA SATOSHI , YAMADA IZUMI
IPC分类号： G01S7/04 , A61B6/03 , A61B8/00 , G01B11/00 , G01B17/00 , G01B17/06 , G01N29/06 , G01S15/89 , G06T5/00 , H04N7/18 , G06F15/68
摘要： Disclosed is a picture display apparatus connected to a low resolution ultrasonic inspector so as to display a picture with high resolution. In the apparatus, an approximate spectrum of a theoretical spectrum representing an object having a known shape as a reference and a spectrum obtained through measurement of the known-shaped object are subject to Fourier transformation so that a transfer function of a measurement device is calculated from the ratio between the respective values obtained through the two operations of Fourier transformation, whereby an unknown shape of an object is displayed on the basis of the transfer function and Fourier transformation values of a measured spectrum of the object having the unknown shape. A modified Gaussian distribution obtained by combining two Gaussian distributions, in which the transformation values of the spatial spectrum of the known shape are reduced in a high frequency range and in which oscillations are less spread in the high frequency range, is employed as the approximate spectrum of the theoretical spectrum representing the known-shaped object, so that the high frequency components of the spatial spectrum of the unknown shape can be reduced and therefore a clear picture can be displayed with high resoltuion.

4. 发明专利

DE3483752D1 未知
公开(公告)号：DE3483752D1
公开(公告)日：1991-01-31
申请号：DE3483752
申请日：1984-05-10
申请人： HITACHI LTD
发明人： OGURA SATOSHI , SUGIYAMA SAKAE , KOGA KAZUNORI
IPC分类号： G01N29/04 , G01N29/07 , G01N29/38 , G01N29/48 , G01S7/523 , G01N29/10
摘要： Disclosed is, in an ultrasonic flaw detecting technique in which reflection echoes (B1 - B4) of ultrasonic waves (A1 - A4) transmitted from a plurality of vibrator elements (3A - 3D) are received, and a composite signal obtained by composing the reception signals is supplied to a composite signal reception processing circuit, a method and an apparatus therefor in which the existence of the composite signal is detected at a first time point at which the composite signal based on the reflection echoes from an inspection target (F) in a main lobe can be detected and at a second and a third time point which are in advance and in the behind of the first time point respectively and at which the composite signal based on the reflection echoes from an inspection target (F) in the main lobe can not be detected, so that when the existence of the composite signal is detected only at the first time point, it is determined that the composite signal is that based on the reflection echoes from the inspection target (F).

5. 发明专利

DE3573476D1 SECTIONAL RADIOGRAPHY DISPLAY METHOD AND APPARATUS 未知
公开(公告)号：DE3573476D1
公开(公告)日：1989-11-09
申请号：DE3573476
申请日：1985-12-19
申请人： HITACHI LTD
发明人： OGURA SATOSHI , TAKAHASHI FUMINOBU , KANAMORI TAKAHIRO , KOGA KAZUNORI , KOIKE MASAHIRO , ITOH SHINICHI
IPC分类号： A61B6/03 , G01N23/04

6. 发明专利

DE3572032D1 TWO-PROBE ULTRASONIC FLAW DETECTION APPARATUS 未知
公开(公告)号：DE3572032D1
公开(公告)日：1989-09-07
申请号：DE3572032
申请日：1985-03-11
申请人： HITACHI LTD
发明人： KOIKE MASAHIRO , TAKAHASHI FUMINOBU , OGURA SATOSHI , KOGA KAZUNORI
IPC分类号： G01N29/04 , G01N29/11 , G01N29/26
摘要： A maximum reception intensity position determination means (15) calculates or reads out the position at which the intensity of ultrasonic wave reflected from the reflection surface in an object (1) being inspected is maximum. A reception probe position-controlling means (12, 13) controls the reception probe (3) to the position of the maximum reception intensity by the signal from the maximum reception intensity position determination means (15). .

7. 发明专利

JPH11354508A ION BEAM MACHINING DEVICE 失效
公开(公告)号：JPH11354508A
公开(公告)日：1999-12-24
申请号：JP16027198
申请日：1998-06-09
申请人： HITACHI LTD
发明人： OGURA SATOSHI , OISHI SEITARO , HASHIMOTO ISAO , ICHIMURA SATOSHI
IPC分类号： H05H1/46 , B23K15/00 , C23F4/00 , H01J27/18 , H01J37/08 , H01L21/302 , H01L21/3065
摘要： PROBLEM TO BE SOLVED: To uniformly neutralize ion beams with large currents and a large aperture, and to irradiate an object to be worked with the ion beams whose beam dispersion is small. SOLUTION: A microwave neutralizer 14 is arranged in the neighborhood of an accelerating electrode 6 and a decelerating electrode 9 in a working chamber 13 without being turned into a vacuum container, and a multi-ring a cusp magnetic field is formed on the inner peripheral side of an annular electrode 47. When microwaves are introduced through waveguides 24 and 21, the microwaves are absorbed at the position of an electronic cyclotron resonance condition, and a ring-shaped uniform plasma for neutralization is generated on the inner peripheral side of the annular electrode 47. At that time, the annular electrode 47 is maintained as a negative potential to the working chamber 13, and ions are collected from the plasma for neutralization on the annular electrode 47, and electronics in the same quantity as that of the collected ions are supplied to an ion beam 36 so that the neutralization of ion beams 36 can be operated.

8. 发明专利

JPH09215243A DYNAMO-ELECTRIC MACHINE 失效
公开(公告)号：JPH09215243A
公开(公告)日：1997-08-15
申请号：JP1361796
申请日：1996-01-30
申请人： HITACHI LTD
发明人： AMAGI SHIGEO , HARAGUCHI YOSHIHIRO , HIGASHIMURA YUTAKA , OGURA SATOSHI , SUGAWARA TOSHIO
IPC分类号： H02K3/24 , H02K3/34 , H02K3/38
摘要： PROBLEM TO BE SOLVED: To reduce an increase in partial temperature caused by a variation in flow rate of cooling air between coils at a coil end part without a decrease in rigidity of the coil end part. SOLUTION: An insulating molded part has a ground insulating layer made of insulating material for a stator coil. The insulating molded part is separated into each insulating parts with a projected part as a spacer for ensuring a distance between the stator coils when the stator coil is previously incorporated on a slot 5 in a stator core 4. The insulating molded part is mounted previously on a copper strand covered with a strand insulating layer. Then, the stator core that is impregnated and hardened with varnish is assembled thereto.

9. 发明专利

JPH0690047A DISCHARGE PUMPING EXCIMER LASER OSCILLATOR 失效
公开(公告)号：JPH0690047A
公开(公告)日：1994-03-29
申请号：JP23982792
申请日：1992-09-08
申请人： HITACHI LTD
发明人： SASAKI HIROHARU , KUBOTA YOSHIMASA , OGURA SATOSHI , KAWAKUBO YUKIO , TAKEMORI SEI
IPC分类号： H01S3/0977
摘要： PURPOSE:To provide an excimer laser producing stabilized pulsating laser output at high efficiency. CONSTITUTION:The discharge pumping excimer laser comprises a main discharge circuit section A, a preionizing circuit section B provided with a saturable reactor 13, a pulse oscillator 3 for switching a switching element 5 at the main discharge circuit section A, a pulse oscillator 4 for switching a switching element 17 at the preionizing circuit section B, and a controller 2 for taking in the charging voltage of a peaking capacitor 8 for main discharge through a charging voltage measuring element 18 and delivering switching commands to the pulse oscillators 3, 4.

10. 发明专利

JPH0661567A GAS CONTROLLED STABILIZED OUTPUT GAS LASER DEVICE 失效
公开(公告)号：JPH0661567A
公开(公告)日：1994-03-04
申请号：JP21284092
申请日：1992-08-10
申请人： HITACHI LTD
发明人： OGURA SATOSHI , SASAKI HIROHARU , KUBOTA YOSHIMASA , KAWAKUBO YUKIO
IPC分类号： H01S3/036 , H01S3/134
摘要： PURPOSE:To stabilize gas laser output without using a special power supply control system by changing laser gas density through laser gas pressure adjustment and by adjusting gain through increase and decrease thereof. CONSTITUTION:When laser beam 21' is detected by a laser power meter 23, detected output is sent to a laser output control device 31 through a laser output signal line 30 in accordance with an arrow 32. Output of a laser beam 21 is calculated by using sensitivity of the laser power meter 23 and laser beam distribution rate of a beam splitter 22, deflection to an objective value is obtained and an instruction for changing a volume of a variable volume gas chamber 4 is sent to a gas chamber volume control device 16 through a gas chamber volume control signal line 29. Therefore, output of the laser beam 21 can be stabilized by performing gain control of laser gas 5 which is laser medium through density adjustment for changing a pressure of the laser gas 5 in the inside of a laser tube 1 by providing physical function as indicated by arrow 33 to the variable volume gas chamber 4 in accordance with an instruction to change a volume of the variable volume gas chamber 4.

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