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

JPS62134600A ROTARY TYPE RADIATION SOURCE DEVICE 失效
公开(公告)号：JPS62134600A
公开(公告)日：1987-06-17
申请号：JP27491885
申请日：1985-12-09
申请人： HITACHI LTD , HITACHI KYOWA KOGYO KK , HITACHI SERVICE ENG
发明人： KONASE ATSUSHI , HOSHI HIROSHI , ARIMA SHOICHI , SUZUKI TOSHIO
IPC分类号： G21G4/04 , G21G4/06

2. 发明专利

JPS62134586A CENTER SHIELDING TYPE COLLIMATOR 失效
公开(公告)号：JPS62134586A
公开(公告)日：1987-06-17
申请号：JP27491785
申请日：1985-12-09
申请人： HITACHI LTD , HITACHI SERVICE ENG , HITACHI KYOWA KOGYO KK
发明人： HOSHI HIROSHI , KONASE ATSUSHI , SUZUKI TOSHIO , ARIMA SHOICHI
IPC分类号： G01T1/24 , G01T7/00
摘要： PURPOSE:To attain to enhance gamma-ray detection efficiency as compared with a conventional method, by introducing gamma-rays to be measured into the semiconductive crystal of a circumferential part of a coaxial type semiconductive detector shifted from the center part of said detector. CONSTITUTION:A collimator plug 2 is arranged in front of a coaxial type semiconductive detector 11 and the collimator plug part 9 provided above the central oblique line part 12 of the coaxial type semiconductive detector 11 is shielded and a collimating hole 10 is provided to the circumference of said plug part 9 in a concentric circular form. The diameter of the collimating hole 10 is larger than that of the central electrode 5 of the coaxial semiconductive detector 11 and, therefore, gamma-rays passing through the collimating hole 10 is not incident to the central part 12 of the coaxial semiconductive detector 11 but incident to a peripheral semiconductive part 4. Therefore, the detection efficiency of gamma-rays to be measured becomes high and, especially, the detection efficiency of high energy gamma-rays becomes high.

3. 发明专利

JPH01159470A U-SHAPE PACKING FOR BEARING OF HYDRAULIC TURBINE GUIDE VANE 失效
公开(公告)号：JPH01159470A
公开(公告)日：1989-06-22
申请号：JP31741387
申请日：1987-12-17
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： KOCHIYAMA NORIYUKI , YAMAGUCHI HIROSHI , WADA YUKIHIKO , KIMURA HIDEO , SUZUKI TOSHIO , NASU KOTA
IPC分类号： F03B11/06 , F03B11/00
摘要： PURPOSE:To improve durability against the rough surface of a sliding section caused by aged deterioration by making a U-shaped packing of nitride rubber, which seals pressure water passing through the outer circumferential surface of a guide vane shaft, and forming it in such a way that a gap in a triangular form between the guide vane shaft and a bearing may be eliminated. CONSTITUTION:A packing 1a with a cross section of U-shaped configuration is incorporated in a packing chamber formed by those such as a hydraulic turbine guide vane shaft 2, a lower cover 3 and a bearing 5 so that both leaks in the direction of the guide vane shaft 2 and leaks from a casing 6 to a runner 9 when the guide vane is fully closed, are sealed. The afore-said packing 1 is supported by an adapter 8 formed by a rubber ring so that an effect in preventing water from leaking from the casing 6 to the runner 7 is improved when the guide vane is fully closed. In this case, the packing 1a in U-shape is made of nitrile rubber so as to be concurrently formed in such a way that a gap in a triangular form formed between the guide vane shaft 2 and a bearing 5 may be eliminated. This constitution thereby improves durability against the rough surface of the sliding section of the guide vane shaft 2 caused by aging deterioration.

4. 发明专利

JPH0511796B2 失效
公开(公告)号：JPH0511796B2
公开(公告)日：1993-02-16
申请号：JP27491785
申请日：1985-12-09
申请人： HITACHI SEISAKUSHO KK , HITACHI ENJINIARINGU SAABISU KK , HITACHI KYOWA KOGYO KK
发明人： HOSHI HIROSHI , KONASE ATSUSHI , SUZUKI TOSHIO , ARIMA SHOICHI
IPC分类号： G01T1/24 , G01T7/00

5. 发明专利

JPH1142191A VACUUM CLEANER 失效
公开(公告)号：JPH1142191A
公开(公告)日：1999-02-16
申请号：JP19968097
申请日：1997-07-25
申请人： HITACHI LTD
发明人： TAKAMUNE YUICHIRO , SUZUKI TOSHIO , KAWAMATA MITSUHISA
IPC分类号： A47L9/28
摘要： PROBLEM TO BE SOLVED: To simplify the constitution to switch an ordinary operational action and an action except for ordinary operation by closing a power source in a condition where a switch to switch operation of an input control device is pushed down, and performing the action except for ordinary operation when a pushing-down condition passes by a prescribed time. SOLUTION: When a main body switch 7 is pushed down, a level signal convering means 21 outputs a level signal to a microcomputer 14, and the microcomputer 14 starts operation by its level signal, and judges operation mode switching or stopping. This main body switch 7 stops a vaccum cleaner every time when the switch is accepted in an ordinary using condition, and switches a strong mode, a medium mode and a weak mode of suction force in order, and repeats to return again to a stopping condition, but when a demonstration mode is started by the main body switch 7, the main body switch 7 is pushed down for a prescribed time or more at power source closing time. Therefore, a refuse quantity display of a small refuse quantity, a medium refuse quantity and a large refuse quantity can be periodically switched.

6. 发明专利

JPH09258839A ACTIVE FILTER DEVICE 失效
公开(公告)号：JPH09258839A
公开(公告)日：1997-10-03
申请号：JP7231896
申请日：1996-03-27
申请人： HITACHI LTD
发明人： SAKAI KEIJIRO , KUBO KENJI , NUMATA YUKI , SUZUKI TOSHIO
IPC分类号： H02J3/01 , G05F1/70 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To satisfy power source higher harmonic restriction, to reduce the loss of a PWM converter and to save energy in an active filter controller where the current of the PWM converter is controlled so as to cancel higher harmonic current at a load side. SOLUTION: The controller is provided with a means for detecting instantaneous harmonic current at the load side by a current detecting equipment 11a so as to adopt it as a higher harmonic compensating current command ic*, a means 16 for detecting the sizes of fifth, seventh, eleventh and thirteenth higher harmonic current at a power source system side and the higher harmonic current restriction value setting means of respective ordinal numbers. A comparing means 17 successively reduce the amplitude of the higher harmonic compensating current command by changing compensation gain K within a range where a higher harmonic current detecting value at every ordinal number does not become more than a restriction value so as to execute an operation by weakening higher harmonic curren compensation. When the amplitude of the current command becomes zero, the comparing means 18 outputs an interrupting signal and a gate voltage to the PWM converter 3 is interrupted from an AND means 15.

7. 发明专利

JP2568011B2 失效
公开(公告)号：JP2568011B2
公开(公告)日：1996-12-25
申请号：JP20560991
申请日：1991-07-23
申请人： HITACHI LTD
发明人： MASUKAWA TETSUO , MATSUMOTO MASAAKI , SAITO SUKEO , KOJIMA YASUO , SUZUKI TOSHIO , UMAGOE YUKIMORI , MORITA SEIJI
IPC分类号： G11B21/21 , G11B5/48 , G11B5/60

8. 发明专利

JPH07236215A CUTTING MECHANISM FOR COATING 失效
公开(公告)号：JPH07236215A
公开(公告)日：1995-09-05
申请号：JP2398294
申请日：1994-02-22
申请人： HITACHI LTD , HITACHI SCIENCE SYSTEMS LTD
发明人： SUZUKI TOSHIO , ASADA KOICHI
IPC分类号： H02G1/12
摘要： PURPOSE:To realize positive stripping of coating without replacing a cutter by providing a mechanism for driving a cutter into a coating, and a mechanism for turning the cutter along the outer periphery of a wire. CONSTITUTION:When a main gear 2 turns in the direction (a), a cam gear 3 sustains current state because the rotating force transmitted thereto is lower than the holding force of a gear 4 and thereby only the main gear 2 is rotated. Consequently, a cutter 6 is shifted along a slide groove 18 in the main gear 2 and a spiral groove 17 in the cam gear 3 toward the center of a wire passing hole 11. When three cutters 6 are arranged at a constant angular pitch of 120 deg., a wire 8 is pinched at three point and thereby the wire 8 does not slip but moved uniformly in the direction of the core. When the cutter 6 is guided along the slide groove 18 through a right square part, the cutter can be used on four sides thereof upon abrasion of chipping of the edge. This mechanism realizes positive stripping of coating without replacing the cutter.

9. 发明专利

JPH07119719A ELECTRIC WIRE CLAMP MECHANISM 失效
公开(公告)号：JPH07119719A
公开(公告)日：1995-05-09
申请号：JP26603193
申请日：1993-10-25
申请人： HITACHI LTD , HITACHI SCIENCE SYSTEMS LTD
发明人： ASADA KOICHI , SUZUKI TOSHIO
IPC分类号： F16B2/02 , H02G1/12
摘要： PURPOSE:To automatically generate holding power resisting to separating force by eliminating work such as maintenance for an electric wire done by a worker or the replacement of a sleeve jig due to a change in electric wire size, etc. CONSTITUTION:A power transmission system consists of a clamp claw part 13 for positively holding an electric wire and a torque holding mechanism for generating constant torque to the clamp claw part. The clamp claw part and the torque holding mechanism are actuated by means of a belt 9 through a driven pulley 10 and a main pulley 5, respectively. A connecting pulley 10 is actuated by synchronizing with the actuation of the pulley 5 and is suspended its operation when the clamp claw 13 is in a state for holding electric wire covering. In this case, a constant torque is always transmitted to the pulley 5 from a motor 2 owing to the action of a joint 3. Thus, even in 13, the electric wire is constantly and positively held with stable torque. Thus, a reduction in working time and energy saving are achieved.

10. 发明专利

JPH0729790A LITHOGRAPHY USING FOCUSSED BEAM 失效
公开(公告)号：JPH0729790A
公开(公告)日：1995-01-31
申请号：JP16764693
申请日：1993-07-07
申请人： HITACHI LTD
发明人： KATO HIROSHI , SUZUKI TOSHIO , TSUKIZOE AKIRA
IPC分类号： H01L21/027
摘要： PURPOSE:To easily and accurately judge the region on which inpattern proximity effect is generated in a focussed beam lithography and a proximity effect correction treatment is conducted on the above-mentioned region in a simple manner. CONSTITUTION:A lithography pattern is divided into straight lines L12, L13... which are extending in the scanning direction (x-direction) of electron beam, and rectangular regions 10A, 10B,... using straight lines L21, L22... which orthogonally intersecting with the above-mentioned straight lines. Also, the line segment X, which comes in contact with the profile L0 of the pattern and extending in the x-direction, is worked out and the line segment Y, which comes in contact with the profile L0 and orthogonally intersecting with the scanning direction, is worked out. The shortest line segments Xa, Xb, Xc..., passing regions 10A, 10B..., are worked out for each region, and the shortest line segments Ya, Yb, Yc... of the line segment Y pssing the same regions, are worked out. In each region, the shorter one of the line segment X and Y is set on the parameter W which shows the width of region. This value W is compared with the base values W1 and W2, and the intensity I1 to I3 of the beam with which the region is irradiated are determined. They are conducted by one graphic operation treatment.

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