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1. 发明专利

JPH0576196B2 失效
公开(公告)号：JPH0576196B2
公开(公告)日：1993-10-22
申请号：JP14532789
申请日：1989-06-09
申请人： HITACHI LTD
发明人： HATANO JUJI , YANO SHINICHIRO , MORI HIROYUKI , YAMADA KOJI , HIRANO MIKIO
IPC分类号： G11C17/00 , G11C11/44 , H01L27/10 , H01L39/22

2. 发明专利

JPH03235419A JOSEPHSON INTEGRATED CIRCUIT DRIVEN BY DC POWER SUPPLY 失效
公开(公告)号：JPH03235419A
公开(公告)日：1991-10-21
申请号：JP2855090
申请日：1990-02-09
申请人： HITACHI LTD
发明人： HATANO YUJI , YANO SHINICHIRO , MORI HIROYUKI , YAMADA KOJI , HIRANO MIKIO
IPC分类号： H01L39/22 , G06F7/38 , H01L27/18 , H03K3/38 , H03K19/195
摘要： PURPOSE:To manage with the few number of constituent elements and the few number of switching stages by providing each of Josephson elements in a baffle circuit with the constitution of a first and a second serial connection bodies in which plural magnetic flux coupled type Josephson elements are connected in series. CONSTITUTION:A stabilizing resistor 113 is of 1/4 times as small size as load resistors 111 to 112, and has a function to shunt a gate current and return one of JI elements fallen into a voltage state to a superconductive state when a state called hang-up that both one of the JI elements of a first group and one of the JI elements of a second group fall into the voltage state occurs. A first JI element 101, a second and third JI elements 102, 103, and a fourth JI element 104 are provided with two input signal lines respectively. In the case the JI of elements of the first group fall into the voltage state, the current of a positive direction flows in load inductance 114, and output becomes '1'. On the contrary, in the case the JI elements of the second group fall into the voltage state, the current of a negative direction flows in the load inductance 114, and the output becomes '0'.

3. 发明专利

JPH0379090A SUPERCONDUCTING SWITCHING DEVICE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0379090A
公开(公告)日：1991-04-04
申请号：JP21478789
申请日：1989-08-23
申请人： HITACHI LTD
发明人： MORI HIROYUKI , YAMADA KOJI , YANO SHINICHIRO , HATANO YUJI , HIRANO MIKIO
IPC分类号： H01L39/22
摘要： PURPOSE:To accurately control superconducting current flowing to a connecting position by employing a Josephson junction between both superconducting wirings to be superconductively connected. CONSTITUTION:A first superconducting wiring is superconductively connected to a second superconducting wiring through a second Josephson junction. Here, a first Josephson junction for performing a switching operation is specified in junction area by a resist pattern 11, and the second junction is specified in the junction area by a resist pattern 10. A desired superconducting current value can be obtained by selecting the forming area of the inserted junction (second junction). Thus, the magnitude of superconducting critical current flowing to a connector of the superconducting wirings can be accurately controlled with satisfactory reproducibility by specifying the forming area of the junction.

4. 发明专利

JPH0251077B2 失效
公开(公告)号：JPH0251077B2
公开(公告)日：1990-11-06
申请号：JP17719281
申请日：1981-11-06
申请人： HITACHI LTD
发明人： TAKAMURA YOSHUKI , FUKUSEIJI SEIYA , AIMOTO YASUO , HIRANO MIKIO , CHINO KOICHI
IPC分类号： G05D7/00 , F04B13/00 , F04B15/02 , F04B23/00 , F04B23/02 , F04B49/06 , F04B49/20 , G05D7/01 , G05D7/06

5. 发明专利

JPH0224360B2 失效
公开(公告)号：JPH0224360B2
公开(公告)日：1990-05-29
申请号：JP16909480
申请日：1980-12-02
申请人： HITACHI LTD
发明人： HORIUCHI SUSUMU , HIRANO MIKIO , SAITO TOORU
IPC分类号： G21F9/16 , G21F9/00

6. 发明专利

JPS6480900A EQUIPMENT FOR VOLUME REDUCING AND SOLIDIFYING RADIOACTIVE WASTE 失效
公开(公告)号：JPS6480900A
公开(公告)日：1989-03-27
申请号：JP23719187
申请日：1987-09-24
申请人： HITACHI LTD
发明人： SUGAWARA NOBUHIKO , SUMIKAWA MASAHARU , HIRANO MIKIO , SANADA TAKAHIRO , HIRAYAMA SATOSHI
IPC分类号： G21F9/36 , G21F9/00 , G21F9/30
摘要： PURPOSE:To relieve the impact at pellet falling and to prevent breakage by providing a ladder shooter on the mid-point of a pellet falling passage. CONSTITUTION:The radioactive waste liquid is transferred from a radioactive waste liquid storage tank 1 which stores the radioactive waste liquid generated in an atomic power plant into a supply tank 3 by a waste liquid transfer pump 2. The waste liquid stored therein is fed to a constant feed pump 4 and is dried and pulverized by a centrifugal thin film dryer 5. The powder is then pelletized by a pelletizer 6. The pellets produced by the pelletizer 6 are passed through the ladder shooter 7 and are packed into a drum can 8. The pellets fall while colliding against the ladders in the casing of the ladder shooter 7 and can be thereby reduced in the falling speed and, therefore, the falling impact at the time of falling and packing into a drum can is relieved. The breakage of the pellets is thus prevented.

7. 发明专利

JPS6336199A PROCESSOR FOR RADIOACTIVE WASTE 失效
公开(公告)号：JPS6336199A
公开(公告)日：1988-02-16
申请号：JP17752486
申请日：1986-07-30
申请人： HITACHI LTD
发明人： SAKURAOKA TADASHI , HIRANO MIKIO
IPC分类号： G21F9/16 , G21F9/00 , G21F9/30

8. 发明专利

JPS62171571A SEALING METHOD IN VALVE SEAT OF THREE-WAY BALL VALVE 失效
公开(公告)号：JPS62171571A
公开(公告)日：1987-07-28
申请号：JP1197286
申请日：1986-01-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KURAMOCHI KAZUYUKI , TOMATSURI YUICHI , HIRANO MIKIO , HIRAYAMA SATOSHI
IPC分类号： F16K5/06 , F16K11/087
摘要： PURPOSE:To prevent the leakage of a fluid, by adding a fluid pressure to a pressure of a disc spring for sealing a valve seat, and thereby making a sealing pressure to the valve seat greater than the fluid pressure. CONSTITUTION:A valve seat 18 is urged against a ball 11 by a disc spring 13 through a valve seat pusher 15 and a valve seat receiver 17, thereby providing an initial sealing surface pressure. There is defined a cavity for receiving a fluid between the valve seat pusher 15 and the disc spring 13. Accordingly, when the pressurized fluid flows into a valve housing 19, a fluid pressure is added to the valve seat pusher 15. The fluid pressure is applied to a difference in area between an outer diameter of an O-ring 16 and a seal diameter of the valve seat 18. Accordingly, as the sealing surface pressure by the disc spring 13 is added, the sealability is further improved.

9. 发明专利

JPS62168533A CONTROL SYSTEM OF TABLETTING TYPE GRANULATOR 失效
公开(公告)号：JPS62168533A
公开(公告)日：1987-07-24
申请号：JP777286
申请日：1986-01-17
申请人： HITACHI LTD
发明人： HAMAMOTO MASAHIRO , HORIUCHI SUSUMU , HIRANO MIKIO , SANADA TAKAHIRO
IPC分类号： G21F9/30 , B01J2/22 , G21F9/00
摘要： PURPOSE:To impart a constant configurational dimension and strength, by controlling the amount of a powder pushed in between pistons by automatically adjusting the rotation of a powder mixing and push-in blade so that the configurational dimension of a detected pellet coincides with an objective value. CONSTITUTION:At the time of the finish of compression molding, the relation between two pistons 49, 50 detected by position detectors 55, 56, that is, the thickness of a formed pellet is inputted to an operational controller 53. On the basis of this information, the number of rotations of an electromotor 44 are changed by the operational controller 53 to adjust the feed amount of a powder to a powder receiving part 46 by a powder mixing and push-in blade 45. Concretely, when the thickness of the formed pellet detected as the gap between the pistons 49, 50 by the position detectors 55, 56 at the time of the finish of compression is larger than an objective value, the number of rotations of the electromotor 44 are lowered to reduce the amount of the powder fed to the powder receiving part 46 by the powder mixing and push-in blade 45.

10. 发明专利

JPS62145147A METHOD FOR MONITORING MOISTURE CONTENT OF RADIOACTIVE POWDER 失效
公开(公告)号：JPS62145147A
公开(公告)日：1987-06-29
申请号：JP28558185
申请日：1985-12-20
申请人： HITACHI LTD
发明人： HIRAYAMA SATOSHI , HIRANO MIKIO
IPC分类号： G01N25/56
摘要： PURPOSE:To monitor the moisture content of the powder formed from a dryer even without a neutron moisture meter by measuring the powder temp. CONSTITUTION:The temp. of the powder discharged from the dryer is usually considered to be 150-160 deg.C. However, the heat is absorbed by the moisture in the powder and the temp. of the powder is considered to decrease with an increase in the moisture content. The monitoring of the moisture content is, therefore, made possible by measuring the temp. of the powder. The detected temp. is converted to a digital value and is compared with the max. temp. till then to detect the width of a decrease. The moisture content is judged to be abnormal in the event of a decrease of the detected temp. beyond the prescribed temp. width. The pulverization is then stopped. The moisture content of the powder is thereby made estimatable with accuracy of about + or -0.75[wt%] if the width of the temp. decrease is known.

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