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1. 发明专利

JPS59168390A Reactor 失效
公开(公告)号：JPS59168390A
公开(公告)日：1984-09-22
申请号：JP4230083
申请日：1983-03-16
申请人： Denriyoku Chuo Kenkyusho , Hitachi Ltd
发明人： SAKURAI AKIO , KOGA KAZUO , OGUCHI ISAO , KATOU RIYOUICHI
IPC分类号： G21C5/10 , G21C1/02 , G21C13/00 , G21C13/024
CPC分类号： Y02E30/34

2. 发明专利

CA1129566A CALANDRIA TANK OF PRESSURE TUBE TYPE NUCLEAR REACTOR 未知
公开(公告)号：CA1129566A
公开(公告)日：1982-08-10
申请号：CA335232
申请日：1979-09-10
申请人： HITACHI LTD
发明人： KOGA KAZUO , OGUCHI ISAO
IPC分类号： G21C13/00 , G21C1/20
摘要： A calandria tank constituted by a cylindrical barrel, upper and lower tube sheets attached to the calandria tank so as to close the upper and lower end openings of said cylindrical barrel and a plurality of calandria tubes each containing a pressure tube and a nuclear fuel and connected at its upper and lower ends to said upper and lower tube sheets, the space in the calandria tank being filled with heavy water. The cylindrical barrel is divided into an upper barrel section and a lower barrel section which are connected to each other by means of a connecting mechanism capable of absorbing the difference in the thermal expansion between the calandria tubes and the cylindrical barrel.

3. 发明专利

JPS60162257A MASK 失效
公开(公告)号：JPS60162257A
公开(公告)日：1985-08-24
申请号：JP1520284
申请日：1984-02-01
申请人： HITACHI LTD
发明人： DAN MASAHIRO , KOGA KAZUO , SEKIGUCHI KOUJI
IPC分类号： G03F1/00 , G03F1/38 , H01L21/027
摘要： PURPOSE:To make a dimension checking work efficient by entering dimension information near a dimension measuring cell pattern of a mask to make it easy to not only find the cell pattern but also read dimensions. CONSTITUTION:A dimension measuring cell pattern 6 is entered on a reticle 5, and number ''3'' as dimension information 7 is entered near this cell pattern 6. Design value ''3'' is patterned with a number 7' near a dimension measuring cell pattern 6' in each pellet 9 on a mask 8 through a lens 10 for reduction. Thus, it is easy to find the cell pattern 6', and it is unnecessary in reading of the design value to collate a design drawing each time, and the dimension checking work is performed efficiently.

4. 发明专利

JPS601457B2 失效
公开(公告)号：JPS601457B2
公开(公告)日：1985-01-14
申请号：JP7201081
申请日：1981-05-13
申请人： HITACHI LTD
发明人： KOGA KAZUO , OGUCHI ISAO , KATO RYOICHI
IPC分类号： E02D27/34 , E02D27/44 , G21D1/02

5. 发明专利

JPS59231449A DEFECT DETECTING APPARATUS 失效
公开(公告)号：JPS59231449A
公开(公告)日：1984-12-26
申请号：JP10568183
申请日：1983-06-15
申请人： HITACHI LTD
发明人： MASUMOTO TSUTOMU , TAKEUCHI MAMORU , SUZUKI SHIZUO , KOGA KAZUO , SUZUKI KENICHI
IPC分类号： G21C17/00 , G01N29/14 , G01N29/24 , G01N29/28 , G01N29/04
摘要： PURPOSE:To simply and certainly measure a defect and brittleness in the straight pipe part and the different diameter part of a zirconium alloy pressure pipe material for constituting the core of a heavy water reactor, by pressing a sensor of an ultraviolet wave and a false AE wave to a tube wall by applying pressure to bellows. CONSTITUTION:A guide cylinder 12 having a sensor guiding groove is fixed to a measuring head 15 and bellows 17 for the entrance and exit of a sensor is fixed to a sensor attaching instrument 16 having a roller 10 inserted into the guide cylinder 12 at one end thereof and the guide groove at the other end thereof through a pressure sensitive sensor 18. The pressure P applied to the bellows 17 results in the displacement 8 of the sensor 4 and the distance changed by the inclination of the sensor 4 can be calculated. In addition, the pressing force to the sensor 4 can be made constant according to a measuring place. Possibility for applying damage to a pressure pipe wall is eliminated and the entry and exit to the pressure pipe of a measuring apparatus is smoothly performed.

6. 发明专利

JPS58176573A CARBONIC ACID GAS SEAL PORTION STRUCTURE OF UPPER EXTENDED TUBE 失效
公开(公告)号：JPS58176573A
公开(公告)日：1983-10-17
申请号：JP5817082
申请日：1982-04-09
申请人： HITACHI LTD
发明人： MICHISHITA HIDENORI , OGUCHI ISAO , SUZUKI KENICHI , OYAMADA TSUGIO , KOGA KAZUO
IPC分类号： G21C1/20 , G21D1/00

7. 发明专利

JPS58146893A SEAL PLUG FOR CONVERTER REACTOR 失效
公开(公告)号：JPS58146893A
公开(公告)日：1983-09-01
申请号：JP2883082
申请日：1982-02-26
申请人： HITACHI LTD
发明人： MORI YASUHIKO , KUNIYA JIROU , MASAOKA ISAO , SUZUKI KENICHI , KOGA KAZUO
IPC分类号： G21C13/067 , G21C1/20 , G21D1/00

8. 发明专利

JPS58145319A METHOD FOR ROLL JOINT 失效
公开(公告)号：JPS58145319A
公开(公告)日：1983-08-30
申请号：JP2847882
申请日：1982-02-24
申请人： HITACHI LTD
发明人： TAKEUCHI MAMORU , MASUMOTO TSUTOMU , SUZUKI SHIZUO , KOGA KAZUO
IPC分类号： B21D39/10 , B21D39/04
摘要： PURPOSE:To perform a roll joint without causing the generation of cracks in main pipes, by expanding plural concentric pipes which have different diameters respectively and duplicated pipe ends with the aids of expanding rolls provided to the inside of said pipes, and restricting the expanding work basing on the quantity of displacement detected by sensors which are provided to the outside. CONSTITUTION:The one end of the 1st pipe 10 is inserted into the one end of the 2nd pipe 11, and expanding rolls are installed in the inner circumferential side of the pipe 10, and displacement sensors 13 and 14 are installed at the positions located on the same outer circumference of the pipe 11 and symmetrically with respect to the pipe axis. And when a mandrel shaft 2 is rotated and simultaneously advanced to the left, expanding rolls 3 retained by a housing 3a expand the pipes radially by delta0 the initial displacement quantity, while the rolls 3 are rotating, to roll-joint the pipe 10 to the pipe 11. At that time, the pipes are expanded so that the radial displacement quantity delta of the rolls 3 is delta=delta0+deltar, and the displacement quantity deltar of the outer pipe 11 is detected by the sensors 13 and 14 to stop the expanding work at the time when the deltar attains a prescribed value.

9. 发明专利

JPH0478876B2 失效
公开(公告)号：JPH0478876B2
公开(公告)日：1992-12-14
申请号：JP22420183
申请日：1983-11-30
申请人： HITACHI LTD
发明人： DOGE HIDENORI , KOGA KAZUO , MASUMOTO TSUTOMU
IPC分类号： F16L13/14

10. 发明专利

JPS63128348A MASK CORRECTING METHOD 失效
公开(公告)号：JPS63128348A
公开(公告)日：1988-05-31
申请号：JP27399386
申请日：1986-11-19
申请人： HITACHI LTD
发明人： KOGA KAZUO
IPC分类号： G03F1/00 , G03F1/72 , H01L21/027
摘要： PURPOSE:To perform correction with high reliability without correcting directly a defective part, by superimposing a first mask in which a prescribed pattern is formed on a second mask in which an auxiliary pattern complementing the defective part of the mask is formed. CONSTITUTION:By superimposing the first mask 1 in which the prescribed pattern 4 is formed on the surface of a transparent substrate 3a on the second mask 2 constituted by the formation of the auxiliary pattern 5 which complements the pattern defective part 6 at a place corresponding to the defective part 6 of the first mask 1, the correction of the pattern defective part 6 in the first mask 1 is performed. In other words, since the auxiliary pattern 5 which complements the pattern defective part 6 in the first mask 1 is formed at the place corresponding to the second mask 2, no defective part 6 is transferred on an object to be transferred by using the masks 1 and 2 after superimposing them, even without correcting the defective part 6 directly. In such way, the correction of the defective part 6 can be attained indirectly, and a mask correction technique with high reliability can be offered.

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