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31. 发明专利

JPH01242891A VACUUM GATE VALVE DEVICE 失效
公开(公告)号：JPH01242891A
公开(公告)日：1989-09-27
申请号：JP6955488
申请日：1988-03-25
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST
发明人： SONOBE TADASHI , SHIMIZU MASATSUGU , YAMAMOTO MASAHIRO , OBARA KENJIRO
IPC分类号： F16K51/02
摘要： PURPOSE:To restrain the increase in the amount of leakage in a gate seal, in a gate valve device to be used for an ultra-high vacuum apparatus or the like, by automatically controlling the operating pressure while detecting the amount of leakage in the gate seal part, if any leakage occurs in the process of baking. CONSTITUTION:A leak detector 13 is provided to a vacuum vessel 1, and the detected signal S'1 thereof is input into a pressure command generating device 11. If the amount of leakage in the gate seal part begins to increase in the process of baking, the operating air pressure is automatically controlled on the basis of the detected signal S'1. Thus, the permanent set of the knife edge of the gate seal can be restrained to a minimum, so that the amount of leakage in the gate seal can be restrained.

32. 发明专利

JPS6240679B2 失效
公开(公告)号：JPS6240679B2
公开(公告)日：1987-08-29
申请号：JP10314979
申请日：1979-08-15
申请人： HITACHI LTD
发明人： SHIMIZU MASATSUGU , YAMAMOTO MASAHIRO , TAKATSU HIDEYUKI , SUZUKI SATORU , SATO HIROSHI
IPC分类号： G21B1/11 , G21B1/00 , G21B1/17 , G21B1/25

33. 发明专利

JPS6240676B2 失效
公开(公告)号：JPS6240676B2
公开(公告)日：1987-08-29
申请号：JP14795078
申请日：1978-12-01
申请人： HITACHI LTD
发明人： SHIMIZU MASATSUGU , YAMAMOTO MASAHIRO , WATANABE TAKASHI
IPC分类号： G21B1/05 , G21B1/00 , H05H1/12

34. 发明专利

JPS60187884A PLASMA DETECTING COIL IN NUCLEAR FUSION DEVICE 失效
公开(公告)号：JPS60187884A
公开(公告)日：1985-09-25
申请号：JP4206884
申请日：1984-03-07
申请人： JAPAN ATOMIC ENERGY RES INST , HITACHI LTD
发明人： OGIWARA TOKUO , AIKAWA YASUSHI , YAMAMOTO MASAHIRO , KAJIURA SOUJI
IPC分类号： H05H1/00 , G21B1/00 , G21B1/05

35. 发明专利

JPS6039582A PORT FOR FUSION DEVICE 失效
公开(公告)号：JPS6039582A
公开(公告)日：1985-03-01
申请号：JP14810383
申请日：1983-08-15
申请人： JAPAN ATOMIC ENERGY RES INST , HITACHI LTD
发明人： YAMAMOTO MASAHIRO , OGIWARA TOKUO , KOUDA TOMOKAZU , KAJIURA SOUJI , HAGIWARA KOUJI
IPC分类号： G21B1/11 , G21B1/00 , G21B1/05 , G21B1/17

36. 发明专利

JPS57135391A TOROIDAL TYPE NUCLEAR FUSION EQUIPMENT 失效
公开(公告)号：JPS57135391A
公开(公告)日：1982-08-20
申请号：JP2004381
申请日：1981-02-16
申请人： JAPAN ATOMIC ENERGY RES INST , HITACHI LTD
发明人： SHIMIZU MASATSUGU , TAKATSU HIDEYUKI , YAMAMOTO MASAHIRO , TAKIZAWA TERUHIRO
IPC分类号： G21B1/11 , G21B1/00 , G21B1/17 , H05H1/12

37. 发明专利

JPS54157973A *ABNORMAL FEEDING* DETECTING CIRCUIT FOR USE IN SHEET FEEDING APPARATUS 失效
公开(公告)号：JPS54157973A
公开(公告)日：1979-12-13
申请号：JP6580578
申请日：1978-06-02
申请人： HITACHI LTD
发明人： YAMAMOTO MASAHIRO
IPC分类号： B65H7/06
摘要： PURPOSE:To provide an ''abnormal feeding'' detecting circuit for use in sheet feeding apparatus, which is designed to detect optical property or other of the sheets transported successively and compare the optical property of one sheet with that of the next sheet and thus to produce an alarm signal when there is substantial difference between them, whereby a detector not affected by degradation in sensibility of the sensor element. CONSTITUTION:Sheet 10 is lighted by light source 1 and light transmitted therethrough is detected by sensor 2. Quantity of light received by sensor 2 is converted into digital amount by means of A-D converter 3. Then, the signal is supplied to register 5 and also to comprising circuit 9, in which it is compared with the signal pertinent to the preceding sheet that is given from register 6. With arrival of the next sheet, logical switches 4, 8 are turned to the opposite side, whereby signal is supplied to register 6 and at the same time signal is afforded from register 5 to comparing circuit 9. Subsequently, the above procedures take place alternately. Thus, in the arrangement of this invention, detection of abnormal sheet feeding is achieved always through comparison with preceding sheet, so that the apparatus is not affected by deterioration of the sensor element.

38. 发明专利

JPS54117896A VACUUM VESSEL FOR FUSION REACTOR 失效
公开(公告)号：JPS54117896A
公开(公告)日：1979-09-12
申请号：JP2522278
申请日：1978-03-06
申请人： JAPAN ATOMIC ENERGY RES INST , HITACHI LTD
发明人： YAMAMOTO MASAHIRO , TAKATSU HIDEYUKI , SHIMIZU MASATSUGU , SAIGOU TOMOMOTO
IPC分类号： G21B1/11 , G21B1/00 , G21B1/17 , H05H1/02
摘要： PURPOSE:To enhance the electric resistance of a vacuum vessel by increasing the thickness of the end of bellows segment larger than that at the center portion to absorb the rigid difference with the ring segment causing stress at the end to thereby retain the strength of the entire vessel. CONSTITUTION:The thickness of the end portion 22 of bellows segment 20 is formed larger than the center portion 21. The end portion 22 is thus welded to the ring segment 10. There occurs stress due to the rigid difference between the segment 20, but the end portion 22 absorbs the stress to enhance the electric resistance of the vacuum vessel in truss peripheral direction.

39. 发明专利

JP2012238007A Projection type video display device and projection optical unit 有权
标题翻译：投影类型视频显示设备和投影光学单元
公开(公告)号：JP2012238007A
公开(公告)日：2012-12-06
申请号：JP2012152013
申请日：2012-07-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HIRATA KOJI , KATO SHUJI , IKEDA HIDEHIRO , YAMAMOTO MASAHIRO
IPC分类号： G03B21/14 , G02B13/04 , G02B13/18 , G02B13/24 , G02B19/00 , G02F1/13 , G03B21/10
摘要： PROBLEM TO BE SOLVED: To provide a rear projection type video display unit capable of greatly shortening a projection distance of a projection optical system, reducing an interval between a screen lower edge and a display unit lower edge, and achieving compactification of the display unit.SOLUTION: A rear projection type video display unit has a housing (5) for fixedly housing projection lenses (2, 3) for enlarging and projecting an image displayed on a video display element onto a transmission type screen (6), a light path folding mirror (7) for folding a projection luminous flux from the projection lenses (2, 3) halfway, and a drive circuit for displaying a video on the video display element. Assuming that a diagonal dimension of the transmission type screen (6) is SS (inch), a depth of the housing (5) is D (inch), and a length from the lower edge of the transmission type screen (6) to the lower edge of the housing (5) is L (inch), the following conditions are satisfied: 40
摘要翻译：要解决的问题：为了提供能够大大缩短投影光学系统的投影距离的背投式视频显示单元，减少屏幕下边缘和显示单元下边缘之间的间隔，并且实现显示单元。解决方案：背投型视频显示单元具有用于固定地容纳投影透镜（2,3）的壳体（5），用于将显示在视频显示元件上的图像放大并投影到透射型屏幕（6）上，用于从投影透镜（2,3）中途折叠投射光束的光路折叠镜（7），以及用于在视频显示元件上显示视频的驱动电路。假设透射型屏幕（6）的对角尺寸为SS（英寸），壳体（5）的深度为D（英寸），并且从透射型屏幕（6）的下边缘到壳体（5）的下边缘为L（英寸），满足以下条件：40

40. 发明专利

JPH01313258A STACKER MECHANISM FOR CUT PAPER PRINTER 失效
公开(公告)号：JPH01313258A
公开(公告)日：1989-12-18
申请号：JP13928288
申请日：1988-06-08
申请人： HITACHI LTD
发明人： YAMAMOTO MASAHIRO , HATASAWA KIKUO
IPC分类号： B41J13/00 , B65H31/30 , B65H31/32
摘要： PURPOSE:To make sheets stacked on an elevator block so as to be taken out without stopping any printing operation of a cut paper printer by setting an auxiliary tray to a discharge port of the cut paper printer when the sheets collected on the elevator block of a stacker are taken out. CONSTITUTION:When sheets stacked on an elevator block 4 of a stacker 5 are taken out, an auxiliary tray 3 is extruded out of a printer 1 after lowering the elevator block 4, and it is set to a discharge port of the printer 1. Afterward, the sheets 6 being discharged out of the discharge port are received by the auxiliary tray 3 and stacked. Next, the stacker 5 is separated from the printer 1 and, after taking out the stacked sheet 6, the empty stacker 5 is loaded in the printer 1 again, making the elevator block 4 go up, and the sheets stacked on the auxiliary tray 3 are supported by the elevator block 4. Thus, the auxiliary tray 3 is drawn into the printer 1 in a state of receiving the sheets 6 being discharged by the elevator block 4.

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