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21. 发明专利

JPS6396722A FLOATING TYPE MAGNETIC HEAD 失效
公开(公告)号：JPS6396722A
公开(公告)日：1988-04-27
申请号：JP23919486
申请日：1986-10-09
申请人： HITACHI LTD
发明人： KAWAMURA YOSHIO , KATO SHIGEO , KANASUGI SEIJI , IMAI KUNINORI , SHIOKAWA TAKEJI
IPC分类号： G11B5/60 , G11B21/21
摘要： PURPOSE:To improve an electromagnetic transform characteristic, and to stabilize magnetic recording with high density, by constituting a floating slider plane with plural plane parts, and one ore more curved plane parts, and providing a magnetic flux gap part at a position making a minimum distance between the projecting part of the floating slider part and a magnetic recording medium. CONSTITUTION:The floating slider part 2 of a magnetic head 1 is formed with two planes intersecting mutually, and at the front of the part, an air flow terminal 4 is formed. And the magnetic flux gap part 3 of the magnetic head 1 is provided on the cross line of two floating slider planes 2 including a point P2, is provided. Thereby, it is possible to make only the magnetic flux gap part 3 approach to a magnetic disk 8 that is the magnetic recording medium, and to expand the distance between the floating slider plane 2 and the magnetic disk 8 comparatively, and an air layer passing the slider floating plane 2 is thickened, and it is possible to obtain a stable floating characteristic from the standpoint of aerodynamics. In this way, it is possible to obtain the magnetic head with few frequency of head crash due to contact with the magnetic disk, and to attain the magnetic recording with high reliability and high density.

22. 发明专利

JPS6353718A MANUFACTURE OF MAGNETIC DISK 失效
公开(公告)号：JPS6353718A
公开(公告)日：1988-03-08
申请号：JP19712986
申请日：1986-08-25
申请人： HITACHI LTD
发明人： KAWAMURA YOSHIO , IMAMURA MASAAKI , OTANI YUICHI , ITO YASUSHI , TSUCHIYAMA RYUJI , SUZUKI SHOJI , MAEHARA KIYOSHI , IMAI KUNINORI , KATO SHIGEO
IPC分类号： G11B5/84
摘要： PURPOSE:To improve the accuracy of surface forming without leaving a rolled mark, by applying pressurization press and forming a base plate having a magnetic coating material with a force larger than the elastic limit of the magnetic coating material, by using a pair of dies with a prescribed surface form. CONSTITUTION:An upper die 1 and a lower die 9 are possible to be brought into contact with the magnetic coating material through a diaphragm 5, and in the inside of the diaphragm, columnar electrostriction materials 6 are arranged two-dimensionally keeping a constant interval, and displacement, or a force is generated by impressing a voltage on respective material independently by a cable. By setting the voltage applied on respective electrostriction material at an appropriate level, it is possible to change the form of a diaphragm surface to an arbitrary curved surface, and to apply a uniform force simultaneously on the magnetic coating material over the entire lane of a magnetic disk, by the upper die, and the die. By starting contact from the center of a disk first, and expanding a part to be brought into contact to an outer periphery gradually, in a concentric circle shape, by controlling an impressed voltage, the sealing of a bubble can be prevented from occurring, and a good magnetic surface plane can be obtained. In this way, high recording density with good flatness and high slidability-resistant characteristic can be obtained.

23. 发明专利

JPS5827064B2 失效
公开(公告)号：JPS5827064B2
公开(公告)日：1983-06-07
申请号：JP15332075
申请日：1975-12-24
申请人： HITACHI LTD
发明人： KATO SHIGEO , MATSUOKA SADAO , MYATA TORIZO , MORITA OSAMU
IPC分类号： B23Q11/00 , B24B7/02 , B24B47/10 , F02P19/02

24. 发明专利

JPS5143950A 失效
公开(公告)号：JPS5143950A
公开(公告)日：1976-04-15
申请号：JP11716274
申请日：1974-10-14
申请人： HITACHI LTD
发明人： KATO SHIGEO
IPC分类号： G03H1/02

25. 发明专利

JPS5140879A 失效
公开(公告)号：JPS5140879A
公开(公告)日：1976-04-06
申请号：JP11387874
申请日：1974-10-04
申请人： HITACHI LTD
发明人： KATO SHIGEO , MOROSHIMA HEIJI
IPC分类号： H01L29/872 , H01L29/47

26. 发明专利

JPH05299548A 失效
公开(公告)号：JPH05299548A
公开(公告)日：1993-11-12
申请号：JP10636792
申请日：1992-04-24
申请人： HITACHI LTD
发明人： KATO SHIGEO , MIYATA TOSHIMITSU , KAWADA MASAHIKO
IPC分类号： H01L23/467
摘要： PURPOSE:To obtain an integrated circuit device, which is superior in cooling efficiency without using cooling water for cooling integrated circuits and has no possibility of disconnection of the circuits and to provide a highly reliable electronic computer. CONSTITUTION:A cooling coil 106 of a refrigeration machine 105 works as one part of a heat exchanger 107 and cools a cooling medium 108 heated to a high temperature to bring the medium 108 into the state of a low temperature. A cooling medium 110 brought into the state of a low temperature is sent to an integrated circuit device 101 by fans 109 through a control valve 111. A thermometer 117 is mounted to each integrated circuit chip 102 in the device 101 and detects the temperature of the integrated circuit chip. The detection signal is sent to a temperature control device 119 through a connector 118, the opening of the valve 111 is adjusted by the output of the device 119 and the temperature of the integrated circuit chip is set at a temperature most suitable for the operation of the integrated circuit chip.

27. 发明专利

JPH04352447A VACUUM MANUFACTURING DEVICE 失效
公开(公告)号：JPH04352447A
公开(公告)日：1992-12-07
申请号：JP12750091
申请日：1991-05-30
申请人： HITACHI LTD
发明人： UCHIDA FUMIHIKO , KATO SHIGEO , MIYATA TOSHIMITSU , YAMAMOTO TATSUHARU , KOHIDA HIROYUKI , KASHIMA HIDEO
IPC分类号： C30B35/00 , G01Q30/02 , G01Q30/16 , G01Q60/10 , H01L21/20 , H01L21/205 , H01L21/302 , H01L21/66 , H01L39/24
摘要： PURPOSE:To facilitate alteration of a vacuum manufacturing/analyzer of an existing constitution to a vacuum manufacturing/analyzer of other constitution and to prevent leakage of corrosive gas to the analyzer. CONSTITUTION:A load locking chamber having a first semiconductor wafer conveying inlet, is provided in each of a thin film forming unit 1, a dry cleaning unit 2, a dry etching unit 3, a transmission type electron microscope 4, a photoelectron spectroscope 5, and a scan type tunnel microscope 6, and a moving type vacuum chamber 7 having a second semiconductor wafer conveying inlet which can airtightly be connected to the first inlet, is provided.

28. 发明专利

JPH01292729A GAS DISCHARGE DISPLAY DEVICE 失效
公开(公告)号：JPH01292729A
公开(公告)日：1989-11-27
申请号：JP12171888
申请日：1988-05-20
申请人： HITACHI LTD
发明人： TODA AKIZO , IMAGAWA KAZUSHIGE , KUBOTA SHIGEO , SHINADA SHINICHI , KANEBORI KEIICHI , IMAI KUNINORI , KATO SHIGEO , NAKAMURA SHINSAKU , FUKUSHIMA MASAKAZU
IPC分类号： H01J9/02
摘要： PURPOSE:To improve the workability and the productivity of a thin plate of inorganic insulating material used for the constitution of gas discharge spaces by forming micro discharge spaces in the said plate with mechanical processes. CONSTITUTION:A ceramic thin plate in a mechanically workable state is proceed mechanically in high speed and high dimensional accuracy to make holes for micro discharge spaces in the said plate. For making holes mechanically in high speed and high dimensional accuracy, punching process or ultrasonic process able to form multiple processing jigs are suitable. As for mechanically workable inorganic insulating material ceramics before sintering, ceramics in incompletely solidified pre-sintered state, of glass precipitated with special crystals are suitable. Thereby insulating ceramic plate of high dimensional accuracy holes, of arbitrary variable hole pitches, of large area and thickness can be manufactured in high speed and high productivity to improve the quality and to reduce the cost.

29. 发明专利

JPH01242456A PRODUCTION OF RARE EARTH OXYSULFIDE SINTERED COMPACT 失效
公开(公告)号：JPH01242456A
公开(公告)日：1989-09-27
申请号：JP6744888
申请日：1988-03-23
申请人： HITACHI LTD , HITACHI MEDICAL CORP , HITACHI METALS LTD
发明人： TODA AKIZO , YAMADA TAKAMICHI , ITO YUKIO , IMAI KUNINORI , KANETOMO MASABUMI , KATO SHIGEO , TAKEUCHI HIROYUKI , TSUKUDA YASUO
IPC分类号： C04B35/547 , C04B35/00 , C04B35/64
摘要： PURPOSE:To produce the title sintered compact having luminous output with small scattering in a good yield by filling a specified substance together with rare earth oxysulfide powder in a metal capsule, by sealing after making vacuous and by heating and pressing. CONSTITUTION:In the production of rare earth oxysulfide (hereinafter referred to as Gd2O2S) sintered compact by filling Gd2O2S powder in the metal capsule, by sealing after making the capsule vacuous and by heating and pressing, the substance having higher vapor pressure of sulfur at >=500 deg.C than that of Gd2O2S (e.g., FeS2, CuS, Ag2S, PbS) is made to coexist in the capsule. Thereby, the decomposition of Gd2O2S at a high temp. is suppressed and the scattering of the characteristics of Gd2O2S sintered compact is remarkably decreased to obtain the sintered compact suitable as scintillator for X-ray CT.

30. 发明专利

JPS6419385A GAS DISCHARGE DISPLAY DEVICE 失效
公开(公告)号：JPS6419385A
公开(公告)日：1989-01-23
申请号：JP17460287
申请日：1987-07-15
申请人： HITACHI LTD
发明人： KUBOTA SHIGEO , NAKAMURA SHINSAKU , KANEBORI KEIICHI , TODA AKIZO , KATO SHIGEO , FUKUSHIMA MASAKAZU , IMAGAWA KAZUSHIGE , SHINADA SHINICHI
IPC分类号： G09F9/313 , H01J9/02 , H01J11/12 , H01J11/24 , H01J11/36 , H01J11/44 , H01J17/16 , H01J17/49
摘要： PURPOSE: To enhance the accuracy of a gas discharge space structural body and to improve productivity by applying adhesives at prescribed intervals on the surfaces of foil sheets and laminating, pressurizing and adhering these sheets, then expanding the laminate to form a honeycomb core, thereby constituting gas discharge spaces. CONSTITUTION: The blank foil sheet 22 which constitutes the wall thickness (t) of the gas discharge space structural body 21 is so cut that the size in its short direction attains the size T in the thickness direction of the gas discharge space structural body 21. Joining materials 23 are then applied at the prescribed intervals thereon and the cut sheets are laminated, pressurized and joined to form a laminated block 24. This laminated block 24 is provided with fine grooves 27 or fine holes 28 necessary for enclosing of a discharge gas and is expanded in a lamination direction, by which the honeycomb core 26 is formed. Spaces are regularly arranged in a matrix form in the honeycomb core 26. The gas discharge space structural body 21 is thus produced with the high accuracy without variations in the shapes of the discharge spaces and the productivity is improved.

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