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1. 发明专利

JPH10177906A FEROMAGNETIC MATERIAL 失效
公开(公告)号：JPH10177906A
公开(公告)日：1998-06-30
申请号：JP33795396
申请日：1996-12-18
申请人： HITACHI LTD
发明人： WATANABE SATOSHI , ONOKI TOSHIYUKI , ICHIMURA MASAHIKO , ONO YOSHIMASA , HASHIZUME TOMIHIRO , WADA YASUO
IPC分类号： B82B1/00 , G11B9/14 , H01F1/00
摘要： PROBLEM TO BE SOLVED: To provide the feromagnetic material, which can miniaturize the atomic size and can hold magnetization stably. SOLUTION: A first atom 11, the same kind of a second atom 12 and the same kind of or different kind of third atoms or a atom group 13 are provided. A chemical coupling bond 14 is formed between the first atom and the third atom or the atom group 12 and between the second atom and the third atom or the atom group. Between the first atom and the second atom, an atom moving path 15 is formed without passing the chemical coupling bond, or the third atom or the atom group. Thus, the atoms or the atom groups 11 to 13 are arranged on the surface of a substrate, and this structure is constituted as the basic unit. Thus, the feromagnetic material, which can be microscopically reduced to the size of the atom and can hold the stable magnetization, can be obtained.

2. 发明专利

JPH02148404A MAGNETIC RECORDER AND RECORDING/REPRODUCING METHOD 失效
公开(公告)号：JPH02148404A
公开(公告)日：1990-06-07
申请号：JP30052688
申请日：1988-11-30
申请人： HITACHI LTD
发明人： KATO TAKAHIKO , ONO YOSHIMASA , KASAI MASAHIRO , IMAGAWA TAKAO , KUNIYA JIRO
IPC分类号： G11B5/02 , G11B5/00 , G11B5/11 , G11B5/127
摘要： PURPOSE:To improve recording density in magnetic recording to the extent of the recording density obtained in magneto-optical recording by irradiating a superconducting part covering a magnetic recording part with light so that a normal conductive state may be obtained and allowing a part of the line of magnetic flux to pass there. CONSTITUTION:A superconducting layer 6 is provided between a magnetic pole part 3 and a magnetic layer 2. Next, the superconducting part 8 covering a part 7 where the magnetic recording is performed is irradiated with the light beam (laser light beam) 9 so as to destroy the superconducting state only at that part and obtain the normal conductive state. In such a state, a part of the line of magnetic flux 4 passes the normal conductive part 8 and inverts the spontaneous magnetism of the magnetic layer 2 to perform the magnetic recording. At such a time, the diameter of the magnetic flux which passes the normal conductive part 8 is converged to the same size as the diameter of the laser light 9 with which the part 8 is irradiated, so that the size of the magnetic recording part 7 is made small to the extent of the diameter of the laser light beam 9. Thus, the recording density in the magnetic recording is improved to the extent of that in the magneto-optical recording.

3. 发明专利

JPH0497146A SIX-PLATE PROJECTING SYSTEM LIQUID CRYSTAL PROJECTOR 失效
公开(公告)号：JPH0497146A
公开(公告)日：1992-03-30
申请号：JP21034990
申请日：1990-08-10
申请人： HITACHI LTD
发明人： ETO MASAKATA , FUKUDA KYOHEI , ONO YOSHIMASA
IPC分类号： G03B33/12 , G02F1/13
摘要： PURPOSE:To improve the utilization efficiency of light by providing a polarizing beam splitter which splits natural light from a light source into two polarized light beams and making the polarized light beams incident on respective liquid crystal panels without through a polarizing plate. CONSTITUTION:An R picture is formed by an R light source lamp 1R, a reflection mirror 2R, the polarizing beam splitters 3R and 4R, reflectors 5R and 6R, and liquid crystal panels 7R and 8R, and a G picture is formed by a G light source lamp 1G, a reflection mirror 2G, the polarizing beam splitters 3G and 4G, reflectors 5G and 6G, and the liquid crystal panels 7G and 8G, then a B picture is formed by a B light source lamp 1B, a reflection mirror 2B, the polarizing beam splitters 3B and 4B, reflectors 5B and 6B, and the liquid crystal panels 7B and 8B. After forming the respective R, G and B pictures, they are synthesized by a dichroic prism 30 and projected by a projecting lens 40 in one system. Thus, the utilization efficiency of the light is improved.

4. 发明专利

JPS61252588A DRIVING OF EL ELEMENT 失效
公开(公告)号：JPS61252588A
公开(公告)日：1986-11-10
申请号：JP9368585
申请日：1985-05-02
申请人： HITACHI LTD
发明人： SUZUKI MASAYOSHI , ONO YOSHIMASA , IZAKI NAOYUKI
IPC分类号： H05B33/08 , G09G3/12

5. 发明专利

JPH0511399B2 失效
公开(公告)号：JPH0511399B2
公开(公告)日：1993-02-15
申请号：JP5727487
申请日：1987-03-12
申请人： HITACHI LTD
发明人： TAGUCHI KAZUO , FUYAMA MORIAKI , KIZAWA KENICHI , TAMURA KATSU , ONO YOSHIMASA , ABE YOSHIO , NAKAYAMA TAKAHIRO , SATO AKIRA , HASHIMOTO KENICHI
IPC分类号： H05B33/12 , G09F9/33 , H05B33/14 , H05B33/22

6. 发明专利

JPH03129698A METHOD FOR DRIVING MATRIX DISPLAY DEVICE 失效
公开(公告)号：JPH03129698A
公开(公告)日：1991-06-03
申请号：JP26628289
申请日：1989-10-16
申请人： HITACHI LTD
发明人： KOSAKA MASAHIRO , ONO YOSHIMASA , ANDO MASAHIKO
IPC分类号： H05B33/08 , G09G3/30
摘要： PURPOSE:To drive a matrix display device by means of a power supply of single polarity so as to reduce the withstand strength of a driving IC by alternately vibrating the electric potential of an electroluminescent panel near its threshold voltage, and adding a modulating voltage from a longitudinal and cross line driving IC to the display panel, and driving the panel by means of the differential voltage of them. CONSTITUTION:The reference electric potential of longitudinal and cross line driving IC 2, 3 is controlled in a floating state by respective switch elements 51 and 51, and 53 and 54. The IC 2, 3 are provided with respective logic power sources LVR and LVC and respective reference voltages GDR and GDC, and the IC3 is further provided with a switch 52 for grounding the GDC and an output power source VC and a high- voltage power source VH. are provided with a switch 51 and the IC2 also has switches 54, 53. The IC control signal CRT is added to the IC 2, 3 via photo couplers 4C, 4R and a signal M is added to each switch and an electroluminescent panel 1 is AC driven and one part of the signal CRT is controlled. When the reference voltage is set to near the threshold voltage of the electroluminescent panel the whole panel is AC driven near the threshold value and the modulating voltage is added to the reference voltage only in lighted picture elements. The withstand strength of the IC is possible only with the modulating voltage.

7. 发明专利

JPH02223915A DISPLAY DEVICE 失效
公开(公告)号：JPH02223915A
公开(公告)日：1990-09-06
申请号：JP4300689
申请日：1989-02-27
申请人： HITACHI LTD
发明人： MIKAMI YOSHIAKI , ONO YOSHIMASA , KITAJIMA MASAAKI
IPC分类号： G02F1/1335 , G02F1/13357 , G09F9/00 , G09F9/30
摘要： PURPOSE:To thin a display device and to make the device light in weight by forming a plane light emitting means on at least one side of an electrode substrate in the display device where an electrooptical substance is held between the electrode substrate, where a 2nd electrode is formed, facing a substrate and an electrode. CONSTITUTION:The plane light emitting means 14 is provided on at least one side of the electrode substrate 17 and a transparent electrode 10 and an orientation film 9 are successively formed on the surface in contact with liquid crystal on the facing substrate 17. Meanwhile, layers constituting a thin film EL element 11 are successively formed on the other side of the substrate and the thin film EL element 11 is constituted of a lower transparent electrode 12, a lower insulating layer 13, the EL light emitting layer 14 made of a thin film EL material, an upper insulating layer 15 and an upper transparent electrode 16. By connecting an EL power source 18 between the lower transparent electrode 12 and the upper transparent electrode 16 and impressing AC voltage, light is emitted as backlight. Thus, an excellent large area display is obtained and the display device is made light in weight and thinned.

8. 发明专利

JPS63224190A EL DEVICE AND METHOD OF EMITTING LIGHT 失效
公开(公告)号：JPS63224190A
公开(公告)日：1988-09-19
申请号：JP5727487
申请日：1987-03-12
申请人： HITACHI LTD
发明人： TAGUCHI KAZUO , FUYAMA MORIAKI , KIZAWA KENICHI , TAMURA KATSU , ONO YOSHIMASA , ABE YOSHIO , NAKAYAMA TAKAHIRO , SATO AKIRA , HASHIMOTO KENICHI
IPC分类号： H05B33/12 , G09F9/33 , H05B33/14 , H05B33/22

9. 发明专利

JPS61117598A Electric field light emitting element driver 失效
标题翻译：电场发光元件驱动器
公开(公告)号：JPS61117598A
公开(公告)日：1986-06-04
申请号：JP23843184
申请日：1984-11-14
申请人： Hitachi Ltd
发明人： SUZUKI MASAYOSHI , IZAKI NAOYUKI , KITAJIMA MASAAKI , ONO YOSHIMASA
IPC分类号： H05B33/08 , G09F3/12 , G09G3/12

10. 发明专利

JPH10223941A MAGNETO-RESISTANCE EFFECT ELEMENT 失效
公开(公告)号：JPH10223941A
公开(公告)日：1998-08-21
申请号：JP2122997
申请日：1997-02-04
申请人： HITACHI LTD
发明人： ICHIMURA MASAHIKO , ONOKI TOSHIYUKI , WATANABE SATOSHI , ONO YOSHIMASA , HASHIZUME TOMIHIRO , WADA YASUO
IPC分类号： H01L43/08
摘要： PROBLEM TO BE SOLVED: To obtain a magneto-resistance effect element of an atomic size, by controlling the magnetism of very small areas on atomic fine lines by using a combination of specific atomic species or specific atomic arrangement. SOLUTION: A magneto-resistance effect element is provided with a nonmagnetic area 44 composed of nonmagnetic conductive atomic fine lines, and two ferromagnetic areas 43 composed of ferromagnetic conductive atomic fine lines arranged on both sides of the nonmagnetic area 44. Each ferromagnetic conductive atomic fine line is composed of a plurality of nonmagnetic atoms 41 and 42, which are arranged so that the peak of their densities of states may appear near the Fermi level. Therefore, an atomic-size element showing a magneto-resistance effect can be manufactured.

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