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91. 发明专利

JPS6223765A THERMAL RECORDING HEAD 失效
公开(公告)号：JPS6223765A
公开(公告)日：1987-01-31
申请号：JP16182285
申请日：1985-07-24
申请人： HITACHI LTD
发明人： WATANABE MICHIHIRO , ZEN MUNETOSHI , NAGATA TATSUYA , SATOU KAZUYASU , HARA HIDEKAZU
IPC分类号： B41J2/345
摘要： PURPOSE:To permit the density of color to be controlled by the amount of energy charged in thermal transfer recording by providing plural heating resistors, capable of forming one dot and having different widths, connected in parallel. CONSTITUTION:A resistor 2 consists of plural resistors 21, 22, 23, 24, and 25 which are connected in parallel. The central resistor 23 of resistor 2 is made wider and the resistors on both sides are made narrower. When direct current is applied across electrodes 1, the current flows in a concentrated manner in the central portion in an early stage and as time passes color region is widened by the heating of sides. By the combined use of the increase on decrease in color or transfer regions and the gradation of area, a gradation can be obtained without lowering resolution.

92. 发明专利

JPS61290418A RECORDING DEVICE 失效
公开(公告)号：JPS61290418A
公开(公告)日：1986-12-20
申请号：JP13170985
申请日：1985-06-19
申请人： HITACHI LTD
发明人： WATANABE MICHIHIRO , NAGATA TATSUYA , SATOU KAZUYASU
IPC分类号： G02F1/05 , B41J2/465 , G02F1/03
摘要： PURPOSE:To speed up an optical shutter function and to improve the reliability of a head with simple constitution by coloring an medium by light radiated from a light source on the basis of the intermittent control of an optical shutter array for transmitting/interrupting light by polarizing plates and an input signal. CONSTITUTION:Light from the light source 12 forms its image on the coloring medium 22 through a color filter 13, the optical shutter array 15 surrounded by the polarizing plates 14, 16 and a rod lens 17 and the image is fixed by pressing and fixing rollers 18, 20. A PLZT element built in the shutter array 15 is provided with an optical shutter function by turning on/off voltage. Thus, the optical shutter function is speeded up with the simple constitution and the reliability of the head is improved. If addition, noise can be reduced because the medium 22 is not contacted with the head function system.

93. 发明专利

JPH11260011A HEAD SUPPORTING MECHANISM 失效
公开(公告)号：JPH11260011A
公开(公告)日：1999-09-24
申请号：JP5769698
申请日：1998-03-10
申请人： HITACHI LTD
发明人： ARISAKA HISAHIRO , YOSHIDA TAKASHI , SATOU KAZUYASU , NISHI YOSHIKO , NANBA IRIZOU
IPC分类号： G11B21/21
摘要： PROBLEM TO BE SOLVED: To improve a recording density by providing an actuator for positioning that can be formed without using any complex assembly process where a drive voltage is low and there is no vibration due to the movement of a head supporting member and improving the head positioning precision of a magnetic disk device. SOLUTION: A movable part including a slider 5 and a head mounting part 23 is supported at a rotation supporting part. By so arranging the magnetic attractive force between a stator 22 and the rotor 23 to form a couple, a movable part is rotated without generating a force in a translation direction, a positioning error due to VCM is corrected, and a magnetic head 6 is positioned at a target position. According to the invention, a high-speed rotary disk type information storage with a high recording density can be realized inexpensively and in a large number without a high-voltage power supply.

94. 发明专利

JPH11248458A ROTATING ELECTROMAGNETIC FIELD GYRO, ANGULAR VELOCITY DETECTOR AND ANGLE DETECTOR 失效
公开(公告)号：JPH11248458A
公开(公告)日：1999-09-17
申请号：JP4827698
申请日：1998-02-27
申请人： HITACHI LTD
发明人： MURANISHI MASARU , MURANUSHI FUMITAKA , SATOU KAZUYASU
IPC分类号： G01C19/56 , G01C19/58 , G01P9/04
摘要： PROBLEM TO BE SOLVED: To eliminate mechanically movable parts to enable the long term use at a high reliability, by elastically holding a magnetic body which a rotary shaft pierces in a rotating magnetic field, and measuring the torsional displacement of the magnetic body. SOLUTION: When an external force is applied for rotating e.g. angular velocity detector elements 1, 2 round an axis x, a rotating electromagnetic field is generated at a central part 13 of a core 8 and the gyro moment acting on an angular motion quantity of the electromagnetic field acts on coils 9-12 or central part 13 of the core 8, the core 8 is fixed so that the position of a frame part 15 may not change relative to laser light sources 3, 4, beam splitter 5, and position detector elements 6, 7, the central part 13 is held elastically with a frame part 14 and hence torsionally displaces in a positive y-axis direction. The position detector elements 6, 7 detect the torsion angle of the central part 13 from the position of an incident light varying, depending on the torsional displacement, to obtain a gyro moment and rotation a angular velocity round the x-axis from the torsion angle.

95. 发明专利

JPH10300474A ANGULAR VELOCITY DETECTING DEVICE 失效
公开(公告)号：JPH10300474A
公开(公告)日：1998-11-13
申请号：JP10859397
申请日：1997-04-25
申请人： HITACHI LTD
发明人： MURANUSHI FUMITAKA , NISHI YOSHIKO , HORINO MASAYA , SATOU KAZUYASU , FUKUDA KAZUYUKI , AKASHI TERUHISA
IPC分类号： G01C19/56 , G01C19/5642 , G01P9/04
摘要： PROBLEM TO BE SOLVED: To easily manufacture a small, high-sensitivity angular velocity measuring device. SOLUTION: A pair of piezoelectric plates 2 of the same size are placed with their respective surfaces not located on the same plane, a bimorph piezoelectric actuator 1 is placed between the piezoelectric plates 2, and the bimorph piezoelectric actuator 1 and the pair of piezoelectric plates 2 are wrapped in an elastic body and are fixed and integrated together to form a cantilever vibrator; the vibrator is excited by the bimorph piezoelectric actuator 1, and a Coriolis force generated by rotational angular velocity around the longitudinal direction of the vibrator is detected by the pair of piezoelectric plates 2.

96. 发明专利

JPH10268212A OPTICAL SWITCH 失效
公开(公告)号：JPH10268212A
公开(公告)日：1998-10-09
申请号：JP7306097
申请日：1997-03-26
申请人： HITACHI LTD
发明人： SATOU KAZUYASU , HORINO MASAYA , AKASHI TERUHISA , KOMATSU AYAFUMI
IPC分类号： G02B6/26 , G02B26/08
摘要： PROBLEM TO BE SOLVED: To manufacture the optical switch only through a simple two-dimensional assembling process by moving an optical fiber fixation member by a driving force generation member and switching a connection state. SOLUTION: The input-side end part of an input optical fiber 201 on a substrate 100 is fixed to an input optical fiber holding member 301 by using a fiber pressure plate 311. An output optical fiber fixation member 303 is provided on the substrate 100 right opposite the input optical fiber fixation member 302. To the output optical fiber fixation member 303, output optical fibers 202 and 203 are fixed by using a fiber pressure plate 313. Further, electromagnetic actuators 401 and 402 consisting of coils and permanent magnets for attracting a soft magnetic member 400 are fixed on the substrate 100 so that the soft magnetic member 400 fixed atop of a cantilever is clamped.

97. 发明专利

JPH10222633A IC CARD 失效
公开(公告)号：JPH10222633A
公开(公告)日：1998-08-21
申请号：JP2474297
申请日：1997-02-07
申请人： HITACHI LTD
发明人： SATOU KAZUYASU , OKI MASARU
IPC分类号： B42D15/10 , G06K17/00 , G06K19/077 , G06K19/10 , G06T7/00
摘要： PROBLEM TO BE SOLVED: To improve the accuracy of the confirmation of the owner of an IC card, to prevent the illegal use of the IC card caused by robbery, etc., and to improve the safety of the IC card by covering the upper part of a photoelectric converting element on a base board with a translucent member, and storing photoelectrically converted information in an IC chip. SOLUTION: An IC chip 2 for storing the processing or storage of information, outside terminal 6 for operating the input and output of information for the IC chip 2, and photoelectric converting element 4 having a function for converting an optical signal into an electric signal or the liek are mounted on a plastic base board 10. Moreover, the surface of the photoelectric converting element 4 is covered with a translucent member 5. The IC chip 2 used here is a microprocessor having an arithmetic function and a memory function. Also, the photoelectric converting element 4 is an element having a function for converting the information of contrast into an electric signal such as, for example, a charge coupled device. Also, the translucent member 5 is a sheet- shaped member made of transparent glass or plastic.

98. 发明专利

JPH10142532A MATRIX OPTICAL WAVEGUIDE SWITCH AND OPTICAL PATH SWITCHING DEVICE 失效
公开(公告)号：JPH10142532A
公开(公告)日：1998-05-29
申请号：JP30171496
申请日：1996-11-13
申请人： HITACHI LTD
发明人： AKASHI TERUHISA , HARADA TAKESHI , SATOU KAZUYASU , HORINO MASAYA
IPC分类号： G02B26/08
摘要： PROBLEM TO BE SOLVED: To eliminate the need for robots and mechanical moving mechanisms and to obtain a self-holding type switch which allows miniaturization and integration to a higher scale and has high reliability by successively sticking respectively specific substrates having flow passages, through-hole, valves, etc., to each other, thereby forming a laminated structure. SOLUTION: The first layer substrate passages 11i are formed at a first layer substrate 9 so as to cross the intersected points of matrix optical waveguides 10 and the first layer substrate throughholes 13i formed at their terminal parts. The second layer substrate through-holes (for refractive index matching agents) 15C1 and (for compressed air) 15C2 are formed in part of the second layer substrate 14. The third layer substrate flow passages (for matching agents) 19 and (for air) 20, the projecting valves for the matching agents and the projecting valves for air are simultaneously formed on the rear surface of the substrate 16. The third layer substrate through-holes (for matching agents) 17 and (for air) 18 are formed on the front surface of the substrate 16. The through-holes 23, 24 are similarly formed on the fourth layer substrate 22 and recessed parts 25 for electrodes are formed on the rear surface. Thin-film electrode patterns for valve driving are formed on the bottoms thereof.

99. 发明专利

JPH10111419A OPTICAL BRANCHING ELEMENT WITH LIGHT INTERRUPTIVE FUNCTION 失效
公开(公告)号：JPH10111419A
公开(公告)日：1998-04-28
申请号：JP26698796
申请日：1996-10-08
申请人： HITACHI LTD
发明人： AKASHI TERUHISA , HARADA TAKESHI , SATOU KAZUYASU , HORINO MASAYA
IPC分类号： G02B26/02 , G02B6/12 , G02B6/122
摘要： PROBLEM TO BE SOLVED: To provide a small-sized optical branching element of a self-hold type with long term reliability without moving a waveguide part by sticking plural layers of substrates to each other and constituting a flow passage of two inputs/one output through a valve part. SOLUTION: The flow passage 15a, etc., through which a diffractive index matching agent and compressed air flow arranged respectively traversing a Y type branch optical waveguide 13 and the waveguide of a branching destination and an ejecting though hole 14a, etc., existing on the flow passage end part are formed on a first layer substrate 2. The through holes 17a, 17b going to the flow passage 15a, etc., are formed on a second layer substrate 3. The flow passage going to the through holes 17a, 17b, the valve and the through holes 19a, 19b are formed on a third layer substrate 4. A fourth layer substrate 5 is provided with the separate through holes 20a, 20b going to the though holes 19a, 19b. By such a constitution, two sets of flow passages provided with two pieces of valves for one Y type branch optical waveguide 13 are formed. Such an optical branching element and an external circulation equipment making flow two kinds of fluids are provided, and the fluids are made flow through the flow passage, and light is transmitted/interrupted.

100. 发明专利

JPH09159936A OPTICAL SWITCH AND ITS MANUFACTURE 失效
公开(公告)号：JPH09159936A
公开(公告)日：1997-06-20
申请号：JP31870495
申请日：1995-12-07
申请人： HITACHI LTD
发明人： SATOU KAZUYASU , HORINO MASAYA , HARADA TAKESHI , AKASHI TERUHISA , MURANISHI MASARU
IPC分类号： G02B26/08
摘要： PROBLEM TO BE SOLVED: To switch optical paths with a low voltage of

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