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公开(公告)号：JP2002198667A
公开(公告)日：2002-07-12
申请号：JP2000395281
申请日：2000-12-26
Applicant: ISHIKAWAJIMA HARIMA HEAVY IND
Inventor： FUKUDA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To simplify assembling process and realize cost reduction of an electronic unit by making it possible to laminate simply circuit boards in a case which has simple structure and can be easily manufactured, and to provide a case having a high recycling factor which can be easily dismantled. SOLUTION: This case for an electronic apparatus is provided with a case main body (14) formed of a bottom plate (11) and side plates (12a, 12a', 12b, 12b'). An upper part of the case main body (14) is opened. At least a pair of the side plates (12a, 12a') facing each other from among the four side plates are provided with the respective steps having a plurality of steps wherein internal surfaces stretch in order from the lower step to the upper step. Circuit boards (1) are supported with the steps, so that a plurality of circuit boards are laminated in the inside by mounting and fixing the circuit boards on the steps in sequence from above. Thus, structure of the case is simplified.
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公开(公告)号：JPH11187644A
公开(公告)日：1999-07-09
申请号：JP34913997
申请日：1997-12-18
Applicant: ISHIKAWAJIMA HARIMA HEAVY IND
Inventor： FUKUDA TAKESHI , ENDO MAKOTO
Abstract: PROBLEM TO BE SOLVED: To provide a power start control circuit, which starts the supply of power to load when output of a generator comes to a specified value but continues to supply power, even if the output drops under this specified value. SOLUTION: In a power start control circuit 5 which controls the output of a converter power source 3, which converts and outputs the output of the generator 1 fluctuating by the number of revolutions to load 4, the power start control circuit 5 starts the output to the load 4 from the converter power source 3, when it comes to the first voltage where the output of the generator 1 becomes stable, and breaks the output to the load 4 from the converter power source 3, when the output of the generator 1 drops to the second voltage smaller than the first voltage.
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Patent Agency Ranking
公开(公告)号：JP2002198680A
公开(公告)日：2002-07-12
申请号：JP2000395560
申请日：2000-12-26
Applicant: ISHIKAWAJIMA HARIMA HEAVY IND
Inventor： FUKUDA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To provide a cable noise suppression device for an airborne electronic equipment which can suppress a radiating noise from a cable between a three- phase AC generator and a switching shunt power circuit, to which power is supplied from the generator, to a required level. SOLUTION: This device includes a three-phase power cable 3 for connecting a three-phase AC generator 1 for airborne electronic equipment and a switching shunt power circuit 2 to which power is supplied from the generator, a conductive inner shield 4 covering the cable, a doughnut ferrite core 6 surrounding a part of the internal shield, and a ferromagnetic outer shield 8 covering the inner shield and the ferrite core. Both the inner shield 4 and the outer shield 8 are grounded.
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公开(公告)号：JP2005123809A
公开(公告)日：2005-05-12
申请号：JP2003355416
申请日：2003-10-15
Applicant: Ishikawajima Harima Heavy Ind Co Ltd , 石川島播磨重工業株式会社
Inventor： FUKUDA TAKESHI
IPC: H03K5/04 , H03K5/1252
Abstract: PROBLEM TO BE SOLVED: To stably create a mask signal with a desired time width even if the mask signal is created by using a delay circuit including a CR integration circuit. SOLUTION: A signal mask device is provided with a supply voltage monitor means detecting the fall of a supply voltage and outputting the result of the detection as a pulse-like voltage detection signal, a pulse width extending means extending the time width of the voltage detection signal to a prescribed time width, a CR delay means delaying an output signal of the pulse width extending means based on a time constant specified by an electrostatic capacity and a resistance value so as to output it and an AND logic circuit which AND-operates an output signal of the CR delay means, the output signal of the pulse width extending means and a signal to be masked. A fixed time width is set to a time width by which the CR delay means stably operates. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：即使通过使用包括CR积分电路的延迟电路创建掩模信号，也可以稳定地产生具有所需时间宽度的掩模信号。 解决方案：信号屏蔽装置设置有检测电源电压下降并将检测结果作为脉冲状电压检测信号输出的电源电压监视装置，延长装置的时间宽度的脉冲宽度延伸装置 电压检测信号为规定的时间宽度，CR延迟意味着基于由静电电容和电阻值指定的时间常数来延迟脉冲宽度延伸装置的输出信号以输出它和AND逻辑电路AND - 操作CR延迟装置的输出信号，脉冲宽度延伸装置的输出信号和要被屏蔽的信号。 固定时间宽度被设定为CR延迟装置稳定地操作的时间宽度。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2000306623A
公开(公告)日：2000-11-02
申请号：JP11066899
申请日：1999-04-19
Applicant: ISHIKAWAJIMA HARIMA HEAVY IND
Inventor： MAEJIMA TETSUO , FUKUDA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To provide a shield in a simple way. SOLUTION: This method connects a flexible flat electric wire 1 comprising multiple electric wires 2 arranged in parallel and joined planarly with flexible insulating resin 3 with a board 4. A metal tape 11 is adhered on prescribed positions on the surface of the flexible flat electric wire 1, individual electric wires 2 of the flexible flat electric wire 1 are inserted into through holes 5a of the board 4, and are connected, conductive pins 13 pass through the insulating resin 3 between the metal tape 11 and the electric wires of the flexible flat electric wire 1, and through holes 5b, and the conductive pins 13 and the through holes 5b are connected.
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公开(公告)号：JPH09243698A
公开(公告)日：1997-09-19
申请号：JP5280196
申请日：1996-03-11
Applicant: ISHIKAWAJIMA HARIMA HEAVY IND
Inventor： FUKUDA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To improve a failure detection ratio by providing a voltage monitoring circuit directly coupled to each wire of a three-phase generator and having two closed circuits including a light emitting element and a signal processing circuit including a light receiving element corresponding to the light emitting element for outputting two signals. SOLUTION: When respective wires of a three-phase generator are normal, current flows to closed circuits 4a, 4c of a voltage monitoring circuit 1, is converted into light by photo diodes 3a, 3c, and is transmitted to photo Darlington transistors (light receiving elements) 5d, 5e. In a signal processing circuit 2, the light receiving elements 5d, 5e react with light of the photo diodes 3a, 3c to have current flowing, thereby signals at terminals (d), (e) exhibit 0V. On the other hand, when a wire connected to a terminal (a) is broken, no current flows to the light receiving element 5d, so that a signal at the terminal (d) exhibits a certain value. Similarly when the terminal (c) or the terminal (b) is broken, a signal at the terminal (e) or both signals at the terminals (d), (e) exhibit a certain value. Thus with monitored signals at the terminals (d), (e), it can be easily detected which wire has been broken.
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公开(公告)号：JPS61196073A
公开(公告)日：1986-08-30
申请号：JP3353785
申请日：1985-02-21
Applicant: ISHIKAWAJIMA HARIMA HEAVY IND
Inventor： SHICHI KOSUKE , OOSHIMA AKIRA , FUKUDA TAKESHI , YAMAKI MASAMICHI
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