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1. 发明申请

WO1992020141A1 ULTRASONIC MOTOR 审中-公开
标题翻译：超声波电机
公开(公告)号：WO1992020141A1
公开(公告)日：1992-11-12
申请号：PCT/JP1992000383
申请日：1992-03-27
申请人： SEIKO INSTRUMENTS INC. , OZAWA, Fujio , SATO, Takashi , KASUGA, Masao , OTAWA, Shuji
发明人： SEIKO INSTRUMENTS INC.
IPC分类号： H02N02/00
CPC分类号： H02N2/163 , H02N2/14
摘要： An ultrasonic motor capable of accurately driving in a stepping way a movable body without any encoder. The motor comprises a piezoelectric oscillator (A) (5) and a piezoelectric oscillator (B) (6), each of which generates a progressive wave for driving and a standing wave for stopping or a standing wave for driving and a standing wave for stopping, circuits for generating ultrasonic wave oscillations, each of which drives the oscillator (A) (5) or the oscillator (B) (6), switchover circuits for switching over the circuits, and a movable body (2) provided with a plurality of uneven parts in its circumferential cross section. By the switchover means, the ultrasonic oscillation for driving (the progressive wave or standing wave, and the standing wave oscillation for stopping are switched over to each other. Thereby, the movable body is accurately driven in a stepping way without any encoder.

2. 发明专利

JP2003243943A NEGATIVE FEEDBACK CIRCUIT 审中-公开
公开(公告)号：JP2003243943A
公开(公告)日：2003-08-29
申请号：JP2002039917
申请日：2002-02-18
申请人： OZAWA FUJIO
发明人： OZAWA FUJIO
IPC分类号： H03F3/68 , H03F1/34
摘要： PROBLEM TO BE SOLVED: To provide a negative feedback circuit capable of optionally selecting a control variable by switching setting devices and detecting devices without the need for an unnecessary control output. SOLUTION: The negative feedback circuit has detecting devices corresponding to a plurality of control variables, setting devices corresponding to the detecting devices, limiter-attached individual error amplifiers, and switches capable of controlling validity/invalidity of outputs of the amplifiers, places precedence of a degree of effect of an output of each individual error amplifiers on an output of an error summing amplifier of a next stage of the individual error amplifiers according to the combination of limit values and resistance of resistors so as to select the setting device and the detecting device without the need for an unnecessary control output, thereby optionally selecting a control variable of the negative feedback circuit. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2001141753A CURRENT AND ELECTRIC QUANTITY MEASURING CIRCUIT 失效
公开(公告)号：JP2001141753A
公开(公告)日：2001-05-25
申请号：JP32533399
申请日：1999-11-16
申请人： OZAWA FUJIO , HOKUTO DENKO KK
发明人： OZAWA FUJIO , ASHIDA TAKAO
IPC分类号： G01R22/00 , G01R15/09 , G01R19/252
摘要： PROBLEM TO BE SOLVED: To measure a current or electric quantity having a large difference between maximum value and minimum value and varying at a high speed with high precision and resolution by automatically switching the range without using a switching element. SOLUTION: Current/voltage converting circuits by an arithmetic amplifier and an I/V converting resistance are provided for the necessary number of ranges, and the respective input terminals of the current/voltage converting circuits are separated from each other by the resistance to realize the range switching function. A gain amplifier, a V/F converter, and a comparator for comparing the output voltage of the gain amplifier with a set voltage are provided for the necessary number of ranges, and a frequency output selecting circuit for selecting the frequency output used for counting according to the state of the comparator output is provided to measure a time integrated type physical quantity such as the electric quantity or electric energy at the time of voltage input.

4. 发明专利

JP2002098718A CURRENT/VOLTAGE CONVERSION CIRCUIT 失效
公开(公告)号：JP2002098718A
公开(公告)日：2002-04-05
申请号：JP2000268065
申请日：2000-09-05
申请人： OZAWA FUJIO
发明人： OZAWA FUJIO
IPC分类号： G01R15/09 , G01R19/00 , G05F1/10 , H03F1/34
摘要： PROBLEM TO BE SOLVED: To provide a current/voltage conversion circuit having a large dynamic range, and having high precision and resolution even in the case of a current changing at high speed. SOLUTION: In this circuit, operation amplifiers and I/V conversion resistances for current/voltage conversion are installed as many as the number of required ranges, and switching elements are installed in series on the I/V conversion resistances except that having the minimum range, and theses members are connected in parallel. In the circuit, when a current exceeding a set value in some range flows in the I/V conversion resistance in a smaller range by one grade than the range, the switching element is switched to the ON state, and the I/V conversion resistance in the range is allowed to become conductive, and thereby the I/V conversion resistance is changed between the ON and OFF states corresponding to the magnitude of the input current, and the voltages on both ends of each I/V conversion resistance are operated by an operation circuit, to thereby detect the current value.

5. 发明专利

JPH02237438A FUNCTION PROVIDING UNIT 失效
公开(公告)号：JPH02237438A
公开(公告)日：1990-09-20
申请号：JP5347189
申请日：1989-03-06
申请人： OZAWA FUJIO
发明人： OZAWA FUJIO
IPC分类号： H02J7/00
摘要： PURPOSE:To enable complex operation with low cost and to enable modification of function by constituting a unit having terminals to be connected, respectively, with a battery and a load and provided with compatible function for integrating physical conditions then providing an additional control function or an additional function randomly thereto. CONSTITUTION:An additional unit 5 is provided with terminals A, B to be connected with a battery and terminals C, D to be connected with a load, where the inner circuitry is constituted freely as required. The additional unit 5 has such profile as a printed board 9 mounting parts, wiring and connecting terminals is incorporated in a case 6 and secured through a printed board fixing support 8, and the additional unit 5 can be mounted/dismounted easily in/from the incorporating section of a battery application device 1 provided with device side contact terminals 12. By such arrangement, a battery application device which can realize many functions can be provided with low cost.

6. 发明专利

JPH07244080A RANGE SWITCHING CIRCUIT 失效
公开(公告)号：JPH07244080A
公开(公告)日：1995-09-19
申请号：JP5655694
申请日：1994-03-01
申请人： OZAWA FUJIO , HOKUTO DENKO KK
发明人： OZAWA FUJIO
IPC分类号： G01D3/024 , G01R15/09
摘要： PURPOSE:To obtain a range switching circuit with limited errors in the switching of a range. CONSTITUTION:A range change detecting section 31 in switching from a large range to a small range and a range change detecting section 41 in switching from a small range to a large range are arranged to detect the start and the end of overlapping of relay contacts 24 and 26 at a current/voltage conversion section 4 in the switching of the range as changes in the state of the range and a counting/control section 5 performs a computation having an actual I/V resistance value coinciding with an I/V resistance in computation to reduce measuring errors in the switching of the range.

7. 发明专利

JPH07200489A COMMON MEMORY ARBITRATION CIRCUIT 失效
公开(公告)号：JPH07200489A
公开(公告)日：1995-08-04
申请号：JP2179894
申请日：1994-01-05
申请人： OZAWA FUJIO
发明人： OZAWA FUJIO
IPC分类号： G06F15/16 , G06F9/52 , G06F15/177
摘要： PURPOSE:To obtain the common memory arbitration circuit which is short in idle time. CONSTITUTION:The priority decision circuit 8 of the arbitration circuit 10 decides priority and a system which obtains the priority once continues to have the priority unless any other system makes a request; and a sequential circuit 9 provides state transition required to generate a memory control signal for single memory access right after the priority is shifted once one of systems obtains the priority and state transition wherein a memory control signal having a short idle time is generated for memory access in a subsequent state.

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