公开(公告)号：US20060159599A1

公开(公告)日：2006-07-20

申请号：US10546867

申请日：2004-02-26

Applicant: Masato Kiuchi ,  Takaomi Matsutani ,  Hiroaki Sakurai ,  Kazuo Tokuda

Inventor： Masato Kiuchi ,  Takaomi Matsutani ,  Hiroaki Sakurai ,  Kazuo Tokuda

IPC: B01J19/08

CPC classification number: C01B13/11 ,  B03C3/016 ,  C01B2201/14 ,  C01B2201/82 ,  H01T19/04 ,  H01T23/00

Abstract: An air activating device comprising a wind tunnel (1) formed with a suction port and an exhaust port, a first corona discharge electrode pair (4) and a second corona discharge electrode pair (5) disposed in the wind tunnel (1) to generate corona discharge, and an ozone generating lamp (6) disposed in the wind tunnel to generate ozone, wherein the first corona discharge electrode pair (4), the ozone generating lamp (6) and the second corona discharge electrode pair (5) are disposed in the order mention in an air flowing direction from the suction port to the exhaust port, the first and second corona discharge electrode pairs (4, 5) respectively have discharge electrodes (41, 51) and counter electrodes (42, 52), and the discharge electrodes (41, 51) and counter electrodes (42, 52) are disposed in the order mentioned in the air flowing direction.

Abstract translation: 一种空气启动装置，包括形成有吸入口和排气口的风洞（1），设置在风洞（1）中的第一电晕放电电极对（4）和第二电晕放电电极对（5），以产生 电晕放电和设置在风洞中的臭氧发生灯（6）产生臭氧，其中设置第一电晕放电电极对（4），臭氧发生灯（6）和第二电晕放电电极对（5） 第一和第二电晕放电电极对（4,5）分别具有从吸入口到排气口的空气流动方向的顺序，分别具有放电电极（41,51）和对置电极（42,52），并且 放电电极（41,51）和对置电极（42,52）以空气流动方向的顺序设置。

公开(公告)号：US4028602A

公开(公告)日：1977-06-07

申请号：US594226

申请日：1975-07-09

Applicant: Kazuo Tokuda ,  Masanobu Tsugita ,  Hiroshi Minakuchi

Inventor： Kazuo Tokuda ,  Masanobu Tsugita ,  Hiroshi Minakuchi

IPC: H02P7/06 ,  H02P7/288 ,  H02P5/12

CPC classification number: H02P7/2885

Abstract: An automatic speed control circuit for an electric motor is provided with a d.c. amplifier circuit having an output transistor of npn type. The motor is driven by a control signal supplied from the collector of the output transistor to control the motor speed. The collector of the output transistor is connected to one terminal of the electric motor, while another terminal of the motor and the emitter of the output transistor are respectively coupled to the positive and the negative terminals of a d.c. power source. The control signal supplied from the output transistor to the motor is changed in compliance with any variation of the power source. Therefore, the motor speed is independent of any variation of the power source.

Abstract translation: 用于电动机的自动速度控制电路具有直流电。 具有npn型输出晶体管的放大器电路。 电机由输出晶体管的集电极提供的控制信号驱动，以控制电机转速。 输出晶体管的集电极连接到电动机的一个端子，而电动机的另一个端子和输出晶体管的发射极分别耦合到直流的正极和负极端子。 能量源。 从输出晶体管提供给电动机的控制信号根据电源的任何变化而改变。 因此，电机速度与电源的任何变化无关。

公开(公告)号：US4024445A

公开(公告)日：1977-05-17

申请号：US593269

申请日：1975-07-07

Applicant: Kazuo Tokuda ,  Hiroshi Minakuchi

Inventor： Kazuo Tokuda ,  Hiroshi Minakuchi

IPC: H02P29/00 ,  H02P23/00 ,  H02P27/02 ,  H02P5/16

CPC classification number: H02P23/16 ,  Y10S388/902

Abstract: A circuit for producing an error voltage for a negative feedback loop for automatic control of a motor speed comprises a monostable multivibrator triggered by a feedback signal of a frequency representative of the motor speed for generating a rectangular signal of a predetermined pulse width, a pulse height proportional to a source voltage for the multivibrator, and a duty cycle decided by the frequency. A potentiometer-integrator derives a variable voltage proportional to an average of the rectangular signal voltage. A potential divider for the source voltage derives a reference voltage indicative of a desired motor speed. A comparator derives a difference between the variable and reference voltages as the error voltage.

Abstract translation: 用于产生用于自动控制电动机速度的负反馈回路的误差电压的电路包括由代表电动机速度的频率的反馈信号触发的单稳态多谐振荡器，用于产生预定脉冲宽度的矩形信号，脉冲高度 与多谐振荡器的源极电压成比例，以及由频率决定的占空比。 电位器积分器得到与矩形信号电压平均成比例的可变电压。 源极电压的分压器产生指示所需电机速度的参考电压。 比较器将可变参考电压与参考电压之差作为误差电压。

公开(公告)号：US3986056A

公开(公告)日：1976-10-12

申请号：US566473

申请日：1975-04-09

Applicant: Kazuo Tokuda

Inventor： Kazuo Tokuda

IPC: H03K3/023 ,  H03K3/284 ,  H03K17/28 ,  H03K17/00

CPC classification number: H03K3/023 ,  H03K3/284

Abstract: A pulse generating circuit which normally draws no current in the absence of a trigger pulse is disclosed. The circuit generates a pulse having a constant width independent of temperature or power supply voltage variations in response to a trigger pulse. The pulse width is determined by an RC time constant and the ratio of a resistive voltage divider.

Abstract translation: 公开了一种通常在不存在触发脉冲的情况下不消耗电流的脉冲发生电路。 电路产生具有恒定宽度的脉冲，其独立于温度或响应于触发脉冲的电源电压变化。 脉冲宽度由RC时间常数和电阻分压器的比例决定。

公开(公告)号：US4751735A

公开(公告)日：1988-06-14

申请号：US836487

申请日：1986-03-05

Applicant: Shigeru Kagawa ,  Kazuo Tokuda

Inventor： Shigeru Kagawa ,  Kazuo Tokuda

IPC: H04B1/16 ,  H04H1/00 ,  H04H40/72 ,  H04H5/00

CPC classification number: H04H40/72 ,  H04B1/1661

Abstract: A stereo demodulation device includes an audio signal processing circuit, a muting circuit, a muting switch, and a variable resistor. At least a given signal processing function of the audio signal processing circuit is adjusted by supplying a control current from a control terminal thereof. The muting circuit outputs or blocks an audio signal processed by the audio signal processing circuit. A muting switch is commonly connected to a control terminal of the muting circuit and the control terminal for the given signal processing function of the audio signal processing circuit. The variable resistor adjusts the control current.

Abstract translation: 立体声解调装置包括音频信号处理电路，静音电路，静音开关和可变电阻器。 音频信号处理电路的至少一个给定的信号处理功能是通过从其控制端提供控制电流来调节的。 静音电路输出或阻止由音频信号处理电路处理的音频信号。 静音开关通常连接到静音电路的控制端子和用于音频信号处理电路的给定信号处理功能的控制端子。 可变电阻调节控制电流。

公开(公告)号：US4562412A

公开(公告)日：1985-12-31

申请号：US499387

申请日：1983-05-31

Applicant: Mitsutoshi Sugawara ,  Kazuo Tokuda ,  Tokio Sawataishi

Inventor： Mitsutoshi Sugawara ,  Kazuo Tokuda ,  Tokio Sawataishi

IPC: H03L7/24 ,  H03B5/00 ,  H03B5/36

CPC classification number: H03L7/24

Abstract: An oscillation circuit has a free-running oscillator operating at a predetermined frequency. A signal generator generates a trigger signal in synchronism with an input signal. The trigger signal is supplied to the free-running oscillator to bring the signal level in the oscillator to a reference level. The oscillator keeps its frequency even when there is no input signal, the frequency being approximately equal to an integer multiplied by the frequency of the input signal.

Abstract translation: 振荡电路具有以预定频率工作的自由振荡的振荡器。 信号发生器与输入信号同步地产生触发信号。 触发信号被提供给自由振荡器，以使振荡器中的信号电平达到参考电平。 即使没有输入信号，振荡器也保持其频率，频率近似等于整数乘以输入信号的频率。

公开(公告)号：US4258311A

公开(公告)日：1981-03-24

申请号：US971136

申请日：1978-12-19

Applicant: Kazuo Tokuda ,  Hidetaro Watanabe ,  Yoshikazu Shimizu

Inventor： Kazuo Tokuda ,  Hidetaro Watanabe ,  Yoshikazu Shimizu

IPC: H01L27/04 ,  G05F1/56 ,  G05F3/18 ,  H01L21/822 ,  H01L21/8222 ,  H01L27/06 ,  H01L29/90

CPC classification number: H01L27/0652 ,  G05F3/18 ,  Y10S323/907

Abstract: A constant voltage generator capable of generating a constant voltage having a fixed temperature coefficient regardless of manufacturing errors is disclosed. The constant voltage generator comprises a transistor construction having a forwardly biased PN-junction, a Zener diode connected in series to an electrical path between the emitter and a collector of the transistor construction, a first resistor connected between a base and the emitter of the transistor construction, and a second resistor connected between the base and the collector of the transistor construction. The transistor construction, the Zener diode and the first and second resistors are all formed in a common semiconductor substrate, the first resistor being composed of a region of one conductivity type and the second resistor being composed of a pinch resistor formed in the substrate. The transistor and Zener diode may be composed of a first semiconductor region of one conductivity type, a second region of the other conductivity type formed in the first semiconductor region and a third region of the one conductivity type being formed in the second region. The first region may be composed of a fourth region of the other conductivity type formed in the first semiconductor region, and the second resistor may be composed of a fifth region of the other conductivity type formed in the first semiconductor region and operable as a resistive region and a sixth region of the one conductivity type covering a part of the fifth region.

Abstract translation: 公开了能够产生具有固定温度系数的恒定电压而不管制造误差的恒定电压发生器。 恒压发生器包括具有正向偏置PN结的晶体管结构，齐纳二极管串联连接到晶体管结构的发射极和集电极之间的电气路径，第一电阻器连接在晶体管的基极和发射极之间 并且连接在晶体管结构的基极和集电极之间的第二电阻器。 晶体管结构，齐纳二极管和第一和第二电阻都形成在公共半导体衬底中，第一电阻器由一种导电类型的区域组成，第二电阻器由形成在衬底中的压电电阻组成。 晶体管和齐纳二极管可以由一个导电类型的第一半导体区域，在第一半导体区域中形成的另一个导电类型的第二区域和一个导电类型的第三区域形成在第二区域中。 第一区域可以由形成在第一半导体区域中的另一导电类型的第四区域构成，并且第二电阻器可以由形成在第一半导体区域中的另一导电类型的第五区域构成，并且可用作电阻区域 以及覆盖第五区域的一部分的一种导电类型的第六区域。

公开(公告)号：US4489344A

公开(公告)日：1984-12-18

申请号：US413656

申请日：1982-09-01

Applicant: Masaki Ikeda ,  Tatsuyuki Amano ,  Kazuo Tokuda

Inventor： Masaki Ikeda ,  Tatsuyuki Amano ,  Kazuo Tokuda

IPC: H04N9/64 ,  H04N9/535

CPC classification number: H04N9/641

Abstract: In a signal processing device, such as a television receiver, a multiplex signal processing circuit with a switching device for selecting either a first image signal and a second image signal. A clamping circuit is provided for clamping the pedestal potential of the second signal at a reference voltage, a comparator compares the pedestal potential of the first signal with the reference voltage, and the pedestal potential of the first signal is equalized to the reference signal in accordance with the comparator output.

Abstract translation: 在诸如电视接收机的信号处理装置中，具有用于选择第一图像信号和第二图像信号的开关装置的多路复用信号处理电路。 提供一个钳位电路，用于将参考电压钳位第二信号的基座电位，比较器将第一信号的基座电位与参考电压进行比较，并将第一信号的基座电位与基准信号相等 与比较器输出。

公开(公告)号：US4414569A

公开(公告)日：1983-11-08

申请号：US339225

申请日：1982-01-13

Applicant: Kazuo Tokuda ,  Tokio Sawataishi

Inventor： Kazuo Tokuda ,  Tokio Sawataishi

IPC: H03K5/1252 ,  H04N5/08 ,  H04N5/213

CPC classification number: H04N5/08

Abstract: The present invention provides a transistor circuit suited for a synchronizing signal separator. More particularly, the transistor circuit can separate the noise-free synchronizing signal from a composite video signal.The transistor circuit comprises a transistor having an emitter coupled to an input terminal through a capacitor and to a constant current source, a base applied with a bias voltage and a collector connected to an output terminal, a comparator comparing the emitter voltage with a reference voltage, and means for turning the transistor off in response to the comparator output. A current charging circuit is preferably added.

Abstract translation: 本发明提供一种适用于同步信号分离器的晶体管电路。 更具体地，晶体管电路可以将无噪声同步信号与复合视频信号分离。 晶体管电路包括晶体管，其具有通过电容器连接到输入端的发射极和恒定电流源，施加有偏置电压的基极和连接到输出端子的集电极;将发射极电压与参考电压进行比较的比较器 以及用于响应于比较器输出使晶体管截止的装置。 优选添加电流充电电路。

公开(公告)号：US4013972A

公开(公告)日：1977-03-22

申请号：US682799

申请日：1976-05-03

Applicant: Shigeo Nishitoba ,  Kazuo Tokuda

Inventor： Shigeo Nishitoba ,  Kazuo Tokuda

IPC: H03G1/00 ,  H03G3/10 ,  H03G3/30

CPC classification number: H03G1/0023 ,  H03G3/10

Abstract: A gain controllable amplifier of the present invention comprises a first and a second differential amplifier. The first differential amplifier serves as an amplifier for an input signal to be impressed on emitters connected in common with each other, while the second differential amplifier serves as a base bias voltage control circuit of the first differential amplifier. The bias voltage derived from the second differential amplifier is changed by a D.C. bias voltage applied to the bases of the respective transistors in the second differential amplifier. The connected to the respective output terminals of the second differential amplifier are transistors whose bases receive a constant voltage. The gain of the first differential amplifier can be controlled by adjusting the D.C. bias voltage applied to the second differential amplifier. The present invention further comprises two current supply circuit each connected to the aforesaid respective output terminals of the second differential amplifier. When one of the transistors in the second differential amplifier is brought into a cut-off condition, the base bias voltage on the first differential amplifier is supplied directly through a current supply circuit. As a result, a variable range of the base voltage on the second differential amplifier is becomes wider, with a resulting increase in the gain control range of the first differential amplifier, thereby achieving increased attenuation of gain. The amplifier according to the present invention is suited for use as a gain control circuit especially for an audio circuit which requires attenuation to a great degree.