公开(公告)号：US4926101A

公开(公告)日：1990-05-15

申请号：US382412

申请日：1989-07-20

申请人： Akihiko Enomoto ,  Takashi Koga ,  Minoru Yoneda ,  Hiroshi Kobata

发明人： Akihiko Enomoto ,  Takashi Koga ,  Minoru Yoneda ,  Hiroshi Kobata

IPC分类号： G11B19/22 ,  H02P3/08 ,  H02P7/00

CPC分类号： H02P3/08 ,  G11B19/22 ,  H02P7/04

摘要： A DC motor is supplied, from a motor driver, with a brake voltage constituted by a forward drive voltage, a reverse drive voltage, and a stop voltage of a zero potential level. An operational current of the motor driver is supplied to a low-pass filter whose output is supplied to first and second sample and hold (S/H) circuits. The first S/H circuit performs its sampling operation after a minute period of time in which the brake voltage goes through a polarity inversion from the reverse drive voltage to the forward drive voltage. The second S/H circuit performs its sampling operation after a minute period of time in which the voltage applied is changed from the forward drive voltage to the reverse drive voltage. The outputs or sampled values of both S/H circuits are compared with each other by a comparator. When the sampled values equal each other, i.e., when the number of rotations of the motor becomes zero, the comparator outputs a coincidence pulse. This pulse is supplied to a stop detector. When detecting this coincidence pulse a predetermined number of times in a row, the stop detector determines that the number of rotations of the motor has become zero.

公开(公告)号：US4952883A

公开(公告)日：1990-08-28

申请号：US314118

申请日：1989-02-23

申请人： Akihiko Enomoto ,  Takashi Koga ,  Minoru Yoneda ,  Hiroshi Kobata

发明人： Akihiko Enomoto ,  Takashi Koga ,  Minoru Yoneda ,  Hiroshi Kobata

IPC分类号： H04N5/956 ,  H03D13/00 ,  H03L7/081 ,  H03L7/091 ,  H04L7/033 ,  H04N9/89 ,  H04N9/896

CPC分类号： H03L7/0812 ,  H03D13/00 ,  H03L7/091 ,  H04N9/896 ,  H04L7/0334

摘要： A phase detection circuit for detecting the phase shift of an input signal. An A/D converter converts the input signal into first, second and third digital data according to successive three sampling points. A first subtractor subtracts the third data from the second data to produce a first subtraction signal. A second subtractor subtracts the first data from the second data to produce a second subtraction signal. A third subtractor subtracts the second subtraction signal from the first subtraction signal to produce a signal representing the phase shift. An adder adds the first and second subtraction signals together to produce a signal representing the amplitude of the input signal. A converter converts the signal representing the phase shift into a signal representing the absolute value of the phase shift according to the signals representing the phase shift and the amplitude.

公开(公告)号：US4916542A

公开(公告)日：1990-04-10

申请号：US313899

申请日：1989-02-23

申请人： Minoru Yoneda ,  Akihiko Enomoto ,  Takashi Koga ,  Hiroshi Kobata

发明人： Minoru Yoneda ,  Akihiko Enomoto ,  Takashi Koga ,  Hiroshi Kobata

IPC分类号： H04N5/208 ,  H04N5/14 ,  H04N5/21

CPC分类号： H04N5/21 ,  H04N5/142

摘要： A circuit for adjusting a picture quality by processing a digital video signal. A digital filter receives the digital video signal and extracts a high-frequency component therefrom. A first waveform-shaping element wave-shapes the high-frequency component to provide a noise cancel signal for canceling the noise. A second waveform-shaping element wave-shapes the high-frequency component to provide a contour compensation signal for compensating a contour of a picture. An adder adds the digital video signal, the noise cancel signal and the contour compensation signal to provide a signal with adjusted picture quality.

公开(公告)号：US5099315A

公开(公告)日：1992-03-24

申请号：US575009

申请日：1990-08-30

申请人： Takashi Koga ,  Toshikazu Fujii

发明人： Takashi Koga ,  Toshikazu Fujii

IPC分类号： H03H15/00 ,  H04N9/78

CPC分类号： H04N9/78

摘要： A Y/C separation circuit for separating the Y and C components of a composite video signal having a horizontal scan period, which includes an input circuit for receiving the composite video signal, a first delay which receives the composite video signal and delays the composite video signal by an amount equal to an integer times the horizontal scan period, a second delay which receives the delayed output signal from the first delay and delays delayed output signal by an amount equal to an integral plus one times the horizontal scan period, a C component extraction circuit which receives the composite video signal and the output from the first and second delays and outputs a C component signal representing the C component of the composite video signal and a Y component extraction circuit which receives the composite video signal from the input circuit and the C component signal from the C component extraction circuit and generates a Y component signal representing the Y component of the composite video signal by subtracting the C component signal from the composite video signal.

公开(公告)号：US4573022A

公开(公告)日：1986-02-25

申请号：US681142

申请日：1984-12-13

申请人： Takashi Koga

发明人： Takashi Koga

IPC分类号： H01L29/72 ,  H03F1/08 ,  H03F1/48 ,  H03F3/45 ,  H03F3/14

CPC分类号： H03F3/45197 ,  H03F1/083 ,  H03F1/48 ,  H03F3/45098

摘要： A semiconductor integrated circuit comprises a differential pair of transistors, a pair of constant current source transistors, an emitter resistor connected between the emitters of the differential transistors, and a load resistor coupled to the collector of one of the differential transistors. Each of the differential transistors and constant current source transistors is a vertical PNP transistor. In the semiconductor integrated circuit, therefore, each vertical PNP transistor has its collector coupled with a parasitic diode having a relatively large junction capacitance. The parasitic diodes are reversely biased when the circuit is operative. In order to prevent the frequency characteristic from being deteriorated due to the junction capacitance of the parasitic diodes, a resistor circuit, which forms a differentiating circuit together with the emitter resistor and the parasitic diodes, is connected between the cathodes of these diodes and a power source, whereby the differentiating time constant of this differentiating circuit is so adjusted as to become substantially equal to the integrating time constant of an integrating circuit including the load resistor and the parasitic diode.

摘要翻译： 半导体集成电路包括差分对晶体管，一对恒流源晶体管，连接在差分晶体管的发射极之间的发射极电阻，以及耦合到差分晶体管之一的集电极的负载电阻。 差分晶体管和恒流源晶体管中的每一个是垂直PNP晶体管。 因此，在半导体集成电路中，每个垂直PNP晶体管的集电极与具有相对大的结电容的寄生二极管耦合。 当电路工作时，寄生二极管反向偏置。 为了防止频率特性由于寄生二极管的结电容而劣化，与发射极电阻和寄生二极管一起形成微分电路的电阻电路连接在这些二极管的阴极和电源 源极，由此使该微分电路的微分时间常数被调整成与包括负载电阻和寄生二极管的积分电路的积分时间常数大致相等。

公开(公告)号：US20120252941A1

公开(公告)日：2012-10-04

申请号：US13512077

申请日：2009-11-26

申请人： Shun Ibusuki ,  Takashi Koga ,  Akira Miyake ,  Masayuki Hayashi ,  Masaya Yoshida

发明人： Shun Ibusuki ,  Takashi Koga ,  Akira Miyake ,  Masayuki Hayashi ,  Masaya Yoshida

IPC分类号： C07D413/10 ,  C08L69/00 ,  C08K5/357

CPC分类号： C07D265/16 ,  C08K5/357

摘要： It is an object of the present invention to provide a bisbenzoxazinone compound which does not substantially contain an alkali metal salt, has high purity and provides a resin composition having excellent resistance to hydrolysis when it is contained in a resin, a production method thereof, and a resin composition comprising the compound.The present invention is a bisbenzoxazinone compound represented by the following formula (4): (R1 and R2 are each independently a hydrogen atom, hydroxyl group, alkyl group having 1 to 3 carbon atoms, or the like), and has (i) a purity of 98% or more, (ii) a content of a compound represented by the following formula (7) of less than 0.15 wt %: (iii) a maximum peak in the measurement of the light reflectance at a visible range of its powder at 380 to 480 nm and a maximum light reflectance of 100 to 120%, (iv) a metal sodium content of less than 50 ppm and (v) a YI value of −10 to 10.

摘要翻译： 本发明的目的是提供一种基本上不含碱金属盐的双苯并恶嗪酮化合物，其纯度高，并且在树脂中含有具有优异的耐水解性的树脂组合物，其制造方法和 包含该化合物的树脂组合物。 本发明是由下式（4）表示的双苯并恶嗪酮化合物：（R1和R2各自独立地为氢原子，羟基，具有1〜3个碳原子的烷基等），并且（i） 纯度为98％以上，（ii）由下式（7）表示的化合物的含量小于0.15重量％：（iii）在其粉末的可见光范围内的光反射率的测定中的最大峰值 380至480nm，最大光反射率为100至120％，（iv）金属钠含量小于50ppm，（v）YI值为-10至10。

公开(公告)号：US07148313B2

公开(公告)日：2006-12-12

申请号：US10885739

申请日：2004-07-08

申请人： Takashi Koga ,  Daisuke Takahashi ,  Mitsuhiro Takeo

发明人： Takashi Koga ,  Daisuke Takahashi ,  Mitsuhiro Takeo

IPC分类号： C08G63/00

CPC分类号： C08K5/103 ,  C08K5/0008 ,  C08K5/3437 ,  C08L69/00

摘要： A polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin (component A), 0.01 to 10 parts by weight of at least one ultraviolet light absorber (component B) selected from the group of a specific cyclic imino ester, and 0.01 to 1 part by weight of a fatty acid ester compound (component C) which is an ester of a polyhydric alcohol and an aliphatic carboxylic acid and has a molecular weight of 500 to 2,000 g/mol, as well as molded articles thereof.The polycarbonate resin composition provides molded articles having excellent transparency, color and resistance to ultraviolet radiation, is excellent in heat stability at the time of molding and releasability and fully suppresses the production of a deposit on a metal mold.

摘要翻译： 一种聚碳酸酯树脂组合物，其包含100重量份的聚碳酸酯树脂（组分A），0.01至10重量份的选自特定的环亚氨基酯的至少一种紫外线吸收剂（组分B）和0.01至1 重量份分子量为500〜2000g / mol的作为多元醇和脂肪族羧酸的酯的脂肪酸酯化合物（C成分）及其成型品。 聚碳酸酯树脂组合物提供具有优异的透明性，耐紫外线性，耐紫外线性的成型体，成型时的热稳定性和脱模性优异，完全抑制金属模具上的沉积物的制造。

公开(公告)号：US5109285A

公开(公告)日：1992-04-28

申请号：US372006

申请日：1989-06-27

申请人： Takashi Koga

发明人： Takashi Koga

IPC分类号： G11B20/02 ,  G11B20/06 ,  H04N5/953

CPC分类号： H04N5/953

摘要： In a video tape recorder and reproduction apparatus, a reproduction circuit includes a switcher for generating a composite video signal composed of a multiplicity of synchronization signals from two or more video heads, a synchronization signal separator for receiving the composite video signal and separating from the composite video signal the synchronization signal, an error detection circuit for receiving the synchronization signal, detecting an error in the synchronization signal from an average period of the synchronization signals, and outputting an error signal representative of the error, a hold circuit for receiving the error signal and generating a correction signal having a constant value for each average period of the synchronization signals, with a value of the correction signal being adjusted by being added with the error signal and holding the adjusted value for each successive period of the synchronization signals and a delay circuit for receiving the composite video signal and correcting the time base of the composite video signal in response to the correction signal.

摘要翻译： 在磁带录像机和重放装置中，再现电路包括：切换器，用于产生由来自两个或多个视频头的多个同步信号组成的复合视频信号;同步信号分离器，用于接收复合视频信号并与复合视频信号分离 视频信号同步信号，用于接收同步信号的误差检测电路，从同步信号的平均周期检测同步信号中的误差，并输出表示误差的误差信号，用于接收误差信号的保持电路 并产生对于同步信号的每个平均周期具有恒定值的校正信号，校正信号的值通过加上误差信号进行调整并保持每个连续周期的同步信号的调整值和延迟 用于接收复合视频的电路 并且根据校正信号校正复合视频信号的时基。

公开(公告)号：US07241825B2

公开(公告)日：2007-07-10

申请号：US10483126

申请日：2003-05-01

申请人： Takashi Koga ,  Mitsuhiro Takeo ,  Daisuke Takahashi

发明人： Takashi Koga ,  Mitsuhiro Takeo ,  Daisuke Takahashi

IPC分类号： C08K5/103 ,  C08L69/00 ,  B32B27/18

CPC分类号： C08K5/103 ,  B29C45/372 ,  Y10T428/31507 ,  C08L69/00

摘要： The object of the present invention is to provide a polycarbonate resin composition which has excellent transparency and durability against molding heat, which gives a molded article having an excellent mold release property, reduced strains, improved cracking resistance and, preferably, weatherability, and which is particularly suitable for a transparent member for a vehicle, pellets thereof and a molded article thereof, and the present invention provides a polycarbonate resin composition obtained by blending 100 parts by weight of a polycarbonate resin (Component A) and 0.005 to 2 parts by weight of a full ester (Component B) from an aliphatic polyhydric alcohol having 4 to 8 hydroxyl groups and 5 to 30 carbon atoms and an aliphatic carboxylic acid having 10 to 22 carbon atoms, said Component B having a 5% weight loss temperature, measured by TGA (thermogravimetric analysis), of 250 to 360° C. and having an acid value of 4 to 20, pellets thereof and a molded article thereof.

摘要翻译： 本发明的目的是提供一种对模塑热具有优异的透明性和耐久性的聚碳酸酯树脂组合物，其具有优异的脱模性，降低的应变，改进的抗开裂性，优选耐候性的成型体， 特别适用于车辆的透明构件，其颗粒及其成型体，本发明提供一种聚碳酸酯树脂组合物，其通过将100重量份的聚碳酸酯树脂（组分A）和0.005〜2重量份的 由具有4至8个羟基和5至30个碳原子的脂族多元醇和10-22个碳原子的脂族羧酸的全酯（组分B），所述组分B具有5重量％的重量损失温度，通过TGA （热重分析）为250〜360℃，酸值为4〜20，其粒料及其成型体。

公开(公告)号：US20050215750A1

公开(公告)日：2005-09-29

申请号：US10885739

申请日：2004-07-08

申请人： Takashi Koga ,  Daisuke Takahashi ,  Mitsuhiro Takeo

发明人： Takashi Koga ,  Daisuke Takahashi ,  Mitsuhiro Takeo

IPC分类号： C08G64/00 ,  C08K5/00 ,  C08K5/103 ,  C08K5/3437

CPC分类号： C08K5/103 ,  C08K5/0008 ,  C08K5/3437 ,  C08L69/00

摘要： A polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin (component A), 0.01 to 10 parts by weight of at least one ultraviolet light absorber (component B) selected from the group of a specific cyclic imino ester, and 0.01 to 1 part by weight of a fatty acid ester compound (component C) which is an ester of a polyhydric alcohol and an aliphatic carboxylic acid and has a molecular weight of 500 to 2,000 g/mol, as well as molded articles thereof. The polycarbonate resin composition provides molded articles having excellent transparency, color and resistance to ultraviolet radiation, is excellent in heat stability at the time of molding and releasability and fully suppresses the production of a deposit on a metal mold.

摘要翻译： 一种聚碳酸酯树脂组合物，其包含100重量份的聚碳酸酯树脂（组分A），0.01至10重量份的选自特定的环亚氨基酯的至少一种紫外光吸收剂（组分B）和0.01至1 重量份分子量为500〜2000g / mol的作为多元醇和脂肪族羧酸的酯的脂肪酸酯化合物（C成分）及其成型品。 聚碳酸酯树脂组合物提供具有优异的透明性，耐紫外线性，耐紫外线性的成型体，成型时的热稳定性和脱模性优异，完全抑制金属模具上的沉积物的制造。