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1. 发明授权

US5488552A Inverter power supply 失效
标题翻译：逆变电源
公开(公告)号：US5488552A
公开(公告)日：1996-01-30
申请号：US132454
申请日：1993-10-06
申请人： Hiroshi Sakamoto , Hideki Tamura , Kaoru Furukawa
发明人： Hiroshi Sakamoto , Hideki Tamura , Kaoru Furukawa
IPC分类号： H02M3/28 , H02M3/335 , H02M3/338 , H03K3/64 , H03K17/732
CPC分类号： H02M3/335 , Y02B70/1433
摘要： An inverter power supply operating at a high efficiency to provide an AC voltage to a load. The power source includes a DC voltage source and an output transformer with a primary winding, secondary winding, and a feedback winding. An FET is connected in series with the primary winding across the DC voltage source. The primary winding is connected to a capacitor to form a L-C resonant circuit which, in response to the switching of FET, provides across the primary winding an oscillation voltage to be applied through the secondary winding to drive a load, while inducing a feedback voltage across the feedback winding. The oscillation voltage is allowed to go negative at a point between FET and the primary winding. A biasing capacitor is connected to apply an offset voltage which is additive to the feedback voltage so as to give a bias voltage to FET. The power supply is characterized to include a level detector which issues a zero voltage signal when the oscillation voltage is detected to lower to at least zero level, and to include a pulse generator which, in response to the zero voltage signal, produces a pulse of a predetermined pulse-width which overrides the feedback voltage in such a manner as to enable FET to turn on for a ON-period determined by the pulse-width only after the oscillation voltage is lowered to at least zero level, whereby avoiding FET from flowing a current while the oscillation voltage is still positive and therefore reducing a switching loss.
摘要翻译：逆变器电源以高效率工作，向负载提供交流电压。电源包括直流电压源和具有初级绕组，次级绕组和反馈绕组的输出变压器。一个FET与直流电压源上的初级绕组串联连接。初级绕组连接到电容器以形成LC谐振电路，其响应于FET的开关，在初级绕组两端提供要通过次级绕组施加的振荡电压以驱动负载，同时产生跨越的反馈电压反馈绕组。在FET和初级绕组之间的点，振荡电压被允许变为负值。连接偏置电容器以施加与反馈电压相加的偏移电压，以向FET提供偏置电压。电源的特征在于包括电平检测器，当检测到振荡电压降至至少零电平时发出零电压信号，并且包括脉冲发生器，响应于零电压信号，脉冲发生器产生脉冲预定的脉冲宽度，其仅在振荡电压降低到至少零电平之后，以使得FET能够导通由脉冲宽度确定的导通周期的方式来覆盖反馈电压，由此避免FET流动一个电流，同时振荡电压仍然是正的，因此降低了开关损耗。

2. 发明授权

US5333104A Inverter power source 失效
标题翻译：变频器电源
公开(公告)号：US5333104A
公开(公告)日：1994-07-26
申请号：US63327
申请日：1993-05-19
申请人： Hideki Tamura , Kaoru Furukawa
发明人： Hideki Tamura , Kaoru Furukawa
IPC分类号： H02M3/338 , H02M3/335
CPC分类号： H02M3/338
摘要： An inverter power supply includes a DC supply providing a DC voltage from an AC mains, a transformer having primary, secondary, and feedback windings, and a self-excited oscillator energized by the DC supply to generate a high frequency voltage across the primary winding and induces across the secondary winding an output AC voltage for driving a load. The oscillator comprises an FET connected in series with the primary winding. A biasing capacitor is connected in series with the feedback winding across a source-gate path of FET for providing an offset voltage which is additive to a feedback voltage at the feedback winding to give a bias applied to a gate of FET so as to alternately turn on and off FET for self-excited oscillation. Also included is a bias stabilizing circuit which lowers the offset voltage by discharging the biasing capacitor through FET being turned on, thereby driving FET turned on only for substantially a constant ON-time period irrespective of an increase in the DC voltage within a limited range. The power supply is characterized to include a compensation circuit which produces a negative voltage to be superimposed to the offset voltage of the biasing capacitor, thereby enabling to lower the offset voltage negative even when the DC voltage increases over the limited range, thereby keeping the ON-time period of FET substantially constant over a wide range of variations in the DC voltage.
摘要翻译：逆变器电源包括DC电源，其提供来自AC电源的DC电压，具有初级，次级和反馈绕组的变压器以及由DC电源激励的自激振荡器以在初级绕组上产生高频电压，在次级绕组上产生用于驱动负载的输出AC电压。振荡器包括与初级绕组串联连接的FET。偏置电容器与跨越FET的源极栅极路径的反馈绕组串联连接，用于提供偏置电压，该偏移电压与反馈绕组上的反馈电压相加，以产生施加到FET的栅极的偏置，以便交替地转向开关FET用于自激振荡。还包括偏置稳定电路，其通过将导通的FET放电而使偏置电容器放电来降低偏置电压，从而驱动FET仅导通大致恒定的导通时间周期，而不管在有限范围内的直流电压的增加。电源的特征在于包括补偿电路，其产生与偏置电容器的偏移电压重叠的负电压，从而即使当直流电压在有限范围内增加时也能够将偏移电压降低，从而保持ON 在直流电压的宽范围变化中，FET的时间周期基本上恒定。

3. 发明授权

US4633159A Charging circuit 失效
标题翻译：充电电路
公开(公告)号：US4633159A
公开(公告)日：1986-12-30
申请号：US726780
申请日：1985-04-24
申请人： Hironobu Sakaue , Kaoru Furukawa
发明人： Hironobu Sakaue , Kaoru Furukawa
IPC分类号： H02J7/02 , H02M3/156 , H02J7/10 , H02M5/458
CPC分类号： H02J7/022 , H02M3/1563
摘要： A charging circuit comprises a bypassing transistor connected at the collector and base respectively to the base and emitter of a switching transistor connected to the primary winding of a transformer for inducing a charging current in the secondary winding of the transformer forming a part of a secondary battery charging path, and a current detecting resistance and constant voltage element connected between the base and emitter of the bypassing transistor so that, when the peak of a collector current of the switching transistor exceeds a predetermined level, the bypassing transistor is conducted to bypass and reduce the base current of the switching transistor, the collector current of the switching transistor is thereby reduced, and the charging current substantially constant at the average value is generated regardless of the voltage of a selective one of different power sources.
摘要翻译：充电电路包括分别连接在集电极和基极上的旁路晶体管，连接到变压器的初级绕组的开关晶体管的基极和发射极，用于在变压器的次级绕组中形成充电电流，形成二次电池的一部分充电路径以及连接在旁路晶体管的基极和发射极之间的电流检测电阻和恒压元件，使得当开关晶体管的集电极电流的峰值超过预定电平时，旁路晶体管被导通以绕过和减小开关晶体管的基极电流，开关晶体管的集电极电流因此减小，并且不管不同选择的电源之一的电压如何，都产生基本上恒定在平均值的充电电流。

4. 发明授权

US4710695A Power supply circuit 失效
标题翻译：电源电路
公开(公告)号：US4710695A
公开(公告)日：1987-12-01
申请号：US914040
申请日：1986-10-01
申请人： Satoshi Yamada , Kaoru Furukawa
发明人： Satoshi Yamada , Kaoru Furukawa
IPC分类号： H02M3/338 , H02J7/02 , H02J7/10 , H02M3/335
CPC分类号： H02M3/335 , H02J7/022
摘要： A transformer employed in a power supply circuit of a ringing choke converter type comprises two feedback windings which share the current to be supplied to the base of a switching transistor for blocking oscillation. By virtue of the provision of the two feedback windings, a speedup capacitor for delivering a trigger current to the switching transistor is allowed to have less capacity, while the amount of heat generation of a resistor for regulating the trigger current can be restrained. These advantageous features of the present invention produces the effect that the bulk and weight of the capacitor and the resistor can be reduced, which leads to curtailing of the cost of the components as well as enhancing of the reliability of the circuit. The effect is more appreciable when a higher output is required.
摘要翻译：用于振铃电抗器转换器类型的电源电路中的变压器包括两个反馈绕组，它们共享用于阻断振荡的开关晶体管的基极的电流。通过提供两个反馈绕组，允许用于将触发电流传送到开关晶体管的加速电容器具有较小的容量，而可以抑制用于调节触发电流的电阻器的发热量。本发明的这些有利特征产生了电容器和电阻器的体积和重量可以减小的效果，这导致部件成本的削减以及电路的可靠性的提高。当需要更高的产量时，效果更明显。

5. 发明授权

US4120928A Production of biaxially stretched film of polyamide blend 失效
标题翻译：生产聚酰胺共混物的双轴拉伸薄膜
公开(公告)号：US4120928A
公开(公告)日：1978-10-17
申请号：US788047
申请日：1977-04-15
申请人： Kaoru Furukawa , Koichi Matsunami , Toshihiko Ota , Tetsushi Murakami , Hiroshi Nagai , Kazuo Tamaki
发明人： Kaoru Furukawa , Koichi Matsunami , Toshihiko Ota , Tetsushi Murakami , Hiroshi Nagai , Kazuo Tamaki
IPC分类号： B29C47/00 , B29D7/24
CPC分类号： B29C47/0004 , B29C47/0021 , B29C47/0057 , B29K2077/00 , B29K2995/0072 , B29L2007/00
摘要： A process for preparing a biaxially stretched film of a polyamide blend, which comprises (1) melt extruding a polyamide blend to make an unstretched film and (2) stretching the unstretched film first in the machine direction and then in the transverse direction, or (2') stretching the unstretched film first to make a uniaxially stretched film having a plane orientation index of about 0.6 to 1.7 and then stretching the uniaxially stretched film in a direction substantially at a right angle to the direction at the previous stretching, said polyamide blend comprising 97 to 80% by weight of an .alpha.-type aliphatic polyamide (Component A) and 3 to 20% by weight of at least one polyamide (Component B) selected from the group consisting of (i) an .alpha.-type aliphatic polyamide different from the Component A, (ii) a .gamma.-type aliphatic polyamide, (iii) a non-crystalline aliphatic polyamide, and (iv) a ring-containing polyamide which contains in the molecule 0 to 50 mol % of repeating units comprising a xylylenediamine residue.
摘要翻译：一种制备聚酰胺共混物的双轴拉伸膜的方法，其包括（1）熔融挤出聚酰胺共混物以制备未拉伸膜和（2）首先在纵向然后沿横向拉伸未拉伸膜，或（ 2'）首先拉伸未拉伸薄膜以制备平面取向指数为约0.6至1.7的单轴拉伸薄膜，然后在与先前拉伸方向基本成直角的方向上拉伸单轴拉伸薄膜，所述聚酰胺共混物包含97至80重量％的α型脂族聚酰胺（组分A）和3至20重量％的至少一种聚酰胺（组分B），其选自（i）不同于（ii）γ型脂肪族聚酰胺，（iii）非结晶性脂肪族聚酰胺，和（iv）含有分子内的聚酰胺，其含有0〜50摩尔％的重复单元包括苯二甲胺残基。

6. 发明授权

US4668901A Quick charging circuit 失效
标题翻译：快速充电电路
公开(公告)号：US4668901A
公开(公告)日：1987-05-26
申请号：US724574
申请日：1985-04-18
申请人： Kaoru Furukawa
发明人： Kaoru Furukawa
IPC分类号： H02J7/10 , H02J7/00 , H02J7/04
CPC分类号： H02J7/0077
摘要： A quick charging circuit comprises a charging current generating circuit including a rectifier connected to an A.C. power source and a high frequency inverter connected to the rectifier for supplying a charging current to a storage battery, a circuit for detecting a voltage across the battery, a timer circuit operated by an output of the battery voltage detecting circuit, and means for reducing the charging current in response to a time limit output of the timer circuit, wherein an integrating circuit is provided with respect to the battery voltage detecting circuit so that any influence of high frequency components in the battery voltage can be removed, whereby the timer circuit can be operated accurately with a set voltage to reduce the charging current and to reliably prevent the battery from being subjected to any overcharging and internal pressure rise.
摘要翻译：快速充电电路包括充电电流产生电路，其包括连接到AC电源的整流器和连接到整流器的高频逆变器，用于向蓄电池提供充电电流，用于检测电池两端的电压的电路，定时器由电池电压检测电路的输出操作的电路，以及响应于定时电路的时间限制输出而减小充电电流的装置，其中针对电池电压检测电路提供积分电路，使得任何影响可以去除电池电压中的高频分量，由此定时器电路可以以设定的电压精确地操作，以减少充电电流并且可靠地防止电池遭受任何过充电和内部压力升高。

7. 发明授权

US4370606A Charging apparatus 失效
标题翻译：充电设备
公开(公告)号：US4370606A
公开(公告)日：1983-01-25
申请号：US196014
申请日：1980-10-10
申请人： Hiromi Kakumoto , Kaoru Furukawa
发明人： Hiromi Kakumoto , Kaoru Furukawa
IPC分类号： H02J7/10 , H01M10/44 , H02J7/00
CPC分类号： H01M10/443 , H02J7/0091
摘要： A diode is disposed in the vicinity of a rechargeable battery. A current is applied to the diode from a current generating circuit. The current generating circuit comprises a thermistor which is responsive to the ambient temperature, so that a current associated with the ambient temperature is applied from the current generating circuit to the diode. The diode gives rise to a forward voltage drop, which is changeable as a function of the battery temperature. Accordingly, the forward voltage drop across the diode is changeable as a function of the ambient temperature and the battery temperature. The forward voltage drop across the diode is amplified to be used as a reference voltage. On the other hand, the rechargeable battery is supplied with a charging current from a power supply through a thyristor. The gate electrode of the thyristor is connected to receive the reference voltage and the cathode of the thyristor is connected to the battery. Accordingly, the thyristor is turned off if and when the difference between the reference voltage and the battery voltage becomes smaller than the switching voltage of the thyristor.
摘要翻译：二极管设置在可再充电电池的附近。电流从电流发生电路施加到二极管。电流产生电路包括响应于环境温度的热敏电阻，使得与环境温度相关联的电流从电流发生电路施加到二极管。二极管产生正向电压降，其随电池温度而变化。因此，二极管两端的正向压降可根据环境温度和电池温度而变化。二极管两端的正向压降被放大，用作参考电压。另一方面，可充电电池从电源通过晶闸管提供充电电流。晶闸管的栅电极被连接以接收参考电压，并且晶闸管的阴极连接到电池。因此，当参考电压和电池电压之间的差变得小于晶闸管的开关电压时，晶闸管被截止。

8. 发明授权

US3946089A Block copolymer of polyamide and polyether, and its preparation and use 失效
标题翻译：聚酰胺和聚醚的嵌段共聚物及其制备和用途
公开(公告)号：US3946089A
公开(公告)日：1976-03-23
申请号：US439987
申请日：1974-02-06
申请人： Kaoru Furukawa , Chiaki Tsukamoto , Hiroshi Nagai , Koichi Matsunami , Hikoichi Nagano
发明人： Kaoru Furukawa , Chiaki Tsukamoto , Hiroshi Nagai , Koichi Matsunami , Hikoichi Nagano
IPC分类号： C08G69/00 , B32B27/06 , C08G69/04 , C08G69/40 , C08L77/00 , D01F6/90
CPC分类号： C08G69/40 , B32B27/06 , Y10T428/2969
摘要： A block copolymer of 99.8 to 90 % by weight of a polyamide segment and 0.2 to 10 % by weight of a polyether segment dispersed in an island state of not more than about 10 .mu. in particle size, the polyamide segment comprising at least one diamine component containing 100 to 50 mol % (preferably 100 to 70 mol %) of m-xylylenediamine or its mixture with p-xylylenediamine and at least one dicarboxylic acid component containing 100 to 50 mol % (preferably 100 to 70 mol %) of at least one aliphatic dicarboxylic acid having 6 to 12 carbon atoms, the polyether segment comprising at least one polyether having a molecular weight of 2,000 to 20,000 and an amino group or a carboxyl group at at least one terminal position thereof and the block copolymer having a scattering index of not less than 1.
摘要翻译： 99.8-90％重量的聚酰胺链段和0.2-10％重量的分散在岛状态的不超过约10微米粒径的聚醚链段的嵌段共聚物，聚酰胺链段包含至少一种二胺组分含有100〜50摩尔％（优选为100〜70摩尔％）的间苯二甲胺或其与对苯二甲胺的混合物和至少一种含有100〜50摩尔％（优选为100〜70摩尔％）的二羧酸成分的至少一种具有6至12个碳原子的脂族二羧酸，所述聚醚部分包含至少一种分子量为2,000至20,000的聚醚和至少一个末端的氨基或羧基，所述嵌段共聚物的散射指数为不低于1。

9. 发明授权

US4859931A Electronic detector with capacitor sensor and magnetic field sensor for locating an object behind a wall surface 失效
标题翻译：具有电容传感器和磁场传感器的电子探测器，用于定位墙壁后面的物体
公开(公告)号：US4859931A
公开(公告)日：1989-08-22
申请号：US130614
申请日：1987-12-09
申请人： Mikihiro Yamashita , Kaoru Furukawa
发明人： Mikihiro Yamashita , Kaoru Furukawa
IPC分类号： G01V3/08 , G01V3/10
CPC分类号： G01V3/088 , G01V3/105
摘要： An electronic detector for locating an object behind a wall surface has a metallic object detecting section and a general object detecting section which are energized by a common battery to be operative simultaneously. The metallic object detecting section includes a magnetic field sensor for detecting any change in a magnetic field developed therearound and providing a second electric signal indicative of that change. The general object detecting section includes a capacitor sensor for sensing any change in the capacitance of the wall and providing a first electric signal indicative of that change. The first and second electric signals are applied respectively to first and second control circuits where they are analyzed to provide first and second control outputs when their levels reach first and second reference levels, respectively. Upon receiving the first and second control output, first and second indicators turn on for indicating the detection results. Thus, both of the first and second indicators will turn on when there is detected a metallic object behind the wall surface and only the first indicator will turn on when there is deteced a non-metallic object behind the wall surface, whereby the user can easily distinguish the metallic object and the non-metallic object detected.
摘要翻译：用于将物体定位在墙壁表面后方的电子检测器具有金属物体检测部分和一般物体检测部分，它们由公共电池供电以同时操作。金属物体检测部分包括用于检测其周围产生的磁场的任何变化的磁场传感器，并提供指示该变化的第二电信号。一般物体检测部分包括用于感测壁的电容的任何变化并提供指示该变化的第一电信号的电容器传感器。第一和第二电信号被分别施加到第一和第二控制电路，在它们被分析的时候，它们分别在它们的电平达到第一和第二参考电平时提供第一和第二控制输出。在接收到第一和第二控制输出时，第一和第二指示灯打开以指示检测结果。因此，当检测到壁表面后面的金属物体时，第一指示器和第二指示器都将打开，并且当检测到壁表面后面的非金属物体时仅第一指示器将接通，由此用户可以容易地区分被检测的金属物体和非金属物体。

10. 发明授权

US09711277B2 Non-contact power supply system 有权
公开(公告)号：US09711277B2
公开(公告)日：2017-07-18
申请号：US14232505
申请日：2012-04-17
申请人： Kiyoshi Ogasawara , Kaoru Furukawa , Toshihiro Akiyama
发明人： Kiyoshi Ogasawara , Kaoru Furukawa , Toshihiro Akiyama
IPC分类号： H01F27/42 , H01F37/00 , H01F38/00 , H01F38/14 , H01M10/46 , H02J5/00 , H02J7/00 , H04B5/00 , H02J7/02
CPC分类号： H01F38/14 , H01M10/46 , H02J5/005 , H02J7/0044 , H02J7/025 , H02J50/12 , H02J50/40 , H04B5/0037
摘要： A non-contact power supply system includes a power supply device and a power reception device. The power supply device includes primary coils arranged on a power supply surface and configured to be excited at an operational frequency. The power reception device includes a secondary coil configured to induce current using resonance phenomenon based on alternating flux from the primary coils when arranged on the power supply surface. The operational frequency that excites the primary coil is set at or in the proximity of a resonance frequency of a resonance system formed when the secondary coil is located at an intermediate position between two of the primary coils that are adjacent to each other.

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