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1. 发明申请

US20070077413A1 Low dielectric loss tangent-resin varnish, prepreg, laminated sheet, and printed wiring board using the varnish 失效
标题翻译：低介电损耗切线树脂清漆，预浸料，层压板和使用清漆的印刷线路板
公开(公告)号：US20070077413A1
公开(公告)日：2007-04-05
申请号：US11529661
申请日：2006-09-29
申请人： Satoru Amou , Haruo Akahoshi , Yoshihiro Nakamura , Nobuyuki Minami , Yasuhiro Murai
发明人： Satoru Amou , Haruo Akahoshi , Yoshihiro Nakamura , Nobuyuki Minami , Yasuhiro Murai
IPC分类号： B32B5/16 , C08K5/34
CPC分类号： B32B5/26 , B32B5/022 , B32B15/14 , B32B15/20 , B32B2255/02 , B32B2262/02 , B32B2262/10 , B32B2307/3065 , C08J5/24 , C08J2371/12 , C08K3/36 , C08K5/0066 , H05K1/0373 , H05K3/4626 , H05K2201/012 , H05K2201/0133 , H05K2201/0209 , Y10T428/25 , Y10T428/259
摘要： There is provided a varnish of a low dielectric loss tangent resin composition which is low in viscosity and excellent in storage stability. The varnish of a low dielectric loss tangent resin composition contains a thermosetting monomer (A) having a weight average molecular weight of not more than 1,000, a high polymer (B) having a weight average molecular weight of not less than 5,000, a halogen flame-retardant agent (C), a silicon dioxide filler (D), and an organic solvent (E). The average particle diameter of each the components (C) and (D) is in the range of 0.2 to 3 μm.
摘要翻译：提供了一种低介电损耗角正切树脂组合物的清漆，其粘度低，储存稳定性优异。低介电损耗角正切树脂组合物的清漆含有重均分子量不大于1000的热固性单体（A），重均分子量不小于5,000的高聚物（B），卤素火焰缓冲剂（C），二氧化硅填料（D）和有机溶剂（E）。各成分（C）和（D）的平均粒径为0.2〜3μm的范围。

2. 发明授权

US5909107A Step up switching power unit and filter circuit 有权
标题翻译：升压开关电源单元和滤波电路
公开(公告)号：US5909107A
公开(公告)日：1999-06-01
申请号：US169923
申请日：1998-10-10
申请人： Kenichi Aonuma , Yasuhiro Murai
发明人： Kenichi Aonuma , Yasuhiro Murai
IPC分类号： H02M1/34 , H02M3/155 , H03K17/0814 , G05F1/10 , H02J1/02
CPC分类号： H02M1/34 , H02M3/155 , H03K17/0814 , H02M2001/346 , Y02B70/1491
摘要： A switching power source device in which recovery current can be decreased. The power source device includes a magnetic element connected one of terminals of a power source section, a switch having one end connected with the magnetic element and the other end connected with the other terminal of the power source section, a smoothing capacitor connected between the magnetic element and the other terminal of the power source section, and a diode connected between the magnetic element and the smoothing capacitor with forward direction directed to pass current from the power source section through the magnetic element to the smoothing capacitor. A second magnetic element is provided in a path of recovery current which flows during a closing operation of the switch from the diode to the switch, whereby the second capacitor is charged by current from the first magnetic element during an open state of the switch and a resonance circuit is formed between the first magnetic element and the diode through the second magnetic element, the switch and the second capacitor to pass discharge current from the second capacitor.
摘要翻译：一种能够降低恢复电流的开关电源装置。电源装置包括连接在电源部的端子之间的磁性元件，具有与磁性元件连接的一端的开关和与电源部的另一端连接的开关，连接在磁性部件之间的平滑电容器元件和电源部分的另一个端子，以及连接在磁性元件和平滑电容器之间的二极管，其正向被引导以将电流从电源部分通过磁性元件传递到平滑电容器。第二磁性元件设置在恢复电流的路径中，该恢复电流在开关从二极管闭合操作期间流动到开关，由此在开关的打开状态期间第二电容器被来自第一磁性元件的电流充电，通过第二磁性元件，开关和第二电容器在第一磁性元件和二极管之间形成谐振电路，以使来自第二电容器的放电电流。

3. 发明授权

US06567285B2 Switching power supply unit 有权
标题翻译：开关电源单元
公开(公告)号：US06567285B2
公开(公告)日：2003-05-20
申请号：US10001837
申请日：2001-11-23
申请人： Hisanori Cho , Masahiko Hirokawa , Yasuhiro Murai
发明人： Hisanori Cho , Masahiko Hirokawa , Yasuhiro Murai
IPC分类号： H02M75387
CPC分类号： H02M3/3376 , H02M2007/4818 , Y02B70/1441
摘要： A switching power supply unit capable of adjusting the inductance value of a resonance circuit and outputting a rated output voltage regardless of any fluctuation in an input voltage and a load. The switching power supply unit comprises first to fourth switching elements 11-14 connected with each other in a bridge connection. A diode 21-24 having a reverse polarity and a capacitor 31-34 are disposed between main electrodes of each of the switching elements. A first winding 53 of a transformer 51 is connected between first and second connection points 91, 92. An inductor 41 is inserted into a path ranging from the first connection point 91 through the first winding 53 to the second connection point 92, and forms a resonance circuit in conjunction with the capacitors 31-34. The inductance value L2 of the inductor 41 is arranged to provide the output voltage Vout of an output circuit 60 greater than or equal to the rated output voltage Vout (nom), in a minimum input voltage Vin (mm), a maximum output current Iout (max), and a switching phase-difference f of zero.
摘要翻译：一种开关电源单元，其能够调节谐振电路的电感值并输出额定输出电压，而与输入电压和负载中的任何波动无关。开关电源单元包括以桥连接方式彼此连接的第一至第四开关元件11-14。具有反极性的二极管21-24和电容器31-34设置在每个开关元件的主电极之间。变压器51的第一绕组53连接在第一和第二连接点91,92之间。电感器41插入到从第一连接点91到第一绕组53到第二连接点92的路径中，并且形成谐振电路与电容器31-34结合。电感器41的电感值L2被布置成以最小输入电压Vin（mm），最大输出电流Iout（mm）提供大于或等于额定输出电压Vout（nom）的输出电路60的输出电压Vout （最大），开关相位差f为零。

4. 发明申请

US20070025125A1 Switching power supply unit 有权
标题翻译：开关电源单元
公开(公告)号：US20070025125A1
公开(公告)日：2007-02-01
申请号：US11495621
申请日：2006-07-31
申请人： Wataru Nakahori , Yasuhiro Murai
发明人： Wataru Nakahori , Yasuhiro Murai
IPC分类号： H02H7/122
CPC分类号： H02M3/3376 , H02M1/32 , H02M1/34 , H02M3/33584 , H02M3/3378 , H02M2001/0058 , H02M2001/342 , Y02B70/1491
摘要： The present invention provides a switching power supply unit capable of suppressing a surge voltage generated in a rectifier element more effectively. A first resonance circuit is constructed by capacitors in a surge voltage suppressing circuit and an inductor, and resonance time of the first resonance circuit is set to be longer than recovery time of a diode in a rectifier circuit. According to at least one of a DC input voltage and an output current, either a first bridge circuit or a second bridge circuit is selectively allowed to perform switching operation. At the time of forward-direction operation, the first resonance circuit is formed by the capacitors in the surge voltage circuit and the inductor on the high voltage side. At the time of reverse-direction operation, a second resonance circuit is formed by the capacitors and an inductor on the low voltage side.
摘要翻译：本发明提供一种能够更有效地抑制整流元件中产生的浪涌电压的开关电源单元。第一谐振电路由浪涌电压抑制电路和电感器中的电容器构成，第一谐振电路的谐振时间设定为比整流电路中的二极管的恢复时间长。根据DC输入电压和输出电流中的至少一个，选择性地允许第一桥式电路或第二桥式电路进行开关动作。在正向操作时，第一谐振电路由浪涌电压电路中的电容器和高压侧的电感器形成。在反向操作时，电容器和低压侧的电感器形成第二谐振电路。

5. 发明授权

US06598453B2 Tooth rolling flat dies and method for forming teeth 有权
标题翻译：牙辊平面模具和牙齿形成方法
公开(公告)号：US06598453B2
公开(公告)日：2003-07-29
申请号：US09971043
申请日：2001-10-05
申请人： Yasuhiro Murai , Takahiro Kumagai , Soiti Kakutani , Masaru Sumitani
发明人： Yasuhiro Murai , Takahiro Kumagai , Soiti Kakutani , Masaru Sumitani
IPC分类号： B21H504
CPC分类号： B21H5/027 , B21H3/06
摘要： A tooth rolling flat die and a method for forming a tooth are provided. The die has the same service life as those of the conventional tooth rolling flat dies using oil coolant even if conducted by semi-dry forming. A first substantially quarter length portion of the leading teeth section of the die has a first surface roughness Rz of maximum height ranging from 20 to 35 &mgr;m, and a second substantially quarter length portion of the leading teeth section of the die has a second surface roughness Rz of maximum height ranging from 5 to 20 &mgr;m. The die is adapted for semi-dry forming the tooth.
摘要翻译：提供了一种牙齿平坦模具和一种形成牙齿的方法。即使通过半干法成形，也可以使用与使用油冷却剂的常规的滚动滚轧模具相同的使用寿命。模具的引导齿部分的第一基本上四分之一长度的部分具有最大高度范围为20至35μm的第一表面粗糙度Rz，并且模具的引导齿部分的第二基本上四分之一长度的部分具有第二表面粗糙度 Rz最大高度在5到20 mum之间。模具适用于半干式成型牙齿。

6. 发明授权

US07313003B2 Switching power supply unit 有权
公开(公告)号：US07313003B2
公开(公告)日：2007-12-25
申请号：US11495621
申请日：2006-07-31
申请人： Wataru Nakahori , Yasuhiro Murai
发明人： Wataru Nakahori , Yasuhiro Murai
IPC分类号： H02M3/335 , H02H7/122
CPC分类号： H02M3/3376 , H02M1/32 , H02M1/34 , H02M3/33584 , H02M3/3378 , H02M2001/0058 , H02M2001/342 , Y02B70/1491
摘要： The present invention provides a switching power supply unit capable of suppressing a surge voltage generated in a rectifier element more effectively. A first resonance circuit is constructed by capacitors in a surge voltage suppressing circuit and an inductor, and resonance time of the first resonance circuit is set to be longer than recovery time of a diode in a rectifier circuit. According to at least one of a DC input voltage and an output current, either a first bridge circuit or a second bridge circuit is selectively allowed to perform switching operation. At the time of forward-direction operation, the first resonance circuit is formed by the capacitors in the surge voltage circuit and the inductor on the high voltage side. At the time of reverse-direction operation, a second resonance circuit is formed by the capacitors and an inductor on the low voltage side.

7. 发明授权

US06532160B2 Switching power supply 有权
公开(公告)号：US06532160B2
公开(公告)日：2003-03-11
申请号：US09885419
申请日：2002-01-03
申请人： Masahiko Hirokawa , Yasuhiro Murai , Tomomi Yamada
发明人： Masahiko Hirokawa , Yasuhiro Murai , Tomomi Yamada
IPC分类号： H02H7125
CPC分类号： H02M1/34 , H02M3/28 , H02M3/335 , H02M2001/346 , Y02B70/1491
摘要： A switching power supply comprises a transformer 3, a switching circuit 1, an output rectifier circuit, an output smoothing circuit, and a snubber circuit. A snubber capacitor 17 has one terminal connected to the one terminal of a snubber diode 19. The other end of the snubber capacitor is led to an output winding 4 of the transformer, while the other terminal of the snubber diode is led to the other of the electrode of an output rectifier diode 7. A snubber inductor 23 has one end connected to the connecting point of the snubber capacitor and the snubber diode, and the other end is. connected to the input side of the output smoothing circuit. The polarity of the diode is arranged to establish a charging loop circulating through the snubber diode, the snubber capacitor and the output winding of the transformer, so as to provide a reduced loss, in a cycle in which the voltage appearing at the output winding of the transformer is the reverse direction to the output rectifier diode.

8. 发明授权

US07638564B2 Low dielectric loss tangent-resin varnish, prepreg, laminated sheet, and printed wiring board using the varnish 失效
标题翻译：低介电损耗切线树脂清漆，预浸料，层压板和使用清漆的印刷线路板
公开(公告)号：US07638564B2
公开(公告)日：2009-12-29
申请号：US11529661
申请日：2006-09-29
申请人： Satoru Amou , Haruo Akahoshi , Yoshihiro Nakamura , Nobuyuki Minami , Yasuhiro Murai
发明人： Satoru Amou , Haruo Akahoshi , Yoshihiro Nakamura , Nobuyuki Minami , Yasuhiro Murai
IPC分类号： C08K5/3447 , C08K5/03 , C08K3/34
CPC分类号： B32B5/26 , B32B5/022 , B32B15/14 , B32B15/20 , B32B2255/02 , B32B2262/02 , B32B2262/10 , B32B2307/3065 , C08J5/24 , C08J2371/12 , C08K3/36 , C08K5/0066 , H05K1/0373 , H05K3/4626 , H05K2201/012 , H05K2201/0133 , H05K2201/0209 , Y10T428/25 , Y10T428/259
摘要： There is provided a varnish of a low dielectric loss tangent resin composition which is low in viscosity and excellent in storage stability. The varnish of a low dielectric loss tangent resin composition contains a thermosetting monomer (A) having a weight average molecular weight of not more than 1,000, a high polymer (B) having a weight average molecular weight of not less than 5,000, a halogen flame-retardant agent (C), a silicon dioxide filler (D), and an organic solvent (E). The average particle diameter of each the components (C) and (D) is in the range of 0.2 to 3 μm.
摘要翻译：提供了一种低介电损耗角正切树脂组合物的清漆，其粘度低，储存稳定性优异。低介电损耗角正切树脂组合物的清漆含有重均分子量不大于1000的热固性单体（A），重均分子量不小于5,000的高聚物（B），卤素火焰缓冲剂（C），二氧化硅填料（D）和有机溶剂（E）。各成分（C）和（D）的平均粒径为0.2〜3μm的范围。

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