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1. 发明授权

US06462622B1 High-frequency amplifier and high-frequency multistage amplifier 失效
标题翻译：高频放大器和高频多级放大器
公开(公告)号：US06462622B1
公开(公告)日：2002-10-08
申请号：US09988326
申请日：2001-11-19
申请人： Kazutomi Mori , Kazuhisa Yamauchi , Koji Yamanaka , Kazuhiko Nakahara , Tadashi Takagi
发明人： Kazutomi Mori , Kazuhisa Yamauchi , Koji Yamanaka , Kazuhiko Nakahara , Tadashi Takagi
IPC分类号： H03F304
CPC分类号： H03F1/3205 , H03F3/1935 , H03F2200/294 , H03F2200/372
摘要： A T-type circuit having series resistors and a parallel resistor is arranged on the outside of an amplifier, a signal is amplified in the amplifier while stabilizing the signal by using the T-type circuit functioning as a stabilizing circuit, and the amplified signal is output. In this case, values of the series resistors and the parallel resistor of the T-type circuit are determined so as to set an output load impedance obtained by seeing the output side of the high-frequency amplifier from the amplifier to a value near to or slightly lower than a value of the conjugate complex impedance of an output impedance of the amplifier. Therefore, the output signal having a high output electric power and a low distortion can be obtained in the high-frequency amplifier while keeping a gain and a noise characteristic of the high-frequency amplifier.
摘要翻译：具有串联电阻器和并联电阻器的T型电路布置在放大器的外部，通过使用用作稳定电路的T型电路稳定信号，放大器中的信号被放大，放大的信号为输出。在这种情况下，确定T型电路的串联电阻器和并联电阻器的值，以便将通过从放大器看到高频放大器的输出侧而获得的输出负载阻抗设置为接近或等于略低于放大器的输出阻抗的共轭复阻抗的值。因此，在保持高频放大器的增益和噪声特性的同时，可以在高频放大器中获得具有高输出功率和低失真的输出信号。

2. 发明授权

US06861906B2 High-frequency semiconductor device 有权
标题翻译：高频半导体器件
公开(公告)号：US06861906B2
公开(公告)日：2005-03-01
申请号：US10204446
申请日：2001-05-11
申请人： Kazutomi Mori , Shintaro Shinjo , Kousei Maemura , Teruyuki Shimura , Kazuhiko Nakahara , Tadashi Takagi
发明人： Kazutomi Mori , Shintaro Shinjo , Kousei Maemura , Teruyuki Shimura , Kazuhiko Nakahara , Tadashi Takagi
IPC分类号： H01L27/06 , H03F3/19 , H03F3/21 , H03F3/68
CPC分类号： H01L27/0605 , H03F3/19 , H03F3/211 , H03F2203/21178
摘要： A high-frequency semiconductor device according to the present invention achieves improvements in degradation of noise characteristics and a reduction in gain, and an improvement in reduction in power efficiency while suppressing a concentration of a current to multifinger HBTs. In the multifinger HBTs constituting a first stage and an output stage of an amplifier 10, basic HBTs 14 that constitute the multifinger HBT 12 corresponding to the first stage, are each made up of an HBT 14a and an emitter resistor 14b connected to the corresponding emitter of the HBT 14a, whereas basic HBTs 18 that constitute the multifinger HBT 16 corresponding to the output stage, are each comprised of an HBT 18a and a base resistor 18c connected to the corresponding base of the HBT 18a. The high-frequency semiconductor device according to the present invention is useful as a high output power amplifier used in satellite communications, ground microwave communications, mobile communications, etc.
摘要翻译：根据本发明的高频半导体器件实现了噪声特性的降低和增益的降低的改善，并且在抑制电流到多焦HBT的浓度的同时，提高了功率效率的降低。在构成放大器10的第一级和输出级的多画面HBT中，构成对应于第一级的多画面HBT 12的基本HBT 14分别由连接到相应发射极的HBT 14a和发射极电阻14b组成而构成与输出级相对应的多功能HBT16的基本HBT 18分别由连接到HBT 18a的相应基座的HBT 18a和基极电阻18c组成。根据本发明的高频半导体器件可用作卫星通信，地面微波通信，移动通信等中使用的高输出功率放大器。

3. 发明授权

US07892312B2 Nitrification inhibitor and soil improver and fertilizer containing the same 有权
标题翻译：硝化抑制剂和土壤改良剂和含有相同的肥料
公开(公告)号：US07892312B2
公开(公告)日：2011-02-22
申请号：US11498961
申请日：2006-08-04
申请人： Guntur V. Subbarao , Kazuhiko Nakahara , Takayuki Ishikawa , Osamu Ito , Hiroshi Ono , Mayumi Kameyama , Mitsuru Yoshida , Marco Rondon , Idupulapati Madhusudana Rao , Carlos Lascano , Manabu Ishitani
发明人： Guntur V. Subbarao , Kazuhiko Nakahara , Takayuki Ishikawa , Osamu Ito , Hiroshi Ono , Mayumi Kameyama , Mitsuru Yoshida , Marco Rondon , Idupulapati Madhusudana Rao , Carlos Lascano , Manabu Ishitani
IPC分类号： C05D9/02
CPC分类号： C05G3/08 , C05F11/00 , Y02P60/218
摘要： A nitrification inhibitor and a soil improver and a fertilizer containing the same are offered which can be utilized in a wide area from a tropical to a temperate zone, and can be easily obtained from natural origin materials. It is a nitrification inhibitor to inhibit soil nitrification, containing as a main component either one of linoleic acid, α-linolenic acid, γ-linolenic acid, and methyl linoleate, or their mixture of two or more. By incorporating this nitrification inhibitor into a soil improver or a fertilizer, nitrification of soil can be effectively inhibited.
摘要翻译：提供了一种硝化抑制剂和土壤改良剂以及含有该化合物的肥料，可用于从热带到温带的广泛区域，并且可以容易地从天然来源材料获得。它是抑制土壤硝化的硝化抑制剂，它含有亚油酸，α-亚麻酸，γ-亚麻酸，亚油酸甲酯中的一种或两种以上的混合物作为主要成分。通过将这种硝化抑制剂掺入土壤改良剂或肥料中，可以有效地抑制土壤的硝化作用。

4. 发明授权

US5032806A Loaded line phase shifter 失效
标题翻译：负载线移相器
公开(公告)号：US5032806A
公开(公告)日：1991-07-16
申请号：US496912
申请日：1990-03-21
申请人： Kazuhiko Nakahara
发明人： Kazuhiko Nakahara
IPC分类号： H01P1/185
CPC分类号： H01P1/185
摘要： A loaded line phase shifter using striplines diposed on a semiconductor substrate includes a main stripline having an electrical length of one-half wavelength, loaded striplines connected to respective ends of the main stripline, a field effect transistor having its source electrode and its drain electrode connected to the respective load lines, a bias circuit connected to the gate electrode of the field effect transistor for controlling the bias voltage applied to the gate electrode, and a resonant stripline connected between the source electrode and the drain electrode.

5. 发明授权

US08268940B2 Flame-retardant adhesive resin composition and adhesive film using the same 有权
标题翻译：阻燃粘合剂树脂组合物和使用其的粘合膜
公开(公告)号：US08268940B2
公开(公告)日：2012-09-18
申请号：US12530152
申请日：2008-03-06
申请人： Akira Mori , Kiwamu Tokuhisa , Kazuhiko Nakahara , Masashi Kaji
发明人： Akira Mori , Kiwamu Tokuhisa , Kazuhiko Nakahara , Masashi Kaji
IPC分类号： C08L63/00 , C08L79/08 , C08L83/10 , B32B27/28 , B32B27/38
CPC分类号： C08G59/4284 , C08G59/04 , C08G59/245 , C08G73/106 , C08L63/00 , C08L2666/14 , C08L2666/22 , C09J163/00 , C09J179/08 , C09J183/10 , H05K3/386 , H05K2201/0162
摘要： Disclosed is a halogen- and phosphorus-free flame-retardant adhesive resin composition which can be used in heat contact bonding of adherends at or below 250° C. and is excellent in heat resistance, solder heat resistance after moisture absorption, and processability. Also disclosed is an adhesive film produced from said composition. The flame-retardant adhesive resin composition comprises 65-98% by weight of a silicone unit-containing polyimide resin and 2-35% by weight of an epoxy resin having an acenaphthylene-substituted naphthalene skeleton. The adhesive film produced from the flame-retardant adhesive resin composition is suitable as an adhesive for a laminate for a multiplayer printed circuit board substrate, an adhesive for a hybrid circuit board substrate, and an adhesive for a coverlay film.
摘要翻译：公开了一种无卤阻燃粘合树脂组合物，其可用于250℃以下的被粘物的热接触粘合，耐热性，吸湿后的耐焊锡性，加工性优异。还公开了由所述组合物制备的粘合膜。阻燃性粘合剂树脂组合物包含65-98重量％的含硅氧烷单元的聚酰亚胺树脂和2-35重量％的具有苊烯取代的萘骨架的环氧树脂。由阻燃粘合树脂组合物制成的粘合膜适用于多层印刷电路板基板，混合电路板基板用粘合剂和覆盖膜用粘合剂的粘合剂。

6. 发明申请

US20100016473A1 CRYSTALLINE RESIN CURED PRODUCT, CRYSTALLINE RESIN COMPOSITE MATERIAL, AND METHOD FOR PRODUCING THE SAME 失效
标题翻译：结晶树脂固化产品，结晶树脂复合材料及其制造方法
公开(公告)号：US20100016473A1
公开(公告)日：2010-01-21
申请号：US12312369
申请日：2007-11-08
申请人： Masashi Kaji , Koichiro Ogami , Kazuhiko Nakahara , Tomomi Fukunaga
发明人： Masashi Kaji , Koichiro Ogami , Kazuhiko Nakahara , Tomomi Fukunaga
IPC分类号： C08L63/00 , C08G59/06
CPC分类号： C08G59/245 , C08G59/5033 , C08G59/621 , C08G63/42
摘要： Provided are a crystalline resin cured product which shows high thermal conductivity, low thermal expansion, high heat resistance, low moisture absorption, and good gas barrier properties and a crystalline resin composite material produced therefrom. Further provided is a method for producing the crystalline resin cured product and the crystalline resin composite material. The crystalline resin cured product is obtained by the reaction of an aromatic diglycidyl compound or a diglycidyl resin with an aromatic dihydroxy compound or with a dihydroxy resin and it shows a heat of melting of 10 J/g or more in differential thermal analysis while the endothermic peak corresponding to the melting appears in the range of 120 to 320° C. The crystalline resin composite material is obtained by combining the crystalline resin cured product with a filler or a base material. The crystalline resin cured product has a unit represented by -A-O—CH2—CH(OH)—CH2—O—B—, wherein A and B are divalent aromatic groups.
摘要翻译：提供一种显示出高导热性，低热膨胀，高耐热性，低吸湿性和良好阻气性的结晶树脂固化产物和由其制备的结晶树脂复合材料。另外提供了结晶性树脂固化物和结晶性树脂复合材料的制造方法。结晶性树脂固化物通过芳香族二缩水甘油基化合物或二缩水甘油基树脂与芳香族二羟基化合物或二羟基树脂的反应而得到，并且在差热分析中显示出10J / g以上的熔融热，同时吸热对应于熔化的峰出现在120〜320℃的范围内。结晶性树脂复合材料通过将结晶性树脂固化物与填料或基材结合而得到。结晶性树脂固化物具有由-A-O-CH 2 -CH（OH）-CH 2 -O-B-表示的单元，其中A和B是二价芳族基团。

7. 发明申请

US20070293969A1 Mounting Condition Determining Method, Mounting Condition Determining Device, and Mounter 审中-公开
标题翻译：安装条件确定方法，安装条件确定装置和贴片机
公开(公告)号：US20070293969A1
公开(公告)日：2007-12-20
申请号：US11664417
申请日：2006-02-08
申请人： Wataru Hirai , Yasuhiro Maenishi , Hiroaki Kurata , Chikashi Konishi , Kazuhiko Nakahara , Masakatsu Fujita , Takuya Yamazaki , Takaaki Yokoi
发明人： Wataru Hirai , Yasuhiro Maenishi , Hiroaki Kurata , Chikashi Konishi , Kazuhiko Nakahara , Masakatsu Fujita , Takuya Yamazaki , Takaaki Yokoi
IPC分类号： H05K13/04 , H05K13/08
CPC分类号： H05K13/0885 , H05K13/085
摘要： According to the present invention, mounting conditions are determined to become closer to a setting value of a parameter regarding electricity consumption. The present invention provides a method of determining mounting conditions under which a piece of equipment mounts a component onto a substrate. The method includes: obtaining a setting value of a parameter regarding electricity consumption required to mount the component; obtaining an actual value of the parameter based on current mounting conditions; and determining new mounting conditions based on a result of comparing the setting value with the actual value.
摘要翻译：根据本发明，确定安装条件更接近关于电力消耗的参数的设定值。本发明提供了一种确定安装条件的方法，在该条件下，一件设备将部件安装到基板上。该方法包括：获得关于安装部件所需的关于电力消耗的参数的设定值; 基于当前安装条件获取参数的实际值; 以及基于将设定值与实际值进行比较的结果来确定新的安装条件。

8. 发明授权

US5502421A Variable attenuation microwave attenuator 失效
标题翻译：可变衰减微波衰减器
公开(公告)号：US5502421A
公开(公告)日：1996-03-26
申请号：US409043
申请日：1995-03-23
申请人： Kazuhiko Nakahara
发明人： Kazuhiko Nakahara
IPC分类号： H03H7/06 , H01P1/22 , H03H7/25 , H03H11/24 , H03H7/24
CPC分类号： H03H11/245
摘要： A variable attenuation microwave attenuator includes input and output terminals, a high-pass filter having an electrical length of 90.degree. and transmitting signals with frequencies higher than a cut-off frequency, a first variable resistor connected between the input terminal and an input end of the high-pass filter, and a second variable resistor connected between an output end of the high-pass filter and the output terminal, wherein input signals applied to the input terminal are attenuated by the first and second variable resistors before and after the high-pass filter. Therefore, the variable attenuator can be a lumped parameter circuit, i.e., the high-pass filter including two inductors and a capacitor, without using a transmission line as in the prior art device, so that the size of the device is significantly reduced. Further, since the resistance values of the first and second variable resistors do not change discretely but change continuously, a lot of different values of attenuation can be obtained with high precision. As a result, the gain (attenuation amount) can be controlled with high precision.
摘要翻译：可变衰减微波衰减器包括输入和输出端子，电气长度为90度的高通滤波器和传输频率高于截止频率的信号;第一可变电阻器，连接在输入端子和输入端子的输入端之间高通滤波器和连接在高通滤波器的输出端和输出端之间的第二可变电阻器，其中施加到输入端子的输入信号由高频滤波器之前和之后的第一和第二可变电阻器衰减，通过滤波器。因此，可变衰减器可以是集中参数电路，即包括两个电感器和电容器的高通滤波器，而不使用如现有技术的器件中的传输线，使得器件的尺寸显着降低。此外，由于第一和第二可变电阻器的电阻值不是离散地改变而是连续变化，所以可以以高精度获得大量不同的衰减值。结果，可以高精度地控制增益（衰减量）。

9. 发明授权

US5485130A Microwave switch circuit and an antenna apparatus 失效
标题翻译：微波开关电路和天线装置
公开(公告)号：US5485130A
公开(公告)日：1996-01-16
申请号：US378876
申请日：1995-01-24
申请人： Kazuhiko Nakahara , Takuo Kashiwa
发明人： Kazuhiko Nakahara , Takuo Kashiwa
IPC分类号： H01P1/15 , H01P5/02
CPC分类号： H01P1/15
摘要： A microwave switch circuit includes a first impedance conversion circuit, one end of which is connected to an input terminal; a resonance circuit connected between an output of the first impedance conversion circuit and ground and including a parallel connection of a field effect transistor and a resonance inductor; and a second impedance conversion circuit connected between the output of the first impedance conversion circuit and an output terminal. One microwave switch circuit may be connected between an antenna terminal and a signal input terminal and another microwave switch circuit may be connected between the antenna terminal and a signal receiving terminal. The microwave switch circuit output terminal and input terminal may have an impedance of 50 .OMEGA. and the output of the first impedance conversion circuit may have an impedance lower than 50 .OMEGA.. The microwave switch circuit may include one-fourth wavelength transmission lines as the first and second impedance conversion circuits. Consequently, the maximum allowable value of the incident power is increased and withstand power is increased in an antenna switch circuit.
摘要翻译：微波开关电路包括第一阻抗转换电路，其一端连接到输入端; 连接在所述第一阻抗转换电路的输出和地之间并包括场效应晶体管和谐振电感器的并联连接的谐振电路; 以及连接在第一阻抗转换电路的输出端和输出端子之间的第二阻抗变换电路。一个微波开关电路可以连接在天线端子和信号输入端子之间，另一个微波开关电路可以连接在天线端子和信号接收端子之间。微波开关电路输出端子和输入端子的阻抗可以为50欧姆，第一阻抗转换电路的输出阻抗可能低于50欧姆。微波开关电路可以包括作为第一和第二阻抗转换电路的四分之一波长传输线。因此，在天线开关电路中，入射功率的最大允许值增加并且耐受功率增加。

10. 发明授权

US5095357A Inductive structures for semiconductor integrated circuits 失效
标题翻译：半导体集成电路的电感结构
公开(公告)号：US5095357A
公开(公告)日：1992-03-10
申请号：US567170
申请日：1990-08-14
申请人： Naoto Andoh , Akira Inoue , Yasuharu Nakajima , Kazuhiko Nakahara
发明人： Naoto Andoh , Akira Inoue , Yasuharu Nakajima , Kazuhiko Nakahara
IPC分类号： H01L21/822 , H01F17/00 , H01F21/08 , H01F27/28 , H01L21/02 , H01L23/64 , H01L27/04
CPC分类号： H01L28/10 , H01F17/0006 , H01F17/0033 , H01F21/08 , H01F27/2804 , H01L23/645 , H01F2017/004 , H01F2017/0046 , H01F2017/0086 , H01L2924/0002 , H01L2924/3011
摘要： Inductive structures having low parasitic capacitances for direct integration in semiconductor integrated circuits. In one embodiment, a generally planar spiral winding is disposed on the surface of a substrate. An electrical connection to the internal end of the spiral is made through electrically conducting vias passing through the substrate. The spiral may be spaced from a substrate surface by a plurality of spaced apart electrically conductive posts having a staggered arrangement between adjacent windings of the spiral. A transformer includes two windings disposed on top of each other on a semiconductor substrate and separated by an electrically insulating film. The windings have a common central opening in which a magnetic material is disposed to improve the inductive coupling between the windings. The transformer may include two helical windings, one surrounding another, each formed with vias and electrical conductors, the inner winding being formed in and on a semiconductor substrate and the outer winding being formed on insulating films disposed on the substrate and extending through the films and substrate. A variable inductor includes inductively coupled spiral windings separated by an insulating film and a current control for controlling the current through one of the spirals and, thereby, the effective inductance of the other spiral.

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