公开(公告)号：US06216341B1

公开(公告)日：2001-04-17

申请号：US09354569

申请日：1999-07-16

申请人： Kazuhiko Nakahara

发明人： Kazuhiko Nakahara

IPC分类号： H05K330

CPC分类号： H05K13/08 ,  H05K13/0452 ,  Y10T29/49117 ,  Y10T29/49126 ,  Y10T29/4913 ,  Y10T29/49131

摘要： In a method of mounting electronic components on a surface, where an electronic component is picked up by a moving head and is mounted onto a printed circuit board, a board recognition camera moves together with a mounting head and recognizes a recognition point set on a first board block of a board which is divided into a plurality of sections. After mounting an electronic component onto the first board block, a judgement is made whether or not a recognition point exists along the travelling path of the mounting head from a mounting position to the place for the next action. When it is judged that there is a recognition point, the board recognition camera is moved to the recognition point during the travelling and causes the camera to recognize the recognition point. As a result, useless travelling of the mounting head is eliminated and a tact time is shortened.

摘要翻译： 在将电子部件安装在电子部件被移动头拾取并安装在印刷电路板上的表面上的方法中，电路板识别照相机与安装头一起移动，并识别设置在第一 被划分为多个部分的板的板块。 在将电子部件安装到第一板块上之后，判断沿着安装头的行进路径从安装位置到下一个动作的位置是否存在识别点。 当判断为存在识别点时，在识别点移动到识别点，使识别点识别。 结果，消除了安装头的无用的行进并缩短了节拍时间。

公开(公告)号：US5519349A

公开(公告)日：1996-05-21

申请号：US310322

申请日：1994-09-22

申请人： Kazuhiko Nakahara

发明人： Kazuhiko Nakahara

IPC分类号： H03H11/22 ,  H01P1/185 ,  H03H7/20 ,  H03H11/20

CPC分类号： H03H11/20 ,  H03H7/20

摘要： A phase shifter includes first and second single pole double throw switches, a low-pass filter, and a high-pass filter. The first switch has an input terminal and first and second output terminals, and the second switch has first and second input terminals and an output terminal. The low-pass filter is interposed between the first output terminal of the first switch and the first input terminal of the second switch and includes FETs as capacitors. The high-pass filter is interposed between the second output terminal of the first switch and the second input terminal of the second switch and includes a plurality of FETs as capacitors. The input terminal of first switch and the output terminal of the second switch are an input terminal and an output terminal of the phase shifter, respectively. Each of the high-pass filter and the low-pass filter produces two different phase quantities by the on-off switching of the FETs. Therefore, four different phase quantities are obtained in the phase shifter, i.e., two different phase shift quantities are realized in the phase shifter.

摘要翻译： 移相器包括第一和第二单极双掷开关，低通滤波器和高通滤波器。 第一开关具有输入端子和第一和第二输出端子，第二开关具有第一和第二输入端子和输出端子。 低通滤波器介于第一开关的第一输出端和第二开关的第一输入端之间，并且包括作为电容器的FET。 高通滤波器介于第一开关的第二输出端和第二开关的第二输入端之间，并且包括作为电容器的多个FET。 第一开关的输入端和第二开关的输出端分别是移相器的输入端和输出端。 高通滤波器和低通滤波器中的每一个通过FET的开 - 关切换产生两个不同的相量。 因此，在移相器中获得四个不同的相位量，即在移相器中实现两个不同的相移量。

公开(公告)号：US5382926A

公开(公告)日：1995-01-17

申请号：US72956

申请日：1993-06-08

申请人： Kazuhiko Nakahara ,  Shinji Aono

发明人： Kazuhiko Nakahara ,  Shinji Aono

IPC分类号： H01P1/185

CPC分类号： H01P1/185

摘要： A loaded line phase shifter includes a semiconductor substrate; a main transmission line one-quarter wavelength long disposed on the semiconductor substrate; loaded lines connected to opposite ends of the main line; first and second FETs with drain electrodes connected to the other ends of the loaded lines and grounded source electrodes; and a resonant circuit including a third FET and an inductor connected between the drain electrodes of said first and second FETs. A desired phase shift quantity of the phase shifter is determined by the characteristic impedance of the main line, the reactance components of the loaded lines, and the off-capacitances of the FETs. When the resonant circuit is closed in this structure, the susceptance of the loaded lines and the first and second FETs is equal to zero, resulting in a phase shift quantity equivalent to half of the phase shift quantity obtained when the resonant circuit is opened. Therefore, two different phase shift quantities are achieved in one phase shifter, resulting in a small-sized multiple-bit phase shifter.

摘要翻译： 负载线相移器包括半导体衬底; 设置在半导体衬底上的四分之一波长长的主传输线; 连接到主线的相对端的负载线; 第一和第二FET，漏极连接到负载线的另一端和接地的源电极; 以及包括连接在所述第一和第二FET的漏电极之间的第三FET和电感器的谐振电路。 移相器的期望的相移量由主线的特性阻抗，负载线的电抗分量和FET的截止电容决定。 当在该结构中关闭谐振电路时，负载线和第一和第二FET的电纳等于零，导致相当于当谐振电路断开时获得的相移量的一半的相移量。 因此，在一个移相器中实现两个不同的相移量，从而产生小尺寸的多位移相器。

公开(公告)号：US5379007A

公开(公告)日：1995-01-03

申请号：US148612

申请日：1993-11-08

申请人： Kazuhiko Nakahara

发明人： Kazuhiko Nakahara

IPC分类号： H01P1/15 ,  H01P1/185 ,  H01P1/18

CPC分类号： H01P1/185

摘要： A reflection phase shifter includes a 3 dB directional coupler having opposite first and second ends, a reflection circuit connected between the first and second ends of the 3 dB directional coupler, a first resonant circuit connected between a node connecting the first end of the 3 dB directional coupler and the reflection circuit and ground, and a second resonant circuit connected between a node connecting the second end of the 3 dB directional coupler and the reflection circuit and ground. Each resonant circuit comprises an FET and an inductor connected between source and drain electrodes of the FET. In this reflection phase shifter, when the resonant circuits are open, the first and second ends of the 3 dB directional coupler are connected to the reflection circuit. On other hand, when the resonant circuits are short-circuited, the first and second ends of the 3 dB directional coupler are grounded. As a result, three different phases, i.e., two different phase shift quantities, are attained in one reflection phase shifter.

摘要翻译： 反射移相器包括具有相对的第一和第二端的3dB定向耦合器，连接在3dB定向耦合器的第一和第二端之间的反射电路，连接在连接到3dB的第一端的节点之间的第一谐振电路 定向耦合器和反射电路和接地，以及连接在连接3dB定向耦合器的第二端的节点与反射电路和地之间的第二谐振电路。 每个谐振电路包括FET和连接在FET的源极和漏极之间的电感器。 在该反射移相器中，当谐振电路断开时，3dB定向耦合器的第一和第二端连接到反射电路。 另一方面，当谐振电路短路时，3dB定向耦合器的第一端和第二端接地。 结果，在一个反射移相器中获得了三个不同的相位，即两个不同的相移量。

公开(公告)号：US20100063217A1

公开(公告)日：2010-03-11

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： C09J139/00

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。

公开(公告)号：US20100016498A1

公开(公告)日：2010-01-21

申请号：US11919587

申请日：2006-05-08

申请人： Masashi Kaji ,  Koichiro Ogami ,  Kazuhiko Nakahara

发明人： Masashi Kaji ,  Koichiro Ogami ,  Kazuhiko Nakahara

IPC分类号： C08L63/00

CPC分类号： C08G59/245 ,  C08G59/621 ,  H01L23/293 ,  H01L2924/0002 ,  H01L2924/00

摘要： Disclosed is an epoxy resin composition that cures with high thermal conductivity and low thermal expansion and is capable of dissipating heat efficiently and displaying good dimensional stability when applied to encapsulation of semiconductor devices or to printed wiring boards. The epoxy resin composition is formulated from epoxy resins 50 wt % or more of which is a diphenyl ether type epoxy resin represented by the following general formula (1) (wherein n is a number of ≧0 and m is an integer of 1-3) and curing agents 20 wt % or more of which is a diphenyl ether type phenolic resin represented by the following general formula (2) (wherein n is a number of ≧0 and m is an integer of 1-3).

摘要翻译： 公开了一种环氧树脂组合物，其具有高导热性和低热膨胀性，并且当应用于半导体器件或印刷线路板的封装时，能够有效地散热并显示良好的尺寸稳定性。 环氧树脂组合物由50重量％以上的环氧树脂配制，其为由以下通式（1）表示的二苯醚型环氧树脂（其中n为≥0的数，m为1- 3）和20重量％以上的固化剂，其为由以下通式（2）表示的二苯醚型酚醛树脂（其中n为≥0的数，m为1-3的整数）。

公开(公告)号：US20080307843A1

公开(公告)日：2008-12-18

申请号：US11898187

申请日：2007-09-10

申请人： Guntur V. Subbarao ,  Kazuhiko Nakahara ,  Takayuki Ishikawa

发明人： Guntur V. Subbarao ,  Kazuhiko Nakahara ,  Takayuki Ishikawa

IPC分类号： C05F11/00

CPC分类号： C05G3/08 ,  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 juglone as a main component. By incorporating this nitrification inhibitor into a soil improver or a fertilizer, nitrification of soil can be effectively inhibited. The nitrification inhibitor is preferably contained in a soil improver or a fertilizer in the range of 20 to 50% weight %.

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，含有胡桃作为主要成分。 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。 硝化抑制剂优选包含在土壤改良剂或20〜50重量％范围的肥料中。

公开(公告)号：US20070028659A1

公开(公告)日：2007-02-08

申请号：US11498961

申请日：2006-08-04

申请人： Guntur Subbarao ,  Kazuhiko Nakahara ,  Takayuki Ishikawa ,  Osamu Ito ,  Hiroshi Ono ,  Mayumi Kameyama ,  Mitsuru Yoshida ,  Marco Rondon ,  Idupulapati Rao ,  Carlos Lascano ,  Manabu Ishitani

发明人： Guntur Subbarao ,  Kazuhiko Nakahara ,  Takayuki Ishikawa ,  Osamu Ito ,  Hiroshi Ono ,  Mayumi Kameyama ,  Mitsuru Yoshida ,  Marco Rondon ,  Idupulapati 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-亚麻酸和亚油酸甲酯中的一种或两种或更多种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。

公开(公告)号：US06310517B1

公开(公告)日：2001-10-30

申请号：US09447041

申请日：1999-11-23

申请人： Kazuhiko Nakahara ,  Yasushi Itoh

发明人： Kazuhiko Nakahara ,  Yasushi Itoh

IPC分类号： H03F316

CPC分类号： H03F3/601 ,  H03F3/1935 ,  H03F2200/372

摘要： A microwave amplifier (10) of the present invention contains such an arrangement that both an inductor (12) and a resistor (13) are loaded in a parallel manner between a source electrode of a field-effect transistor (11) and the ground. Since the inductor (12) has a stray capacitance component (B), the inductor (12) is resonated at a resonant frequency “f0”. However, since the source electrode of the field-effect transistor (11) is grounded via a resistor (13) connected in parallel to the inductor (12), even when the inductor (12) is opened due to a resonant operation, the field-effect transistor (11) is operated under normal condition. As a result, the operation of the microwave amplifier (10) is stabilized.

摘要翻译： 本发明的微波放大器（10）具有这样一种布置，使电感器（12）和电阻器（13）以并联的方式加载在场效应晶体管（11）的源电极和地之间。 由于电感器（12）具有杂散电容分量（B），电感器（12）以共振频率“f0”谐振。 然而，由于场效应晶体管（11）的源电极通过并联连接到电感器（12）的电阻器（13）接地，所以即使当由于谐振操作使电感器（12）打开时，场 晶体管（11）在正常条件下工作。 结果，微波放大器（10）的工作稳定。

公开(公告)号：US5834570A

公开(公告)日：1998-11-10

申请号：US917745

申请日：1997-08-27

申请人： Masashi Kaji ,  Takanori Aramaki ,  Kazuhiko Nakahara ,  Hisayuki Nagino

发明人： Masashi Kaji ,  Takanori Aramaki ,  Kazuhiko Nakahara ,  Hisayuki Nagino

IPC分类号： C08G59/24 ,  C08F283/00

CPC分类号： C08G59/245

摘要： An epoxy resin composition of this invention is obtained by solidifying epoxy resins represented by the following general formula (1) (wherein G is glycidyl group and R.sup.1 to R.sup.8 are hydrogen atoms, halogen atoms or hydrocarbon groups with 1 to 6 carbon atoms, and n is an integer of 0 to 10) by crystallization and adding epoxy resin curing agents to the resulting solid. It shows good flow and low moisture absorption, cures with excellent heat resistance at soldering temperature and is useful for a variety of applications, in particular, for encapsulating semiconductor devices. ##STR1##

摘要翻译： 本发明的环氧树脂组合物是将下述通式（1）表示的环氧树脂（其中，G为缩水甘油基，R1〜R8为氢原子，卤素原子或碳原子数为1〜6的烃基）和n 为0〜10的整数），并向所得固体添加环氧树脂固化剂。 它表现出良好的流动性和低吸湿性，在焊接温度下具有优异的耐热性，并且可用于各种应用，特别是用于封装半导体器件。 （1）