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1. 发明授权

US06906574B2 Drive circuit for driving power semiconductor device 有权
标题翻译：用于驱动功率半导体器件的驱动电路
公开(公告)号：US06906574B2
公开(公告)日：2005-06-14
申请号：US10627784
申请日：2003-07-28
申请人： Takeshi Ohi , Yasushi Nakayama , Takeshi Tanaka
发明人： Takeshi Ohi , Yasushi Nakayama , Takeshi Tanaka
IPC分类号： H01L27/04 , H01L21/822 , H02M1/00 , H02M1/08 , H03K17/0812 , H03K17/16 , H03K17/28
CPC分类号： H03K17/08128 , H03K17/168
摘要： A drive circuit includes a gate voltage detector that detects a gate-emitter voltage Vge that appears between the gate and emitter of a power semiconductor device throughout a detection time period during which a sampler allows the process of detecting the gate-emitter voltage Vge, and that recognizes the occurrence of an abnormality in the power semiconductor device when the gate-emitter voltage Vge exceeds a reference value. Therefore, the drive circuit can protect the power semiconductor device with higher reliability by promptly detecting the occurrence of a short circuit even when the power semiconductor device is resistant to high voltages.
摘要翻译：驱动电路包括栅极电压检测器，其检测在功率半导体器件的栅极和发射极之间出现的栅 - 发射极电压Vge，在检测时间段期间，采样器允许检测栅 - 发射极电压Vge的处理，以及当栅极 - 发射极间电压Vge超过参考值时，识别功率半导体器件发生异常。因此，即使当功率半导体器件耐高压时，驱动电路可以通过及时检测短路的发生来以更高的可靠性来保护功率半导体器件。

2. 发明授权

US06967519B2 Drive circuit for a power semiconductor device 失效
标题翻译：用于功率半导体器件的驱动电路
公开(公告)号：US06967519B2
公开(公告)日：2005-11-22
申请号：US10345388
申请日：2003-01-16
申请人： Yasushi Nakayama , Takeshi Ohi , Ryuichi Hashido
发明人： Yasushi Nakayama , Takeshi Ohi , Ryuichi Hashido
IPC分类号： H02M1/00 , H02M1/08 , H03K17/0812 , H03K17/16 , H03K17/30
CPC分类号： H03K17/168 , H01L2924/0002 , H03K17/08128 , H01L2924/00
摘要： A drive circuit for a power semiconductor device includes: a sampling signal generating circuit for detecting that an input control signal instructs OFF and outputting a sampling signal at the time instant of start of a Miller period of time of an IGBT; a gate voltage detecting circuit for detecting a Miller voltage of the IGBT at the timing when the sampling signal is inputted and outputting, when the Miller voltage is equal to or larger than a threshold, an over-current detection signal; and a gate voltage controlling circuit for controlling, in response to the over-current detection signal, a gate voltage of the IGBT in such a way that the IGBT is turned OFF at slower speed than in the normal state. Thus, it is possible to suppress a surge voltage which is generated when the IGBT is turned OFF during the flow of an over-current.
摘要翻译：一种用于功率半导体器件的驱动电路包括：采样信号发生电路，用于检测输入控制信号指示关闭并在IGBT的米勒启动时刻启动采样信号; 栅极电压检测电路，用于在采样信号输入的定时检测IGBT的米勒电压，并且当米勒电压等于或大于阈值时输出过电流检测信号; 以及栅极电压控制电路，用于响应于过电流检测信号，以与正常状态相比以较慢的速度关闭IGBT的方式来控制IGBT的栅极电压。因此，可以抑制在过电流期间IGBT关断时产生的浪涌电压。

3. 发明授权

US07246632B2 Normally-closed electromagnetic valve and manufacturing method for the same 有权
标题翻译：常闭电磁阀及其制造方法相同
公开(公告)号：US07246632B2
公开(公告)日：2007-07-24
申请号：US11092564
申请日：2005-03-29
申请人： Takeshi Ohi , Takaaki Komaba , Hiroaki Tokoi
发明人： Takeshi Ohi , Takaaki Komaba , Hiroaki Tokoi
IPC分类号： F16K31/02
CPC分类号： F16K31/0655 , B60T8/363 , B60T15/028 , F16K31/0693 , Y10T137/0491
摘要： A normally-closed electromagnetic valve has a body member having a receiving space, a fixed core, a valve seat, a moving core, a resilient member urging the moving core toward the valve seat, a valve element and a coil exciting the fixed core to produce an attracting force between the fixed core and the moving core, wherein the moving core has a through hole, the valve element is inserted into the through hole from the valve seat-side, at least a part of the resilient member is inserted into the through hole from the fixed core-side and the resilient member is compressed between a moving core-side end of the fixed core and a fixed core-side end of the valve seat.
摘要翻译：常闭电磁阀具有主体部件，该主体部件具有容纳空间，固定芯部，阀座，移动芯部，将移动铁心推向阀座的弹性部件，将该固定铁心励磁的阀芯和线圈在固定芯与活动芯之间产生吸引力，其中移动芯具有通孔，阀元件从阀座侧插入到通孔中，弹性构件的至少一部分插入到来自固定铁心侧的通孔和弹性构件在固定铁芯的可动铁心侧端部与阀座的固定铁芯侧端部之间被压缩。

4. 发明授权

US07554173B2 Semiconductor device 有权
标题翻译：半导体器件
公开(公告)号：US07554173B2
公开(公告)日：2009-06-30
申请号：US11722112
申请日：2005-12-19
申请人： Takashi Inaguchi , Takeshi Ohi , Katsuhiko Fukuhara , Naoshi Yamada , Yoshitsugu Inaba , Takao Mitsuhashi
发明人： Takashi Inaguchi , Takeshi Ohi , Katsuhiko Fukuhara , Naoshi Yamada , Yoshitsugu Inaba , Takao Mitsuhashi
IPC分类号： H01L29/00
CPC分类号： H01L29/7395 , G01K7/22 , H01L23/24 , H01L23/34 , H01L24/48 , H01L2224/0401 , H01L2224/05647 , H01L2224/48091 , H01L2224/48137 , H01L2224/8592 , H01L2924/00014 , H01L2924/01012 , H01L2924/01019 , H01L2924/0102 , H01L2924/01057 , H01L2924/01067 , H01L2924/01078 , H01L2924/01079 , H01L2924/1301 , H01L2924/1305 , H01L2924/13055 , H01L2924/13091 , H01L2924/19107 , H01L2924/3011 , H01L2924/00 , H01L2224/45099 , H01L2224/45015 , H01L2924/207
摘要： A semiconductor device accurately monitoring temperature of a semiconductor chip even in a noisy environment, while not requiring a highly accurate detection circuit. A PTC element is bonded onto an IGBT chip. Then, a constant current flows from a constant current source through the PTC element, and an output voltage of the PTC element is detected by a voltage monitor. When output voltage increases, a voltage applied to a gate electrode by a detection circuit is decreased. Since the PTC element is directly arranged on the IGBT chip, the temperature of the IGBT chip can be monitored with high accuracy. Further, since the change in output voltage of the PTC element per 1° C. is large, a highly accurate detection circuit is not necessary, thereby allowing accurate monitoring of the temperature of the IGBT chip even in a noisy environment.
摘要翻译：半导体器件即使在嘈杂的环境中也能准确地监测半导体芯片的温度，同时不需要高精度的检测电路。 PTC元件接合在IGBT芯片上。然后，恒定电流从恒定电流源流过PTC元件，并且通过电压监视器检测PTC元件的输出电压。当输出电压升高时，由检测电路施加到栅电极的电压降低。由于PTC元件直接配置在IGBT芯片上，因此可以高精度地监视IGBT芯片的温度。此外，由于PTC元件每1℃的输出电压变化大，因此不需要高精度的检测电路，因此即使在嘈杂的环境下也能够精确地监视IGBT芯片的温度。

5. 发明申请

US20050029478A1 Normally closed solenoid valve 有权
标题翻译：常闭电磁阀
公开(公告)号：US20050029478A1
公开(公告)日：2005-02-10
申请号：US10887318
申请日：2004-07-09
申请人： Takaaki Komaba , Takeshi Ohi
发明人： Takaaki Komaba , Takeshi Ohi
IPC分类号： F16K31/06 , F16K31/02
CPC分类号： F16K31/0693 , B60T8/363 , F16K31/0655
摘要： A normally closed solenoid valve includes a fixed core, a valve portion including a valve seat and a valve body, a movable core disposed between the fixed core and the valve seat, a resilient biasing member for biasing the movable core in a valve-closing direction and a coil. When energized, the coil generates an attracting force between the movable core and the fixed core against a biasing force by the resilient biasing member to cause the movable core to retreat from an initial position where the valve seat is in a closed state. When a characteristic graph line of spacing distance/attracting force that defines the attracting force in relation with a spacing distance between the fixed core and the movable core provides an inclination A (N/mm) at the initial position, the compression resiliency coefficient of the resilient biasing member is set to A(N/mm).
摘要翻译：常闭电磁阀包括固定芯，包括阀座和阀体的阀部分，设置在固定芯和阀座之间的可动芯，弹性偏压件，用于沿阀闭合方向和线圈。当通电时，线圈通过弹性偏置构件抵抗偏置力而在可动铁芯和固定铁芯之间产生吸引力，以使可动铁芯从阀座处于关闭状态的初始位置退回。当限定与固定芯和可动铁芯之间的间隔距离相关的吸引力的间隔距离/吸引力的特性曲线图在初始位置提供倾斜A（N / mm）时，压缩弹性系数弹性偏置构件设定为A（N / mm）。

6. 发明申请

US20050001189A1 Normally open solenoid valve 审中-公开
标题翻译：常开电磁阀
公开(公告)号：US20050001189A1
公开(公告)日：2005-01-06
申请号：US10858469
申请日：2004-06-02
申请人： Yoshiyuki Takamatsu , Masaya Shigeta , Takeshi Ohi
发明人： Yoshiyuki Takamatsu , Masaya Shigeta , Takeshi Ohi
IPC分类号： B60T8/36 , B60T15/02 , F16K31/06 , F16K31/02
CPC分类号： F16K31/0655 , B60T8/363 , B60T15/028
摘要： A normally open solenoid valve, includes: a coil; a fixed core that is excited when the coil is energized, the fixed core having a through hole and an opening formed at an end of the throughhole; a valve seat disposed at the opening; a valve element inserted through the through hole, the valve element including a valve part for coming into contact with the valve seat and a roughly columnar shaft part extending from the valve part; and a movable core that pushes and moves the valve element. The shaft part has a plurality of sliding portions that are slidable on the inner surface of the through hole and are formed to be spaced in an axial direction of the shaft part and a narrowed portion having an outer diameter smaller than the sliding portions between the plurality of sliding portions.
摘要翻译：常开电磁阀，包括：一个线圈; 固定铁心，其在线圈通电时被激励，固定铁芯具有通孔和形成在通孔的端部的开口; 设置在开口处的阀座; 通过所述通孔插入的阀元件，所述阀元件包括用于与所述阀座接触的阀部件和从所述阀部件延伸的大致柱状轴部; 以及推动和移动阀元件的可动芯。所述轴部具有能够在所述贯通孔的内表面上滑动的多个滑动部，所述多个滑动部形成为沿所述轴部的轴向间隔开，所述狭窄部的外径小于所述多个的滑动部分。

7. 发明授权

US07866627B2 Normally-closed electromagnetic valve and manufacturing method for the same 有权
标题翻译：常闭电磁阀及其制造方法相同
公开(公告)号：US07866627B2
公开(公告)日：2011-01-11
申请号：US11763244
申请日：2007-06-14
申请人： Takeshi Ohi , Takaaki Komaba , Hiroaki Tokoi
发明人： Takeshi Ohi , Takaaki Komaba , Hiroaki Tokoi
IPC分类号： F16K31/02
CPC分类号： F16K31/0655 , B60T8/363 , B60T15/028 , F16K31/0693 , Y10T137/0491
摘要： A normally-closed electromagnetic valve has a body member having a receiving space, a fixed core, a valve seat, a moving core, a resilient member urging the moving core toward the valve seat, a valve element and a coil exciting the fixed core to produce an attracting force between the fixed core and the moving core, wherein the moving core has a through hole, the valve element is inserted into the through hole from the valve seat-side, at least a part of the resilient member is inserted into the through hole from the fixed core-side and the resilient member is compressed between a moving core-side end of the fixed core and a fixed core-side end of the valve seat.
摘要翻译：常闭电磁阀具有主体部件，该主体部件具有容纳空间，固定芯部，阀座，移动芯部，将移动铁心推向阀座的弹性部件，将该固定铁心励磁的阀芯和线圈在固定芯与活动芯之间产生吸引力，其中移动芯具有通孔，阀元件从阀座侧插入到通孔中，弹性构件的至少一部分插入到来自固定铁心侧的通孔和弹性构件在固定铁芯的可动铁心侧端部与阀座的固定铁芯侧端部之间被压缩。

8. 发明申请

US20080006897A1 Semiconductor Device 有权
标题翻译：半导体器件
公开(公告)号：US20080006897A1
公开(公告)日：2008-01-10
申请号：US11722112
申请日：2005-12-19
申请人： Takashi Inaguchi , Takeshi Ohi , Katsuhiko Fukuhara , Naoshi Yamada , Yoshitsugu Inaba , Takao Mitsuhashi
发明人： Takashi Inaguchi , Takeshi Ohi , Katsuhiko Fukuhara , Naoshi Yamada , Yoshitsugu Inaba , Takao Mitsuhashi
IPC分类号： H01L23/34
CPC分类号： H01L29/7395 , G01K7/22 , H01L23/24 , H01L23/34 , H01L24/48 , H01L2224/0401 , H01L2224/05647 , H01L2224/48091 , H01L2224/48137 , H01L2224/8592 , H01L2924/00014 , H01L2924/01012 , H01L2924/01019 , H01L2924/0102 , H01L2924/01057 , H01L2924/01067 , H01L2924/01078 , H01L2924/01079 , H01L2924/1301 , H01L2924/1305 , H01L2924/13055 , H01L2924/13091 , H01L2924/19107 , H01L2924/3011 , H01L2924/00 , H01L2224/45099 , H01L2224/45015 , H01L2924/207
摘要： A semiconductor device accurately monitoring temperature of a semiconductor chip even in a noisy environment, while not requiring a highly accurate detection circuit. A PTC element is bonded onto an IGBT chip. Then, a constant current flows from a constant current source through the PTC element, and an output voltage of the PTC element is detected by a voltage monitor. When output voltage increases, a voltage applied to a gate electrode by a detection circuit is decreased. Since the PTC element is directly arranged on the IGBT chip, the temperature of the IGBT chip can be monitored with high accuracy. Further, since the change in output voltage of the PTC element per 1° C. is large, a highly accurate detection circuit is not necessary, thereby allowing accurate monitoring of the temperature of the IGBT chip even in a noisy environment.
摘要翻译：半导体器件即使在嘈杂的环境中也能准确地监测半导体芯片的温度，同时不需要高精度的检测电路。 PTC元件接合在IGBT芯片上。然后，恒定电流从恒定电流源流过PTC元件，并且通过电压监视器检测PTC元件的输出电压。当输出电压升高时，由检测电路施加到栅电极的电压降低。由于PTC元件直接配置在IGBT芯片上，因此可以高精度地监视IGBT芯片的温度。此外，由于PTC元件每1℃的输出电压变化大，因此不需要高精度的检测电路，因此即使在嘈杂的环境下也能够精确地监视IGBT芯片的温度。

9. 发明授权

US07240893B2 Normally closed solenoid valve 有权
标题翻译：常闭电磁阀
公开(公告)号：US07240893B2
公开(公告)日：2007-07-10
申请号：US10887318
申请日：2004-07-09
申请人： Takaaki Komaba , Takeshi Ohi
发明人： Takaaki Komaba , Takeshi Ohi
IPC分类号： F16K31/02
CPC分类号： F16K31/0693 , B60T8/363 , F16K31/0655
摘要： A normally closed solenoid valve includes a fixed core, a valve portion including a valve seat and a valve body, a movable core disposed between the fixed core and the valve seat, a resilient biasing member for biasing the movable core in a valve-closing direction and a coil. When energized, the coil generates an attracting force between the movable core and the fixed core against a biasing force by the resilient biasing member to cause the movable core to retreat from an initial position where the valve seat is in a closed state. When a characteristic graph line of spacing distance/attracting force that defines the attracting force in relation with a spacing distance between the fixed core and the movable core provides an inclination A (N/mm) at the initial position, the compression resiliency coefficient of the resilient biasing member is set to A (N/mm).
摘要翻译：常闭电磁阀包括固定芯，包括阀座和阀体的阀部分，设置在固定芯和阀座之间的可动芯，弹性偏压件，用于沿阀闭合方向和线圈。当通电时，线圈通过弹性偏置构件抵抗偏置力而在可动铁芯和固定铁芯之间产生吸引力，以使可动铁芯从阀座处于关闭状态的初始位置退回。当限定与固定芯和可动铁芯之间的间隔距离相关的吸引力的间隔距离/吸引力的特性曲线图在初始位置提供倾斜A（N / mm）时，压缩弹性系数弹性偏置构件设定为A（N / mm）。

10. 发明申请

US20050218364A1 Normally-closed electromagnetic valve and manufacturing method for the same 有权
标题翻译：常闭电磁阀及其制造方法相同
公开(公告)号：US20050218364A1
公开(公告)日：2005-10-06
申请号：US11092564
申请日：2005-03-29
申请人： Takeshi Ohi , Takaaki Komaba , Hiroaki Tokoi
发明人： Takeshi Ohi , Takaaki Komaba , Hiroaki Tokoi
IPC分类号： B60T8/36 , B60T15/02 , F16K31/06 , F16K31/02
CPC分类号： F16K31/0655 , B60T8/363 , B60T15/028 , F16K31/0693 , Y10T137/0491
摘要： A normally-closed electromagnetic valve has a body member having a receiving space, a fixed core, a valve seat, a moving core, a resilient member urging the moving core toward the valve seat, a valve element and a coil exciting the fixed core to produce an attracting force between the fixed core and the moving core, wherein the moving core has a through hole, the valve element is inserted into the through hole from the valve seat-side, at least a part of the resilient member is inserted into the through hole from the fixed core-side and the resilient member is compressed between a moving core-side end of the fixed core and a fixed core-side end of the valve seat.
摘要翻译：常闭电磁阀具有主体部件，该主体部件具有容纳空间，固定芯部，阀座，移动芯部，将移动铁心推向阀座的弹性部件，将该固定铁心励磁的阀芯和线圈在固定芯与活动芯之间产生吸引力，其中移动芯具有通孔，阀元件从阀座侧插入到通孔中，弹性构件的至少一部分插入到来自固定铁心侧的通孔和弹性构件在固定铁芯的可动铁心侧端部与阀座的固定铁芯侧端部之间被压缩。

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