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11. 发明授权

US07059183B2 Air flow measuring device 有权
标题翻译：气流测量装置
公开(公告)号：US07059183B2
公开(公告)日：2006-06-13
申请号：US09858476
申请日：2001-05-17
申请人： Hiromu Kikawa , Izumi Watanabe , Shinya Igarashi , Keiichi Nakada , Kei Ueyama
发明人： Hiromu Kikawa , Izumi Watanabe , Shinya Igarashi , Keiichi Nakada , Kei Ueyama
IPC分类号： G01F1/68
CPC分类号： G01F1/6845 , G01F1/6842 , G01F5/00 , G01F15/12
摘要： The present invention provides an air flow measuring device comprising a housing with a sub-passage having an inlet and an outlet for air flow formed in the housing, the sub-passage further having a predefined curvature with a maximum downstream point and a flow measuring element located in the sub-passage at a position at least further downstream from the point.
摘要翻译：本发明提供了一种空气流量测量装置，它包括具有一个子通道的壳体，该子通道具有形成在壳体中的空气流的入口和出口，该子通道还具有具有最大下游点的预定曲率和流量测量元件位于至少在该点下游的位置处的子通道中。

12. 发明申请

US20050229694A1 HEATING RESISTANCE FLOW RATE MEASURING APPARATUS 失效
标题翻译：加热电阻流量测量装置
公开(公告)号：US20050229694A1
公开(公告)日：2005-10-20
申请号：US11052754
申请日：2005-02-09
申请人： Masahiro Matsumoto , Masamichi Yamada , Hiroshi Nakano , Izumi Watanabe , Keiji Hanzawa , Keiichi Nakada
发明人： Masahiro Matsumoto , Masamichi Yamada , Hiroshi Nakano , Izumi Watanabe , Keiji Hanzawa , Keiichi Nakada
IPC分类号： G01F1/698 , F02D41/18 , G01F1/68 , G01F1/684 , G01F1/692 , G01F1/696 , G01F1/699
CPC分类号： G01F1/6845 , F02D41/187 , G01F1/692 , G01F1/696 , G01F1/699
摘要： A heating resistance flow rate measuring apparatus which can use a power source of an ECU in an automobile without requiring an expensive protective circuit and regulator. Heating of temperature detecting resistors themselves causes temperature changes on the windward and leeward sides, and these temperature changes depend on the amounts of heat generated by the temperature detecting resistors. The amounts of heat generated by the temperature detecting resistors depend on a voltage value of the ECU power source applied to the temperature detecting resistors, and an error is caused in a sensor output depending on a variation in the voltage of the ECU power source. Based on the finding that suppressing the amount of heat generated by the temperature detecting resistors is effective in avoiding the sensor output error caused depending on a variation in the output voltage of the ECU power source, means for suppressing the amount of heat generated by the temperature detecting resistors is disposed.
摘要翻译：一种能够在汽车中使用ECU的电源而不需要昂贵的保护电路和调节器的加热电阻流量测量装置。温度检测电阻本身的加热引起迎风侧风和背风侧的温度变化，这些温度变化取决于温度检测电阻产生的热量。由温度检测电阻器产生的热量取决于施加到温度检测电阻器的ECU电源的电压值，并且根据ECU电源的电压变化在传感器输出中引起误差。基于这样的发现，抑制由温度检测电阻产生的热量对于避免根据ECU电源的输出电压的变化而导致的传感器输出误差是有效的，用于抑制由温度产生的热量的装置设置检测电阻器。

13. 发明授权

US06889545B2 Flow rate sensor 有权
标题翻译：流量传感器
公开(公告)号：US06889545B2
公开(公告)日：2005-05-10
申请号：US10778205
申请日：2004-02-17
申请人： Keiichi Nakada , Junichi Horie , Izumi Watanabe
发明人： Keiichi Nakada , Junichi Horie , Izumi Watanabe
IPC分类号： G01F1/68 , F02D41/18 , G01F1/684 , G01F1/692 , G01F1/698 , G01F1/699 , G01F1/72 , G01F5/00
CPC分类号： G01F1/699 , F02D41/187 , G01F1/6842 , G01F1/692 , G01F1/698 , G01F1/72 , G01F5/00
摘要： A flow rate sensor detects the flow rate in a pulsating condition including a large amount of the reverse flow. Upstream temperature sensors and downstream temperature sensors are formed in both sides of a heater, parallel resistors are formed in the external side of a thin film portion (cavity), and the downstream temperature sensors are connected at the contacts. The upstream and downstream temperature sensors are respectively allocated to the four sides of the bridge circuit so that the sensors of the same type are not side by side and the electrodes are balanced when the flow rate is zero. The upstream temperature sensor is cooled during the forward flow, while the downstream temperature sensor is influenced by the heater but virtual change is rather small and potential difference between the electrodes becomes larger. During the reverse flow, the downstream temperature sensor is cooled but virtual change is rather small.
摘要翻译：流量传感器检测包括大量逆流的脉动状态下的流量。上游温度传感器和下游温度传感器形成在加热器的两侧，并且在薄膜部分（空腔）的外侧形成并联电阻，并且下游温度传感器连接在触点上。上游和下游温度传感器分别分配给桥接电路的四侧，使得相同类型的传感器不是并排的，并且当流量为零时电极是平衡的。上游温度传感器在向前流动期间被冷却，而下游温度传感器受到加热器的影响，但虚拟变化相当小，并且电极之间的电位差变大。在逆流期间，下游温度传感器被冷却，但虚拟变化相当小。

14. 发明授权

US06854326B2 Measurement apparatus for measuring physical quantity such as fluid flow 失效
标题翻译：用于测量诸如流体流量的物理量的测量装置
公开(公告)号：US06854326B2
公开(公告)日：2005-02-15
申请号：US10674475
申请日：2003-10-01
申请人： Izumi Watanabe , Naoki Saito , Masayuki Kozawa , Keiichi Nakada , Kei Ueyama
发明人： Izumi Watanabe , Naoki Saito , Masayuki Kozawa , Keiichi Nakada , Kei Ueyama
IPC分类号： G01F1/684 , G01F5/00 , G01F1/68
CPC分类号： G01F1/684 , G01F1/6842 , G01F1/6845 , G01F5/00
摘要： Resin members, on the surfaces of which metal films are formed, are used for; an auxiliary air passage provided in a main air passage, in which a sensor element of a physical quantity sensor such as an air flow sensor, an intake-air temperature sensor, etc., is situated; a housing; and so forth; in order to decrease both the thermal conductivity and the emissivity of those components to respective small values, whereby the temperature increase of the sensor due to both the heat conduction and the heat radiation can be suppressed.
摘要翻译：在其表面上形成金属膜的树脂构件用于：辅助空气通道，其设置在主空气通道中，物理量传感器的传感器元件如空气流量传感器，进气温度传感器等位于其中; 房屋; 等等; 为了将这些部件的热导率和发射率都降低到相应的小值，由此可以抑制由于热传导和热辐射两者而导致的传感器的温度升高。

15. 发明授权

US06708560B2 Measurement apparatus for measuring physical quantity such as fluid flow 有权
标题翻译：用于测量诸如流体流量的物理量的测量装置
公开(公告)号：US06708560B2
公开(公告)日：2004-03-23
申请号：US09790689
申请日：2001-02-23
申请人： Izumi Watanabe , Naoki Saito , Masayuki Kozawa , Keiichi Nakada , Kei Ueyama
发明人： Izumi Watanabe , Naoki Saito , Masayuki Kozawa , Keiichi Nakada , Kei Ueyama
IPC分类号： G01F168
CPC分类号： G01F1/684 , G01F1/6842 , G01F1/6845 , G01F5/00
摘要： Resin members, on the surfaces of which metal films are formed, are used for; an auxiliary air passage provided in a main air passage, in which a sensor element of a physical quantity sensor such as an air flow sensor, an intake-air temperature sensor, etc., is situated; a housing; and so forth; in order to decrease both the thermal conductivity and the emissivity of those components to respective small values, whereby the temperature increase of the sensor due to both the heat conduction and the heat radiation can be suppressed.
摘要翻译：在其表面上形成金属膜的树脂构件用于：辅助空气通道，其设置在主空气通道中，物理量传感器的传感器元件如空气流量传感器，进气温度传感器等位于其中; 房屋; 等等; 为了将这些部件的热导率和发射率都降低到相应的小值，由此可以抑制由于热传导和热辐射两者而导致的传感器的温度升高。

16. 发明授权

US06672153B2 Mass airflow measuring apparatus 有权
公开(公告)号：US06672153B2
公开(公告)日：2004-01-06
申请号：US10157984
申请日：2002-05-31
申请人： Shinya Igarashi , Atsushi Kanke , Rintarou Minamitani , Keiichi Nakada , Izumi Watanabe
发明人： Shinya Igarashi , Atsushi Kanke , Rintarou Minamitani , Keiichi Nakada , Izumi Watanabe
IPC分类号： G01F168
CPC分类号： G01F1/6983 , F02D41/042
摘要： To offer a mass airflow measuring apparatus in which the effect of the adhesion onto the heating resistor caused while the engine is off is reduced and the measuring accuracy is improved. The apparatus measures the mass airflow of the air sucked into the internal combustion engine, using the heating resistor 1. The power control circuit 4 maintains the heating resistor 1 temperature equal to or higher than the temperature during the operation of the internal combustion engine after the internal combustion engine has stopped and until the temperature of the internal combustion engine and its apparatuses installed in the suction system has lowered below the generation temperature of volatile gas such as oil vapor. The power control circuit 4, using the temperature sensing resistor 2 that detects the temperature of the air sucked into the combustion engine, detects the air temperature and maintains the heating resistor 1 temperature, based on the temperature measured, equal to or higher than the temperature during the operation of the internal combustion engine even after the internal combustion engine has stopped.

17. 发明授权

US06357294B1 Thermal air flow sensor 失效
标题翻译：热空气流量传感器
公开(公告)号：US06357294B1
公开(公告)日：2002-03-19
申请号：US09253945
申请日：1999-02-22
申请人： Keiichi Nakada
发明人： Keiichi Nakada
IPC分类号： G01F168
CPC分类号： G01F1/6845
摘要： Disclosed is a thermal air flow sensor in which polycrystalline silicon is used as a heat generating resistor, and which has improved detection sensitivity. An upstream heat generating resistor, a downstream heat generating resistor, a temperature measuring resistor, and an air temperature measuring resistor are formed on a silicon substrate. These resistors are each formed of a semiconductor thin film in which polycrystalline silicon is mixed with a silicide compound and which contains an impurity doped therein. The formed resistor has small specific resistance and a large resistance temperature coefficient.
摘要翻译：公开了一种热空气流量传感器，其中多晶硅用作发热电阻器，并且具有改进的检测灵敏度。在硅衬底上形成上游发热电阻器，下游发热电阻器，温度测量电阻器和空气温度测量电阻器。这些电阻均由半导体薄膜形成，其中多晶硅与硅化物混合并且其中掺杂有杂质。形成的电阻器具有小的电阻率和较大的电阻温度系数。

18. 发明授权

US06349596B1 Thermal type air flow sensor 失效
标题翻译：热式气流传感器
公开(公告)号：US06349596B1
公开(公告)日：2002-02-26
申请号：US09461190
申请日：1999-12-15
申请人： Keiichi Nakada , Izumi Watanabe , Hiroshi Yoneda
发明人： Keiichi Nakada , Izumi Watanabe , Hiroshi Yoneda
IPC分类号： G01F168
CPC分类号： G01F1/6845 , G01F1/692 , G01F1/696 , G01F15/043
摘要： A thermal type air flow sensor which corrects variation of characteristics of a thermal type air flow sensor due to adherence or deposition of fouling contained in an intake air for maintaining an initial accuracy. An air flow rate is measured by means of a heating resistor and a temperature measuring resistor formed by semiconductor fine patterning. A part of the semiconductor substrate is removed. The heating resistor and a portion of the temperature measuring resistor are formed above a space defined by removing the semiconductor substrate. A voltage of the portion of the temperature measuring resistor located above the space is detected for correcting an error in measurement of an intake air using the voltage detected.
摘要翻译：一种热式空气流量传感器，其用于校正由于包含在进气中的污垢的粘附或沉积导致的热式空气流量传感器的特性的变化，以保持初始精度。通过加热电阻器和通过半导体精细图案化形成的温度测量电阻器来测量空气流量。去除半导体衬底的一部分。加热电阻器和温度测量电阻器的一部分形成在通过去除半导体衬底限定的空间的上方。检测位于空间上方的温度测量电阻器的部分的电压，以使用检测到的电压来校正进气测量误差。

19. 发明授权

US07624633B2 Fluid flow sensor and fluid flow measurement device 有权
标题翻译：流体流量传感器和流体流量测量装置
公开(公告)号：US07624633B2
公开(公告)日：2009-12-01
申请号：US11854130
申请日：2007-09-12
申请人： Keiichi Nakada , Junichi Horie , Hiroshi Nakano , Izumi Watanabe
发明人： Keiichi Nakada , Junichi Horie , Hiroshi Nakano , Izumi Watanabe
IPC分类号： G01F1/68
CPC分类号： G01F1/699 , G01F1/6842 , G01F1/692
摘要： A thermal-type fluid flow sensor comprises a heating resistor formed on a thin film of a substrate, and plural thermal sensitive resistors configuring a bridge circuit. The thermal sensitive resistors are disposed on the thin film of the substrate so as to be located on an adjacent upstream side and an adjacent downstream side of the heating resistor in a stream direction of fluid to be measured. Resistor traces for the thermal sensitive resistors are formed so that the respective thermal sensitive resistors exhibit substantially equal changes in resistance with each other to distortion caused in the thin film.
摘要翻译：热式流体流量传感器包括形成在基板的薄膜上的加热电阻器和构成桥接电路的多个热敏电阻器。热敏电阻器设置在基板的薄膜上，以便沿着待测流体的流动方向位于加热电阻器的相邻上游侧和相邻的下游侧。形成用于热敏电阻器的电阻迹线，使得相应的热敏电阻器在薄膜中产生的失真相对于电阻变化相当大。

20. 发明申请

US20090000372A1 Thermal Flow Measurement Device 失效
标题翻译：热流量测量装置
公开(公告)号：US20090000372A1
公开(公告)日：2009-01-01
申请号：US11814308
申请日：2006-02-20
申请人： Masahiro Matsumoto , Hiroshi Nakano , Masamichi Yamada , Keiji Hanzawa , Izumi Watanabe , Keiichi Nakada , Yasuhiro Kanamaru
发明人： Masahiro Matsumoto , Hiroshi Nakano , Masamichi Yamada , Keiji Hanzawa , Izumi Watanabe , Keiichi Nakada , Yasuhiro Kanamaru
IPC分类号： G01F1/69
CPC分类号： G01F15/006 , G01F1/6845 , G01F1/692
摘要： Conventional thermal flow measurement devices lack consideration for automobiles in severe environments. A detection element of the thermal flow measurement device according to the present invention is structured by the provision of a planar substrate made of a material having good thermal conductivity, such as silicon or ceramic, with a thin-walled portion (diaphragm). On the surface of the thin-walled portion, the detection element comprises a heat element as a heater heated to a temperature being different to a predetermined extent from the temperature of the air flow to be measured, temperature-detecting resistors as temperature-detecting means on both sides of the heat element, wiring portions formed of electrical conductors that draw signal lines from the heat element and the temperature-detecting resistors and that have a melting point of 2000° C. or higher, and pads.
摘要翻译：传统的热流测量装置在恶劣环境中缺乏汽车的考虑。根据本发明的热流测量装置的检测元件通过提供由具有良好导热性的材料（例如硅或陶瓷）制成的具有薄壁部分（隔膜）的平面基板构成。在薄壁部分的表面上，检测元件包括作为加热器的加热元件加热到与待测量的空气流的温度不同的温度，作为温度检测装置的温度检测电阻器在加热元件的两侧，由从导热元件和温度检测电阻器吸引信号线并且具有2000℃或更高熔点的电导体形成的布线部分和焊盘。

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