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11. 发明授权

US06635162B2 Gas sensor 有权
标题翻译：气体传感器
公开(公告)号：US06635162B2
公开(公告)日：2003-10-21
申请号：US09397931
申请日：1999-09-17
申请人： Satoshi Sugaya , Norihiko Nadanami , Noboru Ishida , Takafumi Oshima
发明人： Satoshi Sugaya , Norihiko Nadanami , Noboru Ishida , Takafumi Oshima
IPC分类号： G01N27407
CPC分类号： G01N27/417
摘要： A gas sensor having a laminate structure composed of thin sheets of solid electrolyte and including a cavity portion 21 and an oxygen concentration cell 5. The oxygen concentration in the cavity portion 21 is held constant. The oxygen concentration cell 5 includes an active electrode 12 having a relatively high catalytic capability with respect to NOx or combustible gas and an inner common electrode 13/15 (serving as an inactive electrode and an oxygen-concentration-sensing electrode) having a relatively low catalytic capability with respect to NOx or combustible gas. The oxygen concentration cell 5 is disposed in the gas sensor so as to be exposed to the interior of the cavity portion 21. The concentration of NOx or combustible gas is determined based on an electromotive force (of the order of mV) generated between the active electrode 12 and the inner common electrode 13/15 by a concentration cell effect.
摘要翻译：具有由固体电解质薄片构成的层叠结构的气体传感器，包括空腔部21和氧浓度电池5.空腔部21中的氧浓度保持恒定。氧浓度单元5包括相对于NOx或可燃性气体具有相对较高的催化能力的有源电极12和具有相对低的可燃气体的内部公共电极13/15（用作非活性电极和氧浓度感测电极）相对于NOx或可燃气体的催化能力。氧气浓度单元5设置在气体传感器中以暴露于空腔部分21的内部。NOx或可燃气体的浓度基于在活性物质之间产生的电动势（大约mV）电极12和内部公共电极13/15。

12. 发明授权

US6071393A Nitrogen oxide concentration sensor 失效
标题翻译：氮氧化物浓度传感器
公开(公告)号：US6071393A
公开(公告)日：2000-06-06
申请号：US866452
申请日：1997-05-30
申请人： Takafumi Oshima , Masashi Ando , Noboru Ishida , Satoshi Sugaya , Norihiko Nadanami
发明人： Takafumi Oshima , Masashi Ando , Noboru Ishida , Satoshi Sugaya , Norihiko Nadanami
IPC分类号： G01N27/407 , G01N33/00
CPC分类号： G01N27/4074 , G01N27/419
摘要： A small-sized inexpensive nitrogen oxide concentration sensor capable of measuring the concentration of the nitrogen oxide in a measuring gas to a high accuracy. A first oxygen pumping cell, an oxygen concentration measuring cell and a second oxygen pumping cell are formed in different solid electrolyte layers of zirconia and electrodes of oxygen concentration measuring cell are isolated from electrodes of the oxygen pumping cells by insulating film.
摘要翻译：一种能够以高精度测量测量气体中的氮氧化物的浓度的小型便宜的氮氧化物浓度传感器。在氧化锆的不同的固体电解质层中形成第一氧气泵浦单元，氧浓度测量单元和第二氧气泵浦单元，并且通过绝缘膜将氧浓度测量单元的电极与氧气泵浦单元的电极隔离。

13. 发明授权

US06913677B2 Hydrogen sensor 失效
标题翻译：氢传感器
公开(公告)号：US06913677B2
公开(公告)日：2005-07-05
申请号：US10242403
申请日：2002-09-13
申请人： Shoji Kitanoya , Norihiko Nadanami , Tomonori Kondo , Masaya Watanabe , Noboru Ishida
发明人： Shoji Kitanoya , Norihiko Nadanami , Tomonori Kondo , Masaya Watanabe , Noboru Ishida
IPC分类号： G01N27/416 , G01N27/407 , G01N33/00 , H01M8/04 , H01M8/10
CPC分类号： G01N27/4074 , G01N33/005
摘要： A hydrogen gas sensor is configured such that an O-ring 21 is disposed within a measurement chamber 11a in order to seal against a first support element 9a and against a proton conduction layer 1. This O-ring 21 assumes the form of a rectangular frame that surrounds a first electrode 3, and a substantially circular cross section, and is elastic, heat resistant, and durable. A first metal plate 23a and a second metal plate 23b are disposed from the outside on opposite support elements 9a and 9b, respectively. The hydrogen gas sensor of the present embodiment has a pair of right-hand and left-hand through-holes 29 formed therein so as to extend along the thickness direction thereof. Bolts 31 are inserted into the corresponding through-holes 29. By fastening the metal plates 23a and 23b from the outside by means of the bolts 31 and nuts 33, the opposite support elements 9a and 9b are fastened, thereby clamping the entire hydrogen sensor in a unitary condition.
摘要翻译：氢气传感器被配置为使得O形环21设置在测量室11a内以便密封第一支撑元件9a并抵靠质子传导层1.该O形环21呈现为围绕第一电极3的矩形框架和基本圆形的横截面，并且是弹性的，耐热的和耐用的。第一金属板23a和第二金属板23b分别从外部设置在相对的支撑元件9a和9b上。本实施方式的氢气传感器具有沿其厚度方向延伸的一对形成在其中的右侧和左侧通孔29。螺栓31插入对应的通孔29.通过螺栓31和螺母33从外部紧固金属板23a和23b，将相对的支撑元件9a和9b紧固，从而将整个氢传感器处于一体状态。

14. 发明授权

US06764582B2 Hydrogen sensor 失效
标题翻译：氢传感器
公开(公告)号：US06764582B2
公开(公告)日：2004-07-20
申请号：US10290162
申请日：2002-11-08
申请人： Norihiko Nadanami , Shoji Kitanoya , Tomonori Kondo , Masaya Watanabe , Noboru Ishida
发明人： Norihiko Nadanami , Shoji Kitanoya , Tomonori Kondo , Masaya Watanabe , Noboru Ishida
IPC分类号： G01N27407
CPC分类号： G01N27/4074 , G01N33/005
摘要： A gas sensor suitable for measuring hydrogen concentration, including a proton conductive layer (1); a first electrode (3) and a second electrode (5) provided on the proton conductive layer (1); a gas diffusion-limiting inlet (19) provided between the first electrode (3) and a measurement gas atmosphere (6) containing hydrogen gas; and a gas diffusion-limiting outlet (21) provided between the second electrode (5) and the atmosphere (6); wherein the ratio (a/b) between the diffusion resistance (a) of the diffusion limiting portion (19) and the diffusion resistance (b) of the gas outlet portion (21) is not greater than 2.
摘要翻译：适用于测量氢浓度的气体传感器，包括质子传导层（1）; 设置在质子传导层（1）上的第一电极（3）和第二电极（5）。设置在第一电极（3）和含有氢气的测量气体气氛（6）之间的气体扩散限制入口（19）和设置在第二电极（5）和大气（6）之间的气体扩散限制出口（21）。其中所述扩散限制部分（19）的扩散阻力（a）与所述气体出口部分（21）的扩散阻力（b）之比（a / b）不大于2。

15. 发明授权

US07341694B2 Ammonia sensor 有权
标题翻译：氨传感器
公开(公告)号：US07341694B2
公开(公告)日：2008-03-11
申请号：US10669660
申请日：2003-09-25
申请人： Hiroyuki Nishiyama , Shiro Kakimoto , Ryuji Inoue , Hitoshi Yokoi , Noboru Ishida , Takafumi Oshima , Satoshi Sugaya , Koichi Imaeda , Tadashi Hattori , Atsushi Satsuma
发明人： Hiroyuki Nishiyama , Shiro Kakimoto , Ryuji Inoue , Hitoshi Yokoi , Noboru Ishida , Takafumi Oshima , Satoshi Sugaya , Koichi Imaeda , Tadashi Hattori , Atsushi Satsuma
IPC分类号： G01N27/04 , G01N33/00
CPC分类号： G01N33/0054 , G01N27/4075 , Y02A50/246 , Y10T436/173845 , Y10T436/175383 , Y10T436/25875
摘要： In an ammonia sensor (1), lead portions (7) and (9) are provided on an insulating substrate (5); a pair of comb-shaped electrodes (11) and (13) are connected to the lead portions (7) and (9), respectively; a sensitive layer (15) is provided on the comb-shaped electrodes (11) and (13); and a protective layer (17) is provided on the sensitive layer (15). Particularly, the sensitive layer (15) is formed of a gas-sensitive raw material predominantly containing ZrO2 and containing at least W in an amount of 2 to 40 wt. % as reduced to WO3.
摘要翻译：在氨传感器（1）中，引线部分（7）和（9）设置在绝缘基板（5）上; 一对梳状电极（11）和（13）分别连接到引线部分（7）和（9）; 敏感层（15）设置在梳状电极（11）和（13）上; 并且在敏感层（15）上设置保护层（17）。特别地，敏感层（15）由主要含有ZrO 2的气敏原料形成，至少含有W为2〜40wt。％降低至WO 3。

16. 发明授权

US06812821B2 Humidity sensor 失效
标题翻译：湿度传感器
公开(公告)号：US06812821B2
公开(公告)日：2004-11-02
申请号：US10157134
申请日：2002-05-30
申请人： Hiroki Fujita , Tetsuo Yamada , Satoshi Sugaya , Kenji Kato , Noboru Ishida , Takafumi Oshima
发明人： Hiroki Fujita , Tetsuo Yamada , Satoshi Sugaya , Kenji Kato , Noboru Ishida , Takafumi Oshima
IPC分类号： H01C700
CPC分类号： G01N27/121
摘要： A humidity sensor comprising an insulating substrate, a detection electrodes and a moisture-sensitive layer, wherein the moisture-sensitive layer is a porous layer and has a thickness not greater than 200 &mgr;m.
摘要翻译：一种湿度传感器，包括绝缘基板，检测电极和湿度敏感层，其中所述湿度敏感层是多孔层，并且具有不大于200μm的厚度。

17. 发明授权

US06568240B1 Method and apparatus using a gas concentration sensor for accurately controlling an air fuel ratio in an internal combustion engine 失效
标题翻译：使用气体浓度传感器来精确地控制内燃机的空燃比的方法和装置
公开(公告)号：US06568240B1
公开(公告)日：2003-05-27
申请号：US09480661
申请日：2000-01-11
申请人： Yoshikuni Sato , Noboru Ishida , Hideki Ishikawa , Takafumi Oshima , Yasushi Sato
发明人： Yoshikuni Sato , Noboru Ishida , Hideki Ishikawa , Takafumi Oshima , Yasushi Sato
IPC分类号： G01N2726
CPC分类号： F02D41/1459 , F02D41/0042 , F02D41/0045 , F02D41/144 , F02D41/2441 , F02D41/2474 , F02D2200/0614 , G01N2291/02809
摘要： The present invention provides a method and apparatus using a gas concentration sensor for accurately controlling an air fuel ratio in an internal combustion engine, featuring in that before the fuel-vaporized gas purged from the canister enters into the intake manifold whereat the sensor detects the gas concentration of the purged gas, the sensor is adjusted so as to adjust a zero point (or zero output level) of the sensor output. In step 100 of FIG. 7, a judgment is made as to whether the flow rate of air reaches a predetermined level. In step 110, processing for zero-point correction of the gas concentration sensor is performed. Specifically, in a state in which the purge valve 17 is closed, concentration of purge gas is measured by use of the gas concentration sensor 4, and a sensor output S1 at that time is obtained. Subsequently, the sensor output S1 is compared with a correct sensor output S0 in order to obtain a difference &Dgr;S therebetween. Accordingly, during subsequent gas concentration measurement, a value S3 obtained through subtraction of the difference &Dgr;S from an obtained sensor output S2 is used as a correct sensor output. In step 120, a supply amount of purge gas, i.e., a concentration of the purge gas to be supplied is obtained. In subsequent step 130, the purge valve 17 is driven in order to supply purge gas to the intake pipe 2 in a required amount (A%).
摘要翻译：本发明提供了一种使用气体浓度传感器来精确地控制内燃机中的空燃比的方法和装置，其特征在于在从罐排出的燃料汽化气体进入进气歧管之前，传感器检测到气体净化气体的浓度，调节传感器以调节传感器输出的零点（或零输出水平）。在图1的步骤100中如图7所示，判断空气流量是否达到预定水平。在步骤110中，进行气体浓度传感器的零点校正处理。具体地说，在关闭吹扫阀17的状态下，利用气体浓度传感器4测定净化气体的浓度，得到此时的传感器输出S1。随后，将传感器输出S1与正确的传感器输出S0进行比较，以获得它们之间的差值DELTAS。因此，在后续的气体浓度测量中，使用通过从获得的传感器输出S2中减去差值DELTAS获得的值S3作为正确的传感器输出。在步骤120中，获得净化气体的供给量，即所供给的净化气体的浓度。在随后的步骤130中，驱动排气阀17，以便以所需量（A％）向进气管2供应净化气体。

18. 发明授权

US06308572B1 Gas concentration sensor 失效
标题翻译：气体浓度传感器
公开(公告)号：US06308572B1
公开(公告)日：2001-10-30
申请号：US09504118
申请日：2000-02-15
申请人： Hideki Ishikawa , Yoshikuni Sato , Keigo Banno , Noboru Ishida , Takafumi Oshima
发明人： Hideki Ishikawa , Yoshikuni Sato , Keigo Banno , Noboru Ishida , Takafumi Oshima
IPC分类号： G01H500
CPC分类号： G01N29/222 , G01N29/024 , G01N2291/0212 , G01N2291/0217 , G01N2291/0258 , G01N2291/02809 , G01N2291/02836 , G01N2291/045
摘要： A gas concentration sensor comprises an ultrasonic element 33 opposite a reflection surface 34. A depression 34a is formed on an edge portion of a reflection surface 34 which is in contact with a side wall of a measurement chamber 32 such that a bottom surface of the depression 34a is substantially in parallel with the reflection surface 34. The distance between the ultrasonic element 33 and the edge portion of the reflection surface 34 becomes greater than the distance between the ultrasonic element 33 and a central portion of the reflection surface 34. As a result, an indirect wave, which impinges obliquely on the side wall of the measurement chamber 32 and propagates along the side wall, is reflected from the bottom surface of the depression 34a and propagates. Thus, the propagation distance of this indirect wave becomes greater as compared to the case where the reflection surface 34 is flat, so that the indirect wave is not combined with a direct wave in the vicinity of a modulation point of the direct wave. That is, since the modulation point of the direct wave can be detected accurately, a time interval between a modulation point of a transmitted wave and that of a received wave can be measured as the propagation time of an ultrasonic wave, thereby enabling accurate determination of gas concentration.
摘要翻译：气体浓度传感器包括与反射面34相对的超声波元件33.凹部34a形成在与测量室32的侧壁接触的反射面34的边缘部分上，使得凹部 34a与反射面34大致平行。超声波元件33与反射面34的边缘部之间的距离变得大于超声波元件33与反射面34的中央部之间的距离。其结果是，，从斜面34a的底面反射而沿着测量室32的侧壁倾斜并沿侧壁传播的间接波被传播。因此，与反射面34平坦的情况相比，该间接波的传播距离变大，因此间接波不与直接波的调制点附近的直接波组合。也就是说，由于可以精确地检测直接波的调制点，所以可以测量发射波的调制点和接收波的调制点之间的时间间隔作为超声波的传播时间，从而能够准确地确定气体浓度。

19. 发明授权

US07080543B2 Sensor and method for manufacturing the same 失效
标题翻译：传感器及其制造方法
公开(公告)号：US07080543B2
公开(公告)日：2006-07-25
申请号：US10409587
申请日：2003-04-09
申请人： Hideki Ishikawa , Yoshikuni Sato , Keigo Banno , Masashi Sakamoto , Noboru Ishida , Takafumi Oshima
发明人： Hideki Ishikawa , Yoshikuni Sato , Keigo Banno , Masashi Sakamoto , Noboru Ishida , Takafumi Oshima
IPC分类号： G01N29/02
CPC分类号： G01N29/223 , G01N2291/021 , G01N2291/02809 , G01N2291/02818 , G01N2291/02881
摘要： A detecting-element assembly (40) is configured such that a piezoelectric element (51) is housed in a casing body portion (43) of a casing (42), and is attached to a housing portion (22) of a flow path formation member (20) via a flange portion (41). Therefore, the path between the piezoelectric element (51) and the position of attachment of the detecting-element assembly (40) is elongated, whereby ultrasonic waves which leak into the interior of the detecting-element assembly (40) from the piezoelectric element (51) become unlikely to reflectively return from a joint. Thus, the influence of, for example, noise stemming from reflected waves is reduced, thereby enhancing the accuracy of detection. An average clearance of 1 millimeter or more is provided along the outer circumferential surface of the casing body portion (43) of the detecting-element assembly (40), whereby a problem of collected foreign matter is unlikely to occur.
摘要翻译：检测元件组件（40）构造成使得压电元件（51）容纳在壳体（42）的壳体主体部分（43）中，并且附接到流路形成的壳体部分（22）构件（20）经由凸缘部分（41）。因此，压电元件（51）与检测元件组件（40）的安装位置之间的路径被拉长，从而从压电元件（...）泄漏到检测元件组件（40）的内部的超声波 51）变得不可能从联合反射回来。因此，降低了例如由反射波产生的噪声的影响，从而提高了检测的准确性。沿着检测元件组件（40）的壳体主体部（43）的外周面设置有1毫米以上的平均间隙，由此不可能发生收集的异物问题。

20. 发明授权

US06568281B1 Ultrasonic-wave propagation-time measuring method, gas-pressure measuring method, gas-flow rate measuring method, and gas sensor 失效
标题翻译：超声波传播时间测量方法，气压测量方法，气体流量测量方法和气体传感器
公开(公告)号：US06568281B1
公开(公告)日：2003-05-27
申请号：US09635897
申请日：2000-08-11
申请人： Yoshikuni Sato , Keigo Banno , Hideki Ishikawa , Noboru Ishida , Takafumi Oshima
发明人： Yoshikuni Sato , Keigo Banno , Hideki Ishikawa , Noboru Ishida , Takafumi Oshima
IPC分类号： G01F166
CPC分类号： G01F1/668 , G01H5/00 , G01L11/06 , G01N29/024 , G01N29/38 , G01N29/4454 , G01N29/48 , G01N2291/0212 , G01N2291/0217 , G01N2291/02809 , G01N2291/02836 , G01N2291/02872 , G01N2291/101 , G01N2291/102
摘要： An ultrasonic-wave propagation time measuring method which enables determination of accurate propagation time, a gas-pressure measuring method, a gas-flow-rate measuring method, and a gas sensor. A reception wave which has been transmitted and received by an ultrasonic element 5 is shaped and integrated by an integration circuit 67 to obtain an integral value. A peak value of the integral value is held by a peak-hold circuit 39. As to detection of gas concentration, a resistance-voltage-division circuit 41 sets a reference value on the basis of the peak value, and a point in time when the integral value of the reception wave is judged by a comparator 43 to have reached the reference value is regarded as an arrival time. Subsequently, a gas concentration is detected on the basis of a period between the emission time and the arrival time. As to detection of gas pressure and flow rate, the gas pressure is detected on the basis of the peak value, and further, the gas flow rate is calculated on the basis of the gas pressure.
摘要翻译：能够确定准确的传播时间的超声波传播时间测量方法，气体压力测量方法，气体流量测量方法和气体传感器。由超声波元件5发送和接收的接收波被积分电路67整形并积分以获得积分值。积分值的峰值由峰值保持电路39保持。关于气体浓度的检测，电阻分压电路41基于峰值设定基准值，接收波的积分值由比较器43判定为已经达到基准值被认为是到达时间。随后，基于发射时间和到达时间之间的周期来检测气体浓度。关于气体压力和流量的检测，基于峰值检测气体压力，此外，基于气体压力计算气体流量。

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