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1. 发明授权

US06337009B1 Gas sensor 失效
标题翻译：气体传感器
公开(公告)号：US06337009B1
公开(公告)日：2002-01-08
申请号：US09523198
申请日：2000-03-10
申请人： Norihiko Nadanami , Takafumi Oshima , Hiroki Fujita , Ryuji Inoue
发明人： Norihiko Nadanami , Takafumi Oshima , Hiroki Fujita , Ryuji Inoue
IPC分类号： G01N27407
CPC分类号： G01N27/4074 , G01N33/005
摘要： A gas sensor comprising a proton-conductive layer 5 formed of a polymer electrolyte; first and second electrodes 3 and 4 disposed in contact with the proton-conductive layer 5 and having a function of dissociating hydrogen; a gas-diffusion-rate limiting layer 2 disposed between a measurement gas atmosphere and the first electrode 3 and adapted to diffuse the gas under measurement to the first electrode 3 in a diffusion-rate limited state; and a dense support 1 supporting these elements. Hydrogen gas having reached the first electrode 3 via the gas-diffusion-rate limiting layer 2 is dissociated into protons by virtue of the catalytic action of Pt contained in the electrode and the voltage applied to the first electrode 3, and the generated protons are pumped to the second electrode 4 via the proton-conductive layer 5 and are converted to hydrogen gas, which diffuses into the measurement gas atmosphere. When the applied voltage is sufficiently high, saturation current flows between the first and second electrodes 3 and 4, and the magnitude of the saturation current varies in proportion to the hydrogen gas concentration of the gas under measurement. A hydrogen gas sensor which operates at low temperature in a hydrogen-rich atmosphere, and which can accurately measure hydrogen gas concentration of a fuel gas of a fuel cell, is thereby provided.
摘要翻译：一种气体传感器，包括由聚合物电解质形成的质子传导层5; 设置成与质子传导层5接触并具有解离氢的功能的第一和第二电极3和4; 设置在测量气体气氛和第一电极3之间并适于以扩散速率限制状态将测量中的气体扩散到第一电极3的气体扩散限制层2; 以及支撑这些元件的致密支撑件1。通过气体扩散限制层2到达第一电极3的氢气由于电极中包含的Pt的催化作用和施加到第一电极3的电压而被解离成质子，所产生的质子被泵送通过质子传导层5向第二电极4转移，并将其转化为扩散到测量气体气氛中的氢气。当施加的电压足够高时，在第一和第二电极3和4之间流过饱和电流，并且饱和电流的大小与被测气体的氢气浓度成比例地变化。由此，能够在富氢气氛中在低温下工作，能够精确地测定燃料电池的燃料气体的氢气浓度的氢气传感器。

2. 发明授权

US06652723B1 Hydrogen gas sensor 失效
标题翻译：氢气传感器
公开(公告)号：US06652723B1
公开(公告)日：2003-11-25
申请号：US09716225
申请日：2000-11-21
申请人： Norihiko Nadanami , Norobu Ishida , Takafumi Oshima , Ryuji Inoue , Tomonori Kondo
发明人： Norihiko Nadanami , Norobu Ishida , Takafumi Oshima , Ryuji Inoue , Tomonori Kondo
IPC分类号： G01N27407
CPC分类号： G01N27/4074 , G01N33/005
摘要： A hydrogen gas sensor capable of accurately measuring hydrogen concentration of a measurement gas atmosphere in the presence of a variety of interfering gasses such as H2O and CO. In the hydrogen gas sensor, the flow sectional area of a diffusion-rate limiting portion 6 is rendered small; the electrode surfaces of first and second electrodes 3 and 4 are rendered large; and/or a solution containing a polymer electrolyte which may be identical to that of a proton-conductive layer 2 is applied onto the surfaces of the first and second electrodes 3 and 4 to thereby form a layer containing the polymer electrolyte. Thus, the rate of conduction of protons from the first electrode 3 to the second electrode 4 becomes greater than the rate at which protons are derived from hydrogen which is introduced onto the first electrode 3 via the diffusion-rate limiting portion 6.
摘要翻译：一种氢气传感器，能够在各种干扰气体如H 2 O和CO的存在下精确测量测量气体气氛的氢浓度。在氢气传感器中，使扩散速率限制部分6的流动截面面积小; 第一和第二电极3和4的电极表面变大; 和/或含有与质子传导层2相同的聚合物电解质的溶液施加到第一和第二电极3和4的表面上，从而形成含有聚合物电解质的层。因此，从第一电极3到第二电极4的质子传导速率变得比通过扩散速率限制部分6被引入到第一电极3上的氢导出质子的速率大。

3. 发明授权

US07306712B2 Gas sensor and method for measuring gas concentration using the same 失效
标题翻译：气体传感器及使用其测量气体浓度的方法
公开(公告)号：US07306712B2
公开(公告)日：2007-12-11
申请号：US10144835
申请日：2002-05-15
申请人： Masaya Watanabe , Norihiko Nadanami , Tomonori Kondo , Ryuji Inoue , Takafumi Oshima , Noboru Ishida
发明人： Masaya Watanabe , Norihiko Nadanami , Tomonori Kondo , Ryuji Inoue , Takafumi Oshima , Noboru Ishida
IPC分类号： G01N27/407
CPC分类号： G01N33/005 , G01N27/4074 , G01N33/006
摘要： This invention provides a gas sensor including a proton-conductive polymer electrolyte layer and a method for measuring gas concentration, that are capable of measuring gas concentration at high accuracy notwithstanding the presence of water vapor.
摘要翻译：本发明提供了一种气体传感器，其包括质子传导性聚合物电解质层和气体浓度测量方法，尽管存在水蒸气，但能够高精度地测量气体浓度。

4. 发明授权

US07276141B2 Hydrogen gas sensor 失效
标题翻译：氢气传感器
公开(公告)号：US07276141B2
公开(公告)日：2007-10-02
申请号：US10628400
申请日：2003-07-29
申请人： Norihiko Nadanami , Norobu Ishida , Takafumi Oshima , Ryuji Inoue , Tomonori Kondo
发明人： Norihiko Nadanami , Norobu Ishida , Takafumi Oshima , Ryuji Inoue , Tomonori Kondo
IPC分类号： G01N27/407
CPC分类号： G01N27/4074 , G01N33/005
摘要： A hydrogen gas sensor capable of accurately measuring hydrogen concentration of a measurement gas atmosphere in the presence of a variety of interfering gasses such as H2O and CO. In the hydrogen gas sensor, the flow sectional area of a diffusion-rate limiting portion 6 is rendered small; the electrode surfaces of first and second electrodes 3 and 4 are rendered large; and/or a solution containing a polymer electrolyte which may be identical to that of a proton-conductive layer 2 is applied onto the surfaces of the first and second electrodes 3 and 4 to thereby form a layer containing the polymer electrolyte. Thus, the rate of conduction of protons from the first electrode 3 to the second electrode 4 becomes greater than the rate at which protons are derived from hydrogen which is introduced onto the first electrode 3 via the diffusion-rate limiting portion 6.
摘要翻译：一种氢气传感器，能够在各种干扰气体如H 2 O和CO存在下精确测量测量气体气氛的氢浓度。在氢气传感器中，流量截面积扩散速率限制部分6变小; 第一和第二电极3和4的电极表面变大; 和/或含有与质子传导层2相同的聚合物电解质的溶液施加到第一和第二电极3和4的表面上，从而形成含有聚合物电解质的层。因此，从第一电极3到第二电极4的质子传导速率变得比通过扩散速率限制部分6被引入到第一电极3上的氢导出质子的速率大。

5. 发明授权

US06797151B2 CO sensor and method of measuring CO concentration 失效
标题翻译： CO传感器和测量CO浓度的方法
公开(公告)号：US06797151B2
公开(公告)日：2004-09-28
申请号：US10035248
申请日：2002-01-04
申请人： Norihiko Nadanami , Tomonori Kondo , Ryuji Inoue , Noboru Ishida , Takafumi Oshima
发明人： Norihiko Nadanami , Tomonori Kondo , Ryuji Inoue , Noboru Ishida , Takafumi Oshima
IPC分类号： G01N27407
CPC分类号： G01N27/4074 , G01N33/004
摘要： A CO sensor and a CO-concentration measurement method which enables accurate measurement of CO concentration irrespective of the hydrogen concentration of a gas under measurement. By applying a first predetermined voltage between first and second electrodes 7 and 8, hydrogen contained in a gas under measurement which has been introduced into a first measurement space 2 via a first diffusion-controlling section 1 dissociates, decomposes, or reacts with another element to generate protons. The thus-generated protons are transported from the first electrode 7 to the second electrode 8 via a first proton-conductive layer 5 or protons are transported from the second electrode 8 to the first electrode 7 via the first proton-conductive layer 5 (when the hydrogen concentration of the measurement gas is extremely low), so that the hydrogen concentration within the first measurement space 2 is controlled to a constant level. The gas under measurement having a controlled hydrogen concentration is introduced into a second measurement space 4 via a second diffusion-controlling section 3, and a second predetermined voltage is applied between third and fourth electrodes 9 and 10. The CO concentration of the gas under measurement is obtained based on current (a limiting proton current) which flows between the third and fourth electrodes 9 and 10. Alternatively, the CO concentration of the gas under measurement is obtained from electromotive force generated between the third and fourth electrodes 9 and 10.
摘要翻译：一种CO传感器和CO浓度测量方法，其能够精确测量CO浓度，而与测量的气体的氢浓度无关。通过在第一和第二电极7和8之间施加第一预定电压，通过第一扩散控制部分1被引入到第一测量空间2中的测量气体中所含的氢离子，分解或与其它元件反应产生质子。由此产生的质子经由第一质子传导层5从第一电极7传送到第二电极8，或者质子经由第一质子传导层5从第二电极8输送到第一电极7（当测量气体的氢浓度极低），使得第一测量空间2内的氢浓度被控制在一定水平。具有受控氢浓度的测量气体经由第二扩散控制部分3引入第二测量空间4，并且在第三和第四电极9和10之间施加第二预定电压。测量气体的CO浓度基于在第三和第四电极9和10之间流动的电流（限制质子电流）获得。或者，测量气体的CO浓度是从第三和第四电极9和10之间产生的电动势获得的。

6. 发明授权

US07189364B2 Hydrogen sensor 失效
标题翻译：氢传感器
公开(公告)号：US07189364B2
公开(公告)日：2007-03-13
申请号：US10119901
申请日：2002-04-11
申请人： Norihiko Nadanami , Tomonori Kondo , Masaya Watanabe , Ryuji Inoue , Noboru Ishida , Takafumi Oshima
发明人： Norihiko Nadanami , Tomonori Kondo , Masaya Watanabe , Ryuji Inoue , Noboru Ishida , Takafumi Oshima
IPC分类号： B32B5/02 , B32B27/04 , B32B27/12 , G01N27/00 , G01N7/00
CPC分类号： G01N33/005 , G01N27/4074 , Y10T436/11 , Y10T436/203332 , Y10T436/22 , Y10T436/25875
摘要： A hydrogen sensor includes a first electrode 3 and a second electrode 4 provided in contact with a proton conduction layer 2; a gas diffusion controlling portion 6 provided between a measurement gas atmosphere and the first electrode 3; and a support element (1a, 1b) for supporting the proton conduction layer 6, the first electrode 3, the second electrode 4, and the gas diffusion controlling portion 6. Hydrogen contained in a measurement gas introduced via the gas diffusion controlling portion 6 is dissociated, decomposed, or reacted by applying a voltage between the first electrode 3 and the second electrode 4 to thereby generate protons. Hydrogen concentration is obtained on the basis of a limiting current generated as a result of the generated protons being pumped out via the proton conduction layer 2 from the first electrode 3 side of the proton conduction layer to the second electrode 4 side of the proton conduction layer. Hydrogen concentration on the first electrode 2 is controlled to a partial pressure of not less than 10−12 atm, or more preferably, of not less than 3×10−12 atm and of less than 10−2 atm.
摘要翻译：氢传感器包括与质子传导层2接触而设置的第一电极3和第二电极4; 设置在测量气体气氛和第一电极3之间的气体扩散控制部分6; 以及用于支撑质子传导层6，第一电极3，第二电极4和气体扩散控制部分6的支撑元件（1a，1b）。通过气体扩散控制部分6导入的测量气体中所含的氢离子，分解或反应，通过在第一电极3和第二电极4之间施加电压从而产生质子。基于由生成的质子经由质子传导层2从质子传导层的第一电极3侧向质子传导层的第二电极4侧泵出的限制电流获得氢浓度。将第一电极2上的氢浓度控制在不低于大气压的分压，或者更优选不低于3×10 12大气压，以及小于10-2大气压。

7. 发明授权

US06533911B1 Device for measuring combustible-gas concentration in an exhaust gas 有权
标题翻译：用于测量废气中的可燃气体浓度的装置
公开(公告)号：US06533911B1
公开(公告)日：2003-03-18
申请号：US09590189
申请日：2000-06-09
申请人： Hiroki Fujita , Shoji Kitanoya , Kenji Kato , Tomohiro Fuma , Ryuji Inoue , Takafumi Oshima
发明人： Hiroki Fujita , Shoji Kitanoya , Kenji Kato , Tomohiro Fuma , Ryuji Inoue , Takafumi Oshima
IPC分类号： G01N27407
CPC分类号： G01N27/4075 , G01N27/4067
摘要： A device and method for measuring combustible-gas concentration and a device and method for measuring hydrocarbon-gas concentration, which exhibit low dependence on oxygen concentration variations as well as low temperature dependence. Paste is applied to the inner surface of a closed-bottom cylindrical solid electrolyte element, thereby forming a layer serving as a reference electrode. Plating with platinum is performed, so as to form a layer serving as a first detection electrode, on the outer surface of the solid electrolyte element only at a portion extending from an end portion of the solid electrolyte element to the vicinity of the interface between a heating resistor and a heating-resistor lead portion, which are formed within a heater element contained in the cylindrical solid electrolyte element. Paste which contains gold powder and 10 parts of indium oxide is applied onto the platinum-plating layer so as to form a layer serving as a second detection electrode, followed by firing. Subsequently, a diffusion layer containing spinel is formed by thermal spraying on the surface of a detection electrode. The heater element is disposed in the solid electrolyte element such that an end portion abuts an inner bottom portion of the solid electrolyte element. Lead wires for measuring internal resistance, which extend from the reference electrodes, and a lead wire extending from the detection electrode are connected to a temperature controller.
摘要翻译：用于测量可燃气体浓度的装置和方法以及测量烃 - 气体浓度的装置和方法，其对氧浓度变化的依赖性低以及低温依赖性。将糊状物施加到封闭底部的圆柱形固体电解质元件的内表面，从而形成用作参考电极的层。进行铂的电镀，以形成用作第一检测电极的层，仅在固体电解质元件的外表面上，仅在从固体电解质元件的端部延伸到位于固体电解质元件的界面附近的部分加热电阻器和加热电阻器引线部分，其形成在容纳在圆柱形固体电解质元件中的加热器元件内。将含有金粉末和10份氧化铟的浆料施加到铂镀层上，以形成用作第二检测电极的层，随后进行烧制。随后，通过热电喷涂在检测电极的表面上形成含有尖晶石的扩散层。加热器元件设置在固体电解质元件中，使得端部邻接固体电解质元件的内部底部。用于测量从参考电极延伸的内部电阻的引线和从检测电极延伸的引线连接到温度控制器。

8. 发明授权

US06337006B1 Lanthanum gallate sintered body 失效
标题翻译：没食子酸镓烧结体
公开(公告)号：US06337006B1
公开(公告)日：2002-01-08
申请号：US09499359
申请日：2000-02-08
申请人： Hiroki Fujita , Ryuji Inoue , Takafumi Oshima
发明人： Hiroki Fujita , Ryuji Inoue , Takafumi Oshima
IPC分类号： G01N27406
CPC分类号： C04B35/01 , G01N27/4073
摘要： Disclosed is an LaGaO3 sintered body which comprises lanthanum, gallium, oxygen and at least one of other elements, and has at least three crystal phases of different composition formula.
摘要翻译：公开了一种LaGaO 3烧结体，其包含镧，镓，氧和至少一种其它元素，并且具有不同组成式的至少三个结晶相。

9. 发明授权

US06344134B1 Method for measuring NOx concentration and NOx concentration sensor 有权
标题翻译： NOx浓度和NOx浓度传感器的测量方法
公开(公告)号：US06344134B1
公开(公告)日：2002-02-05
申请号：US09232001
申请日：1999-01-15
申请人： Tessho Yamada , Noboru Ishida , Toshitaka Matsuura , Yoshiro Noda , Nobuhiro Hayakawa , Norihiko Nadanami , Satoshi Sugaya , Takaki Otsuka , Masashi Ando , Takafumi Oshima
发明人： Tessho Yamada , Noboru Ishida , Toshitaka Matsuura , Yoshiro Noda , Nobuhiro Hayakawa , Norihiko Nadanami , Satoshi Sugaya , Takaki Otsuka , Masashi Ando , Takafumi Oshima
IPC分类号： G01N27407
CPC分类号： G01N27/417
摘要： An apparatus and method using a two-serial space sensor (having first and second internal spaces 2,3) for accurately measuring NOx concentration in gas, e.g., exhausted from an internal combustion engine. Both NOx (nitrogen oxide) and oxygen are forced to be partially dissociated in the first space 2 to an oxygen concentration level of 2×10−7 to 2×10−10 atm by pumping out oxygen from the first space 2. The NOx concentration is determined based on the second current measured in the second space 4 and based on the NO dissociation percentage in the first chamber which is 0.5-50%, or preferably 2-20%. The NOx measurement accuracy is further improved when the above oxygen concentration level is maintained from 2×10−8 to 2×10−9 and the temperature drift of the sensor is maintained within ±5° C. under a sensor temperature range of 700-900° C.
摘要翻译：一种使用两串联空间传感器（具有第一和第二内部空间2,3）的装置和方法，用于精确测量例如从内燃机排出的气体中的NOx浓度。通过从第一空间2中抽出氧，迫使NOx（氮氧化物）和氧在第一空间2中部分地离解为2x10-7至2×10-10大气压的氧浓度水平。基于在第二空间4中测量的第二电流，并且基于第一室中的NO解离百分比为0.5-50％，或优选2-20％。在700-900℃的传感器温度范围内，当上述氧气浓度水平保持在2×10 -8至2×10 -9，并且传感器的温度漂移保持在±5℃以内时，NOx测量精度进一步提高。

10. 发明授权

US06695964B1 Method and apparatus for measuring NOx gas concentration 有权
标题翻译：测量NOx气体浓度的方法和装置
公开(公告)号：US06695964B1
公开(公告)日：2004-02-24
申请号：US09588504
申请日：2000-06-07
申请人： Masashi Ando , Noboru Ishida , Satoshi Sugaya , Takafumi Oshima , Norihiko Nadanami , Takaki Ootuka , Yoshikuni Sato , Tatsuo Okumura
发明人： Masashi Ando , Noboru Ishida , Satoshi Sugaya , Takafumi Oshima , Norihiko Nadanami , Takaki Ootuka , Yoshikuni Sato , Tatsuo Okumura
IPC分类号： G01N27407
CPC分类号： G01N27/4074
摘要： Method and sensor for measuring accurate measurement of NOx concentration in an exhaust gas containing O2,H2O, CO2 and NOx and a NOx gas concentration sensor. A first oxygen pump cell sufficiently pumps out oxygen in a measurement gas such as not to decompose NOx. A pair of electrodes is provided on an inner side and an outer side of a second measurement chamber into which the gas is introduced from a first measurement chamber via a diffusion resistance. A voltage is impressed across the paired electrodes for decomposing NOx in the second measurement chamber to dissociate oxygen which causes the current to flow in a second oxygen ion pump cell. The NOx gas concentration is measured for this current. The voltage impressed across the paired electrodes of the second oxygen ion pump cell is set so as not to dissociate H2O and CO2 present in the second measurement chamber.
摘要翻译：用于测量含有O 2，H 2 O，CO 2和NO x以及NOx气体浓度传感器的废气中的NOx浓度的精确测量的方法和传感器。第一氧气泵电池在测量气体中充分抽出氧气，例如不分解NOx。一对电极设置在第二测量室的内侧和外侧，气体通过扩散阻力从第一测量室引入到该第二测量室中。在一对电极上施加电压，用于分解第二测量室中的NOx，以解离氧，这导致电流在第二氧离子泵电池中流动。测量该电流的NOx气体浓度。设置在第二氧离子泵电池的成对电极上施加的电压，以使第二测量室中不存在H 2 O和CO 2。

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