公开(公告)号：US06169275A

公开(公告)日：2001-01-02

申请号：US09325173

申请日：1999-06-03

申请人： Yoshiro Noda ,  Toshihiko Aoyama

发明人： Yoshiro Noda ,  Toshihiko Aoyama

IPC分类号： H05B310

CPC分类号： H05B3/286 ,  H05B3/141 ,  H05B3/265 ,  H05B3/283 ,  H05B2203/013 ,  H05B2203/017 ,  H05B2203/027

摘要： A ceramic heater with a specified ratio of electric resistance for the heat generating portion and the lead portion of a heat generating resistor is provided. The ceramic heater has a ceramic substrate comprising alumina as a main ingredient and a heat generating resistor composed only of tungsten, or a heat generating resistor comprising at least one of 3 to 30% by weight of alumina and 10 to 40% by weight of rhenium, and at least one of tungsten and molybdenum. Particularly, the ratio of the electric resistance can be controlled and the adhesion of ceramic substrates for sandwiching the heat generating resistor can be improved, for example, by means of disposing slits to the lead portion and/or changing ingredients constituting the lead portion. The ceramic heater is capable of reaching a predetermined temperature in a short time, has high adhesion between the heat generating resistor and ceramic substrates and excellent durability and can be used in an oxygen sensor.

摘要翻译： 提供了一种陶瓷加热器，其具有用于发热部分的电阻率和发热电阻器的引线部分的特定比率。 陶瓷加热器具有包括氧化铝作为主要成分的陶瓷基体和仅由钨组成的发热电阻，或者包含3至30重量％的氧化铝和10至40重量％的铼中的至少一种的发热电阻器 ，以及钨和钼中的至少一种。 特别地，可以控制电阻的比例，并且例如通过在引线部分上设置狭缝和/或改变构成引线部分的部件，可以改善用于夹持发热电阻器的陶瓷基板的粘附。 陶瓷加热器能够在短时间内达到预定温度，发热电阻与陶瓷基片之间的粘合性高，耐久性优异，可用于氧传感器。

公开(公告)号：US5753893A

公开(公告)日：1998-05-19

申请号：US815586

申请日：1997-03-12

申请人： Yoshiro Noda ,  Yoshiro Suematsu ,  Toshihiko Aoyama ,  Yoshitake Kawachi

发明人： Yoshiro Noda ,  Yoshiro Suematsu ,  Toshihiko Aoyama ,  Yoshitake Kawachi

IPC分类号： C04B35/111 ,  H05B3/14 ,  H05B3/18 ,  H05B3/10 ,  H05B3/38

CPC分类号： H05B3/18 ,  C04B35/111 ,  H05B3/141

摘要： An alumina-based sintered material for ceramic heater having a resistance heater embedded in its ceramic material. With the total amount of Al.sub.2 O.sub.3, SiO.sub.2, MgO and CaO being 100 wt %, the sintered material contains 91 to 97 wt % of Al.sub.2 O.sub.3, 1 to 8 wt % of SiO.sub.2, 0.2 to 1.2 wt % of MgO and 0.2 to 1.2 wt % of CaO, the total amount of MgO and CaO being 0.4 to 1.8 wt %, whereas, for the total amount of Al.sub.2 O.sub.3, MgO and CaO of 100 wt %, 0.1 to 15 wt % of (a) at least one of rare earth elements and groups IVa excluding Ti, Va and VIa of the Periodic Table are contained in the sintered material. In place of (a), 0.2 wt % or less of other elements (Na, K, Fe, Ti etc.) may also be contained in an amount not more than 0.2 wt %, calculated in terms of oxides.

摘要翻译： 一种用于陶瓷加热器的氧化铝基烧结材料，其具有嵌入其陶瓷材料中的电阻加热器。 Al2O3，SiO2，MgO，CaO的总量为100重量％时，烧结体的Al 2 O 3为91〜97重量％，SiO 2为1〜8重量％，MgO为0.2〜1.2重量％，MgO为0.2〜1.2重量％ 的CaO，MgO和CaO的总量为0.4〜1.8重量％，而对于Al 2 O 3，MgO和CaO的总量为100重量％，0.1〜15重量％的（a）稀土元素中的至少一种 除了周期表中的Ti，Va和VIa之外的组IVa包含在烧结材料中。 代替（a），根据氧化物计算，也可以含有0.2重量％以下的其他元素（Na，K，Fe，Ti等）的量不大于0.2重量％。

公开(公告)号：US6084220A

公开(公告)日：2000-07-04

申请号：US177648

申请日：1998-10-22

申请人： Yoshiro Suematsu ,  Kikuo Sakurai ,  Yoshiro Noda

发明人： Yoshiro Suematsu ,  Kikuo Sakurai ,  Yoshiro Noda

IPC分类号： H05B3/12 ,  F23Q7/00 ,  H05B3/14 ,  H05B3/18 ,  H05B3/28 ,  H05B3/40 ,  H05B3/48 ,  F23Q7/22

CPC分类号： F23Q7/001 ,  H05B3/12 ,  H05B3/141 ,  H05B3/283 ,  H05B3/46 ,  H05B2203/003 ,  H05B2203/013 ,  H05B2203/027

摘要： A ceramic heater has a structure in which a resistance heating element mainly composed of a metal having a high melting point is embedded in a ceramic substrate. With an average grain size for component grains of the ceramic substrate taken as dB and that for component grains of the resistance heating element taken as dH, a dH/dB ratio is adjusted to not greater than 0.8.

摘要翻译： 陶瓷加热器具有将主要由具有高熔点的金属组成的电阻加热元件嵌入陶瓷基板中的结构。 陶瓷基板的成分晶粒的平均晶粒尺寸为dB，电阻加热元件的元件晶粒的平均粒径为dH，将dH / dB比调节至不大于0.8。

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。

公开(公告)号：US5804050A

公开(公告)日：1998-09-08

申请号：US869414

申请日：1997-06-04

申请人： Nobuhiro Hayakawa ,  Syogo Kawajiri ,  Yoshiro Noda ,  Hiroshi Miyata ,  Satoshi Ishikawa ,  Shoji Akatsuka

发明人： Nobuhiro Hayakawa ,  Syogo Kawajiri ,  Yoshiro Noda ,  Hiroshi Miyata ,  Satoshi Ishikawa ,  Shoji Akatsuka

IPC分类号： G01N27/409 ,  G01N27/407 ,  G01N27/26 ,  G01N7/00

CPC分类号： G01N27/407

摘要： A shaft-like heating member is inserted into and fixed to an oxygen sensing element of a hollowed shaft-like member, together with of a terminal member. A heating portion is located at a portion of the heating member closer to the extreme end thereof. The surface of the heating portion is resiliently pressed on the element inner wall in a side-abutting fashion. In this case, a guide mainly gives rise to the elastic force. With such a side-abutting structure, heat generated in the heating portion is directly transferred to the oxygen sensing element, and heats it. Heat radiated from a portion in the vicinity of its contact position additively heats the oxygen sensing element. Temperature of the oxygen sensor quickly reaches an activation temperature.

摘要翻译： 轴状加热构件与端子构件一起插入并固定到中空轴状构件的氧气感测元件。 加热部分位于加热部件的靠近其末端的部分。 加热部分的表面以侧面邻接的方式弹性地压在元件内壁上。 在这种情况下，导轨主要产生弹性力。 利用这种侧向抵接结构，在加热部分中产生的热直接传递到氧气感测元件，并将其加热。 从其接触位置附近的部分辐射的热量加热氧传感元件。 氧传感器的温度快速达到活化温度。

公开(公告)号：US06676817B2

公开(公告)日：2004-01-13

申请号：US09497645

申请日：2000-02-03

申请人： Yoshiro Noda ,  Ryohei Aoki ,  Yutaka Adachi ,  Yoshiaki Kuroki ,  Takao Kojima ,  Sinya Awano ,  Koichi Imaeda

发明人： Yoshiro Noda ,  Ryohei Aoki ,  Yutaka Adachi ,  Yoshiaki Kuroki ,  Takao Kojima ,  Sinya Awano ,  Koichi Imaeda

IPC分类号： G01N27407

CPC分类号： G01N27/4073 ,  Y10T29/49002

摘要： A solid electrolyte layer or body capable of being co-fired with an insulating ceramic substrate or body to be used as a gas sensor laminate. The gas sensor laminate is preferably composed of an alumina substrate (1) and an oxygen-ion conductive solid electrolyte layer (6) bonded to the alumina substrate (1) by firing. The oxygen-ion conductive solid electrolyte layer or body is formed from partially or wholly stabilized zirconia, which layer contains alumina in an amount of 10% to 80% by weight, particularly 30% to 75% by weight. In this manner, another ceramic layer; particularly, a ceramic layer (7) of alumina can further be bonded to the oxygen-ion conductive solid electrolyte layer. The relative density of the ceramic layer can be 60% to 99.5%, preferably 80% to 99.5%.

摘要翻译： 能够与用作气体传感器层叠体的绝缘陶瓷基板或主体共烧的固体电解质层或主体。 气体传感器层叠体优选由氧化铝基板（1）和通过烧结而结合到氧化铝基板（1）的氧离子导电性固体电解质层（6）构成。 氧离子导电固体电解质层或主体由部分或全部稳定的氧化锆形成，该氧化锆层含有10重量％至80重量％，特别是30重量％至75重量％的氧化铝。 以这种方式，另一陶瓷层; 特别地，氧化铝的陶瓷层（7）可以进一步与氧离子传导性固体电解质层结合。 陶瓷层的相对密度可以为60％至99.5％，优选为80％至99.5％。

公开(公告)号：US07041207B2

公开(公告)日：2006-05-09

申请号：US10251751

申请日：2002-09-23

申请人： Yoshiro Noda ,  Ryohei Aoki ,  Yutaka Adachi ,  Yoshiaki Kuroki ,  Takao Kojima ,  Sinya Awano ,  Koichi Imaeda

发明人： Yoshiro Noda ,  Ryohei Aoki ,  Yutaka Adachi ,  Yoshiaki Kuroki ,  Takao Kojima ,  Sinya Awano ,  Koichi Imaeda

IPC分类号： G01N27/41 ,  G01N27/409

CPC分类号： G01N27/4073 ,  Y10T29/49002

摘要： A solid electrolyte layer or body capable of being co-fired with an insulating ceramic substrate or body to be used as a gas sensor laminate. The gas sensor laminate is preferably composed of an alumina substrate (1) and an oxygen-ion conductive solid electrolyte layer (6) bonded to the alumina substrate (1) by firing. The oxygen-ion conductive solid electrolyte layer or body is formed from partially or wholly stabilized zirconia, which layer contains alumina in an amount of 10% to 80% by weight, particularly 30% to 75% by weight. In this manner, another ceramic layer; particularly, a ceramic layer (7) of alumina can further be bonded to the oxygen-ion conductive solid electrolyte layer. The relative density of the ceramic layer can be 60% to 99.5%, preferably 80% to 99.5%.

摘要翻译： 能够与用作气体传感器层叠体的绝缘陶瓷基板或主体共烧的固体电解质层或主体。 气体传感器层叠体优选由氧化铝基板（1）和通过烧结而结合到氧化铝基板（1）的氧离子导电性固体电解质层（6）构成。 氧离子导电固体电解质层或主体由部分或全部稳定的氧化锆形成，该氧化锆层含有10重量％至80重量％，特别是30重量％至75重量％的氧化铝。 以这种方式，另一陶瓷层; 特别地，氧化铝的陶瓷层（7）可以进一步与氧离子传导性固体电解质层结合。 陶瓷层的相对密度可以为60％至99.5％，优选为80％至99.5％。

公开(公告)号：US4912305A

公开(公告)日：1990-03-27

申请号：US357786

申请日：1989-05-30

申请人： Kazuho Tatemasu ,  Yukihiro Kimura ,  Yoshiro Noda

发明人： Kazuho Tatemasu ,  Yukihiro Kimura ,  Yoshiro Noda

IPC分类号： H05B3/18 ,  C04B35/584 ,  F02B3/06 ,  F23Q7/00 ,  H05B3/14

CPC分类号： H05B3/141 ,  F23Q7/001 ,  F02B3/06

摘要： The invention relates to a ceramic heater element consisting of a sintered body of a silicon nitride base ceramic and a resistance heating wire such as a tungsten wire embedded in the ceramic body. The ceramic contains Al.sub.2 O.sub.3 and AlN besides Si.sub.3 N.sub.4 and is produced by using Y.sub.2 O.sub.3 as sintering aid. The ceramic body is improved in strength and also in stability of the ceramic structure at temperatures up to about 1300.degree. C. by rendering the grain boundary phase of the sintered ceramic a crystalline phase comprising either 2Y.sub.2 O.sub.3.Si.sub.2-x Al.sub.x N.sub.2-x O.sub.1-x (0.ltoreq.x

摘要翻译： 本发明涉及一种由氮化硅基陶瓷的烧结体和埋入陶瓷体中的诸如钨丝的电阻加热丝组成的陶瓷加热器元件。 该陶瓷除了Si 3 N 4以外含有Al 2 O 3和AlN，并且通过使用Y 2 O 3作为烧结助剂来制造。 通过使烧结陶瓷的晶界相包含2Y2O3.Si2-xAlxN2-xO1-x（0）的结晶相，陶瓷体的强度和陶瓷结构的稳定性在高达约1300℃的温度下得到改善。