公开(公告)号：US3958209A

公开(公告)日：1976-05-18

申请号：US547095

申请日：1975-02-04

申请人： Kazuya Soda ,  Naoto Miwa

发明人： Kazuya Soda ,  Naoto Miwa

IPC分类号： C04B35/12 ,  C04B35/111 ,  H01C7/04

CPC分类号： C04B35/111 ,  H01C7/043

摘要： Thermistors having a resistor which comprises aluminum oxide (Al.sub.2 O.sub.3) and chromium oxide (Cr.sub.2 O.sub.3) are excellent in heat resistance even when they are used at a high temperature of 400.degree. - 1,100.degree.C. Proportion of Al.sub.2 O.sub.3 and Cr.sub.2 O.sub.3 is preferably 11 mol % of Cr.sub.2 O.sub.3 and 89 mol % - 6 mol % of Al.sub.2 O.sub.3. Furthermore, calcium oxide and silicon oxide may be added to accelerate the sintering of the Al.sub.2 O.sub.3 and Cr.sub.2 O.sub.3. In addition, manganese oxide or titamium oxide may be contained in the resistor for more accurate control of temperature.

公开(公告)号：US07253697B2

公开(公告)日：2007-08-07

申请号：US11551774

申请日：2006-10-23

申请人： Kazuya Soda ,  Takashi Kawanami

发明人： Kazuya Soda ,  Takashi Kawanami

IPC分类号： H01P1/36

CPC分类号： H01P1/387 ,  H01P1/36

摘要： A two-port isolator includes a first center electrode and a second center electrode which are wound around a ferrite to which a direct-current magnetic field is applied from permanent magnets, and the ferrite is mounted on a circuit board having built-in matching circuit devices. The ferrite is preferably substantially rectangular-parallelepiped-shaped having first and second principal surfaces that are substantially parallel to each other, and the long-side length of the principal surfaces is about 1.5 to about 5 times the short-side length. The second center electrode is wound between one and four turns around the ferrite.

摘要翻译： 双端口隔离器包括第一中心电极和第二中心电极，其缠绕在从永磁体施加直流磁场的铁氧体上，铁氧体安装在具有内置匹配电路的电路板上 设备。 铁素体优选为具有大致平行六面体形状的第一和第二主表面，其基本上彼此平行，并且主表面的长边长度为短边长度的约1.5至约5倍。 第二个中心电极在铁素体周围缠绕在四周之间。

公开(公告)号：US4177112A

公开(公告)日：1979-12-04

申请号：US890903

申请日：1978-03-27

申请人： Masatosi Suzuki ,  Kazuya Soda ,  Yasuo Nakamura

发明人： Masatosi Suzuki ,  Kazuya Soda ,  Yasuo Nakamura

IPC分类号： G01N27/407 ,  G01N27/58

CPC分类号： G01N27/4075 ,  G01N27/407 ,  G01N27/4077

摘要： An oxygen concentration detector comprises an oxygen concentration sensor made of an oxygen ion conductive metal oxide which produces an electromotive force in accordance with a difference between an oxygen concentration in gas components of a gas under test and an oxygen concentration in a reference gas, an electrode formed on a surface of the oxygen concentration sensor which is to be exposed to the gas under test and an electrode formed on a surface of the oxygen concentration sensor which is to be exposed to the reference gas so that the electromotive force produced by the oxygen concentration sensor is taken across the electrodes, a first porous coating of a refractory metal oxide formed on the surface of the electrode which is to be exposed to the gas under test, said first coating having a number of pores through which the gas under test can pass, and a second porous coating of a refractory metal oxide formed on the surface of the first coating, said second coating having a number of pores which are larger than the pores of the first coating.

摘要翻译： 氧浓度检测器包括由氧离子导电金属氧化物制成的氧浓度传感器，其根据被测气体的气体成分中的氧浓度与参考气体中的氧浓度之间的差产生电动势，电极 形成在要暴露于待测气体的氧浓度传感器的表面上，以及形成在要暴露于参考气体的氧浓度传感器的表面上的电极，使得由氧浓度产生的电动势 传感器穿过电极，形成在要暴露于被测气体的电极表面上的难熔金属氧化物的第一多孔涂层，所述第一涂层具有多个孔，待测气体可以通过该孔 以及形成在第一涂层的表面上的难熔金属氧化物的第二多孔涂层，所述第二涂层具有麻木 的孔比第一涂层的孔大。

公开(公告)号：US20070046390A1

公开(公告)日：2007-03-01

申请号：US11551774

申请日：2006-10-23

申请人： Kazuya Soda ,  Takashi Kawanami

发明人： Kazuya Soda ,  Takashi Kawanami

IPC分类号： H01P1/36

CPC分类号： H01P1/387 ,  H01P1/36

摘要： A two-port isolator includes a first center electrode and a second center electrode which are wound around a ferrite to which a direct-current magnetic field is applied from permanent magnets, and the ferrite is mounted on a circuit board having built-in matching circuit devices. The ferrite is preferably substantially rectangular-parallelepiped-shaped having first and second principal surfaces that are substantially parallel to each other, and the long-side length of the principal surfaces is about 1.5 to about 5 times the short-side length. The second center electrode is wound between one and four turns around the ferrite.

摘要翻译： 双端口隔离器包括第一中心电极和第二中心电极，其缠绕在从永磁体施加直流磁场的铁氧体上，铁氧体安装在具有内置匹配电路的电路板上 设备。 铁素体优选为具有大致平行六面体形状的第一和第二主表面，其基本上彼此平行，并且主表面的长边长度为短边长度的约1.5至约5倍。 第二个中心电极在铁素体周围缠绕在四周之间。