公开(公告)号：US20100134237A1

公开(公告)日：2010-06-03

申请号：US12707049

申请日：2010-02-17

Applicant: Tadamasa MIURA

Inventor： Tadamasa MIURA

IPC: H01C7/00

CPC classification number: H01C7/043 ,  C04B35/016 ,  C04B35/63488 ,  C04B2235/3215 ,  C04B2235/3227 ,  C04B2235/3263 ,  C04B2235/6025 ,  C04B2235/79 ,  H01C7/008 ,  H01C17/06533

Abstract: A NTC thermistor which has superior linearity of resistance-temperature characteristic is provided without depending on a combination of two or more kinds of material but with a single semi-conductive ceramic material. As the semi-conductive ceramic material of negative resistance-temperature characteristic is a ceramic body constituting a NTC thermistor being an oxide expressed by the formula AMnyOz in which y is 0.8 to 1.6, A is a combination of rare earth element and barium and the content of barium in A is 60 to 75 mol % when y=0.8 to 1.5, and 50 to 63 mol % y=1.7 to 2.3, and z is a value which maintains the electric neutrality of the oxide. A preferable oxide is of the formula (La1-αBaα)MnyOz in which when y=0.8 to 1.5, 0.60≦α≦0.75, and when y=1.7 to 2.3, 0.50≦α≦0.63.

Abstract translation: 提供具有优异的电阻温度特性线性的NTC热敏电阻，而不依赖于两种或更多种材料的组合，而是与单个半导体陶瓷材料组合。 由于负电阻温度特性的半导体陶瓷材料是构成NTC热敏电阻的陶瓷体，其是由式为AmnyOz（其中y为0.8至1.6）表示的氧化物，A是稀土元素和钡的组合，并且含量 当y = 0.8〜1.5，50〜63摩尔％y = 1.7〜2.3时，A中的钡为60〜75摩尔％，z为维持氧化物电中性的值。 优选的氧化物具有式（La1-αBaα）MnyOz，其中当y = 0.8至1.5,0.60＆lt; lE;α＆nlE; 0.75时，当y = 1.7至2.3,0.50＆lt; lE;α＆nlE; 0.63时。

公开(公告)号：US20080048821A1

公开(公告)日：2008-02-28

申请号：US11835272

申请日：2007-08-07

Applicant: Tadamasa MIURA ,  Shinichiro NAWAI

Inventor： Tadamasa MIURA ,  Shinichiro NAWAI

IPC: H01C7/04

CPC classification number: C04B35/016 ,  B32B2311/08 ,  C04B35/01 ,  C04B35/6262 ,  C04B35/6263 ,  C04B2235/3232 ,  C04B2235/3263 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3277 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/6025 ,  C04B2235/763 ,  C04B2235/77 ,  C04B2235/96 ,  C04B2235/9669 ,  C04B2237/34 ,  C04B2237/408 ,  H01C1/148 ,  H01C7/041 ,  H01C7/043 ,  H01C7/045 ,  H01C7/18

Abstract: A surface-mount negative-characteristic thermistor includes a ceramic body composed of a semiconductor ceramic material including at least one of Mn, Ni, and Ti; external electrodes disposed on surfaces of the ceramic body; and plating films disposed on surfaces of the external electrodes. When the molar quantity of Mn in the semiconductor ceramic material is represented by a and when the molar quantity of Ni in the semiconductor ceramic material is represented by b, the molar ratio of Mn to Ni is in the range of 55/45≦a/b≦90/10, and when the total molar quantity of Mn and Ni in the semiconductor ceramic material is defined as 100 parts by mole, the content of Ti is in the range of about 0.5 parts by mole to about 25 parts by mole.

Abstract translation: 表面安装负特性热敏电阻包括由包括Mn，Ni和Ti中的至少一种的半导体陶瓷材料构成的陶瓷体; 设置在陶瓷体的表面上的外部电极; 以及设置在外部电极的表面上的镀膜。 当半导体陶瓷材料中的摩尔量由a表示时，并且当半导体陶瓷材料中的Ni的摩尔量表示为b时，Mn与Ni的摩尔比在55/45 <= a / b <= 90/10，并且当半导体陶瓷材料中的Mn和Ni的总摩尔量定义为100份摩尔时，Ti的含量在约0.5份摩尔至约25份的范围内 痣。