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公开(公告)号：US10041674B2
公开(公告)日：2018-08-07
申请号：US15252467
申请日：2016-08-31
发明人： Hiroki Takeuchi , Yoshihito Ikai
摘要： A ceramic heater includes a substrate containing a ceramic, and a resistor containing another ceramic and embedded in the substrate. The resistor includes two lead portions, a joint portion connecting the two lead portions, and an electrode portion formed integrally with at least one lead portion and extending in a direction crossing an axial line of the one lead portion. The electrode portion has a base end portion connected to the one lead portion, a distal end portion exposed at an outer surface of the substrate, and a connection portion disposed between the base end portion and the distal end portion and connecting the base end portion and the distal end portion together. A cross section of either the base end portion, the distal end portion, and the connection portion has an imaginary plane perpendicular to an extension direction of the electrode portion and has a streamline shape.
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公开(公告)号：US10557451B2
公开(公告)日：2020-02-11
申请号：US15252391
申请日：2016-08-31
发明人： Hiroki Takeuchi , Yoshihito Ikai
摘要： A ceramic heater includes a substrate containing a ceramic, and a resistor containing another ceramic and embedded in the substrate. The resistor includes two lead portions, a joint portion that connects the two lead portions, an electrode portion formed integrally with at least one lead portion, having one end portion connected to the one lead portion, extending in a direction crossing an axis of the one lead portion, and having the other end portion exposed at the surface of the substrate. In a cross section of the electrode portion taken along an imaginary plane passing through the axis of the one lead portion and parallel to an extending direction of the electrode portion, 0.1≤A/B≤0.8 is satisfied, where A is the length of the other end portion parallel to the axis, and B is the length of the one end portion parallel to the axis.
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公开(公告)号：US09655170B2
公开(公告)日：2017-05-16
申请号：US14325846
申请日：2014-07-08
发明人： Yoshihito Ikai , Ryo Suzuki , Yutaka Sekiguchi
CPC分类号： H05B3/48 , B28B11/00 , F23Q7/001 , F23Q2007/004 , H05B2203/027 , Y10T29/49083
摘要： A ceramic heater wherein in at least one cross section of the ceramic heater orthogonal to the axial direction, a first resistor cross section has no protrusion on a first inner portion of the contour of a first resistor cross section, and has two or more protrusions on a first outer portion of the contour of the first resistor cross section and a method of manufacturing the ceramic heater.
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