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公开(公告)号：US20180245953A1
公开(公告)日：2018-08-30
申请号：US15755234
申请日：2016-08-08
Applicant: DENSO CORPORATION
Inventor： Seiji NISHIMOTO , Tomoyuki TAKIGUCHI , Yoshiyuki KONO , Akitoshi MIZUTANI
CPC classification number: G01D11/245 , G01D5/14 , G01D5/145 , G01R33/02 , H01L23/3107 , H01L23/3135
Abstract: A magnetic field detection device includes an IC package, a terminal, a resin mold member. The IC package includes a magnetism detection element, a lead frame located on a first side of the magnetism detection element, and a resin member covering the magnetism detection element and the lead frame. The resin mold member includes a base portion and a head portion. The head portion includes a thickest portion. An outer wall surface of the thickest portion located on a second side of the magnetism detection element is a detection reference surface. An element corresponding surface that is an outer wall surface of the IC package located on the second side is exposed to an outside of resin mold member or covered with a detection side thin portion thinner than a thickness from the element corresponding surface to the detection side reference surface.
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公开(公告)号：US20170345998A1
公开(公告)日：2017-11-30
申请号：US15603733
申请日：2017-05-24
Applicant: DENSO CORPORATION , TDK-MICRONAS GMBH
Inventor： Toshiyuki KOUMORI , Yoshiyuki KONO , Tomoyuki TAKIGUCHI , Yoshinori INUZUKA , Akitoshi MIZUTANI , Seiji NISHIMOTO , Camillo PILLA
CPC classification number: H01L43/04 , H01L23/48 , H01L43/065 , H01L43/14 , H01L2224/48247 , H01L2224/48257 , H01L2924/181 , H01L2924/00012
Abstract: A method for manufacturing semiconductor devices is provided. The method includes bonding a semiconductor element to a first surface of a planar lead frame, clamping a partial area of the lead frame to hold the lead frame and the semiconductor element in molding dies, and covering at least a part of the lead frame and the semiconductor element with a resin member by resin molding which fills the molding dies with resin. A thin-walled portion having a relative small thickness is previously formed on a shortest virtual line connecting a clamp area of the lead frame to an area where the semiconductor element is bonded.
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公开(公告)号：US20140103911A1
公开(公告)日：2014-04-17
申请号：US13966825
申请日：2013-08-14
Applicant: DENSO CORPORATION
Inventor： Hitomi HONDA , Akitoshi MIZUTANI , Yoshiyuki KONO
IPC: G01D5/14
Abstract: A rotation angle detection device has a first yoke, an inside surface of which is formed of a first concave curved surface and a second concave curved surface, and a second yoke, an inside surface of which is formed of a third concave curved surface and a fourth concave curved surface. Each concave curved surface does not extend in a second direction but extends toward a first flat surface or a second flat surface in an inclined manner. The first flat surface and the second flat surface face each other sandwiching a Hall element therebetween and are parallel to each other. The magnetic flux, which leaks from the first yoke into an inside space and reaches the second yoke, flows in the second direction over a wider area around the Hall element.
Abstract translation: 旋转角度检测装置具有第一磁轭，其内表面由第一凹曲面和第二凹曲面形成，第二磁轭的内表面由第三凹曲面和 第四凹曲面。 每个凹曲面不在第二方向上延伸，而是以倾斜的方式朝着第一平坦表面或第二平坦表面延伸。 第一平面和第二平面彼此面对，在其间夹着霍尔元件并且彼此平行。 从第一磁轭泄漏到内部空间并到达第二磁轭的磁通量在第二方向上在霍尔元件周围的较宽区域上流动。
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公开(公告)号：US20140012537A1
公开(公告)日：2014-01-09
申请号：US13935012
申请日：2013-07-03
Applicant: DENSO CORPORATION
Inventor： Takamitsu KUBOTA , Akitoshi MIZUTANI , Yoshiyuki KONO
CPC classification number: G01R33/02 , G01R3/00 , G01R33/072 , Y10T29/49004
Abstract: A position detection apparatus includes a magnetic generator, a magnetic detector, a storage, and a rotation angle calculator. The rotation angle calculator calculates a relative rotation angle of the magnetic generator with respect to the magnetic detector based on a voltage output from the magnetic detector and a relational expression of θ=sin−((VH−c)/V0)−b. In the relational expression, the relative rotation angle is defined as θ, the voltage output from the magnetic detector is defined as VH, a true maximum value of the voltage output from the magnetic detector is defined as V0, a first true correction value is defined as b, and a second true correction value is defined as c.
Abstract translation: 位置检测装置包括磁性发生器，磁性检测器，存储器和旋转角度计算器。 旋转角度计算器基于从磁检测器输出的电压和θ= sin - （（VH-c）/ V0）-b的关系式计算出磁发生器相对于磁检测器的相对旋转角度。 在关系式中，相对旋转角定义为θ，从磁检测器输出的电压定义为VH，将从磁检测器输出的电压的真实最大值定义为V0，定义第一真正校正值 作为b，第二真正校正值被定义为c。
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公开(公告)号：US20210054799A1
公开(公告)日：2021-02-25
申请号：US17091213
申请日：2020-11-06
Applicant: DENSO CORPORATION
Inventor： Akitoshi MIZUTANI , Noboru KITAHARA
Abstract: A gas flow rate measurement device includes a flow rate sensor that outputs a voltage that includes variations due to differences in an external environment and variations due to individual differences, a correction coefficient storage unit that stores a correction coefficient for correcting the output voltage of the flow rate sensor based on a corresponding relationship between the output voltage of the flow rate sensor and the flow rate of the gas, and a correction calculation unit that corrects the output voltage of the flow rate sensor by using the correction coefficient. The correction coefficient is a coefficient for directly converting the output voltage of the flow rate sensor into an ideal voltage value that does not include the variations due to the differences in the external environment and does not include the variations due to the individual differences in the flow rate sensor.
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Patent Agency Ranking
公开(公告)号：US20170292856A1
公开(公告)日：2017-10-12
申请号：US15441316
申请日：2017-02-24
Applicant: DENSO CORPORATION
Inventor： Tomoyuki TAKIGUCHI , Yoshiyuki KONO , Akitoshi MIZUTANI
Abstract: The present disclosure provides a rotational angle detecting device. An IC substrate has a flat surface extending along a rotational axis of a throttle valve. Yokes forms, together with the magnets, a closed magnetic circuit. A first Hall element outputs a first signal according to the magnetic flux density in a first direction along the flat surface. A second Hall element outputs a second signal according to the magnetic flux density in a second direction intersecting the flat surface. The first and second Hall elements are positioned within a region that is surrounded by the magnets and the yoke and that is between an edge surface and an edge surface.
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公开(公告)号：US20160123767A1
公开(公告)日：2016-05-05
申请号：US14922375
申请日：2015-10-26
Applicant: DENSO CORPORATION
Inventor： Hitomi HONDA , Akitoshi MIZUTANI , Yoshiyuki KONO
CPC classification number: G01D5/145
Abstract: A first opposing surface of a first yoke has a constant radius of curvature and has a center of curvature that lies on a center of rotation. At least two rotation direction end portions of a second opposing surface of the second yoke are formed such that toward either end in the rotation direction, the two end portions are increasingly spaced away from a reference curved surface in a direction away from the first opposing surface. The first and second opposing surfaces face each other to define a gap thereinbetween. Accordingly, the gap between the yokes is wider at its end portions than at its center, and increases in magnetic flux density flowing through a Hall element is curtailed at the end portions of the gap. Further, it is not necessary for the first yoke to protrude outward when widening the end portions of the gap.
Abstract translation: 第一轭的第一相对表面具有恒定的曲率半径并且具有位于旋转中心的曲率中心。 第二磁轭的第二相对表面的至少两个旋转方向的端部形成为使得朝着旋转方向的任一端，两个端部在远离第一相对表面的方向上与参考曲面间隔离得越来越远 。 第一和第二相对表面彼此面对以在其间限定间隙。 因此，轭部之间的间隙在其端部处比在其中心处更宽，并且在间隙的端部处限制流过霍尔元件的磁通密度的增加。 此外，当扩大间隙的端部时，第一磁轭不必向外突出。
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公开(公告)号：US20130320967A1
公开(公告)日：2013-12-05
申请号：US13904409
申请日：2013-05-29
Applicant: DENSO CORPORATION
Inventor： Hitomi HONDA , Akitoshi MIZUTANI , Yoshiyuki KONO
IPC: G01B7/30
Abstract: A rotation angle detection device includes a magnetic field generation section, a yoke, and a magnetism detection section. The magnetic field generation section has a first end portion and a second end portion. The yoke has such a tube shape that the magnetic field generation section and a rotation axis of a rotating body are located therein. The yoke has a gap at a part in a circumferential direction in a cross section perpendicular to the rotation axis. The magnetism detection section is disposed in the gap and outputs an electrical signal in accordance with a magnetic field strength in the gap. The magnetic field generation section is disposed in such a manner that a magnetic force line passing through the magnetic field generation section passes through the rotation axis regardless of the rotation angle of the rotating body and the rotation axis passes through the first end portion.
Abstract translation: 旋转角度检测装置包括磁场产生部，磁轭和磁性检测部。 磁场产生部具有第一端部和第二端部。 磁轭具有使磁场产生部分和旋转体的旋转轴线位于其中的管状。 轭在与旋转轴垂直的截面中在圆周方向的一部分具有间隙。 磁性检测部设置在间隙中，并根据间隙中的磁场强度输出电信号。 磁场产生部分以这样的方式设置，使得通过磁场产生部分的磁力线不管旋转体的旋转角度如何，通过旋转轴线，旋转轴线穿过第一端部。
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公开(公告)号：US20130106404A1
公开(公告)日：2013-05-02
申请号：US13663789
申请日：2012-10-30
Applicant: DENSO CORPORATION
Inventor： Akitoshi MIZUTANI , Naoaki KOUNO
IPC: G01B7/14
CPC classification number: G01B7/003
Abstract: A first and a second magnet are provided on a movable member so as to oppose to each other across a virtual plane. Each magnet is magnetized in a direction perpendicular to the movable member, so that the same magnetic poles of the magnets are opposed to each other. A hall IC is provided at a position more remote from the movable member than the magnets so as to be movable on the virtual plane relative to the movable member. A Y-parallel area is formed in a space equally distanced from the first and the second magnets, in which magnetic fields of the first and the second magnet rebel against each other, so that directions of the magnetic fields are so made to be in parallel to a stroke direction of the movable member. Robustness for a position gap between the magnets and the hall IC is improved.
Abstract translation: 第一和第二磁体设置在可移动部件上，以跨越虚拟平面彼此相对。 每个磁体在垂直于可动件的方向上被磁化，使得磁体的相同的磁极彼此相对。 霍尔IC设置在比磁体更远离可移动部件的位置，以能够相对于可移动部件在虚拟平面上移动。 在与第一和第二磁体等距离的空间中形成Y平行区域，其中第一和第二磁体的磁场相互反抗，使得磁场的方向成平行 到可移动部件的冲程方向。 提高了磁体与霍尔IC之间的位置间隙的鲁棒性。
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10.发明申请公开(公告)号：US20190277229A1
公开(公告)日：2019-09-12
申请号：US16424567
申请日：2019-05-29
Applicant: DENSO CORPORATION
Inventor： Akitoshi MIZUTANI , Yasushi GOKA
Abstract: A physical quantity measuring device is configured to measure a physical quantity of a fluid. The physical quantity measuring device includes: at least two humidity detection parts configured to output a humidity signal corresponding to a humidity of the fluid; and an abnormality determination part configured to determine that an abnormality has occurred in the humidity detection parts in response to that a difference between the humidity signals obtained from the two humidity detection parts exceeds an abnormality determination threshold.
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