公开(公告)号：US06781500B2

公开(公告)日：2004-08-24

申请号：US10139639

申请日：2002-05-07

申请人： Kazuhide Kawai ,  Masafuyu Sano ,  Shigeya Abe ,  Masahiro Inagaki ,  Hajime Kasai ,  Hidetoshi Nakashima ,  Jyunichi Wada ,  Koji Tsunenaga ,  Kazutoyo Osuka ,  Masahiko Aoyama ,  Takashi Tauchi ,  Kaneo Buma ,  Yoshitaka Sato ,  Katsunori Akimoto

发明人： Kazuhide Kawai ,  Masafuyu Sano ,  Shigeya Abe ,  Masahiro Inagaki ,  Hajime Kasai ,  Hidetoshi Nakashima ,  Jyunichi Wada ,  Koji Tsunenaga ,  Kazutoyo Osuka ,  Masahiko Aoyama ,  Takashi Tauchi ,  Kaneo Buma ,  Yoshitaka Sato ,  Katsunori Akimoto

IPC分类号： H01F2730

CPC分类号： H01F38/12 ,  H01F2038/122

摘要： In a stick coil, there is disclosed an ignition coil for an internal combustion engine which can prevent a crack (a collar leak) from being generated due to a thermal stress. In this ignition coil, the structure is made such that a size (L) of a portion which is in parallel to an axial direction of a primary spool (121) in a projection portion (121b) is larger than a size (T) of a portion which is in parallel to an orthogonal direction to the axial direction of the primary spool (121). Accordingly, a frontal projected area of the projection portion (121b) as seen from a flowing direction of a resin becomes small, a resin flow is hard to get out of order at a time when the resin flows through a portion corresponding to the projection portion (121b) at the forming time, and a convoluted void and a weld are hard to be generated. Accordingly, since it is possible to prevent a mechanical strength in a root portion of the projection portion (121b) from being reduced, it is possible to previously prevent a crack from being generated in the root portion of the projection portion (the collar portion) (121b) due to a thermal stress so as to reduce an insulating property.

摘要翻译： 在棒状线圈中，公开了一种用于内燃机的点火线圈，其可以防止由于热应力而产生裂纹（轴环泄漏）。 在该点火线圈中，该结构被制成使得与突起部分（121b）中的初级线轴（121）的轴向方向平行的部分的尺寸（L）大于 与主卷轴（121）的轴向的正交方向平行的部分。 因此，从树脂的流动方向看，突出部分（121b）的正面投影面积变小，在树脂流过与突起部分相对应的部分时，树脂流动难以变得不顺利 （121b），并且难以产生卷积的空隙和焊缝。 因此，由于可以防止突起部（121b）的根部的机械强度降低，所以能够防止在突起部（轴环部）的根部产生裂纹， （121b）由于热应力而降低绝缘性能。

公开(公告)号：US20140189717A1

公开(公告)日：2014-07-03

申请号：US13817936

申请日：2011-11-18

申请人： Asayuki Matsumura ,  Tomio Yamamoto ,  Akihiko Nishioka ,  Masahiro Inagaki

发明人： Asayuki Matsumura ,  Tomio Yamamoto ,  Akihiko Nishioka ,  Masahiro Inagaki

IPC分类号： G11B7/121

CPC分类号： G11B7/121 ,  G11B23/0021 ,  G11B23/0327

摘要： An optical disc device of the present invention comprises an insertion detection optical sensor which detects insertion of an optical disc based on light emitted from a first light emitting element to a first light receiving element being blocked, and an ejection detection optical sensor provided on the downstream side in the carry-in direction to the insertion detection optical sensor to detect ejection of the optical disc based on light emitted from a second light emitting element to a second light receiving element being blocked. The optical disc device is structured such that, in a state that the optical disc is attached onto the turntable, when the light of the first light emitting element is blocked and the light of the second light emitting element is not blocked, the optical disc device recognizes that a lens cleaner is attached onto the turntable as the optical disc, and the optical disc device performs a cleaning operation.

摘要翻译： 本发明的光盘装置包括：插入检测光学传感器，其基于从第一发光元件发射的光到被阻挡的第一受光元件检测光盘的插入;以及喷射检测光学传感器，设置在下游 一侧到插入检测光学传感器的携带方向，以基于从第二发光元件发射到被阻挡的第二光接收元件的光来检测光盘的喷射。 光盘装置的结构使得在光盘安装在转盘上的状态下，当第一发光元件的光被遮挡并且第二发光元件的光不被阻挡时，光盘装置 认识到透镜清洁器作为光盘附接到转台上，并且光盘装置执行清洁操作。

公开(公告)号：US07851974B2

公开(公告)日：2010-12-14

申请号：US12032465

申请日：2008-02-15

申请人： Bernhard Döllgast ,  Masahiro Inagaki ,  Harald Johannes Kastl ,  Atsushi Ochi ,  Takami Sakamoto ,  Carsten Schuh

发明人： Bernhard Döllgast ,  Masahiro Inagaki ,  Harald Johannes Kastl ,  Atsushi Ochi ,  Takami Sakamoto ,  Carsten Schuh

IPC分类号： H01L41/04 ,  H01L41/08

CPC分类号： H01L41/0838 ,  H01L41/273 ,  Y10T29/42

摘要： A piezoceramic multilayer actuator (10) has a plurality of piezoceramic layers (12), a security layer (20) and a plurality of inner electrodes (16, 18). The piezoceramic layers (12) has a piezoceramic first material sintered at a sintering temperature. The security layer (20) has a second material and is disposed between two piezoceramic layers (12). Each of the plurality of inner electrodes (16, 18) has a third material and is deposited between two piezoceramic layers (12). The degree of sintering of the second material is lower than the degree of sintering of the third material.

摘要翻译： 压电陶瓷多层致动器（10）具有多个压电陶瓷层（12），安全层（20）和多个内部电极（16,18）。 压电陶瓷层（12）具有在烧结温度下烧结的压电陶瓷第一材料。 安全层（20）具有第二材料并且设置在两个压电陶瓷层（12）之间。 多个内部电极（16,18）中的每一个具有第三材料并且沉积在两个压电陶瓷层（12）之间。 第二材料的烧结程度低于第三材料的烧结程度。

公开(公告)号：US07798794B2

公开(公告)日：2010-09-21

申请号：US11992700

申请日：2007-09-03

申请人： Yuya Izawa ,  Shinya Yamamoto ,  Masahiro Inagaki ,  Makoto Yoshikawa

发明人： Yuya Izawa ,  Shinya Yamamoto ,  Masahiro Inagaki ,  Makoto Yoshikawa

IPC分类号： F04C18/00 ,  F04C2/00

CPC分类号： F04C2/107 ,  F04C2/16

摘要： A cross section of a tooth profile of a first screw rotor (17) perpendicular to the rotor axis includes a tooth top arc (A1B1), a tooth bottom arc (C1D1), a first curve (A1C1), and a second curve (B1D1). The first curve (A1C1) is a first trochoidal curve that connects a first end (A1) of the tooth top arc (A1B1) to a second end (C1) of the tooth bottom arc (C1D1). The second curve (B1D1) connects the second end (B1) of the tooth top arc (A1B1) to the first end (D1) of the tooth bottom arc (C1D1). The second curve (B1D1) is a composite curve formed by an involute curve (B1E1) and a second trochoidal curve (E1D1), which extend continuously from each other at a first intersection point (E1). A screw pump (11) thus suppresses leakage of fluid with improved performance.

摘要翻译： 垂直于转子轴线的第一螺杆转子（17）的齿廓的横截面包括齿顶弧（A1B1），齿底弧（C1D1），第一曲线（A1C1）和第二曲线（B1D1 ）。 第一曲线（A1C1）是将齿顶弧（A1B1）的第一端（A1）与齿底弧（C1D1）的第二端（C1）连接的第一弯曲曲线。 第二曲线（B1D1）将齿顶弧（A1B1）的第二端（B1）与齿底弧（C1D1）的第一端（D1）连接。 第二曲线（B1D1）是通过在第一交点（E1）处彼此连续延伸的渐开线曲线（B1E1）和第二偏摆曲线（E1D1）形成的复合曲线。 因此，螺杆泵（11）能够以改进的性能来抑制流体泄漏。

公开(公告)号：US08704430B2

公开(公告)日：2014-04-22

申请号：US12376346

申请日：2007-08-06

申请人： Bernhard Döllgast ,  Masahiro Inagaki ,  Harald Johannes Kastl ,  Atsushi Ochi ,  Takami Sakamoto ,  Carsten Schuh

发明人： Bernhard Döllgast ,  Masahiro Inagaki ,  Harald Johannes Kastl ,  Atsushi Ochi ,  Takami Sakamoto ,  Carsten Schuh

IPC分类号： H01L41/083

CPC分类号： H01L41/273 ,  H01L41/0838

摘要： A piezoceramic multilayer actuator has a first sub-stack (12, 14, 16) with a plurality of piezoceramic layers (22) and at least one internal electrode (24, 26), the piezoceramic layers (22) and the at least one internal electrode (24, 26) being laminated in an alternating manner, a second sub-stack (12, 14, 16) has a plurality of piezoceramic layers (22) and at least one internal electrode (24, 26), the piezoceramic layers (22) and the at least one internal electrode (24, 26) being laminated in an alternating manner, and a connection layer (40) arranged between the first sub-stack (12, 14, 16) and the second sub-stack (12, 14, 16), wherein the connection layer (40) is set up by a multitude of single connection points or connection lines (44) or other connection regions.

摘要翻译： 压电陶瓷多层致动器具有具有多个压电陶瓷层（22）和至少一个内部电极（24,26）的第一子堆叠（12,14,16），所述压电陶瓷层（22）和所述至少一个内部 电极（24,26）以交替的方式层压，第二子堆叠（12,14,16）具有多个压电陶瓷层（22）和至少一个内部电极（24,26），所述压电陶瓷层 22）和所述至少一个内部电极（24,26）以交替的方式层叠，以及布置在所述第一子堆叠（12,14）和所述第二子堆叠（12）之间的连接层（40） ，14,16），其中所述连接层（40）由多个单个连接点或连接线（44）或其它连接区域设置。

公开(公告)号：US08339018B2

公开(公告)日：2012-12-25

申请号：US12602076

申请日：2008-05-29

申请人： Masahiro Inagaki ,  Takeshi Okamura ,  Tomohiro Kawamoto

发明人： Masahiro Inagaki ,  Takeshi Okamura ,  Tomohiro Kawamoto

IPC分类号： H01L41/083

CPC分类号： F02M51/0603 ,  H01L41/0471 ,  H01L41/0477 ,  H01L41/0838 ,  H01L41/257 ,  H01L41/273

摘要： Provided is a highly durable laminated piezoelectric element wherein a stress generated at a portion, i.e., the boundary between an active region and inactive region, is reduced. A method for manufacturing such laminated piezoelectric element is also provided. The laminated piezoelectric element has a laminated structure (15) wherein a plurality of piezoelectric layers (11) and internal electrode layers (13) are alternately laminated. The piezoelectric layer (11) contains a metal element other than those elements constituting piezoelectric ceramic, i.e., the main component of the piezoelectric layer (11), and at a portion (11a) of the piezoelectric layer (11) at the vicinity of an end of the internal electrode layer (13), metal particles having a metal element as a main component exist. The content of the metal at the portion (11a) at the vicinity of the end is higher than the content of a compound of the metal element and a nonmetal element.

摘要翻译： 提供了一种高度耐用的层压压电元件，其中在一部分产生的应力，即有源区域和非活性区域之间的边界产生的应力减小。 还提供了一种制造这种叠层压电元件的方法。 叠层型压电元件具有层叠结构（15），其中多个压电层（11）和内部电极层（13）交替层叠。 压电体层11除了构成压电陶瓷的构成要素以外的金属元素，即压电体层11的主要成分，压电体层11的附近的压电层11的部分11a。 内部电极层（13）的端部存在金属元素作为主要成分的金属粒子。 在端部附近的部分（11a）处的金属含量高于金属元素和非金属元素的化合物的含量。

公开(公告)号：US20120280057A1

公开(公告)日：2012-11-08

申请号：US13511212

申请日：2010-10-28

申请人： Shinsaku Satoi ,  Masahiro Inagaki ,  Katsuhiko Hanada

发明人： Shinsaku Satoi ,  Masahiro Inagaki ,  Katsuhiko Hanada

IPC分类号： B05B1/08 ,  H01L41/083

CPC分类号： H01L41/0472 ,  F02M51/0603 ,  H01L41/0838

摘要： A multi-layer piezoelectric element includes a stacked body including piezoelectric layers and internal electrode layers, which are alternately stacked; an external electrode layer attached to a side surface of the stacked body, the external electrode layer being elongated in a stacking direction of the stacked body and electrically connected with ends of the internal electrode layers which are exposed on the side surface; and an external electrode plate bonded to the external electrode layer therealong by an electrically conducting bonding material. The external electrode plate is provided with slits which extend from opposite long sides toward a center thereof in such a manner that tips of the respective slits overlap each other when viewed in the stacking direction of the stacked body, and a portion thereof where the tips of the respective slits overlap each other is provided with a hole extending along an extension direction of the slit.

摘要翻译： 层叠型压电元件包括​​交替层叠的包含压电层和内部电极层的层叠体; 外部电极层，其附着在所述层叠体的侧面，所述外部电极层在所述层叠体的层叠方向上呈细长状并且与所述内侧电极层的露出在所述侧面的端部电连接; 以及通过导电性接合材料与外部电极层接合的外部电极板。 外部电极板设置有从相对的长边朝向其中心延伸的狭缝，使得当层叠体的层叠方向观察时，各狭缝的顶端彼此重叠，并且其一部分 各狭缝彼此重叠设置有沿着狭缝的延伸方向延伸的孔。

公开(公告)号：US07948150B2

公开(公告)日：2011-05-24

申请号：US12031385

申请日：2008-02-14

申请人： Bernhard Döllgast ,  Masahiro Inagaki ,  Harald Johannes Kastl ,  Atsushi Ochi ,  Takami Sakamoto ,  Carsten Schuh

发明人： Bernhard Döllgast ,  Masahiro Inagaki ,  Harald Johannes Kastl ,  Atsushi Ochi ,  Takami Sakamoto ,  Carsten Schuh

IPC分类号： H01L41/053

CPC分类号： H01L41/273 ,  H01L41/0838 ,  H01L41/1876

摘要： A piezoceramic multilayer actuator (10) includes a plurality of green layers, wherein the green layers are to be converted to piezoceramic layers (12) with a piezoceramic material in a subsequent step of heating. A security layer material mixture with a second material (32) and particles (30) embedded in the second material (32) is provided, wherein the particles (30) have a third material different from the first material and different from the second material (32). The security layer material mixture is laminated between two piezoceramic layers (12), thereby forming a green stack. The green stack is heated to a sintering temperature, wherein the green layers are converted to the piezoceramic layers (12), and wherein a chemical reaction of the third material degrades the mechanical connection of the piezoceramic layers (12) by the security layer (20).

摘要翻译： 压电陶瓷多层致动器（10）包括多个绿色层，其中在随后的加热步骤中，将绿色层用压电陶瓷材料转换成压电陶瓷层（12）。 提供了具有第二材料（32）和嵌入第二材料（32）中的颗粒（30）的安全层材料混合物，其中所述颗粒（30）具有不同于第一材料并且不同于第二材料 32）。 将安全层材料混合物层压在两个压电陶瓷层（12）之间，由此形成一个绿色叠层。 将绿色叠层加热至烧结温度，其中绿色层转变为压电陶瓷层（12），并且其中第三材料的化学反应降低了压电陶瓷层（12）与安全层（20）的机械连接 ）。

公开(公告)号：US20100233006A1

公开(公告)日：2010-09-16

申请号：US12159186

申请日：2006-12-26

申请人： Shinya Yamamoto ,  Ryosuke Koshizaka ,  Kentaro Ishihara ,  Masahiro Inagaki ,  Yuya Izawa

发明人： Shinya Yamamoto ,  Ryosuke Koshizaka ,  Kentaro Ishihara ,  Masahiro Inagaki ,  Yuya Izawa

IPC分类号： F01C1/18

CPC分类号： F04C29/025 ,  F04C18/16 ,  F04C29/023 ,  F04C29/04 ,  F04C2220/10

摘要： A vacuum pump includes rotary shafts connected to a pair of screw-type rotors, respectively, and a pair of shaft retainers extending in the housing. Each shaft retainer supports the corresponding rotary shaft by means of a proximal bearing portion and a distal bearing portion. Each pair of the proximal and distal bearing portions are fixed in the axial direction with respect to the corresponding rotary shaft and shaft retainer. Lubricant oil is stored in an oil storage space in a gear case attached to the housing. A cooling water passage through which cooling water to cool the lubricant oil passes is formed in the gear case. A controller controls the flow rate of the cooling fluid, so that the temperature of the lubricant oil in the oil storage space is kept constant. With this configuration, when the bearing portions are fixed in the axial direction with respect to the rotary shafts and the shaft retainers, it is possible to prevent load from being applied to the bearing portions in the axial direction.

摘要翻译： 真空泵包括分别连接到一对螺杆式转子的旋转轴和在壳体中延伸的一对轴保持器。 每个轴保持器通过近侧轴承部分和远侧轴承部分支撑相应的旋转轴。 每对近端和远端轴承部分相对于相应的旋转轴和轴保持器沿轴向固定。 润滑油储存在附接到壳体的齿轮箱中的储油空间中。 在齿轮箱中形成有用于冷却润滑油的冷却水通过的冷却水通道。 控制器控制冷却流体的流量，使得储油空间中的润滑油的温度保持恒定。 利用这种构造，当轴承部分相对于旋转轴和轴保持器沿轴向方向固定时，可以防止在轴向方向上对轴承部分施加负载。

公开(公告)号：US07484943B2

公开(公告)日：2009-02-03

申请号：US11891532

申请日：2007-08-09

申请人： Yuya Izawa ,  Shinya Yamamoto ,  Masahiro Inagaki ,  Makoto Yoshikawa

发明人： Yuya Izawa ,  Shinya Yamamoto ,  Masahiro Inagaki ,  Makoto Yoshikawa

IPC分类号： F04C2/00 ,  F04C11/00 ,  F04C23/00

CPC分类号： F04C18/084 ,  F04C18/16

摘要： A screw pump includes a housing and a pair of intermeshing screw rotors. The housing has an inlet port and an outlet port. Each rotor has a first portion whose lead angle decreases. The first portion and the housing form an inlet space and a pump space. Winding angle of the first portion has a first region and a second region. The first region is located in a predetermined range from the end on the first portion adjacent to the inlet port toward the outlet port. The second region is located adjacent to the first region. Reduction rate of the lead angle of the first portion in the first region is set smaller than that in the second region. The maximum lead angle of the first portion is set smaller than a lead angle which decreases at a constant rate in the first region and the second region.

摘要翻译： 螺杆泵包括壳体和一对相互啮合的螺杆转子。 壳体具有入口和出口。 每个转子具有引导角减小的第一部分。 第一部分和壳体形成入口空间和泵空间。 第一部分的卷绕角度具有第一区域和第二区域。 第一区域位于与入口相邻的第一部分的端部朝向出口的预定范围内。 第二区域位于第一区域附近。 第一区域中的第一部分的引导角的减小率被设定为小于第二区域的降低率。 第一部分的最大引导角被设定为小于在第一区域和第二区域以恒定速率减小的引导角。