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公开(公告)号：US10738905B2
公开(公告)日：2020-08-11
申请号：US16082664
申请日：2017-01-24
Applicant: SATAKE CORPORATION , MECHANO TRANSFORMER CORPORATION
Inventor： Takafumi Ito , Hironori Arii , Tadashi Matsushita , Sze Keat Chee , Takeshi Yano , Toshiro Higuchi
Abstract: A piezoelectric valve, having superior responsiveness during valve opening and capability to stabilize gas supply at an early stage, includes a gas pressure chamber receiving compressed gas and an exhaust path discharging the compressed gas from the gas pressure chamber; a valve disc placed in the gas pressure chamber to open and close the exhaust path; a piezoelectric element generating a driving force for operation of the valve disc, as a displacement; a displacement magnifying mechanism magnifying the displacement of the piezoelectric element and applying the magnified displacement to the valve disc; and driving means including a signal generator generating a signal including a first prepulse, a second prepulse, and a main pulse, applies a drive voltage to the piezoelectric element using the signal generated by the signal generator, as an input signal to a drive circuit, and drives and opens the valve disc by expanding the piezoelectric element.
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公开(公告)号：US12004430B2
公开(公告)日：2024-06-04
申请号：US17605914
申请日：2020-01-22
Applicant: SATAKE CORPORATION , MECHANO TRANSFORMER CORPORATION
Inventor： Takafumi Ito , Tadashi Matsushita , Toshiro Higuchi , Sze Keat Chee , Yoshinobu Mizuno
CPC classification number: H10N30/88 , F16K31/007 , F16K31/02 , F16K31/44 , H02N2/04 , H02N2/043 , H10N30/50 , H10N30/883 , F16K31/004 , H10N30/20
Abstract: Provided is a piezoelectric valve in which the valve is opened/closed utilizing a displacement of a laminated piezoelectric element, including: a valve main body having a gas pressure chamber that receives compressed gas supplied externally; and an actuator having a valving element, the laminated piezoelectric element that generates a driving force required for operating the valving element as the displacement, and a displacement enlarging mechanism that enlarges the displacement of the laminated piezoelectric element to be acted on the valving element, the actuator being disposed in the valve main body, in which a surface of the laminated piezoelectric element is coated with silicone in a state in which the laminated piezoelectric element is integrated into the actuator.
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3.发明申请PIEZOELECTRIC VALVE, AND OPTICAL PARTICULATE MATTER SORTER PROVIDED WITH AIR-BLOWING MEANS THAT USES PIEZOELECTRIC VALVE 有权压电阀，以及使用压电阀的空气吹扫装置提供的光学粒子分离器公开(公告)号：US20150060337A1
公开(公告)日：2015-03-05
申请号：US14395475
申请日：2013-04-16
Applicant: SATAKE CORPORATION , MECHANO TRANSFORMER CORPORATION
Inventor： Takafumi Ito , Teruhiko Takeuchi , Tadashi Matsushita , Sze Keat Chee , Takeshi Yano , Takeshi Kamima , Toshiro Higuchi
CPC classification number: B07B11/02 , B07B4/00 , B07B11/04 , F16K31/004 , F16K31/007
Abstract: A piezoelectric valve stably supplies gas even for a long gas ejection time, with a high responsivity to opening the valve, is provided. The piezoelectric valve, including a gas-pressure-chamber for receiving a compressed gas supplied from outside, a gas-discharge-channel through which the compressed gas is discharged from the gas-pressure-chamber, comprises: a valve body disposed in the gas-pressure-chamber and opens/closes the gas-discharge-channel; a piezoelectric element for producing a driving force to move the valve body as a displacement; a displacement-enlarging-mechanism for enlarging the displacement of the piezoelectric element to act on the valve body; and a driving unit having a signal-generating-unit for generating a signal comprising a pre-pulse and a main pulse and provides the signal generated by the signal-generating-unit to a driving circuit as an input signal to apply a driving voltage to the piezoelectric element to make the piezoelectric element expand and drive the valve body open.
Abstract translation: 提供了一种稳定地提供气体的气体，即使长时间的气体喷射时间也具有高的打开阀的响应性。 压电阀包括：用于接收从外部供应的压缩气体的气体压力室，压缩气体从气体压力室排出的气体放电通道，包括：设置在气体中的阀体 压力室，打开/关闭气体放电通道; 压电元件，用于产生作为位移移动阀体的驱动力; 用于扩大压电元件作用在阀体上的位移的位移扩大机构; 以及驱动单元，具有用于产生包括预脉冲和主脉冲的信号的信号发生单元，并且将由信号发生单元生成的信号提供给驱动电路作为输入信号，以将驱动电压施加到 使压电元件膨胀并驱动阀体打开的压电元件。
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4.发明授权公开(公告)号：US09114430B2
公开(公告)日：2015-08-25
申请号：US14395475
申请日：2013-04-16
Applicant: SATAKE CORPORATION , MECHANO TRANSFORMER CORPORATION
Inventor： Takafumi Ito , Teruhiko Takeuchi , Tadashi Matsushita , Sze Keat Chee , Takeshi Yano , Takeshi Kamima , Toshiro Higuchi
CPC classification number: B07B11/02 , B07B4/00 , B07B11/04 , F16K31/004 , F16K31/007
Abstract: A piezoelectric valve stably supplies gas even for a long gas ejection time, with a high responsivity to opening the valve, is provided. The piezoelectric valve, including a gas-pressure-chamber for receiving a compressed gas supplied from outside, a gas-discharge-channel through which the compressed gas is discharged from the gas-pressure-chamber, comprises: a valve body disposed in the gas-pressure-chamber and opens/closes the gas-discharge-channel; a piezoelectric element for producing a driving force to move the valve body as a displacement; a displacement-enlarging-mechanism for enlarging the displacement of the piezoelectric element to act on the valve body; and a driving unit having a signal-generating-unit for generating a signal comprising a pre-pulse and a main pulse and provides the signal generated by the signal-generating-unit to a driving circuit as an input signal to apply a driving voltage to the piezoelectric element to make the piezoelectric element expand and drive the valve body open.
Abstract translation: 提供了一种稳定地提供气体的气体，即使长时间的气体喷射时间也具有高的打开阀的响应性。 压电阀包括：用于接收从外部供应的压缩气体的气体压力室，压缩气体从气体压力室排出的气体放电通道，包括：设置在气体中的阀体 压力室，打开/关闭气体放电通道; 压电元件，用于产生作为位移移动阀体的驱动力; 用于扩大压电元件作用在阀体上的位移的位移扩大机构; 以及驱动单元，具有用于产生包括预脉冲和主脉冲的信号的信号产生单元，并且将由信号发生单元生成的信号提供给驱动电路作为输入信号，以将驱动电压施加到 使压电元件膨胀并驱动阀体打开的压电元件。
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5.发明授权公开(公告)号：US11982368B2
公开(公告)日：2024-05-14
申请号：US17615653
申请日：2020-03-06
Applicant: SATAKE CORPORATION , MECHANO TRANSFORMER CORPORATION
Inventor： Takafumi Ito , Tadashi Matsushita , Toshiro Higuchi , Sze Keat Chee , Kunio Ebihara , Toshitada Hirata
CPC classification number: F16K31/007 , F16K31/003 , F16K31/004 , H02N2/043 , H10N30/20
Abstract: Provided is a piezoelectric actuator that can reduce a risk of air leakage due to weakening of pressing force of a valve element against a valve seat surface and airtightness. The piezoelectric actuator is used for a piezoelectric valve that opens and closes a valve utilizing displacement of a laminated piezoelectric element. The piezoelectric actuator includes: a valve element; a laminated piezoelectric element that generates a driving force, required for operation of the valve element, as a displacement; and a displacement enlargement mechanism that enlarges a displacement of a laminated piezoelectric element and causes the enlarged displacement to act on the valve element. In the piezoelectric actuator, a surface of the valve element to be in contact with a valve seat of the piezoelectric valve is made flat and smooth in a state in which a tensile load is applied to the laminated piezoelectric element.
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Patent Agency Ranking
公开(公告)号：US11808373B2
公开(公告)日：2023-11-07
申请号：US17622620
申请日：2020-02-28
Applicant: SATAKE CORPORATION , MECHANO TRANSFORMER CORPORATION
Inventor： Takafumi Ito , Tadashi Matsushita , Toshiro Higuchi , Sze Keat Chee , Yoshinobu Mizuno , Toshitada Hirata
CPC classification number: F16K31/008 , F16K1/54 , F16K27/029 , F16K31/007 , F16K2200/50
Abstract: A piezoelectric valve includes: a valve main part including a gas pressure chamber receiving compressed gas supplied from outside; a plate inside the valve main part, and an actuator fixed to the plate and inside the valve main part, which is a case with an opening on a front surface. The plate includes a gas discharge path and a valve seat coming into contact with a valve element of the actuator opening and closing the gas discharge path. A lid member that closes the opening of the case has a gas discharge opening communicating with the gas discharge path of the plate; is welded and fixed to a front surface of the plate, where the gas discharge path opens, on an annular welded part surrounding the gas discharge opening; and is welded and fixed to an end surface of the case on an annular welded part on the outer peripheral part.
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公开(公告)号：US20160334028A1
公开(公告)日：2016-11-17
申请号：US15112544
申请日：2014-11-17
Applicant: SATAKE CORPORATION , MECHANO TRANSFORMER CORPORATION
Inventor： Takafumi Ito , Yoichi Kawamura , Tadashi Matsushita , Sze Keat Chee , Toshitada Hirata , Yoshinori Kawawa
CPC classification number: F16K27/12 , F15B13/0814 , F15B13/0821 , F15B13/0825 , F15B13/0839 , F16K27/00 , F16K27/003 , F16K27/0263 , F16K31/004
Abstract: A protruding section formed at the one side end of a connector section provided in a valve is inserted into a recessed section formed as part of a valve placement section of a fluid apparatus. The valve is caused to pivot with the inserted portion that serves as a supporting point, and an engaging section formed at the front end of a lever of a hook section formed at the other side end of the connector section is allowed to engage with an engaging protruding section formed as part of the valve placement section of the fluid apparatus. The valve is thus attached to the fluid apparatus.
Abstract translation: 形成在设置在阀中的连接器部分的一侧端处的突出部分被插入形成为流体装置的阀布置部分的一部分的凹部中。 使阀与作为支撑点的插入部枢转，并且形成在形成在连接器部的另一侧的钩部的杠杆的前端处的接合部被允许与接合部 突出部形成为流体装置的阀安置部的一部分。 因此，阀附接到流体装置。
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公开(公告)号：US09816638B2
公开(公告)日：2017-11-14
申请号：US15112544
申请日：2014-11-17
Applicant: Satake Corporation , Mechano Transformer Corporation
Inventor： Takafumi Ito , Yoichi Kawamura , Tadashi Matsushita , Sze Keat Chee , Toshitada Hirata , Yoshinori Kawawa
CPC classification number: F16K27/12 , F15B13/0814 , F15B13/0821 , F15B13/0825 , F15B13/0839 , F16K27/00 , F16K27/003 , F16K27/0263 , F16K31/004
Abstract: A protruding section formed at the one side end of a connector section provided in a valve is inserted into a recessed section formed as part of a valve placement section of a fluid apparatus. The valve is caused to pivot with the inserted portion that serves as a supporting point, and an engaging section formed at the front end of a lever of a hook section formed at the other side end of the connector section is allowed to engage with an engaging protruding section formed as part of the valve placement section of the fluid apparatus. The valve is thus attached to the fluid apparatus.
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公开(公告)号：US12222295B2
公开(公告)日：2025-02-11
申请号：US17781795
申请日：2020-12-14
Applicant: SATAKE CORPORATION
Inventor： Tomoyuki Miyamoto , Masaaki Sadamaru , Hiroaki Takeuchi , Tadashi Matsushita
Abstract: An optical sorter includes a first light source disposed on a first side, a second light source disposed on a second side, an optical sensor configured to detect light during a plurality of scan periods including a first scan period and a second scan period, a determination part configured to determine a foreign object and/or a defective product, and a light source control part. The light source control part is configured to control the first light source and the second light source during the first scan period so as to turn on the first light source and/or the second light source in a first lighting pattern, which is a lighting pattern arbitrarily selected from a lighting pattern in which the first light source and the second light source are at least partially on, a lighting pattern in which only one of the first light source and the second light source is at least partially on, and a lighting pattern in which only the other of the first light source and the second light source is at least partially on, and is also configured to control the first light source and the second light source during the second scan period so as to turn on the first light source and/or the second light source in a second lighting pattern, which is a lighting pattern selected arbitrarily except for the first lighting pattern.
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公开(公告)号：US12222292B2
公开(公告)日：2025-02-11
申请号：US18042685
申请日：2021-08-23
Applicant: SATAKE CORPORATION
Inventor： Tadashi Matsushita , Takuya Nishida , Masaaki Sadamaru
Abstract: An optical sorter includes a light source configured to irradiate a sorting target in transit on a conveyance route with light, an optical sensor configured to detect light emitted from the light source and associated with the sorting target, a determination portion configured to determine whether the sorting target is a foreign object and/or a defective product based on a signal acquired by the optical sensor with respect to the light associated with the sorting target, and at least one intermediate member disposed at a position located between the light source and the conveyance route in a direction in which the sorting target is irradiated with the light from the light source and located in such a manner that the intermediate member does not affect the detection of the light associated with the sorting target. The at least one intermediate member includes a reflection region on which the light emitted from the light source is reflected. The optical sensor is further configured to detect the light emitted from the light source and reflected on the reflection region.
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