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1. 发明申请

US20190280627A1 POWER GENERATION DEVICE 审中-公开
公开(公告)号：US20190280627A1
公开(公告)日：2019-09-12
申请号：US16426440
申请日：2019-05-30
申请人： DENSO CORPORATION , TOHOKU UNIVERSITY
发明人： Yoichiro SUZUKI , Akira TAKAOKA , Takatoshi SEKIZAWA , Hiroki KUWANO
IPC分类号： H02N2/18 , H02N2/00
摘要： A power generation device is provided. A weight may vibrate in one direction as an axial direction in response to an external vibration. A beam may be arranged in at least one side with respect to the weight in the axial direction of the weight, and vibrate together with the weight. A piezoelectric element may be mounted on the beam. A guide may include a hollow guiding a movement of the weight in the axial direction. A stopper may be included in the weight. The stopper may restrict an amount of the movement of the weight in the axial direction within a predetermined amount. A stopper wall may stop the movement of the weight in the axial direction by contacting with the stopper.

2. 发明申请

US20160285391A1 ELECTROSTATIC INDUCTION-TYPE VIBRATION POWER GENERATION DEVICE AND METHOD OF MANUFACTURING THE SAME 有权
标题翻译：静电感应型振动发电装置及其制造方法
公开(公告)号：US20160285391A1
公开(公告)日：2016-09-29
申请号：US14777779
申请日：2014-03-14
申请人： TOHOKU UNIVERSITY
发明人： Haruhiko ASANUMA , Hiroyuki OGUCHI , Motoaki HARA , Hiroki KUWANO
IPC分类号： H02N1/08 , H01L41/22 , H01L37/02 , H02N2/18
CPC分类号： H02N1/08 , H01L37/02 , H01L41/22 , H02N2/18
摘要： An electrostatic induction-type vibration power generation device for improving a power generation amount, and extracting an external electric field from a spontaneous polarization electret and method of manufacturing the same. A pair of conductive plates is disposed with a gap therebetween. A charged body formed of a spontaneous polarization electret having predetermined thickness has a positively charged lower surface and negatively charged upper surface. The charged body is between conductive plates in contact with one conductive plate. The gap between conductive plates is displaced in a direction vertical to the surfaces of the spontaneous polarization electret, whereby an electrostatic capacitance changes and electric power is generated. An absolute value of an external electric field generated by the spontaneous polarization electret is between 2.7×107 V/m and 1.5×1010 V/m at a position where the other conductive plate is present. Moreover, the thickness of the spontaneous polarization electret is between 1 mm and 60 mm.
摘要翻译：一种用于改善发电量并从自发极化驻极体提取外部电场的静电感应型振动发电装置及其制造方法。一对导电板之间具有间隙设置。由具有预定厚度的自发极化驻极体形成的带电体具有带正电的下表面和带负电荷的上表面。带电体在与一个导电板接触的导电板之间。导电板之间的间隙在垂直于自发极化驻极体表面的方向上移位，由此产生静电电容并产生电力。由自发极化驻极体产生的外部电场的绝对值在存在另一个导电板的位置处为2.7×10 7 V / m至1.5×10 10 V / m。此外，自发极化驻极体的厚度在1mm至60mm之间。

3. 发明申请

US20170331029A1 SENSOR DEVICE FOR SENSOR NETWORKS AND METHOD FOR TRANSMITTING DATA TO SENSOR NETWORK 审中-公开
公开(公告)号：US20170331029A1
公开(公告)日：2017-11-16
申请号：US15512770
申请日：2015-09-10
申请人： TOHOKU UNIVERSITY
发明人： Tomokatsu KONNO , Motoaki HARA , Hiroki KUWANO
IPC分类号： H01L41/113 , H04L12/26
CPC分类号： H01L41/1132 , H04L43/08 , H04L43/0817 , H04L43/50 , H04Q9/00 , H04Q2209/40 , H04Q2209/80 , H04Q2209/88 , H04W84/18
摘要： A sensor device for sensor networks capable of saving power and securing accuracy and a method for transmitting data to a sensor network. The device includes: an oscillation-type sensor that oscillates with a mechanical vibrator; a data processor and communicator that processes a signal output from the oscillation-type sensor and transmits data to an external apparatus; a power supply that supplies electric power to the oscillation-type sensor and the data processor and communicator; and a power supply control unit that controls connection of a power supply line between the power supply and the oscillation-type sensor and connection of a power supply line between the power supply and the data processor and communicator. The power supply control unit connects the power supply line between the power supply and the oscillation-type sensor and then connects the power supply line between the power supply and the data processor and communicator.

4. 发明申请

US20170310345A1 ROTARY SYSTEM MOUNTED PIEZOELECTRIC GENERATOR, SELF-POWERED WIRELESS COMMUNICATION TERMINAL AND WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：US20170310345A1
公开(公告)日：2017-10-26
申请号：US15514196
申请日：2015-10-08
申请人： TOHOKU UNIVERSITY
发明人： Hitoshi KITAYOSHI , Hiroki KUWANO
IPC分类号： H04B1/04 , H04L27/18 , H02N2/18
CPC分类号： H04B1/04 , H01L41/1136 , H02N2/18 , H02N2/186 , H04L27/183
摘要： A rotary system mounted piezoelectric generator has a folded beam structure in which the whole or part of a spring is formed with a piezoelectric generation element, in which one end is provided in a drive rotation system and in which a weight is attached to the other end, the degree of freedom of motion of the weight is two or more-dimensional and thus it is possible to easily change the locus thereof. The beam has a spiral structure such that when the drive rotation system is rotated, a centrifugal force applied to the weight is efficiently modulated by a second force other than the centrifugal force. A self-powered wireless communication terminal is operated with an extremely small amount of power consumption by use of a wireless connection control means and a modulation scattering response antenna which perform multilevel phase-shift keying (MPSK).

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