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1. 发明专利

JP2003203223A IMAGE DETECTOR 审中-公开
公开(公告)号：JP2003203223A
公开(公告)日：2003-07-18
申请号：JP2002287693
申请日：2002-09-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORITOKI KATSUNORI , OOTSUCHI TETSUO
IPC分类号： G01B11/24 , G02B6/08 , G06T1/00
摘要： PROBLEM TO BE SOLVED: To read the image density information of a subject and the image information of a document or the like with the same sensor. SOLUTION: This image detector comprises an optical fiber array substrate 101; a circuit conductor layer 108 provided thereon; an image sensor 106 arranged on the circuit conductor layer; a first lighting means arranged so that the incident angle to the incident surface of an optical fiber is larger than the critical angle, and the reflected light direction in the incident surface is the total reflection critical angle in the inner surface of the optical fiber or less to the axial direction of the optical fiber; a second lighting means 105 arranged so that the incident angle to the incident surface of the optical fiber is smaller than the critical angle, and the reflected light direction in the incident surface is the total reflection critical angle on the inner surface of the optical fiber or more to the optical axis of the optical fiber; and a control means 119 for performing the control related to the lighting and extinguishing of each lighting means. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2003069105A Piezoelectric transformer, piezoelectric transformer unit, inverter circuit, light emission controller, and liquid crystal display device 审中-公开
标题翻译：压电变压器，压电变压器单元，逆变器电路，发光控制器和液晶显示装置
公开(公告)号：JP2003069105A
公开(公告)日：2003-03-07
申请号：JP2002130137
申请日：2002-05-01
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： NAKATSUKA HIROSHI , TAKEDA KATSU , MORITOKI KATSUNORI , FUKUSHIMA HIROSHI , ADACHI YUSUKE
IPC分类号： H01L41/107 , H02M3/24
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric transformer that is adaptable to cold cathode tube loads, high in effective coupling coefficient, low in loss, and small in size by using a piezoelectric plate having a single direction of polarization.
SOLUTION: The value of the electrostatic capacitance formed between a first electrode section 12 and a third electrode section 15a constituting a high impedance section can be adjusted easily in accordance with a load by controlling the dimension of the third electrode section 15a. In addition, since the area of a second electrode section 13 constituting a low impedance section is almost equal to that of a fourth electrode section 15b and the third and fourth electrodes sections 15a and 15b are integrally formed, the efficiency of energy propagation can be improved. Consequently, the transformer can maintain a high element efficiency and a small quantity of heat and, in addition, can reduce distortion, because the transformer can maintain the high effective coupling coefficient resulting from the electrode structure and mode of oscillation even when the value of the electrostatic capacitance is changed arbitrarily.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过使用具有单一极化方向的压电板，提供适用于冷阴极管负载的压电变压器，有效耦合系数高，损耗小，体积小。解决方案：通过控制第三电极部分15a的尺寸，可以根据负载容易地调整构成高阻抗部分的第一电极部分12和第三电极部分15a之间形成的静电电容的值。此外，由于构成低阻抗部分的第二电极部分13的面积几乎与第四电极部分15b的面积相同，并且第三和第四电极部分15a和15b一体形成，因此能够提高能量传播的效率。因此，变压器可以保持高的元件效率和少量的热量，并且还可以减少失真，因为变压器可以保持由电极结构和振荡模式产生的高有效耦合系数，即使当静电电容任意改变。

3. 发明专利

JP2002261582A SURFACE ACOUSTIC WAVE DEVICE, ITS MANUFACTURING METHOD, AND CIRCUIT MODULE USING THE SAME 审中-公开
公开(公告)号：JP2002261582A
公开(公告)日：2002-09-13
申请号：JP2001307560
申请日：2001-10-03
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ONISHI KEIJI , NANBA AKIHIKO , SATOU HIROTERU , MORITOKI KATSUNORI , BESSHO YOSHIHIRO , FUJII KUNIHIRO , MURAKAMI KOZO
IPC分类号： H03H9/25 , H03H3/08
摘要： PROBLEM TO BE SOLVED: To obtain an SAW device which can be made smaller than the conventional types, and to provide its manufacturing method. SOLUTION: A surface acoustic wave device is equipped with a piezoelectric board 11, a plurality of interdigital electrodes 12 arranged on the main surface 11a for exciting surface acoustic waves, a plurality of bumps 14 arranged on the main surface 11a, and an insulating sheet 15 arranged, so as to face the main surface 11a. The bumps 14 and the interdigital electrodes 12 are electrically connected together, and the bumps 15 are provided penetrating through the insulating sheet 15.

4. 发明专利

JP2002203689A DRIVING DEVICE AND DRIVING METHOD OF COLD CATHODE FLUORESCENT TUBE USING PIEZOELECTRIC TRANSFORMER 失效
公开(公告)号：JP2002203689A
公开(公告)日：2002-07-19
申请号：JP2000402001
申请日：2000-12-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKATSUKA HIROSHI , YAMAGUCHI TAKESHI , TAKEDA KATSU , MORITOKI KATSUNORI
IPC分类号： H05B41/24 , H01L41/107 , H02M3/24 , H02M7/48 , H05B41/282 , H05B41/285 , H05B41/392
摘要： PROBLEM TO BE SOLVED: To prevent the problem that the output voltage of the piezoelectric transformer becomes high when it is connected to plural cold cathode tubes. SOLUTION: In a piezoelectric transformer in which voltage inputted from the primary side electrode is outputted from the two secondary side electrodes by piezoelectric effect, the driving frequency of the piezoelectric transformer is fixed and the two output powers of the piezoelectric transformer are inputted into the two terminals of the cold cathode fluorescent tubes, and the phase difference between the input and output voltage of the piezoelectric transformer is detected, and control is made so that the phase difference may be constant.

5. 发明专利

JP2002159189A PIEZOELECTRIC ACTUATOR AND DISC RECORDER COMPRISING IT AND ITS CONTROLLING METHOD 失效
公开(公告)号：JP2002159189A
公开(公告)日：2002-05-31
申请号：JP2000349518
申请日：2000-11-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OOTSUCHI TETSUO , IMADA KATSUMI , MORITOKI KATSUNORI
IPC分类号： G11B5/596 , G11B21/02 , H01L41/083 , H02N2/00
摘要： PROBLEM TO BE SOLVED: To obtain a piezoelectric actuator in which a strain being generated in the suspension or arm of a main actuator can be detected previously be detecting the strain of the piezoelectric actuator itself and can be fed forward. SOLUTION: The piezoelectric actuator A comprises a piezoelectric element produced by laying a plurality of piezoelectric layers Ra1-Ra4 and a plurality of electrode plates Pa1-Pa5 alternately wherein a part Ra1 of the plurality of piezoelectric layers Ra1-Ra4 and a part Pa1, Pa2 of the plurality of electrode plates Pa1-Pa5 constitute a sensor part for detecting a strain generated in the piezoelectric actuator A.

6. 发明专利

JP2002048552A PIEZOELECTRIC ELEMENT, VIBRATING GYROSCOPE, AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002048552A
公开(公告)日：2002-02-15
申请号：JP2000234330
申请日：2000-08-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOIKE TAKAFUMI , OOTSUCHI TETSUO , MORITOKI KATSUNORI , YAMASHITA MITSUHIRO
IPC分类号： G01C19/56 , G01C19/5649 , G01C19/5663 , H01L41/08 , H01L41/09 , H01L41/22 , H01L41/29 , H01L41/312 , H01L41/337 , G01P9/04
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric element and a vibrating gyroscope having a resonance frequency without being affected by an adhesive layer between piezoelectric bodies or between the piezoelectric element and a fixed member with a simple structure and capable of detecting an angular velocity at high sensitivity and high precision. SOLUTION: This piezoelectric element 3 is a bimorph piezoelectric element, which is formed by connecting two piezoelectric bodies 10 and 11 having opposite polarization directions to each other and has a beam section and a support section 14. The piezoelectric element 3 is provided with two first electrodes 6a and 6b formed on one of opposite principal planes of the piezoelectric element and split in the width direction of the piezoelectric element and a second electrode 5 formed on the other principal plane of the piezoelectric element. The support section is provided on at least one of the opposite principal planes of the piezoelectric element.

7. 发明专利

JP2002009360A APPARATUS FOR SUPPORTING PIEZOELECTRIC TRANSFORMER AND SUPPORT FOR PIEZOELECTRIC TRANSFORMER 失效
公开(公告)号：JP2002009360A
公开(公告)日：2002-01-11
申请号：JP2000185828
申请日：2000-06-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKATSUKA HIROSHI , YAMAGUCHI TAKESHI , OKUYAMA KOJIRO , TAKEDA KATSU , MORITOKI KATSUNORI
IPC分类号： H01L41/107
摘要： PROBLEM TO BE SOLVED: To provide a supporting structure for piezoelectric transformer in which a piezoelectric transformer is supported stably without causing any deterioration of performance while withstanding an external impact. SOLUTION: The support for piezoelectric transformer employs a material having conductivity and elasticity, contact point or face between the support and the piezoelectric transformer is covered with an adhesive and the outer case employs a material exhibiting insulation and elasticity. Alternatively, the outer case employs a material exhibiting insulation and elasticity and a division is made into a support for use in connection with the piezoelectric transformer and a support for use in connection with a substrate.

8. 发明专利

JP2001136749A PIEZOELECTRIC INVERTER DRIVER 失效
公开(公告)号：JP2001136749A
公开(公告)日：2001-05-18
申请号：JP31922099
申请日：1999-11-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ONO TAKATOSHI , KATAOKA KENJI , ISHIHARA YUKISUKE , NAKATSUKA HIROSHI , MORITOKI KATSUNORI , TAKEDA KATSU
IPC分类号： H02M3/24 , H02M7/493 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To realize a piezoelectric inverter driver for cold cathode-ray tube used in a notebook size personal computer, which can operate even either with an AC adapter power supply or a battery power supply and assures high efficiency in a wide input voltage range and reduction in size, based on the relation with the size of the liquid crystal display. SOLUTION: A piezoelectric inverter driver, which assures high efficiency over a wider input voltage range, and reduction in size can be realized by forming a full bridge circuit having two P-type MOSFETs 13, 15 and two N-type MOSFETs 14, 16 to cause an inductor 17 and a piezoelectric transformer 6 to resonate, a power supply voltage variation is absorbed by utilizing the switching phase difference of the full bridge circuit, reducing an inductor current, by using only one inductor.

9. 发明专利

JP2001053349A PIEZOELECTRIC TRANSFORMER AND MANUFACTURE THEREOF AND MOUNTING STRUCTURE 失效
公开(公告)号：JP2001053349A
公开(公告)日：2001-02-23
申请号：JP22309999
申请日：1999-08-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ASAHI TOSHIYUKI , OKUYAMA KOJIRO , SOGO HIROSHI , HASE HIROYUKI , KAWAKITA KOJI , NAKATSUKA HIROSHI , MORITOKI KATSUNORI
IPC分类号： H01L41/107
摘要： PROBLEM TO BE SOLVED: To facilitate supporting from the outside, and to form structure proper to mounting by integrally forming a section abutted against at least a vibrating section in a fixing section supporting the vibrating section with the vibrating section. SOLUTION: All input section 16 occupies one half in the minor-axis direction of a vibrating section 12 corresponding to a surface, on which input electrodes 14a, 14b are formed, and an output section 17 the other half in the minor-axis direction of the vibrating section 12 on the side, to which a surface on which output electrodes 15a, 15b are formed, belongs, respectively. The piezoelectric transformer 10 having such constitution is driven by elongation vibrations in the major-axis direction of a λ/2 mode, in which a nodal point is positioned at the center of the vibrating section 12, and the vibrating section 12 and a fixing section 13 are formed in a constitution in which they are coupled at a central section. Since the vibrating section 12 and the fixing section 3 have integrally formed constitution at that time, a part such as a conductive rubber need not be used in the case of the mounting of the piezoelectric transformer 10, and the transformer 10 can be mounted only by holding the fixing section 13.

10. 发明专利

JP2000357825A METHOD AND CIRCUIT FOR DRIVING PIEZOELECTRIC TRANSFORMER 失效
公开(公告)号：JP2000357825A
公开(公告)日：2000-12-26
申请号：JP17001599
申请日：1999-06-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKATSUKA HIROSHI , MORITOKI KATSUNORI , KAWASAKI OSAMU
IPC分类号： H01L41/107
摘要： PROBLEM TO BE SOLVED: To prevent the reliability of a piezoelectric transformer from decreasing due to distortion when lighting is started. SOLUTION: When a cold cathode fluorescent tube 118 starts to be lit, a variable oscillation circuit 116 is operated by a starting control circuit 120 and a piezoelectric transformer 110 is driven by a first vibration mode. On the other hand, when the cold cathode fluorescent tube 118 is being lit, a variable oscillation circuit 113 is controlled by a frequency control circuit 114 so that a tube current becomes constant based on the tube current being detected by a tube current detection circuit 115, thus driving the piezoelectric transformer 110 by a second vibration mode.

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