专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明专利

JP2002016473A PIEZOELECTRIC ELEMENT AND COMMUNICATION EQUIPMENT FOR MOVING OBJECT USING THE SAME 失效
公开(公告)号：JP2002016473A
公开(公告)日：2002-01-18
申请号：JP2000346761
申请日：2000-11-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORITOKI KATSUNORI , SUGIMOTO MASAHITO , OOTSUCHI TETSUO
IPC分类号： H03H9/17 , H03H3/02 , H03H9/56
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric element and communication equipment for moving object using the same, with which an unwanted sprious can be suppressed and frequency increase is enabled. SOLUTION: This equipment is provided with a piezoelectric substrate 11 composed of piezoelectric materials and a pair of exciting electrodes 12a and 12b formed on first and second principal faces 11a and 12a of the piezoelectric substrate 11, thickness-shear vibrations are performed and the vibration direction of thickness-shear vibrations and side walls 11c and 11d of the piezoelectric substrate 11 are not parallel.

42. 发明专利

JP2000357376A HEAD ACTUATOR MECHANISM 失效
公开(公告)号：JP2000357376A
公开(公告)日：2000-12-26
申请号：JP16745299
申请日：1999-06-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IMADA KATSUMI , MORITOKI KATSUNORI , KAWASAKI OSAMU
IPC分类号： G11B21/10
摘要： PROBLEM TO BE SOLVED: To obtain a head actuator mechanism integrally performing both of coarse movement and fine movement of the head. SOLUTION: The mechanism is provided with a piezoelectric body 6 applied with a specific AC voltage, a protrusion 15 connected with an elastic body 5 which is adhered to one surface of the piezoelectric body 6, a moving body 11 linked with the movement of the protrusion 15, a supporting arm 2 connected with the moving body 11, and a magnetic head 3 arranged on the supporting arm 2, then the voltage is applied on the piezoelectric body 6 so that the specific standing wave is formed on the circumferential direction which a specified point in the surface of the piezoelectric body 6 is substantially made to the center, and the moving body 11 is rotationally moved in the surface substantially vertical to the oscillating direction of the standing wave, then the magnetic head 3 is rotated with the rotational movement of the moving body 11. The both coarse movement and fine movement of the magnetic head 3 are allowed by controlling only the amplitude and/or the frequency of the AC voltage applied on the piezoelectric body 6.

43. 发明专利

JP2000277829A POLARIZATION OF PIEZOELECTRIC PLATE AND MANUFACTURE OF PIEZOELECTRIC TRANSFORMER 失效
公开(公告)号：JP2000277829A
公开(公告)日：2000-10-06
申请号：JP8125799
申请日：1999-03-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKATSUKA HIROSHI , MORITOKI KATSUNORI , OKUYAMA KOJIRO , ASAHI TOSHIYUKI , HASE HIROYUKI , KAWASAKI OSAMU
IPC分类号： H01L41/107 , H01L41/257 , H01L41/22
摘要： PROBLEM TO BE SOLVED: To obtain a reliable piezoelectric transformer by a polarization process at low application voltage by disposing a piezoelectric plate to be polarized along the polarization direction, and dividing it into a plurality of regions so that adjacent regions may overlap each other and giving a polarization process to each region along the polarization direction. SOLUTION: A plurality of polarization support electrodes 103a, 103b are disposed, being separated from each other, in the longitudinal direction of a piezoelectric plate 109. When executing each polarization process, the electrodes 103a, 103b are alternately used. Therefore, regions K1 and K2 which are to be polarized in respective polarization processes have their end parts partially overlapping each other along the longitudinal direction of the piezoelectric plate 109. In one polarization process, an end part of the polarization region is not sufficiently polarized but can be sufficiently polarized in the other polarization process. As a result, uniformed polarization can be achieved without generating the distribution in polarization.

44. 发明专利

JP2000150980A PIEZOELECTRIC TRANSFORMER, DRIVE METHOD AND MANUFACTURE THEREOF 失效
公开(公告)号：JP2000150980A
公开(公告)日：2000-05-30
申请号：JP32030598
申请日：1998-11-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKATSUKA HIROSHI , MORITOKI KATSUNORI , ASAHI TOSHIYUKI , OKUYAMA KOJIRO , KAWASAKI OSAMU
IPC分类号： H01L41/107
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric transformer which is small in size and high in step-up ratio and reliability, a drive method and the manufacturing method thereof. SOLUTION: A piezoelectric transformer carries out a voltage conversion through mechanical vibrations, where the piezoelectric transformer is composed of a low impedance part 111 formed of one or more piezoelectric layers 14 and a high impedance part 112 formed of one or more piezoelectric layers 15, and the piezoelectric layers 14 and 15 of the impedance parts 111 and 112 are set parallel with each other in the direction of polarization. As a result, voltage conversion can be carried out, taking advantage of the vibrations of longitudinal effect (k33).

45. 发明专利

JPH11298056A PIEZOELECTRIC TRANSFORMER AND ITS DRIVE METHOD 失效
公开(公告)号：JPH11298056A
公开(公告)日：1999-10-29
申请号：JP9725598
申请日：1998-04-09
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKATSUKA HIROSHI , MORITOKI KATSUNORI , TAKEDA KATSU , ASAHI TOSHIYUKI , OKUYAMA KOJIRO , KAWASAKI OSAMU
IPC分类号： H01L41/107
摘要： PROBLEM TO BE SOLVED: To lead out a plurality of output terminals in to a single piezoelectric transformer. SOLUTION: This piezoelectric transformer comprises a low-impedance layer 112, which is formed of a plurality of piezoelectric layers, is polarized in the thickness direction and a high-impedance layer 111 which is formed of single layer or a plurality of piezoelectric layers, and is polarized in the same thickness direction both of which are integrally connected with each other in the lengthwise direction. Furthermore, an external output terminal 11 is led out from at least one of internal electrodes 16 of the low-impedance layer 112. Moreover, when it is assumed that the total length of the piezoelectric transformer is L, terminals for external connection are arranged at a position of L/4 from its both ends. The piezoelectric transformer having such a structure is driven by the resonant frequency of lengthwise vertical vibration secondary mode, in which one wavelength becomes similar to the total length L of the piezoelectric transformer.

46. 发明专利

JPH10200368A PIEZOELECTRIC RESONANT COMPONENT AND PRODUCTION THEREOF 失效
公开(公告)号：JPH10200368A
公开(公告)日：1998-07-31
申请号：JP283797
申请日：1997-01-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SOGO HIROSHI , MORITOKI KATSUNORI , NISHIKURA TAKAHIRO , TAKEUCHI TAKAYUKI , MATSUNO KOJI
IPC分类号： H03H3/02 , H03H9/17
摘要： PROBLEM TO BE SOLVED: To expand the area of electric connection between an external electrode and a pull-out electrode and to attain improvement in connection reliability by forming the external electrode so as to electrically connect it on the end face of the pull-out electrode and a main surface where a resin adhesive agent layer for the pull-out electrode is not formed. SOLUTION: A resin adhesive agent layer 15 is formed even at the outermost terminal part of the pull-out electrode 13 so as not to expose one part of the main surface part of the pull-out electrode 13. The pull-out electrode 13 is electrically connected to an external electrode 16 at two end face parts of the element main body. Namely, the pull-out electrode 13 is electrically connected with the external electrode 16 at its end face part B and one part A of the main surface part where the resin adhesive agent layer 15 is not formed. Thus, the area of electric connection between the pull-out electrode 13 and the external electrode 16 is expanded, the problem of disconnection caused by the thermal impulse of solder immersion, etc., can be solved and high reliability can be provided.

47. 发明专利

JPH10163793A PIEZOELECTRIC RESONANCE PARTS AND ITS PRODUCTION 失效
公开(公告)号：JPH10163793A
公开(公告)日：1998-06-19
申请号：JP31433696
申请日：1996-11-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORITOKI KATSUNORI , SOGO HIROSHI , HASE HIROYUKI , IKEDA HIROYASU , MATSUNO KOJI
IPC分类号： H03H3/02 , H03H9/17
摘要： PROBLEM TO BE SOLVED: To provide piezoelectric resonance parts and production thereof with which characteristics are stabilized so as to reduce the degradation of characteristics such as a resonance frequency and to provide satisfactory resonance characteristics. SOLUTION: A piezoelectric resonator 11 forming a pair of exciting electrodes 13 and 13' on both main sides at least is sealed through adhesive layers 17 and 17' by a pair of sealing substrates 16 and 16' so as to respectively face both these main sides and vibrating spaces 19 and 19' are formed at the parts of these adhesive layers 17 and 17' facing the exciting electrodes 13 and 13' at least. These adhesive layers 17 and 17' have elasticity less than 100kg/mm .

48. 发明专利

JPH1070426A MANUFACTURE OF PIEZOELECTRIC RESONATOR COMPONENT 失效
公开(公告)号：JPH1070426A
公开(公告)日：1998-03-10
申请号：JP22632896
申请日：1996-08-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHINODA TOMOHARU , HASE HIROYUKI , MORITOKI KATSUNORI , IKEDA HIROYASU
IPC分类号： H03H9/17 , H03H3/02
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric resonator component having a stable vibration space and an excellent seal characteristic. SOLUTION: A resin layer 5 is formed by applying a thermosetting resin on a seal plate 4 so as to form a vibration space for a piezoelectric resonator 1 and to form for spaces 6 between the piezoelectric resonator 1 and the seal plate 4 in addition to the vibration space. Then a fluororesin sheet is adhered closely to a surface of the resin layer 5 and the resin layer 5 is semi-cured through heating. Succeedingly, the piezoelectric resonator 1 is inserted between the seal plates 4 and they are pressed and heated to completely cure the resin layer 5.

49. 发明专利

JPH1051260A PIEZOELECTRIC RESONATOR 失效
公开(公告)号：JPH1051260A
公开(公告)日：1998-02-20
申请号：JP19871996
申请日：1996-07-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKEDA KATSU , MORITOKI KATSUNORI , NAKAJIMA YASUO , IKEDA HIROYASU , DOI TOSHIKATSU
IPC分类号： H03H9/17
摘要： PROBLEM TO BE SOLVED: To suppress the spurious due to a thickness tilt of a piezoelectric element in the shape of a vibration electrode for a thickness vertical containment type piezoelectric resonator by adding a rectangular vibration electrode to a piezoelectric element that has a tilt in its thickness direction. SOLUTION: A piezoelectric resonator 8 consists of the rectangular vibration electrodes 2 and 3, the extraction electrodes 4 and 6 and the connection electrodes 5 and 7 which are formed on both opposite main surfaces of a piezoelectric element 1. The electrode 2 is connected to the electrode 4 positioned at a point near one of both ends of the element 1 in its longer side direction via the electrode 5, and the electrode 3 is connected to the electrode 6, positioned at a point near the other end of the element 1 in its longer side direction via the electrode 7 respectively. For example, if the element 1 has the thickness vertical containment type resonance frequency of about 25MHz and has a ratio of 0.03 to 0.1% set for a thin part with respect to a thick part of the element 1, the spurious can be reduced most effectively with a ratio of 50 to 70%, set for the shorter side with respect to the longer side of a vibration electrode.

50. 发明专利

JPH09238043A PIEZOELECTRIC RESONANCE COMPONENT AND ITS MANUFACTURE 失效
公开(公告)号：JPH09238043A
公开(公告)日：1997-09-09
申请号：JP4257796
申请日：1996-02-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKEDA KATSU , MORITOKI KATSUNORI , SUGIMOTO MASAHITO , SOGO HIROSHI , HASE HIROYUKI , IKEDA HIROYASU
IPC分类号： H03H3/02 , H03H9/02 , H03H9/17
摘要： PROBLEM TO BE SOLVED: To obtain a stable vibration space and an excellent sealing performance at a low cost by interposing a resin layer blended with plural solid materials with ununiform shape between a seal plate and a piezoelectric resonator so as to form the vibration space at a region in the vicinity of a vibration electrode of a piezoelectric resonator. SOLUTION: A resin layer 5 is placed between a piezoelectric resonator 1 and a seal plate 4 to form a vibration space. In the case that the shape and the size of solid materials are nearly uniform and that the piezoelectric resonator 1 and the sealing plate 4 are formed to be flat plates, the thickness of a resin layer is decided definitely by the size of the solid materials and excellent sealing performance is obtained. However, there are bents or waves in the piezoelectric resonator 1 and the sealing plate 4, then the uneven thickness of the resin layer 5 is increased to lose the sealing performance. Thus, the solid materials whose shape and size are not uniform are blended, and then even when there are bents or waves in the piezoelectric resonator 1 and the sealing plate 4, the solid materials are dispersed properly, and the rate of assisting the uneven thickness of the resin layer 5 is reduced more the case that the shape and the size of the solid materials are nearly uniform, and the rate of losing the air-tightness is decreased.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式