Tag Archives: Piezoelectric

Sheet type piezoelectric filter

Application Number: 00122278Application Date: 2000.07.28Publication Number: 1283002Publication Date: 2001.02.07Priority Information: 1999/7/29 JP 214877/99International: H03H9/54Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Urasei MasaoPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract The invention provides a chip piezoelectric filter has a plurality of energy-trap piezoelectric filters and effectively minimizes unnecessary spurious components in areas other than passbands. In… Read More »

Piezoelectric resonator and prezoelectric resonant element

Application Number: 00126486Application Date: 2000.08.28Publication Number: 1286527Publication Date: 2001.03.07Priority Information: 1999/8/27 JP 241381/99International: H03H9/15Applicant(s) Name: Murata Mfg. Co., Ltd.Address: Inventor(s) Name: Imai Shungo;Gamau MasaoPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract First resonant electrodes are provided on one main surface of a piezoelectric plate, a second resonant electrode is provided on the other main surface of… Read More »

Piezoelectric device and its manufacture

Application Number: 00117673Application Date: 2000.05.24Publication Number: 1274992Publication Date: 2000.11.29Priority Information: 1999/5/24 JP 142893/99International: H03H9/15Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Sawai Kunio;Komemura Genshu;Fujii ShujiPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract A piezoelectric device includes a piezoelectric substrate having a piezoelectric driving unit and provided with outer coating substrates laminated on major surfaces thereof via… Read More »

Balanced input output piezoelectric filter

Application Number: 00122466Application Date: 2000.07.31Publication Number: 1283001Publication Date: 2001.02.07Priority Information: 1999/7/29 JP 214727/99International: H03H9/46Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Urasei MasaoPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract The invention provides a balanced input-output piezoelectric filter, the characteristic is that it includes a piezoelectric ceramic substrate provided therein with a ground electrode. Input electrodes… Read More »

Piezoelectric driving device

Application Number: 00126809Application Date: 2000.09.01Publication Number: 1287405Publication Date: 2001.03.14Priority Information: 1999/9/4 DE 19942269.9International: H01L41/08Applicant(s) Name: Koninklijke Philips Electronics N.V.Address: Inventor(s) Name: F. Moraleus Serano;J. Raotel;C. RetsungelPatent Agency Code: 72001Patent Agent: yang songlingAbstract The device has a bimodal piezoelectric resonator with at least two control electrodes for driving the resonator in different directions, a drive circuit… Read More »

Stacked piezoelectric element

Application Number: 00117682Application Date: 2000.05.25Publication Number: 1274993Publication Date: 2000.11.29Priority Information: 1999/5/25 JP 145544/99International: H03H9/00;H03H9/15;H03H9/46Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Kanai Shungo;Gamau MasaoPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract A laminated piezoelectric component or filter is arranged such that a change in the resonance frequency before and after a high temperature heat treatment such… Read More »

Technology for making piezoelectric ceramic sounder medium

Application Number: 00123845Application Date: 2000.08.22Publication Number: 1281212Publication Date: 2001.01.24Priority Information: International: G10H1/00Applicant(s) Name: Jiang ZhishuiAddress: Inventor(s) Name: Jiang Zhishui;Li Shisong;Tian WeiPatent Agency Code: 11138Patent Agent: jiang chongyuAbstract A piezoelectric seramic sounder medium is prepared from Pb3O4 (55-75 wt.%), ZrO2 (11-23.5), TiO2 (7.5-20.5), Sb2O5 (0-5), Nb2O5 (0-5), SrCO3 (0-15), MgO (0-2.5), ZnO (0.-2.0), Bi2O3 (0-1) and… Read More »

Piezoelectric electroacoustic transducer

Application Number: 00126977Application Date: 2000.08.30Publication Number: 1332595Publication Date: 2002.01.23Priority Information: 2000/7/10 JP 207729/00International: H04R17/00Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Takashima Tetsuo;Kishimoto Kenji;Yamamoto TakashiPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract A piezoelectric electroacoustic transducer eliminates the need for the interconnection between main surface electrodes and internal electrodes, and is capable of constructing a bimorph… Read More »

Piezoelectric device

Application Number: 00117686Application Date: 2000.05.24Publication Number: 1274994Publication Date: 2000.11.29Priority Information: 2000/3/22 JP 080558/00; 1999/5/24 JP 143070/99International: H01L41/08;H03H9/17Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Kimura Masahika;Anto Akira;Sawada TakuyaPatent Agency Code: 31100Patent Agent: qian weiminAbstract A piezoelectric device having an electromechanical coefficient, which can be applied to practical uses, is obtained by an energy-trapping effect using… Read More »

Piezoelectric electroacoustic transducer

Application Number: 00124018Application Date: 2000.08.10Publication Number: 1283949Publication Date: 2001.02.14Priority Information: 2000/6/29 JP 195606/00; 1999/8/10 JP 226099/99International: H04R17/00Applicant(s) Name: Murata Mfg. Co., Ltd.Address: Inventor(s) Name: Lishimoto KenjiPatent Agency Code: 31100Patent Agent: li lingAbstract A piezoelectric electro-acoustic transducer is constructed such that adherence of a piezoelectric diaphragm to a casing is easily performed, a sufficient supporting strength… Read More »

Piezoelectric loudspeaker

Application Number: 00118312Application Date: 2000.06.12Publication Number: 1277531Publication Date: 2000.12.20Priority Information: 1999/6/11 JP 202128/99International: H04R17/00Applicant(s) Name: Nippon Pioneer Corp.Address: Inventor(s) Name: Nakazono Jiro;Watanabe ShigeruPatent Agency Code: 72001Patent Agent: wu limengAbstract To excellently perform reproduction to an ultra high-pitch sound by a simple structure by connecting and fixing one of the electrodes of a piezoelectric element to… Read More »

Piezoelectric ceramics composition and piezoelectric device using same

Application Number: 00126205Application Date: 2000.08.25Publication Number: 1286475Publication Date: 2001.03.07Priority Information: 2000/5/31 JP 161831/00; 1999/8/26 JP 240145/99International: C04B35/01;H01B3/12;H01G4/12;H01L41/187;H03H9/00Applicant(s) Name: Murata Mfg. Co., Ltd.Address: Inventor(s) Name: Sawada Takuya;Kimura Masahiko;Ando YoPatent Agency Code: 31100Patent Agent: zhou chengzeAbstract A piezoelectric ceramic composition mainly contains a component of the formula SrBi2Nb2O9 and includes Si in a proportion of more than… Read More »

Piezoelectric ceramic composition and piezoelectric ceramic element using the same

Application Number: 00119216Application Date: 2000.05.24Publication Number: 1274699Publication Date: 2000.11.29Priority Information: 1999/5/24 JP 143069/99; 1999/8/27 JP 241358/99; 2000/2/15 JP 36154/00International: C04B35/01;H01L41/187;H03H9/00Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Sawada Takuari;Kimura Masahiko;Anto AkiraPatent Agency Code: 31100Patent Agent: bai yihuaAbstract A piezoelectric ceramic composition that can yield a piezoelectric ceramic capable of being fired at a temperature as… Read More »

Piezoelectric ceramics composition and prezoelectric device using same

Application Number: 00126206Application Date: 2000.08.25Publication Number: 1286476Publication Date: 2001.03.07Priority Information: 2000/4/18 JP 116771/00; 1999/8/26 JP 240144/99International: H01B3/12;C04B35/01;H01G4/12;H01L41/187;H03H9/00Applicant(s) Name: Murata Mfg. Co., Ltd.Address: Inventor(s) Name: Sawada Takuya;Kimura Masahiko;Ando YoPatent Agency Code: 31100Patent Agent: zhou chengzeAbstract A piezoelectric ceramic composition mainly contains a component of the formula SrBi2Nb2O9 and includes at least a trivalent metallic element other… Read More »

Optical path converting method and device with piezoelectric bicrystal vibrator

Application Number: 00119476Application Date: 2000.07.19Publication Number: 1289191Publication Date: 2001.03.28Priority Information: International: H04B10/12Applicant(s) Name: Lianneng Science & Technology Co., Ltd. ShanghaiAddress: Inventor(s) Name: Chen Weicheng;Li Yi;LI Cheng'enPatent Agency Code: 31208Patent Agent: huang guijuanAbstract The present invention relates to optical fibre communication, including: utilizing opical circuit switching equipment, including optical fibre switch, switchable optical circuit gyroscope and… Read More »

Piezoelectric ceramics composition and piezoelectric device using same

Application Number: 00126220Application Date: 2000.08.25Publication Number: 1286477Publication Date: 2001.03.07Priority Information: 2000/5/31 JP 161832/00; 1999/8/26 JP 240146/99International: H01B3/12;C04B35/462;H01G4/12;H01L41/187;H03H9/00Applicant(s) Name: Murata Mfg. Co., Ltd.Address: Inventor(s) Name: Sawada Takuya;Kimura Masahiko;Ando YoPatent Agency Code: 31100Patent Agent: zhou chengzeAbstract To provide a piezoelectric ceramic composition predominantly comprising CaBi4Ti4O15, which composition can be fired at 1100 DEG C. or lower, which… Read More »

Piezoelectric ceramics and piezoelectric device using said piezoelectric ceramics

Application Number: 00119949Application Date: 2000.06.30Publication Number: 1292362Publication Date: 2001.04.25Priority Information: 1999/7/2 JP 188338/99International: C04B35/491;H01L41/00Applicant(s) Name: TDK Corp.Address: Inventor(s) Name: Tsubokura Takeiko;Tsukata Takeo;Nomura TakeshiPatent Agency Code: 72001Patent Agent: lu xinhuaAbstract A piezoelectric ceramic having a carbon content after sintering of less than 37 ppm by weight and a piezoelectric device such as a ceramic resonator, ceramic… Read More »

Method for mfg. piezoelectric ceramics

Application Number: 00126229Application Date: 2000.08.16Publication Number: 1287988Publication Date: 2001.03.21Priority Information: 1999/8/16 JP 229734/99International: C04B35/465;C04B35/495;C04B35/653;H01L41/24Applicant(s) Name: Murata Mfg. Co., Ltd.Address: Inventor(s) Name: Kimura Masahiko;Anto AkiraPatent Agency Code: 31100Patent Agent: zhou chengzeAbstract A ceramic composition (sample) mainly includes CaBi4Ti4O15 or another compound having a layered perovskite crystal structures and exhibiting ferroelectricity at ordinary temperature. The sample is… Read More »

Support structure for piezoelectric resonator, electronic device, ladder filter and communication apparatus

Application Number: 00120334Application Date: 2000.07.05Publication Number: 1279535Publication Date: 2001.01.10Priority Information: 1999/7/5 JP 190328/99International: H03H9/05;H03H9/15;H03H9/54Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Unami Shungen;Kakuta TatsumoriPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract A piezoelectric device includes a substrate. The substrate is provided with pattern electrodes located on a major surface thereof. Intermediate portions of external electrodes of… Read More »

Method for mfg piezoelectric ceramics composition and piezoelectric ceramics element, and piezoelectric laminated sinter

Application Number: 00126250Application Date: 2000.08.25Publication Number: 1286478Publication Date: 2001.03.07Priority Information: 2000/7/31 JP 231619/00; 1999/8/25 JP 238103/99; 1999/8/25 JP 238104/99; 1999/8/25 JP 238105/99; 1999/8/25 JP 238106/99; 2000/8/10 JP 242883/00International: C04B35/01;C04B35/462;H01B3/12;H01L41/187;H03H9/13;H03H9/15Applicant(s) Name: Murata Mfg. Co., Ltd.Address: Inventor(s) Name: Hayashi Hiroichi;Ando Yo;Hisaki ToshikatsuPatent Agency Code: 31100Patent Agent: zhou chengzeAbstract A piezoelectric ceramic composition capable of obtaining a piezoelectric… Read More »

Method of producing piezoelectric film with orientation

Application Number: 00121971Application Date: 2000.07.27Publication Number: 1291825Publication Date: 2001.04.18Priority Information: 1999/7/29 US 09/363,758International: H01L41/22;H03H3/00;H03H9/54Applicant(s) Name: Lucent Technologies Inc.Address: Inventor(s) Name: H.A. HaginsPatent Agency Code: 11038Patent Agent: luo echuanAbstract Highly oriented thin films exhibiting good piezoelectric effects are formed in a reaction chamber. This is done by bombarding a target comprising a piezoelectric material. Dislodged particles… Read More »

Piezoelectric filtering device

Application Number: 00126369Application Date: 2000.09.07Publication Number: 1287409Publication Date: 2001.03.14Priority Information: 1999/9/7 JP 253112/99International: H03H9/15;H03H9/54Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Gamau MasaoPatent Agency Code: 31100Patent Agent: li xiangAbstract The present invention relates to a piezoelectric filter avoiding the defect of the known technology. More particularly, a preferable embodiment of the present invention provides an… Read More »

Piezoelectric resonator

Application Number: 00122205Application Date: 2000.07.24Publication Number: 1282144Publication Date: 2001.01.31Priority Information: 1999/7/23 JP 209964/99International: H03H9/05;H03H9/15Applicant(s) Name: Murata Manufacturing Co., ltd.Address: Inventor(s) Name: Yamamoto Takashi;Yokoi YuyukiPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract The present invention relates to a piezoelectric resonator comprising an internal electrode sandwiched between two layers of square-shaped ceramic piezoelectric substrates; surface electrodes installed on… Read More »

Piezoelectric actuated chemical mechanical polishing tray

Application Number: 00126387Application Date: 2000.09.12Publication Number: 1288252Publication Date: 2001.03.21Priority Information: 1999/9/13 US 09/395,393International: B24B49/00;H01L21/304Applicant(s) Name: International Business Machine Corp.Address: Inventor(s) Name: Karl E. Bergs;Kenith M. Davids;William F. LandersPatent Agency Code: 11038Patent Agent: du rixinAbstract A chemical-mechanical polishing (CMP) control system controls distribution of pressure across the backside of a semiconductor wafer being polished. The system… Read More »

Piezoelectric ceramic material and piezoelectric ceramic sintered body produced by the same

Application Number: 00108875Application Date: 2000.05.19Publication Number: 1274700Publication Date: 2000.11.29Priority Information: 1999/5/20 JP 139780/99International: C04B35/491;C04B35/64;H01L41/187Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Yoshizaawa Isami;Horikawa KatsuhiroPatent Agency Code: 31100Patent Agent: sha yongshengAbstract A piezoelectric ceramic material able to form a piezoelectric ceramic sintered body having such characteristics as a small electromechanical coupling coefficient, small resonant resistance and… Read More »

Piezoelectric element

Application Number: 00108683Application Date: 2000.05.15Publication Number: 1274197Publication Date: 2000.11.22Priority Information: 1999/5/14 JP 134018/99International: H03H9/15Applicant(s) Name: Murata Mfg. Co. Ltd.Address: Inventor(s) Name: Sawai Hisahitoo;Hashimoto HisayukiPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract A low-cost piezoelectric component which is efficiently manufactured and which provides excellent electrical characteristics, includes a piezoelectric element, a damping member, a supporting substrate for… Read More »

Regulating method of piezoelectric resonator group delay characteristics

Application Number: 00108267Application Date: 2000.04.26Publication Number: 1271995Publication Date: 2000.11.01Priority Information: 1999/4/26 JP 117596/99; 2000/1/31 JP 21500/00International: H03H3/02;H03H9/15;H03H9/54Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Ikida KoPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract A group-delay-characteristics adjusting method allows group-delay characteristics of piezoelectric resonators to be easily adjusted without affecting the electrical characteristics thereof. Piezoelectric resonators are… Read More »

Piezoelectric element drive circuit and method

Application Number: 00107735Application Date: 2000.05.24Publication Number: 1274644Publication Date: 2000.11.29Priority Information: 1999/5/24 JP 143647/1999International: B41J2/045Applicant(s) Name: NEC Corp.Address: Inventor(s) Name: Narai KyoichiPatent Agency Code: 11021Patent Agent: liu xiaofengAbstract A piezoelectric element driving circuit for driving a plurality of piezoelectric elements disposed in a plurality of head units is disclosed, that comprises a plurality of power amplifiers… Read More »

Piezoelectric device and piezoelectric resonator using same

Application Number: 00107056Application Date: 2000.04.24Publication Number: 1271998Publication Date: 2000.11.01Priority Information: 1999/4/23 JP 117224/99; 1999/4/23 JP 117226/99; 1999/10/5 JP 284278/99International: H03H9/10Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Yamamoto Takashi;Yokoi YusukoichiPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract The invention provides a piezoelectric oscillator. A load capacitive element is mounted on the upper face of a substrate,… Read More »

Liquid detecting piezoelectric device, liquid container and mounting module body thereof

Application Number: 00106261Application Date: 2000.05.19Publication Number: 1274645Publication Date: 2000.11.29Priority Information: 1999/5/20 JP 139683/99; 1999/5/27 JP 147538/99; 1999/9/10 JP 256522/99International: B41J2/12;B41J2/175Applicant(s) Name: Seiko Epson Corp.Address: Inventor(s) Name: Usui Minoru;Tsukata Kenji;Kanatani MunehidePatent Agency Code: 11216Patent Agent: liu jiyangAbstract A liquid detection device attached on a liquid container for detecting a liquid consumption status of the liquid contained… Read More »