Supersonic transducer

Application Number  00128871 Application Date  2000.09.22 Publication Number  1346047 Publication Date  2002.04.24 Priority Information     International Classification  B06B1/00;G01F1/66   Applicant(s) Name  Krone Measurement Technologies GmbH   Address     Inventor(s) Name  M. Porosek   Patent Agency Code  72001 Patent Agent  su juan AbstractThe ultrasonic transducer possesses a top end mass, a tail end mass, Read more

Capacitive pressure transducer

Application Number  00128193 Application Date  2000.09.30 Publication Number  1297144 Publication Date  2001.05.30 Priority Information   1999/10/6 JP 285234/1999   International Classification  G01L9/12   Applicant(s) Name  K.K. Yamatake   Address     Inventor(s) Name  Ishikura Yoshiyuki;Kimura Shigeo;Masuda Homare   Patent Agency Code  11038 Patent Agent  wang sibeng AbstractA capacitive pressure sensor includes lower and upper wafers, Read more

Ultrasonic transducer

Application Number: 00118819Application Date: 2000.04.20Publication Number: 1286147Publication Date: 2001.03.07Priority Information: 1999/4/23 US 09/296801International: B06B1/06;H01L21/607;B23K1/06;B23K5/20Applicant(s) Name: Hongkong Science and Engineering Univ.Address: Inventor(s) Name: Chenwang Lihua;Ke Shaorong;Zheng JijunPatent Agency Code: 72001Patent Agent: huang lihangAbstract An ultrasonic transducer for welding small elements by applying pressure and ultrasonic energy simulteneously has an ultrasonic stimulator composed of 4 crystal wafers Read more

Essentially safe composite wide-band ultrasonic flow rate transducer

Application Number: 00119040Application Date: 2000.10.19Publication Number: 1287266Publication Date: 2001.03.14Priority Information: International: G01F1/66Applicant(s) Name: Dongnan Univ.Address: Inventor(s) Name: Yuan YiquanPatent Agency Code: 32200Patent Agent: shen lianAbstract The present invention is used in flowrate measurement in pipe. The transducer has shielding metal casing and wave guide connected through nylon sleeve, aluminum ring and rubber sleeve, the outer Read more

Double-coil double-magnet gap transducer

Application Number: 00122197Application Date: 2000.08.18Publication Number: 1285706Publication Date: 2001.02.28Priority Information: 2000/4/14 CN 00222791.6; 1999/8/20 CN 99232403.3International: H04R9/06Applicant(s) Name: Zhang FanAddress: Inventor(s) Name: Zhang FanPatent Agency Code: 00000Patent Agent: Abstract The present invention relates to a double coil double magnetic gap transducer, and is characterized by that its upper and lower magnetic yokes are two inwards 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

Double voltage type transducer

Application Number: 00124062Application Date: 2000.07.19Publication Number: 1281233Publication Date: 2001.01.24Priority Information: 1999/7/19 FR 9909340International: H01H13/64Applicant(s) Name: AlcatelAddress: Inventor(s) Name: J-K. WilainPatent Agency Code: 11038Patent Agent: huang bijingAbstract A press switch comprises an insulating substrate with two conductive zones suitable for triggering first and second functions, respectively. The first zone has at least two portions that are Read more

Multielement self-focusing supersonic transducer

Application Number: 00125772Application Date: 2000.10.26Publication Number: 1288765Publication Date: 2001.03.28Priority Information: International: A61N7/00Applicant(s) Name: Shanghai Jiaotong Univ.Address: Inventor(s) Name: Xiao Xianglin;Sun Fucheng;Xu YongjiangPatent Agency Code: 31201Patent Agent: mao cuiyingAbstract The multielement self-focusing ultrasonic transducer is characterized by that the self-focusing piezoelectric ceramic sheet is fixed on the external shell of said ultrasonic transducer, the external shell 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

Transducer of signal input/output signal device having compensation contraction and enlargement A-D converter

Application Number: 00109008Application Date: 2000.06.01Publication Number: 1276658Publication Date: 2000.12.13Priority Information: 1999/6/2 JP 154853/1999International: H04J13/02;H04Q7/38Applicant(s) Name: NEC Corp.Address: Inventor(s) Name: Nomura TomishigePatent Agency Code: 11021Patent Agent: zhu haibeiAbstract In a spread spectrum transmitter, a number of spread spectrum channel signals are multiplexed into a digital amplitude signal by a multiplexer and the time-average power of the Read more

Magnetic record transducer with electric sheild

Application Number: 00108593Application Date: 2000.05.18Publication Number: 1276592Publication Date: 2000.12.13Priority Information: 1999/5/24 US 09/317,668International: G11B5/115Applicant(s) Name: IBM Corp.Address: Inventor(s) Name: T. Changyong;Duan Shaanlin;Lin TianluoPatent Agency Code: 11038Patent Agent: wang sibengAbstract The present invention is a read/write head for writing information to magnetic media and reading information from magnetic media. It includes a write head element for Read more

Driving circuit, electromechanic acoustic transducer and portable terminal device

Application Number: 00105890Application Date: 2000.04.14Publication Number: 1270489Publication Date: 2000.10.18Priority Information: 1999/4/14 JP 106250/99; 1999/4/27 JP 119443/99; 1999/11/22 JP 331216/99International: H04R9/10;H04R13/02;H04R1/24Applicant(s) Name: Matsushita Electric Ind. Co., Ltd.Address: Inventor(s) Name: Saiki Shuji;Usuki SawakoPatent Agency Code: 72002Patent Agent: han hongAbstract A circuit of the present invention is a driving circuit for driving a vibrator having a mechanical vibration Read more

Power transducer protective device

Application Number: 00104159Application Date: 2000.03.15Publication Number: 1271983Publication Date: 2000.11.01Priority Information: 1999/4/28 JP 121276/99International: H02H7/122Applicant(s) Name: Hitachi, Ltd.Address: Inventor(s) Name: Narita Ro;Sagawa TetsuPatent Agency Code: 31100Patent Agent: zhao guohuaAbstract To simplify the constitution of a protective device for power converter with respect to the secondary failure of the accident caused by the break of open module Read more

Demand falling printing head of piezoelectric bending transducer and control method thereof

Application Number: 00104147Application Date: 2000.03.15Publication Number: 1266783Publication Date: 2000.09.20Priority Information: 1999/3/15 DE 19911399.8International: B41J2/045;B41J2/07Applicant(s) Name: Tally Computerdrucker GmbHAddress: Inventor(s) Name: Joachim Heinzel;Ingo Ederer;Hermann SeitzPatent Agency Code: 11038Patent Agent: zhang zhaodongAbstract Disclosed is a piezo bending transducer drop-on-demand print head and a method of actuating it. Each of the piezo bending transducers of a piezo bending Read more

Electrosonic energy transducer

Application Number: 00102643Application Date: 2000.02.22Publication Number: 1265001Publication Date: 2000.08.30Priority Information: 1999/10/15 JP 293205/99; 1999/2/22 JP 42587/99International: H04R17/00Applicant(s) Name: Murata Mfg. Co., Ltd.Address: Inventor(s) Name: Kishimoto Kenji;Takashima TetsuoPatent Agency Code: 31100Patent Agent: chen liangAbstract The invention provides an electroacoustic transducer which includes a diaphragm including a substantially rectangular metal plate and a substantially rectangular piezoelectric plate Read more

Wideband balance-unbalance transducer used on radio and radio frequency application

Application Number: 00102607Application Date: 2000.02.24Publication Number: 1271976Publication Date: 2000.11.01Priority Information: 1999/2/25 US 09/257,014International: H01P5/10Applicant(s) Name: Lucent Technologies Inc.Address: Inventor(s) Name: J. W. Bouen;R. A. Fulady;M. West;Jr.Patent Agency Code: 11038Patent Agent: jiang shixunAbstract A transmission line balun transformer for providing a single ended output signal from a pair of differential input signals includes two transmission line Read more

Rotating valve magnetic reluctance transducer, and magnetic head contg. same

Application Number: 00101159Application Date: 2000.01.26Publication Number: 1268733Publication Date: 2000.10.04Priority Information: 1999/3/26 JP 084592/1999International: G11B5/00Applicant(s) Name: Fujitsu Co., Ltd.Address: Inventor(s) Name: Numa Kenji;Kanai Kin;Kane JunichiPatent Agency Code: 11038Patent Agent: ma gaoAbstract A spin-valve magnetoresistive sensor includes a free layer of a ferromagnetic material, a pinned layer provided on the free layer and a pinning layer of Read more