GB2238907B - Piezo-electric oscillator - Google Patents

Piezo-electric oscillator

Info

Publication number
GB2238907B
GB2238907B GB9025626A GB9025626A GB2238907B GB 2238907 B GB2238907 B GB 2238907B GB 9025626 A GB9025626 A GB 9025626A GB 9025626 A GB9025626 A GB 9025626A GB 2238907 B GB2238907 B GB 2238907B
Authority
GB
United Kingdom
Prior art keywords
piezo
electric oscillator
oscillator
electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
GB9025626A
Other versions
GB2238907A (en
GB9025626D0 (en
Inventor
Mitsuyuki Sugita
Hirofumi Yanagi
Isamu Hoshino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seikosha KK
Original Assignee
Seikosha KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seikosha KK filed Critical Seikosha KK
Publication of GB9025626D0 publication Critical patent/GB9025626D0/en
Publication of GB2238907A publication Critical patent/GB2238907A/en
Application granted granted Critical
Publication of GB2238907B publication Critical patent/GB2238907B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/13—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
    • H03H9/132—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials characterized by a particular shape
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02062—Details relating to the vibration mode
    • H03H9/0207—Details relating to the vibration mode the vibration mode being harmonic
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/19—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator consisting of quartz
GB9025626A 1989-11-30 1990-11-26 Piezo-electric oscillator Expired - Lifetime GB2238907B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1311838A JP2813996B2 (en) 1989-11-30 1989-11-30 3rd overtone AT-cut crystal unit

Publications (3)

Publication Number Publication Date
GB9025626D0 GB9025626D0 (en) 1991-01-09
GB2238907A GB2238907A (en) 1991-06-12
GB2238907B true GB2238907B (en) 1993-05-26

Family

ID=18022010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9025626A Expired - Lifetime GB2238907B (en) 1989-11-30 1990-11-26 Piezo-electric oscillator

Country Status (5)

Country Link
JP (1) JP2813996B2 (en)
KR (1) KR940005377B1 (en)
GB (1) GB2238907B (en)
MY (1) MY108578A (en)
SG (1) SG26350G (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0300375D0 (en) * 2003-02-12 2003-02-12 Attana Ab Piezoelectric resonator
US8164235B2 (en) * 2007-08-03 2012-04-24 Daishinku Corporation Piezoelectric resonator
CN108123694A (en) * 2018-01-03 2018-06-05 宁波大红鹰学院 A kind of piezoelectric thin film vibrator of Electrode Optimum Design

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB928955A (en) * 1960-11-08 1963-06-19 Gen Electric Co Ltd Improvements in or relating to electric filter networks
US3872411A (en) * 1971-11-17 1975-03-18 Meidensha Electric Mfg Co Ltd Quartz crystal resonator and a method for fabrication thereof
GB2020898A (en) * 1978-04-05 1979-11-21 Citizen Watch Co Ltd Piezoelectric vibrator
GB2048565A (en) * 1979-03-12 1980-12-10 Seikosha Kk Thicknessshear mode piezo-electric vibrator
US4375604A (en) * 1981-02-27 1983-03-01 The United States Of America As Represented By The Secretary Of The Army Method of angle correcting doubly rotated crystal resonators
WO1986006228A1 (en) * 1985-04-11 1986-10-23 Toyo Communication Equipment Co., Ltd. Piezo-electric resonator for generating overtones

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641571B1 (en) * 1976-09-15 1977-06-08 Siemens Ag THICK SHEAR VIBRATORS USED AS OBSERVE QUARTZ
JPS63284920A (en) * 1987-05-16 1988-11-22 Nippon Dempa Kogyo Co Ltd Piezoelectric oscillator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB928955A (en) * 1960-11-08 1963-06-19 Gen Electric Co Ltd Improvements in or relating to electric filter networks
US3872411A (en) * 1971-11-17 1975-03-18 Meidensha Electric Mfg Co Ltd Quartz crystal resonator and a method for fabrication thereof
GB2020898A (en) * 1978-04-05 1979-11-21 Citizen Watch Co Ltd Piezoelectric vibrator
GB2048565A (en) * 1979-03-12 1980-12-10 Seikosha Kk Thicknessshear mode piezo-electric vibrator
US4375604A (en) * 1981-02-27 1983-03-01 The United States Of America As Represented By The Secretary Of The Army Method of angle correcting doubly rotated crystal resonators
WO1986006228A1 (en) * 1985-04-11 1986-10-23 Toyo Communication Equipment Co., Ltd. Piezo-electric resonator for generating overtones

Also Published As

Publication number Publication date
SG26350G (en) 1995-09-18
KR910010839A (en) 1991-06-29
KR940005377B1 (en) 1994-06-17
JPH03172011A (en) 1991-07-25
MY108578A (en) 1996-10-31
GB2238907A (en) 1991-06-12
GB9025626D0 (en) 1991-01-09
JP2813996B2 (en) 1998-10-22

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950509

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20101125