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EP0365268A2
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EP
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Length longitudinal resonator
Assignee: Seiko Electronic Components Ltd
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Filing: 1989-10-17
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Granted: —
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Expires: 2009-10-17
Abstract
Abstract A length longitudinal piezo-electric resonator having a vibrational section (1,2) and a frame section (3, 3a, 4, 7) surrounding the vibrational section (1,2) characterised in that the vibrational section (1,2) has an oscillating frequency in the range of 1.04 MHz to 1.06 MHz; the frame section (3, 3a, 4, 7) has an overall length (L) of 4000 microns ± 200 microns; and there are means (5, 6) for maintaining a transverse distance (D) between the vibrational section (1,2) and the frame section (3, 3a, 4, 7) in the range of 50 microns to 140 microns.
Inventors
- 👤 Fumio Seiko Electronic Components Ltd. Kimura
- 👤 Masahiro Seiko Electronic Components Ltd. Oizumi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 08:46
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/15; H03H9/17; H03H9/19; H03H9/02; H03H9/05; H03H9/0595
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
A length longitudinal peizo-electric resonator having a vibrational section (1,2) and a frame section (3, 3a, 4, 7) surrounding the vibrational section (1,2) characterised in that the vibrational section (1,2) has an oscillating frequency in the range of 1.04 MHz to 1.06 MHZ; the frame section (3, 3a, 4, 7) has an overall length (L) of 4000 microns - 200 microns; and there are means (5,6) for maintaining a transverse distance (D) between the vibrational section (1,2) and the frame section (3, 3a, 4, 7) in the range of 50 microns to 140 microns.
Claim 2
Dependent Claim
94 words
A length longitudinal peizo-electric resonator having a vibrational section (1,2) and a frame section (3, 3a, 4, 7) surrounding the vibrational section (1,2) characterised in that the vibrational section (1,2) has an oscillating frequency in the range of 1.04 MHz to 1.06 MHZ; the frame section (3, 3a, 4, 7) has an overall length (L) of 4000 microns - 200 microns; and there are means (5,6) for maintaining a transverse distance (D) between the vibrational section (1,2) and the frame section (3, 3a, 4, 7) in the range of 50 microns to 140 microns.
Claim 3
Dependent Claim
57 words
A length longitudinal piezo-electric resonator as claimed in claim 1 characterised in that the said means (5,6) comprises a pair of supporting sections (5,6) connected transversely between the vibrational section (1,2) and parts (3,4) of the frame section (3, 3a, 4, 7), the said distance being constituted by the transverse length (D) of each supporting section (5,6).
Claim 4
Dependent Claim
60 words
A length longitudinal piezo-electric resonator as claimed in claim 1 or 2 characterised in that the frame section (3, 3a, 4, 7) comprises a pair of longitudinal subsections (3, 4), a transverse subsection (3a) connecting the longitudinal subsections (3,4) at one of their ends, and a mounting subsection (7) connected to the longitudinal subsections (3, 4) at their opposite ends.
Claim 5
Dependent Claim
25 words
A length longitudinal piezo-electric resonator as claimed in any preceding claim characterised in that the resonator is formed of an integrally etched quartz crystal plate.
Claim 6
Dependent Claim
23 words
A length longitudinal piezo-electric resonator as claimed in any preceding claim characterised in that the resonator (10) is mounted within a container (20).
Claim 7
Dependent Claim
83 words
A length longitudinal resonator (10) comprising: a vibrational section (1,2) composed of quartz crystal and having an oscillating frequency of 1.04 MHz through to 1.06 MHz; a frame section (3, 3a, 4, 7) surrounding the vibrational section (1,2) such as to determine an overall length (L) of 4000µm ± 200µm of the resonator (10); and means (5, 6) defining a transverse distance (D) between the vibrational section (1,2) and the frame section (3, 3a, 4, 7) in a range from 50µm to 140µm.
Claim 8
Dependent Claim
83 words
A length longitudinal resonator (10) comprising: a vibrational section (1,2) composed of quartz crystal and having an oscillating frequency of 1.04 MHz through to 1.06 MHz; a frame section (3, 3a, 4, 7) surrounding the vibrational section (1,2) such as to determine an overall length (L) of 4000µm ± 200µm of the resonator (10); and means (5, 6) defining a transverse distance (D) between the vibrational section (1,2) and the frame section (3, 3a, 4, 7) in a range from 50µm to 140µm.
References Cited (Backward Citations)
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