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US4556929A Expired / Lapsed US ⏱️ 0.0 years remaining

Multi-layer ceramic capacitor

Assignee: Murata Manufacturing Co Ltd
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Filing: 1984-07-05
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Granted: 1985-12-03
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Expires: 2004-07-05
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Abstract

Abstract A multi-layer ceramic capacitor includes a rectangular ceramic body with terminal electrodes provided on its opposite ends. A set of electrode, including a plurality of electrode layers, extends from one terminal electrode into the ceramic body. A similar set of electrode extends from the other terminal electrode into the ceramic body. The plurality of electrode layers have their edges arranged in tiers and, therefore, the equipotential surfaces appearing around the tip end of electrode layers can be dispersed.

Inventors

  • 👤 Yukio Tanaka
  • 👤 Yoshikazu Chigodo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 04:47
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/30

Claims Analysis

Total Claims: 22
Claim 1
Independent Claim 152 words
A multi-layer ceramic capacitor comprising: a ceramic body having first and second surfaces; first and second terminal electrodes provided on said first and second surfaces, respectively; at least one set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said one set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; and at least one set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said one set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first mentioned set of electrode, said plurality of electrode layers having their edges arranged in tiers, thereby dispersing the equipotential surfaces appearing around an edge portion of said electrode layers.
Claim 2
Dependent Claim 152 words
A multi-layer ceramic capacitor comprising: a ceramic body having first and second surfaces; first and second terminal electrodes provided on said first and second surfaces, respectively; at least one set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said one set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; and at least one set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said one set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first mentioned set of electrode, said plurality of electrode layers having their edges arranged in tiers, thereby dispersing the equipotential surfaces appearing around an edge portion of said electrode layers.
Claim 3
Dependent Claim 53 words
A multi-layer ceramic capacitor as claimed in claim 1, wherein each set of electrode includes first and second electrode layers with the first electrode layer being larger in size than the second electrode layer, said first electrode layer of said one set of electrode being positioned away from the other set of electrode.
Claim 4
Dependent Claim 59 words
A multi-layer ceramic capacitor as claimed in claim 1, wherein said set of electrode includes first, second and third electrode layers with the second electrode layer being positioned between the first and third electrode layers, said second electrode layer having at least a tip end portion thereof positioned outside a space defined between said first and third electrode layers.
Claim 5
Dependent Claim 29 words
A multi-layer ceramic capacitor as claimed in claim 3, wherein said second electrode layer of said set of electrode is arranged such that a center portion thereof is removed.
Claim 6
Dependent Claim 28 words
A multi-layer ceramic capacitor as claimed in claim 3, wherein said second electrode layer of said set of electrode is arranged in a stripe in a U-shaped configuration.
Claim 7
Dependent Claim 37 words
A multi-layer ceramic capacitor as claimed in claim 3, wherein said second electrode layer of said set of electrode has a side edge portion thereof positioned outside a space defined between said first and second electrode layers.
Claim 8
Dependent Claim 64 words
A multi-layer ceramic capacitor as claimed in claim 1, wherein said set of electrode includes first, second, third and fourth electrode layers with the second and third electrode layer being positioned between the first and fourth electrode layers, said second and third electrode layer having at least a tip end portion thereof positioned outside a space defined between said first and fourth electrode layers.
Claim 9
Dependent Claim 31 words
A multi-layer ceramic capacitor as claimed in claim 7, wherein said second and third electrode layers of said set of electrode are arranged such that a center portion thereof is removed.
Claim 10
Dependent Claim 30 words
A multi-layer ceramic capacitor as claimed in claim 7, wherein said second and third electrode layers of said set of electrode are arranged in a stripe in a U-shaped configuration.
Claim 11
Dependent Claim 105 words
A multi-layer ceramic capacitor as claimed in claim 1, wherein said set of electrode includes first, second, third, fourth and fifth electrode layers with the third electrode layer being positioned between the second and fourth electrode layers, and the second, third and four electrode layers being positioned between the first and fifth electrode layers, said second and fourth electrode layers having at least a tip end portion thereof positioned outside a space defined between said first and fifth electrode layers, and said third electrode layer having at least a tip end portion thereof positioned outside a space defined between said second and fourth electrode layers.
Claim 12
Dependent Claim 32 words
A multi-layer ceramic capacitor as claimed in claim 10, wherein said second, third and fourth electrode layers of said set of electrode are arranged such that a center portion thereof is removed.
Claim 13
Dependent Claim 31 words
A multi-layer ceramic capacitor as claimed in claim 10, wherein said second, third and fourth electrode layers of said set of electrode are arranged in a stripe in a U-shaped configuration.
Claim 14
Dependent Claim 147 words
A multi-layer ceramic capacitor comprising: a ceramic body having first and second surfaces; first and second terminal electrodes provided on said first and second surfaces, respectively; first set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said first set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; and second set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said second set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first set of electrode, said plurality of electrode layers having their edges arranged in tiers, thereby dispersing the equipotential surfaces appearing around an edge portion of said electrode layers.
Claim 15
Dependent Claim 147 words
A multi-layer ceramic capacitor comprising: a ceramic body having first and second surfaces; first and second terminal electrodes provided on said first and second surfaces, respectively; first set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said first set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; and second set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said second set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first set of electrode, said plurality of electrode layers having their edges arranged in tiers, thereby dispersing the equipotential surfaces appearing around an edge portion of said electrode layers.
Claim 16
Dependent Claim 43 words
A multi-layer ceramic capacitor as claimed in claim 13, wherein said first, second and third electrode layers of said first set of electrode are positioned at the same level as said first, second and third electrode layers of said second set of electrode.
Claim 17
Dependent Claim 220 words
A multi-layer ceramic capacitor comprising: a ceramic body having first and second surfaces; first and second terminal electrodes provided on said first and second surfaces, respectively; first set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said first set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; second set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said second set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first set of electrode, said plurality of electrode layers having their edges arranged in tiers; and third set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said second set of electrode positioned between said first and third sets of electrode, said third set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first and second sets of electrode, said plurality of electrode layers having their edges arranged in tiers, thereby dispersing the equipotential surfaces appearing around an edge portion of said electrode layers.
Claim 18
Dependent Claim 220 words
A multi-layer ceramic capacitor comprising: a ceramic body having first and second surfaces; first and second terminal electrodes provided on said first and second surfaces, respectively; first set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said first set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; second set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said second set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first set of electrode, said plurality of electrode layers having their edges arranged in tiers; and third set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said second set of electrode positioned between said first and third sets of electrode, said third set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first and second sets of electrode, said plurality of electrode layers having their edges arranged in tiers, thereby dispersing the equipotential surfaces appearing around an edge portion of said electrode layers.
Claim 19
Dependent Claim 222 words
A multi-layer ceramic capacitor comprising: a ceramic body having first and second surfaces; first and second terminal electrodes provided on said first and second surfaces, respectively; first set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said first set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; second set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said second set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first set of electrode, said plurality of electrode layers having their edges arranged in tiers; third set of electrode extending inside said ceramic body, said third set of electrode including a plurality of electrode layers extending substantially parallel to each other and provided adjacent but in an electrically insulated manner from any of said first and second set of electrodes so as to partly confronting said third set of electrode with each of said first and second sets of electrodes, said plurality of electrode layers having their edges arranged in tiers, thereby dispersing the equipotential surfaces appearing around an edge portion of said electrode layers.
Claim 20
Dependent Claim 222 words
A multi-layer ceramic capacitor comprising: a ceramic body having first and second surfaces; first and second terminal electrodes provided on said first and second surfaces, respectively; first set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said first set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; second set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said second set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first set of electrode, said plurality of electrode layers having their edges arranged in tiers; third set of electrode extending inside said ceramic body, said third set of electrode including a plurality of electrode layers extending substantially parallel to each other and provided adjacent but in an electrically insulated manner from any of said first and second set of electrodes so as to partly confronting said third set of electrode with each of said first and second sets of electrodes, said plurality of electrode layers having their edges arranged in tiers, thereby dispersing the equipotential surfaces appearing around an edge portion of said electrode layers.
Claim 21
Dependent Claim 330 words
A multi-layer ceramic capacitor comprising: a ceramic body having first and second surfaces; first and second terminal electrodes provided on said first and second surfaces, respectively; first set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said first set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; second set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said second set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first set of electrode, said plurality of electrode layers having their edges arranged in tiers; third set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said third set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; fourth set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said fourth set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said third set of electrode, said plurality of electrode layers having their edges arranged in tiers; fifth set of electrode extending inside said ceramic body, said fifth set of electrode including a plurality of electrode layers extending substantially parallel to each other and provided adjacent but in an electrically insulated manner from any of said first, second, third and fourth set of electrodes so as to partly confronting said fifth electrode with each of said first, second, third and fourth sets of electrodes, said plurality of electrode layers having their edges arranged in tiers, thereby dispersing the equipotential surfaces appearing around an edge portion of said electrode layers.
Claim 22
Dependent Claim 330 words
A multi-layer ceramic capacitor comprising: a ceramic body having first and second surfaces; first and second terminal electrodes provided on said first and second surfaces, respectively; first set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said first set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; second set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said second set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said first set of electrode, said plurality of electrode layers having their edges arranged in tiers; third set of electrode extending from said first surface into said ceramic body and electrically connected to said first terminal electrode, said third set of electrode including a plurality of electrode layers extending substantially parallel to each other, said plurality of electrode layers having their edges arranged in tiers; fourth set of electrode extending from said second surface into said ceramic body and electrically connected to said second terminal electrode, said fourth set of electrode including a plurality of electrode layers extending substantially parallel to each other and also to said third set of electrode, said plurality of electrode layers having their edges arranged in tiers; fifth set of electrode extending inside said ceramic body, said fifth set of electrode including a plurality of electrode layers extending substantially parallel to each other and provided adjacent but in an electrically insulated manner from any of said first, second, third and fourth set of electrodes so as to partly confronting said fifth electrode with each of said first, second, third and fourth sets of electrodes, said plurality of electrode layers having their edges arranged in tiers, thereby dispersing the equipotential surfaces appearing around an edge portion of said electrode layers.

References Cited (Backward Citations)

US2828454A Cited
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US3539886A Cited
US3668482A Cited
US4082906A Cited
US4424615A Cited
US4419713A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-12-02 1989-06-03 1989-12-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-12-02 1993-06-03 1993-12-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-12-02 1997-06-03 1997-12-03 $7700.00 Window Closed / Lapsed

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